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transcriptase polymerase chain reaction</title> <meta name="description" content="Search results for: reverse transcriptase polymerase chain reaction"> <meta name="keywords" content="reverse transcriptase polymerase chain reaction"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" 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class="col-md-9 mx-auto"> <form method="get" action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="reverse transcriptase polymerase chain reaction"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 4524</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: reverse transcriptase polymerase chain reaction</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4524</span> Negative RT-PCR in a Newborn Infected with Zika Virus: A Case Report</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vallejo%20Michael">Vallejo Michael</a>, <a href="https://publications.waset.org/abstracts/search?q=Acu%C3%B1a%20Edgar"> Acuña Edgar</a>, <a href="https://publications.waset.org/abstracts/search?q=Roa%20Juan%20David"> Roa Juan David</a>, <a href="https://publications.waset.org/abstracts/search?q=Pe%C3%B1uela%20Rosa"> Peñuela Rosa</a>, <a href="https://publications.waset.org/abstracts/search?q=Parra%20Alejandra"> Parra Alejandra</a>, <a href="https://publications.waset.org/abstracts/search?q=Casallas%20Daniela"> Casallas Daniela</a>, <a href="https://publications.waset.org/abstracts/search?q=Rodriguez%20Sheyla"> Rodriguez Sheyla </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Congenital Zika Virus Syndrome is an entity composed by a variety of birth defects presented in newborns that have been exposed to the Zika Virus during pregnancy. The syndrome characteristic features are severe microcephaly, cerebral tissue abnormalities, ophthalmological abnormalities such as uveitis and chorioretinitis, arthrogryposis, clubfoot deformity and muscular tone abnormalities. The confirmatory test is the Reverse transcription polymerase chain reaction (RT-PCR) associated to the physical findings. Here we present the case of a newborn with microcephaly whose mother presented a confirmed Zika Virus infection during the third trimester of pregnancy, despite of the evident findings and the history of Zika infection the RT-PCR in amniotic and cerebrospinal fluid of the newborn was negative. RT-PCR has demonstrated a low sensibility in samples with low viral loads, reason why, we propose a clinical diagnosis in patients with clinical history of Zika Virus infection during pregnancy accompanied by evident clinical manifestations of the child. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=congenital" title="congenital">congenital</a>, <a href="https://publications.waset.org/abstracts/search?q=Zika%20virus" title=" Zika virus"> Zika virus</a>, <a href="https://publications.waset.org/abstracts/search?q=microcephaly" title=" microcephaly"> microcephaly</a>, <a href="https://publications.waset.org/abstracts/search?q=reverse%20transcriptase%20polymerase%20chain%20reaction" title=" reverse transcriptase polymerase chain reaction"> reverse transcriptase polymerase chain reaction</a> </p> <a href="https://publications.waset.org/abstracts/84563/negative-rt-pcr-in-a-newborn-infected-with-zika-virus-a-case-report" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84563.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">211</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4523</span> Eradication of Apple mosaic virus from Corylus avellana L. via Cryotherapy and Confirmation of Virus-Free Plants via Reverse Transcriptase Polymerase Chain Reaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ergun%20Kaya">Ergun Kaya</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Apple mosaic virus (ApMV) is an ilarvirus causing harmful damages and product loses in many plant species. Because of xylem and phloem vessels absence, plant meristem tissues used for meristem cultures are virus-free, but sometimes only meristem cultures are not sufficient for virus elimination. Cryotherapy, a new method based on cryogenic techniques, is used for virus elimination. In this technique, 0.1-0.3mm meristems are excised from organized shoot apex of a selected in vitro donor plant and these meristems are frozen in liquid nitrogen (-196 °C) using suitable cryogenic technique. The aim of this work was to develop an efficient procedure for ApMV-free hazelnut via cryotherapy technique and confirmation of virus-free plants using Reverse Transcriptase-PCR technique. 100% virus free plantlets were obtained using droplet-vitrification method involved cold hardening in vitro cultures of hazelnut, 24 hours sucrose preculture of meristems on MS medium supplemented with 0.4M sucrose, and a 90 min PVS2 treatment in droplets. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=droplet%20vitrification" title="droplet vitrification">droplet vitrification</a>, <a href="https://publications.waset.org/abstracts/search?q=hazelnut" title=" hazelnut"> hazelnut</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20nitrogen" title=" liquid nitrogen"> liquid nitrogen</a>, <a href="https://publications.waset.org/abstracts/search?q=PVS2" title=" PVS2"> PVS2</a> </p> <a href="https://publications.waset.org/abstracts/89231/eradication-of-apple-mosaic-virus-from-corylus-avellana-l-via-cryotherapy-and-confirmation-of-virus-free-plants-via-reverse-transcriptase-polymerase-chain-reaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/89231.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">160</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4522</span> Exploring the Design of Prospective Human Immunodeficiency Virus Type 1 Reverse Transcriptase Inhibitors through a Comprehensive Approach of Quantitative Structure Activity Relationship Study, Molecular Docking, and Molecular Dynamics Simulations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mouna%20Baassi">Mouna Baassi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Moussaoui"> Mohamed Moussaoui</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanchaita%20Rajkhowa"> Sanchaita Rajkhowa</a>, <a href="https://publications.waset.org/abstracts/search?q=Hatim%20Soufi"> Hatim Soufi</a>, <a href="https://publications.waset.org/abstracts/search?q=Said%20Belaaouad"> Said Belaaouad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this paper is to address the challenging task of targeting Human Immunodeficiency Virus type 1 Reverse Transcriptase (HIV-1 RT) in the treatment of AIDS. Reverse Transcriptase inhibitors (RTIs) have limitations due to the development of Reverse Transcriptase mutations that lead to treatment resistance. In this study, a combination of statistical analysis and bioinformatics tools was adopted to develop a mathematical model that relates the structure of compounds to their inhibitory activities against HIV-1 Reverse Transcriptase. Our approach was based on a series of compounds recognized for their HIV-1 RT enzymatic inhibitory activities. These compounds were designed via software, with their descriptors computed using multiple tools. The most statistically promising model was chosen, and its domain of application was ascertained. Furthermore, compounds exhibiting comparable biological activity to existing drugs were identified as potential inhibitors of HIV-1 RT. The compounds underwent evaluation based on their chemical absorption, distribution, metabolism, excretion, toxicity properties, and adherence to Lipinski's rule. Molecular docking techniques were employed to examine the interaction between the Reverse Transcriptase (Wild Type and Mutant Type) and the ligands, including a known drug available in the market. Molecular dynamics simulations were also conducted to assess the stability of the RT-ligand complexes. Our results reveal some of the new compounds as promising candidates for effectively inhibiting HIV-1 Reverse Transcriptase, matching the potency of the established drug. This necessitates further experimental validation. This study, beyond its immediate results, provides a methodological foundation for future endeavors aiming to discover and design new inhibitors targeting HIV-1 Reverse Transcriptase. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=QSAR" title="QSAR">QSAR</a>, <a href="https://publications.waset.org/abstracts/search?q=ADMET%20properties" title=" ADMET properties"> ADMET properties</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20docking" title=" molecular docking"> molecular docking</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20dynamics%20simulation" title=" molecular dynamics simulation"> molecular dynamics simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=reverse%20transcriptase%20inhibitors" title=" reverse transcriptase inhibitors"> reverse transcriptase inhibitors</a>, <a href="https://publications.waset.org/abstracts/search?q=HIV%20type%201" title=" HIV type 1"> HIV type 1</a> </p> <a href="https://publications.waset.org/abstracts/167691/exploring-the-design-of-prospective-human-immunodeficiency-virus-type-1-reverse-transcriptase-inhibitors-through-a-comprehensive-approach-of-quantitative-structure-activity-relationship-study-molecular-docking-and-molecular-dynamics-simulations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167691.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">92</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4521</span> Tenofovir-Amino Acid Conjugates Act as Polymerase Substrates: Implications for Avoiding Cellular Phosphorylation in the Discovery of Nucleotide Analogs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Weijie%20Gu">Weijie Gu</a>, <a href="https://publications.waset.org/abstracts/search?q=Sergio%20Martinez"> Sergio Martinez</a>, <a href="https://publications.waset.org/abstracts/search?q=Hoai%20Nguyen"> Hoai Nguyen</a>, <a href="https://publications.waset.org/abstracts/search?q=Hongtao%20Xu"> Hongtao Xu</a>, <a href="https://publications.waset.org/abstracts/search?q=Piet%20Herdewijn"> Piet Herdewijn</a>, <a href="https://publications.waset.org/abstracts/search?q=Steven%20De%20Jonghe"> Steven De Jonghe</a>, <a href="https://publications.waset.org/abstracts/search?q=Kalyan%20Das"> Kalyan Das</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nucleotide analogs are used for treating viral infections such as HIV, hepatitis B, hepatitis C, influenza, and SARS-CoV-2. To become polymerase substrates, a nucleotide analog must be phosphorylated by cellular kinases, which are rate-limiting. The goal of this study is to develop dNTP/NTP analogs directly from nucleotides. Tenofovir (TFV) analogs were synthesized by conjugating with natural or unnatural amino acids. It demonstrates that some conjugates act as dNTP analogs, and HIV-1 reverse transcriptase (RT) catalytically incorporates the TFV part as the chain terminator. X-ray structures in complex with HIV-1 RT/dsDNA showed binding of the conjugates at the polymerase active site, however, in different modes in the presence of Mg²⁺ vs. Mn²⁺ ions. The adaptability of the compounds is seemingly essential for catalytic incorporation of TFV by RT. 4d with a carboxyl sidechain demonstrated the highest incorporation. 4e showed weak incorporation and rather behaved as a dNTP-competitive inhibitor. This result advocates the feasibility of designing NTP/dNTP analogs by chemical substitutions to nucleotide analogs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dNTP%20analogs" title="dNTP analogs">dNTP analogs</a>, <a href="https://publications.waset.org/abstracts/search?q=nucleotide%20analogs" title=" nucleotide analogs"> nucleotide analogs</a>, <a href="https://publications.waset.org/abstracts/search?q=polymerase" title=" polymerase"> polymerase</a>, <a href="https://publications.waset.org/abstracts/search?q=tenofovir" title=" tenofovir"> tenofovir</a>, <a href="https://publications.waset.org/abstracts/search?q=X-ray%20structure" title=" X-ray structure"> X-ray structure</a> </p> <a href="https://publications.waset.org/abstracts/130804/tenofovir-amino-acid-conjugates-act-as-polymerase-substrates-implications-for-avoiding-cellular-phosphorylation-in-the-discovery-of-nucleotide-analogs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/130804.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">153</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4520</span> The Influence of the Moving Speeds of DNA Droplet on Polymerase Chain Reaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jyh%20Jyh%20Chen">Jyh Jyh Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Fu%20H.%20Yang"> Fu H. Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chen%20W.%20Wang"> Chen W. Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu%20M.%20Lin"> Yu M. Lin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, a reaction chamber is reciprocated among three temperature regions by using an oscillatory thermal cycling machine. Three cartridge heaters are collocated to heat three aluminum blocks in order to achieve PCR requirements in the reaction chamber. The effects of various chamber moving speeds among different temperature regions on the chamber temperature profiles are presented. To solve the evaporation effect of the sample in the PCR experiment, the mineral oil and the cover lid are used. The influences of various extension times on DNA amplification are also demonstrated. The target fragments of the amplification are 385-bp and 420-bp. The results show when the forward speed is set at 6 mm/s and the backward speed is 2.4 mm/s, the temperature required for the experiment can be achieved. It is successful to perform the amplification of DNA fragments in our device. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=oscillatory" title="oscillatory">oscillatory</a>, <a href="https://publications.waset.org/abstracts/search?q=polymerase%20chain%20reaction" title=" polymerase chain reaction"> polymerase chain reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=reaction%20chamber" title=" reaction chamber"> reaction chamber</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20cycling%20machine" title=" thermal cycling machine"> thermal cycling machine</a> </p> <a href="https://publications.waset.org/abstracts/64588/the-influence-of-the-moving-speeds-of-dna-droplet-on-polymerase-chain-reaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/64588.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">530</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4519</span> Comparison of Sensitivity and Specificity of Pap Smear and Polymerase Chain Reaction Methods for Detection of Human Papillomavirus: A Review of Literature</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Malekian">M. Malekian</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20E.%20Heydari"> M. E. Heydari</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Irani%20Estyar"> M. Irani Estyar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Human papillomavirus (HPV) is one of the most common sexually transmitted infection, which may lead to cervical cancer as the main cause of it. With early diagnosis and treatment in health care services, cervical cancer and its complications are considered to be preventable. This study was aimed to compare the efficiency, sensitivity, and specificity of Pap smear and polymerase chain reaction (PCR) in detecting HPV. A literature search was performed in Google Scholar, PubMed and SID databases using the keywords 'human papillomavirus', 'pap smear' and 'polymerase change reaction' to identify studies comparing Pap smear and PCR methods for the detection. No restrictions were considered.10 studies were included in this review. All samples that were positive by pop smear were also positive by PCR. However, there were positive samples detected by PCR which was negative by pop smear and in all studies, many positive samples were missed by pop smear technique. Although The Pap smear had high specificity, PCR based HPV detection was more sensitive method and had the highest sensitivity. In order to promote the quality of detection and high achievement of the maximum results, PCR diagnostic methods in addition to the Pap smear are needed and Pap smear method should be combined with PCR techniques according to the high error rate of Pap smear in detection. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=human%20papillomavirus" title="human papillomavirus">human papillomavirus</a>, <a href="https://publications.waset.org/abstracts/search?q=cervical%20cancer" title=" cervical cancer"> cervical cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=pap%20smear" title=" pap smear"> pap smear</a>, <a href="https://publications.waset.org/abstracts/search?q=polymerase%20chain%20reaction" title=" polymerase chain reaction"> polymerase chain reaction</a> </p> <a href="https://publications.waset.org/abstracts/111248/comparison-of-sensitivity-and-specificity-of-pap-smear-and-polymerase-chain-reaction-methods-for-detection-of-human-papillomavirus-a-review-of-literature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/111248.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">131</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4518</span> PTFE Capillary-Based DNA Amplification within an Oscillatory Thermal Cycling Device</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jyh%20J.%20Chen">Jyh J. Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Fu%20H.%20Yang"> Fu H. Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Ming%20H.%20Liao"> Ming H. Liao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study describes a capillary-based device integrated with the heating and cooling modules for polymerase chain reaction (PCR). The device consists of the reaction polytetrafluoroethylene (PTFE) capillary, the aluminum blocks, and is equipped with two cartridge heaters, a thermoelectric (TE) cooler, a fan, and some thermocouples for temperature control. The cartridge heaters are placed into the heating blocks and maintained at two different temperatures to achieve the denaturation and the extension step. Some thermocouples inserted into the capillary are used to obtain the transient temperature profiles of the reaction sample during thermal cycles. A 483-bp DNA template is amplified successfully in the designed system and the traditional thermal cycler. This work should be interesting to persons involved in the high-temperature based reactions and genomics or cell analysis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=polymerase%20chain%20reaction" title="polymerase chain reaction">polymerase chain reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20cycles" title=" thermal cycles"> thermal cycles</a>, <a href="https://publications.waset.org/abstracts/search?q=capillary" title=" capillary"> capillary</a>, <a href="https://publications.waset.org/abstracts/search?q=TE%20cooler" title=" TE cooler"> TE cooler</a> </p> <a href="https://publications.waset.org/abstracts/7439/ptfe-capillary-based-dna-amplification-within-an-oscillatory-thermal-cycling-device" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7439.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">454</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4517</span> Characterization of Transcription Factors Involved in Early Defense Response during Interaction of Oil Palm Elaeis guineensis Jacq. with Ganoderma boninense</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sakeh%20N.%20Mohd">Sakeh N. Mohd</a>, <a href="https://publications.waset.org/abstracts/search?q=Bahari%20M.%20N.%20Abdul"> Bahari M. N. Abdul</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdullah%20S.%20N.%20Akmar"> Abdullah S. N. Akmar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Oil palm production generates high export earnings to many countries especially in Southeast Asian region. Infection by necrotrophic fungus, Ganoderma boninense on oil palm results in basal stem rot which compromises oil palm production leading to significant economic loss. There are no reliable disease treatments nor promising resistant oil palm variety has been cultivated to eradicate the disease up to date. Thus, understanding molecular mechanisms underlying early interactions of oil palm with Ganoderma boninense may be vital to promote preventive or control measure of the disease. In the present study, four months old oil palm seedlings were infected via artificial inoculation of Ganoderma boninense on rubber wood blocks. Roots of six biological replicates of treated and untreated oil palm seedlings were harvested at 0, 3, 7 and 11 days post inoculation. Next-generation sequencing was performed to generate high-throughput RNA-Seq data and identify differentially expressed genes (DEGs) during early oil palm-Ganoderma boninense interaction. Based on de novo transcriptome assembly, a total of 427,122,605 paired-end clean reads were assembled into 30,654 unigenes. DEGs analysis revealed upregulation of 173 transcription factors on Ganoderma boninense-treated oil palm seedlings. Sixty-one transcription factors were categorized as DEGs according to stringent cut-off values of genes with log2 ratio [Number of treated oil palm seedlings/ Number of untreated oil palm seedlings] ≥ |1.0| (corresponding to 2-fold or more upregulation) and P-value ≤ 0.01. Transcription factors in response to biotic stress will be screened out from abiotic stress using reverse transcriptase polymerase chain reaction. Transcription factors unique to biotic stress will be verified using real-time polymerase chain reaction. The findings will help researchers to pinpoint defense response mechanism specific against Ganoderma boninense. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ganoderma%20boninense" title="Ganoderma boninense">Ganoderma boninense</a>, <a href="https://publications.waset.org/abstracts/search?q=necrotrophic" title=" necrotrophic"> necrotrophic</a>, <a href="https://publications.waset.org/abstracts/search?q=next-generation%20sequencing" title=" next-generation sequencing"> next-generation sequencing</a>, <a href="https://publications.waset.org/abstracts/search?q=transcription%20factors" title=" transcription factors"> transcription factors</a> </p> <a href="https://publications.waset.org/abstracts/70220/characterization-of-transcription-factors-involved-in-early-defense-response-during-interaction-of-oil-palm-elaeis-guineensis-jacq-with-ganoderma-boninense" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/70220.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">266</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4516</span> Synthesis of Novel Uracil Non-nucleosides Analogues of the Reverse Transcriptase Inhibitors Emivirine and TNK-651 </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nasser%20R.%20El-Brollosy">Nasser R. El-Brollosy</a>, <a href="https://publications.waset.org/abstracts/search?q=Roberta%20Loddo"> Roberta Loddo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> 6-Benzyl-1-(ethoxymethyl)-5-isopropyluracil (Emivirine) and its corresponding 1-benzyloxymethyl analogue (TNK-651) showed high activity against HIV-1. The present study describes synthesis of novel emivirine analogues by reaction of chloromethyl ethyl ether with uracils having 5-ethyl / isopropyl and 6-(3,5-dimethoxybenzyl) substituents. A series of new TNK-651 analogues substituted at N-1 with phenoxyethoxymethyl moiety was prepared on treatment of the corresponding uracils with bis(phenoxyethoxy) methane. The newly synthesized non-nucleosides were tested for biological activity against wild type HIV-1 IIIB as well as the resistant strains N119 (Y181C), A17 (K103N + Y181C), and the triple mutant EFVR (K103R + V179D + P225H) in MT-4 cells. Some of the tested compounds showed good activities. Among them 6-(3,5-dimethylbenzyl)-5-ethyl-1-[2-(phenoxyethyl) oxymethyl]uracil which showed inhibitory potency higher than emivirine against both wild type HIV-1 and the tested mutant strains. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emivirine" title="Emivirine">Emivirine</a>, <a href="https://publications.waset.org/abstracts/search?q=HIV" title=" HIV"> HIV</a>, <a href="https://publications.waset.org/abstracts/search?q=non-nucleoside%20reverse%20transcriptase" title=" non-nucleoside reverse transcriptase"> non-nucleoside reverse transcriptase</a>, <a href="https://publications.waset.org/abstracts/search?q=uracils" title=" uracils"> uracils</a> </p> <a href="https://publications.waset.org/abstracts/27256/synthesis-of-novel-uracil-non-nucleosides-analogues-of-the-reverse-transcriptase-inhibitors-emivirine-and-tnk-651" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27256.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">265</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4515</span> Reverse Logistics, Green Supply Chain, and Carbon Trading</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Neha%20Asthana">Neha Asthana</a>, <a href="https://publications.waset.org/abstracts/search?q=Vishal%20Krishna%20Prasad"> Vishal Krishna Prasad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Reverse logistics and green supply chain form an interconnected and interwoven network of parameters that contribute to enhancement and incremental exchange in the triple bottom line in the consistently changing and fragmenting markets of the globalizing markets of today. Reverse logistics not only contributes to completing the supply chain in a comprehensive and synchronized manner but also contributes to a significant degree in optimizing green supply chains through procedures such as recycling, refurbishing etc. contributing to waste reduction. Carbon trading, owing to its limitations in the global context and being in a nascent stage seeks plethora of research to determine its full application in synergy with reverse logistics and green supply chain. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=reverse%20logistics" title="reverse logistics">reverse logistics</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20trading" title=" carbon trading"> carbon trading</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20emissions" title=" carbon emissions"> carbon emissions</a>, <a href="https://publications.waset.org/abstracts/search?q=green%20supply%20chain" title=" green supply chain"> green supply chain</a> </p> <a href="https://publications.waset.org/abstracts/11570/reverse-logistics-green-supply-chain-and-carbon-trading" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11570.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">415</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4514</span> Searching for Novel Scaffolds of Triazole Non-Nucleoside Inhibitors of HIV-1 Reverse Transcriptase</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tomasz%20Fr%C4%85czek">Tomasz Frączek</a>, <a href="https://publications.waset.org/abstracts/search?q=Agata%20Paneth"> Agata Paneth</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafa%C5%82%20Kami%C5%84ski"> Rafał Kamiński</a>, <a href="https://publications.waset.org/abstracts/search?q=Agnieszka%20Krakowiak"> Agnieszka Krakowiak</a>, <a href="https://publications.waset.org/abstracts/search?q=Piotr%20Paneth"> Piotr Paneth</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Azoles are a promising class of the new generation of HIV-1 nonnucleoside reverse transcriptase inhibitors (NNRTIs). From thousands of reported compounds, many possess the same basic structure of an aryl substituted azole ring linked by a thioglycolamide chain with another aromatic ring. To find novel extensions for this primary scaffold, we explored the 5-position substitution of triazole NNRTIs using molecular docking followed by synthesis of selected compounds. We discovered that heterocyclic substituents in 5-position of the triazole ring are detrimental to the inhibitory activity of compounds with 4-membered thioglycolamide linker. This substitution seems to be viable only for compounds with a shorter 2-membered linker such as in derivatives of 4‐benzyl‐3‐(benzyl-sulfanyl)‐5‐(thiophen‐2‐yl)‐4H‐1,2,4‐triazole reported earlier. A new scaffold of 2‐[(4‐benzyl‐5‐methyl‐4H‐1,2,4‐triazol‐3‐yl)sulfanyl]‐N‐phenylacetamide has been identified in this study. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=docking" title="docking">docking</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20modeling" title=" molecular modeling"> molecular modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=drug%20design" title=" drug design"> drug design</a>, <a href="https://publications.waset.org/abstracts/search?q=novel%20scaffolds" title=" novel scaffolds"> novel scaffolds</a> </p> <a href="https://publications.waset.org/abstracts/20177/searching-for-novel-scaffolds-of-triazole-non-nucleoside-inhibitors-of-hiv-1-reverse-transcriptase" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20177.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">541</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4513</span> Analysis of Backward Supply Chain in Beverages Industry of Pakistan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Faisal%20Mehmood">Faisal Mehmood</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this globalization era, the supply chain management has acquired strategic importance in diverse business environments. In the current highly competitive business environment, the success of any business considerably depends on the efficiency of the supply chain. Management has now realized that due to the inefficiency of any member of supply chain, the profitability of the business will be affected. This paper proposes an analysis of backward supply chain in the beverages industry of Pakistan. Although reuse of products and materials is a common phenomenon, companies have long ignored this important part of the supply chain, known as backward supply chain or reverse logistics. The beverage industry is among the pioneers of backward supply chain or reverse logistics in Pakistan. The empty glass bottles are returned back from the point of consumption to the warehouse for refilling and reusability purposes. Due to the lack of information on reverse flow of logistics and more attention on the forward distribution, beverages industry in Pakistan is facing high rate of inefficiencies and ineffectiveness. Analysis of backward or reverse logistics practiced in beverages industry is the subject of this study in which framework dictating the current needs of market will be developed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=backward%20supply%20chain" title="backward supply chain">backward supply chain</a>, <a href="https://publications.waset.org/abstracts/search?q=reverse%20logistics" title=" reverse logistics"> reverse logistics</a>, <a href="https://publications.waset.org/abstracts/search?q=refilling" title=" refilling"> refilling</a>, <a href="https://publications.waset.org/abstracts/search?q=re-usability" title=" re-usability"> re-usability</a> </p> <a href="https://publications.waset.org/abstracts/72355/analysis-of-backward-supply-chain-in-beverages-industry-of-pakistan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72355.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">348</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4512</span> Use of a New Multiplex Quantitative Polymerase Chain Reaction Based Assay for Simultaneous Detection of Neisseria Meningitidis, Escherichia Coli K1, Streptococcus agalactiae, and Streptococcus pneumoniae</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nastaran%20Hemmati">Nastaran Hemmati</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Nikkhahi"> Farhad Nikkhahi</a>, <a href="https://publications.waset.org/abstracts/search?q=Amir%20Javadi"> Amir Javadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sahar%20Eskandarion"> Sahar Eskandarion</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Mahmuod%20%20Amin%20Marashi"> Seyed Mahmuod Amin Marashi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Neisseria meningitidis, Escherichia coli K, Streptococcus agalactiae, and Streptococcus pneumoniae cause 90% of bacterial meningitis. Almost all infected people die or have irreversible neurological complications. Therefore, it is essential to have a diagnostic kit with the ability to quickly detect these fatal infections. The project involved 212 patients from whom cerebrospinal fluid samples were obtained. After total genome extraction and performing multiplex quantitative polymerase chain reaction (qPCR), the presence or absence of each infectious factor was determined by comparing with standard strains. The specificity, sensitivity, positive predictive value, and negative predictive value calculated were 100%, 92.9%, 50%, and 100%, respectively. So, due to the high specificity and sensitivity of the designed primers, they can be used instead of bacterial culture that takes at least 24 to 48 hours. The remarkable benefit of this method is associated with the speed (up to 3 hours) at which the procedure could be completed. It is also worth noting that this method can reduce the personnel unintentional errors which may occur in the laboratory. On the other hand, as this method simultaneously identifies four common factors that cause bacterial meningitis, it could be used as an auxiliary method diagnostic technique in laboratories particularly in cases of emergency medicine. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cerebrospinal%20fluid" title="cerebrospinal fluid">cerebrospinal fluid</a>, <a href="https://publications.waset.org/abstracts/search?q=meningitis" title=" meningitis"> meningitis</a>, <a href="https://publications.waset.org/abstracts/search?q=quantitative%20polymerase%20chain%20reaction" title=" quantitative polymerase chain reaction"> quantitative polymerase chain reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=simultaneous%20detection" title=" simultaneous detection"> simultaneous detection</a>, <a href="https://publications.waset.org/abstracts/search?q=diagnosis%20testing" title=" diagnosis testing"> diagnosis testing</a> </p> <a href="https://publications.waset.org/abstracts/151315/use-of-a-new-multiplex-quantitative-polymerase-chain-reaction-based-assay-for-simultaneous-detection-of-neisseria-meningitidis-escherichia-coli-k1-streptococcus-agalactiae-and-streptococcus-pneumoniae" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151315.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">116</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4511</span> Effect of Phenytoin and Cyclosporine on Connective Tissue Enzymes in Gingival Fibroblasts of Adult and Children</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=V.%20Surena">V. Surena</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Nazemisalman"> B. Nazemisalman</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Noghrehkar"> F. Noghrehkar </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Gingival overgrowth (GO) is a common side effect involving users of antiepileptic, immunosuppressive and calcium channel blocker drugs. Cyclosporine and phenytoin are amongst the most widely used drugs associated with GO. Gingival fibroblasts seem to have a significant role in the production of certain enzymes after administration of the drugs contributing to GO. Previous studies have shown a higher prevalence of GO in children and adolescents. The aim of this study was to compare normal human gingival fibroblasts with those exposed to Cyclosporine or phenytoin in measuring the production levels of certain enzymes that could have a possible role in GO. Methods: samples were obtained from the gingival biopsies of seven adult and seven children and were cultured into plates. With the growth of fibroblast cells, they were treated with or without either Cyclosporine or phenytoin. Reverse transcriptase-polymerase chain reaction (RT-PCR) was used to determine the expressed levels of R-EGF, cathepsin B,L, Lysyl oxidase, COL1, TGF β1, MMP-1,2, and TIMP1. Results: according to RT-PCR analyses, the expressed levels of R-EGF, cathepsin B, L, Lysyl oxidase, COL1, TGF β1, MMP-1, 2 and TIMP1 were affected by Cyclosporine and phenytoin. TGF-β1, TIMP, Cathepsin B and EGF showed comparable values in the adult and pediatric groups. Conclusions: Different expressed levels of enzymes after treatment of the gingival fibroblasts of adults and pediatrics with phenytoin or Cyclosporine could be the reason for the higher severity of GO in children. More studies need to be performed on the pathogenesis of GO at different age groups. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cyclosporine" title="cyclosporine">cyclosporine</a>, <a href="https://publications.waset.org/abstracts/search?q=fibroblasts" title=" fibroblasts"> fibroblasts</a>, <a href="https://publications.waset.org/abstracts/search?q=phenytoin" title=" phenytoin"> phenytoin</a>, <a href="https://publications.waset.org/abstracts/search?q=gingivae" title=" gingivae"> gingivae</a> </p> <a href="https://publications.waset.org/abstracts/45097/effect-of-phenytoin-and-cyclosporine-on-connective-tissue-enzymes-in-gingival-fibroblasts-of-adult-and-children" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45097.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">270</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4510</span> The Pathology of Bovine Rotavirus Infection in Calves That Confirmed by Enzyme Linked Immunosorbant Assay, Reverse Transcription Polymerase Chain Reaction and Real-Time RT-PCR</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shama%20Ranjan%20Barua">Shama Ranjan Barua</a>, <a href="https://publications.waset.org/abstracts/search?q=Tofazzal%20M.%20Rakib"> Tofazzal M. Rakib</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Alamgir%20Hossain"> Mohammad Alamgir Hossain</a>, <a href="https://publications.waset.org/abstracts/search?q=Tania%20Ferdushy"> Tania Ferdushy</a>, <a href="https://publications.waset.org/abstracts/search?q=Sharmin%20Chowdhury"> Sharmin Chowdhury </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Rotavirus is one of the main etiologies of neonatal diarrhea in bovine calves that causes significant economic loss in Bangladesh. The present study was carried out to investigate the pathology of neonatal enteritis in calves due to bovine rotavirus infection in south-eastern part of Bangladesh. Rotavirus was identified by using ELISA, RT-PCR (Reverse Transcription Polymerase Chain Reaction), real-time RT-PCR. We examined 12 dead calves with history of diarrhea during necropsy. Among 12 dead calves, in gross examination, 6 were found with pathological changes in intestine, 5 calves had congestion of small intestine and rest one had no distinct pathological changes. Intestinal contents and/or faecal samples of all dead calves were collected and examined to confirm the presence of bovine rotavirus A using Enzyme linked immunosorbant assay (ELISA), RT-PCR and real-time RT-PCR. Out 12 samples, 5 (42%) samples revealed presence of bovine rotavirus A in three diagnostic tests. The histopathological changes were found almost exclusively limited in the small intestine. The lesions of rotaviral enteritis ranged from slight to moderate shortening (atrophy) of villi in the jejunum and ileum with necrotic crypts. The villi were blunt and covered by immature epithelial cells. Infected cells, stained with Haematoxylin and Eosin staining method, showed characteristic syncytia and eosinophilc intracytoplasmic inclusion body. The presence of intracytoplasmic inclusion bodies in enterocytes is the indication of viral etiology. The presence of rotavirus in the affected tissues and/or lesions was confirmed by three different immunological and molecular tests. The findings of histopathological changes will be helpful in future diagnosis of rotaviral infection in dead calves. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=calves" title="calves">calves</a>, <a href="https://publications.waset.org/abstracts/search?q=diarrhea" title=" diarrhea"> diarrhea</a>, <a href="https://publications.waset.org/abstracts/search?q=pathology" title=" pathology"> pathology</a>, <a href="https://publications.waset.org/abstracts/search?q=rotavirus" title=" rotavirus"> rotavirus</a> </p> <a href="https://publications.waset.org/abstracts/77041/the-pathology-of-bovine-rotavirus-infection-in-calves-that-confirmed-by-enzyme-linked-immunosorbant-assay-reverse-transcription-polymerase-chain-reaction-and-real-time-rt-pcr" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77041.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">252</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4509</span> Detection of Respiratory Syncytial Virus (hRSV) by PCR Technique in Lower Respiratory Tract Infection (LRTI) in Babylon City</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amal%20Raqib%20Shameran">Amal Raqib Shameran</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghanim%20Aboud%20Al-Mola"> Ghanim Aboud Al-Mola </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Respiratory syncytial virus (hRSV) is the major pathogens of respiratory tract infections (RTI) among infants and children in the world. They are classified in family Paramyxoviridae and sub-family Pneumovirinae. The current work aimed to detect the role of RSV in the lower respiratory tract infection (LRTI) in Hilla, Iraq. The samples were collected from 50 children who were admitted to hospital suffering from lower respiratory tract infections (LRTI). 50 nasal and pharyngeal swabs were taken from patients at the period from January 2010 till April 2011, hospitalized in Hilla Maternity and Children Hospital. The results showed that the proportion of children infected with hRSV accounted for 24% 12/50 with lower respiratory tract infections (LRTI) when they tested by polymerase chain reaction (RT-PCR). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=respiratory%20syncytial%20virus" title="respiratory syncytial virus">respiratory syncytial virus</a>, <a href="https://publications.waset.org/abstracts/search?q=respiratory%20tract%20infections" title=" respiratory tract infections"> respiratory tract infections</a>, <a href="https://publications.waset.org/abstracts/search?q=infants" title=" infants"> infants</a>, <a href="https://publications.waset.org/abstracts/search?q=polymerase%20chain%20reaction%20%28PCR%29" title=" polymerase chain reaction (PCR)"> polymerase chain reaction (PCR)</a> </p> <a href="https://publications.waset.org/abstracts/12973/detection-of-respiratory-syncytial-virus-hrsv-by-pcr-technique-in-lower-respiratory-tract-infection-lrti-in-babylon-city" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12973.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">355</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4508</span> In vitro Anti-Gonococcal, Anti-Inflammatory and HIV-1 Reverse Transcriptase Activities of the Herbal Mixture</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=T.%20E.%20Tshikalange">T. E. Tshikalange</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20C.%20Mophuting"> B. C. Mophuting</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Traditional medicine often consists of complex ingredients prepared from a mixture of plant species. These herbal mixtures are used in the treatment of various ailments such as sexually transmitted diseases including HIV. The present study was carried out to determine the biological activities of the herbal mixture used traditionally in the treatment of sexually transmitted diseases. This herbal mixture consists of four plant species from families Asteraceae, Bignoniaceae, Fabaceae, and Myrtaceae. Five crude extracts (hexane, dichloromethane, methanol, water and boiled) of the herbal mixture were investigated for anti-gonococcal, anti-inflammatory, and reverse transcriptase activities. The anti-inflammatory activity of the plant extracts was determined by measuring the extract inhibitory effect on the pro-inflammatory enzyme lipoxygenase. The extracts were also tested for anti-HIV activity against recombinant HIV-1 enzyme using non-radioactive HIV-RT colorimetric assay. The boiled extract exhibited good anti-inflammatory activity with an IC₅₀ of 87 µg/ml compared to that of the positive control quercetin (IC₅₀= 92 µg/ml). All the other extracts showed little or no activity. Hexane extract was the only extract that showed reverse transcriptase extract inhibitory effect with an IC₅₀ of 74 µg/ml. Anti-gonococcal and cytotoxicity investigations are underway. The preliminary results support the use of herbal mixture by traditional healers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sexually%20transmitted%20diseases" title="sexually transmitted diseases">sexually transmitted diseases</a>, <a href="https://publications.waset.org/abstracts/search?q=lipoxygenase" title=" lipoxygenase"> lipoxygenase</a>, <a href="https://publications.waset.org/abstracts/search?q=anti-inflammatory" title=" anti-inflammatory"> anti-inflammatory</a>, <a href="https://publications.waset.org/abstracts/search?q=herbal%20mixture" title=" herbal mixture "> herbal mixture </a> </p> <a href="https://publications.waset.org/abstracts/73380/in-vitro-anti-gonococcal-anti-inflammatory-and-hiv-1-reverse-transcriptase-activities-of-the-herbal-mixture" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73380.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">281</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4507</span> Perfluoroheptanoic Acid Affects Xenopus Embryo Embryogenesis by Inducing the Phosphorylation of ERK and JNK</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chowon%20Kim">Chowon Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Yoo-Kyung%20Kim"> Yoo-Kyung Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Kyeong%20Yeon%20Park"> Kyeong Yeon Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyun-Shik%20Lee"> Hyun-Shik Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Perfluoroalkyl compounds (PFCs) are globally distributed synthetic compounds that are known to adversely affect human health. Developmental toxicity assessment of PFCs is important to facilitate the evaluation of their environmental impact. In the present study, we assessed the developmental toxicity and teratogenicity of PFCs with different numbers of carbon atoms on Xenopus embryogenesis. An initial frog embryo teratogenicity assay-Xenopus (FETAX) assay was performed that identified perfluorohexanoic (PFHxA) and perfluoroheptanoic (PFHpA) acids as potential teratogens and developmental toxicants. The mechanism underlying this teratogenicity was also investigated by measuring the expression of tissue-specific biomarkers such as phosphotyrosine‑binding protein, xPTB (liver); NKX2.5 (heart); and Cyl18 (intestine). Whole‑mount in situ hybridization, reverse transcriptase‑polymerase chain reaction (RT-PCR), and histologic analyses detected severe defects in the liver and heart following exposure to PFHxA or PFHpA. In addition, immunoblotting revealed that PFHpA significantly increased the phosphorylation of extracellular signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK), while PFHxA slightly increased these, as compared with the control. These results suggest that PFHxA and PFHpA are developmental toxicants and teratogens, with PFHpA producing more severe effects on liver and heart development through the induction of ERK and JNK phosphorylation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PFCs" title="PFCs">PFCs</a>, <a href="https://publications.waset.org/abstracts/search?q=ERK" title=" ERK"> ERK</a>, <a href="https://publications.waset.org/abstracts/search?q=JNK" title=" JNK"> JNK</a>, <a href="https://publications.waset.org/abstracts/search?q=xenopus" title=" xenopus"> xenopus</a> </p> <a href="https://publications.waset.org/abstracts/46964/perfluoroheptanoic-acid-affects-xenopus-embryo-embryogenesis-by-inducing-the-phosphorylation-of-erk-and-jnk" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46964.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">296</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4506</span> Prevalence of Pretreatment Drug HIV-1 Mutations in Moscow, Russia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daria%20Zabolotnaya">Daria Zabolotnaya</a>, <a href="https://publications.waset.org/abstracts/search?q=Svetlana%20Degtyareva"> Svetlana Degtyareva</a>, <a href="https://publications.waset.org/abstracts/search?q=Veronika%20Kanestri"> Veronika Kanestri</a>, <a href="https://publications.waset.org/abstracts/search?q=Danila%20Konnov"> Danila Konnov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An adequate choice of the initial antiretroviral treatment determines the treatment efficacy. In the clinical guidelines in Russia non-nucleoside reverse transcriptase inhibitors (NNRTIs) are still considered to be an option for first-line treatment while pretreatment drug resistance (PDR) testing is not routinely performed. We conducted a cohort retrospective study in HIV-positive treatment naïve patients of the H-clinic (Moscow, Russia) who performed PDR testing from July 2017 to November 2021. All the information was obtained from the medical records anonymously. We analyzed the mutations in reverse transcriptase and protease genes. RT-sequences were obtained by AmpliSens HIV-Resist-Seq kit. Drug resistance was defined using the HIVdb Program v. 8.9-1. PDR was estimated using the Stanford algorithm. Descriptive statistics were performed in Excel (Microsoft Office, 2019). A total of 261 HIV-1 infected patients were enrolled in the study including 197 (75.5%) male and 64 (24.5%) female. The mean age was 34.6±8.3 years. The median CD4 count – 521 cells/µl (IQR 367-687 cells/µl). Data on risk factors of HIV-infection were scarce. The total quantity of strains containing mutations in the reverse transcriptase gene was 75 (28.7%). From these 5 (1.9%) mutations were associated with PDR to nucleoside reverse transcriptase inhibitors (NRTIs) and 30 (11.5%) – with PDR to NNRTIs. The number of strains with mutations in protease gene was 43 (16.5%), from these only 3 (1.1%) mutations were associated with resistance to protease inhibitors. For NNRTIs the most prevalent PDR mutations were E138A, V106I. Most of the HIV variants exhibited a single PDR mutation, 2 were found in 3 samples. Most of HIV variants with PDR mutation displayed a single drug class resistance mutation. 2/37 (5.4%) strains had both NRTIs and NNRTIs mutations. There were no strains identified with PDR mutations to all three drug classes. Though earlier data demonstrated a lower level of PDR in HIV treatment naïve population in Russia and our cohort can be not fully representative as it is taken from the private clinic, it reflects the trend of increasing PDR especially to NNRTIs. Therefore, we consider either pretreatment testing or giving the priority to other drugs as first-line treatment necessary. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HIV" title="HIV">HIV</a>, <a href="https://publications.waset.org/abstracts/search?q=resistance" title=" resistance"> resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=mutations" title=" mutations"> mutations</a>, <a href="https://publications.waset.org/abstracts/search?q=treatment" title=" treatment"> treatment</a> </p> <a href="https://publications.waset.org/abstracts/152294/prevalence-of-pretreatment-drug-hiv-1-mutations-in-moscow-russia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152294.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">93</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4505</span> Polymerase Chain Reaction Analysis and Random Amplified Polymorphic DNA of Agrobacterium Tumefaciens </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abeer%20M.%20Algeblawi">Abeer M. Algeblawi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fifteen isolates of Agrobacterium tumefaciens were obtained from crown gall samples collected from six locations (Tripoli, Alzahra, Ain-Zara, Alzawia, Alazezia in Libya) from Grape (Vitis vinifera L.), Pear (Pyrus communis L.), Peach (Prunus persica L.) and Alexandria in Egypt from Guava (Psidium guajava L.) trees, Artichoke (Cynara cardunculus L.) and Sugar beet (Beta vulgaris L.). Total DNA was extracted from the eight isolates as well as the identification of six isolates used into Polymerase Chain Reaction (PCR) analysis and Random Amplified Polymorphic DNA (RAPD) technique were used. High similarity (55.5%) was observed among the eight A. tumefaciens isolates (Agro1, Agro2, Agro3, Agro4, Agro5, Agro6, Agro7, and Agro8). The PCR amplification products were resulting from the use of two specific primers (virD2A-virD2C). Analysis induction six isolates of A. tumefaciens obtained from different hosts. A visible band was specific to A. tumefaciens of (220 bp, 224 bp) and 338 bp produced with total DNA extracted from bacterial cells. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Agrobacterium%20tumefaciens" title="Agrobacterium tumefaciens">Agrobacterium tumefaciens</a>, <a href="https://publications.waset.org/abstracts/search?q=crown%20gall" title=" crown gall"> crown gall</a>, <a href="https://publications.waset.org/abstracts/search?q=identification" title=" identification"> identification</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20characterization" title=" molecular characterization"> molecular characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=PCR" title=" PCR"> PCR</a>, <a href="https://publications.waset.org/abstracts/search?q=RAPD" title=" RAPD"> RAPD</a> </p> <a href="https://publications.waset.org/abstracts/113521/polymerase-chain-reaction-analysis-and-random-amplified-polymorphic-dna-of-agrobacterium-tumefaciens" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/113521.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">144</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4504</span> The Perspective of Waste Frying Oil in São Paulo and Its Dimensions in the Reverse Logistics of the Production of Biodiesel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Max%20Filipe%20Goncalves">Max Filipe Goncalves</a>, <a href="https://publications.waset.org/abstracts/search?q=Alessandra%20Concilio"> Alessandra Concilio</a>, <a href="https://publications.waset.org/abstracts/search?q=Rodrigo%20Shimada"> Rodrigo Shimada</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The waste frying oil is highly pollutant when disposed incorrectly in the environment. Is necessary search of the Reverse Logistics to identify how can be structure to return the waste like this to productive chain and to be used in the new process. In this context, the objective of this paper is to analyze the perspective of the waste frying oil in São Paulo, and its dimensions in the production of biodiesel. Subjacent factors such as the agents, motivators and legal aspects were analyzed to demonstrate it. Then, the SWOT matrix was built with the aspects observed and the forces, weaknesses, opportunities and threats of the reverse logistic chain in São Paulo. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biodiesel" title="biodiesel">biodiesel</a>, <a href="https://publications.waset.org/abstracts/search?q=perspective" title=" perspective"> perspective</a>, <a href="https://publications.waset.org/abstracts/search?q=reverse%20logistic" title=" reverse logistic"> reverse logistic</a>, <a href="https://publications.waset.org/abstracts/search?q=WFO" title=" WFO"> WFO</a> </p> <a href="https://publications.waset.org/abstracts/59374/the-perspective-of-waste-frying-oil-in-sao-paulo-and-its-dimensions-in-the-reverse-logistics-of-the-production-of-biodiesel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59374.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">209</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4503</span> Genotyping of Rotaviruses in Pediatric Patients with Gastroenteritis by Using Real-Time Reverse Transcription Polymerase Chain Reaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Recep%20Kesli">Recep Kesli</a>, <a href="https://publications.waset.org/abstracts/search?q=Cengiz%20Demir"> Cengiz Demir</a>, <a href="https://publications.waset.org/abstracts/search?q=Riza%20Durmaz"> Riza Durmaz</a>, <a href="https://publications.waset.org/abstracts/search?q=Zekiye%20Bakkaloglu"> Zekiye Bakkaloglu</a>, <a href="https://publications.waset.org/abstracts/search?q=Aysegul%20Bukulmez"> Aysegul Bukulmez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: Acute diarrhea disease in children is a major cause of morbidity worldwide and is a leading cause of mortality, and it is the most common agent responsible for acute gastroenteritis in developing countries. With hospitalized children suffering from acute enteric disease up to 50% of the analyzed specimen were positive for rotavirus. Further molecular surveillance could provide a sound basis for improving the response to epidemic gastroenteritis and could provide data needed for the introduction of vaccination programmes in the country. The aim of this study was to investigate the prevalence of viral etiology of the gastroenteritis in children aged 0-6 years with acute gastroenteritis and to determine predominant genotypes of rotaviruses in the province of Afyonkarahisar, Turkey. Methods: An epidemiological study on rotavirus was carried out during 2016. Fecal samples obtained from the 144 rotavirus positive children with 0-6 years of ages and applied to the Pediatric Diseases Outpatient of ANS Research and Practice Hospital, Afyon Kocatepe University with the complaint of diarrhea. Bacterial agents causing gastroenteritis were excluded by using bacteriological culture methods and finally, no growth observed. Rotavirus antigen was examined by both the immunochromatographic (One Step Rotavirus and Adenovirus Combo Test, China) and ELISA (Premier Rotaclone, USA) methods in stool samples. Rotavirus RNA was detected by using one step real-time reverse transcription-polymerase chain reaction (RT-PCR). G and P genotypes were determined using RT-PCR with consensus primers of VP7 and VP4 genes, followed by semi nested type-specific multiplex PCR. Results: Of the total 144 rotavirus antigen-positive samples with RT-PCR, 4 (2,8%) were rejected, 95 (66%) were examined, and 45 (31,2%) have not been examined for PCR yet. Ninety-one (95,8%) of the 95 examined samples were found to be rotavirus positive with RT-PCR. Rotavirus subgenotyping distributions in G, P and G/P genotype groups were determined as; G1:45%, G2:27%, G3:13%, G9:13%, G4:1% and G12:1% for G genotype, and P[4]:33%, P[8]:66%, P[10]:1% for P genotype, and G1P[8]:%37, G2P[4]:%21, G3P[8]:%10, G4P[8]:%1, G9P[8]:%8, G2P[8]:%3 for G/P genotype . Not common genotype combination were %20 in G/P genotype. Conclusions: This study subscribes to the global agreement of the molecular epidemiology of rotavirus which will be useful in guiding the alternative and application of rotavirus vaccines or effective control and interception. Determining the diversity and rates of rotavirus genotypes will definitely provide guidelines for developing the most suitable vaccine. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gastroenteritis" title="gastroenteritis">gastroenteritis</a>, <a href="https://publications.waset.org/abstracts/search?q=genotyping" title=" genotyping"> genotyping</a>, <a href="https://publications.waset.org/abstracts/search?q=rotavirus" title=" rotavirus"> rotavirus</a>, <a href="https://publications.waset.org/abstracts/search?q=RT-PCR" title=" RT-PCR"> RT-PCR</a> </p> <a href="https://publications.waset.org/abstracts/71748/genotyping-of-rotaviruses-in-pediatric-patients-with-gastroenteritis-by-using-real-time-reverse-transcription-polymerase-chain-reaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71748.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">241</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4502</span> The Predictive Value of Micro Rna 451 on the Outcome of Imatinib Treatment in Chronic Myeloid Leukemia Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nehal%20Adel%20Khalil">Nehal Adel Khalil</a>, <a href="https://publications.waset.org/abstracts/search?q=Amel%20Foad%20Ketat"> Amel Foad Ketat</a>, <a href="https://publications.waset.org/abstracts/search?q=Fairouz%20Elsayed%20Mohamed%20Ali"> Fairouz Elsayed Mohamed Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Nahla%20Abdelmoneim%20Hamid"> Nahla Abdelmoneim Hamid</a>, <a href="https://publications.waset.org/abstracts/search?q=Hazem%20Farag%20Manaa"> Hazem Farag Manaa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Chronic myeloid leukemia (CML) represents 15% of adult leukemias. Imatinib Mesylate (IM) is the gold standard treatment for new cases of CML. Treatment with IM results in improvement of the majority of cases. However, about 25% of cases may develop resistance. Sensitive and specific early predictors of IM resistance in CML patients have not been established to date. Aim: To investigate the value of miR-451 in CML as an early predictor for IM resistance in Egyptian CML patients. Methods: The study employed Real time Polymerase Reaction (qPCR) technique to investigate the leucocytic expression of miR-451 in fifteen newly diagnosed CML patients (group I), fifteen IM responder CML patients (group II), fifteen IM resistant CML patients (group III) and fifteen healthy subjects of matched age and sex as a control group (group IV). The response to IM was defined as < 10% BCR-ABL transcript level after 3 months of therapy. The following parameters were assessed in subjects of all the studied groups: 1- Complete blood count (CBC). 2- Measurement of plasma level of miRNA 451 using real-time Polymerase Chain Reaction (qPCR). 3- Detection of BCR-ABL gene mutation in CML using qPCR. Results: The present study revealed that miR-451 was significantly down-regulated in leucocytes of newly diagnosed CML patients as compared to healthy subjects. IM responder CML patients showed an up-regulation of miR- 451 compared with IM resistant CML patients. Conclusion: According to the data from the present study, it can be concluded that leucocytic miR- 451 expression is a useful additional follow-up marker for the response to IM and a promising prognostic biomarker for CML. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chronic%20myeloid%20leukemia" title="chronic myeloid leukemia">chronic myeloid leukemia</a>, <a href="https://publications.waset.org/abstracts/search?q=imatinib%20resistance" title=" imatinib resistance"> imatinib resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=microRNA%20451" title=" microRNA 451"> microRNA 451</a>, <a href="https://publications.waset.org/abstracts/search?q=Polymerase%20Chain%20Reaction" title=" Polymerase Chain Reaction"> Polymerase Chain Reaction</a> </p> <a href="https://publications.waset.org/abstracts/23100/the-predictive-value-of-micro-rna-451-on-the-outcome-of-imatinib-treatment-in-chronic-myeloid-leukemia-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23100.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">293</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4501</span> Molecular Comparison of HEV Isolates from Sewage & Humans at Western India</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nidhi%20S.%20Chandra">Nidhi S. Chandra</a>, <a href="https://publications.waset.org/abstracts/search?q=Veena%20Agrawal"> Veena Agrawal</a>, <a href="https://publications.waset.org/abstracts/search?q=Debprasad%20Chattopadhyay"> Debprasad Chattopadhyay</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Hepatitis E virus (HEV) is a major cause of acute viral hepatitis in developing countries. It spreads feco orally mainly due to contamination of drinking water by sewage. There is limited data on the genotypic comparison of HEV isolates from sewage water and humans. The aim of this study was to identify genotype and conduct phylogenetic analysis of HEV isolates from sewage water and humans. Materials and Methods: 14 sewage water and 60 serum samples from acute sporadic hepatitis E cases (negative for hepatitis A, B, C) were tested for HEV-RNA by nested polymerase chain reaction (RTnPCR) using primers designed with in RdRp (RNA dependent RNA polymerase) region of open reading frame-1 (ORF-1). Sequencing was done by ABI prism 310. The sequences (343 nucleotides) were compared with each other and were aligned with previously reported HEV sequences obtained from GeneBank, using Clustal W software. A Phylogenetic tree was constructed by using PHYLIP version 3.67 software. Results: HEV-RNA was detected in 49/ 60 (81.67%) serum and 5/14 (35.71%) sewage samples. The sequences obtained from 17 serums and 2 sewage specimens belonged to genotype I with 85% similarity and clustering with previously reported human HEV sequences from India. HEV isolates from human and sewage in North West India are genetically closely related to each other. Conclusion: These finding suggest that sewage acts as reservoir of HEV. Therefore it is important that measures are taken for proper waste disposal and treatment of drinking water to prevent outbreaks and epidemics due to HEV. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hepatitis%20E%20virus" title="hepatitis E virus">hepatitis E virus</a>, <a href="https://publications.waset.org/abstracts/search?q=nested%20polymerase%20chain%20reaction" title=" nested polymerase chain reaction"> nested polymerase chain reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=open%20reading%20frame-1" title=" open reading frame-1"> open reading frame-1</a>, <a href="https://publications.waset.org/abstracts/search?q=nucleotidies" title=" nucleotidies"> nucleotidies</a> </p> <a href="https://publications.waset.org/abstracts/16409/molecular-comparison-of-hev-isolates-from-sewage-humans-at-western-india" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16409.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">377</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4500</span> A Sustainable Design Model by Integrated Evaluation of Closed-loop Design and Supply Chain Using a Mathematical Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yuan-Jye%20Tseng">Yuan-Jye Tseng</a>, <a href="https://publications.waset.org/abstracts/search?q=Yi-Shiuan%20Chen"> Yi-Shiuan Chen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper presented a sustainable design model for integrated evaluation of the design and supply chain of a product for the sustainable objectives. To design a product, there can be alternative ways to assign the detailed specifications to fulfill the same design objectives. In the design alternative cases, different material and manufacturing processes with various supply chain activities may be required for the production. Therefore, it is required to evaluate the different design cases based on the sustainable objectives. In this research, a closed-loop design model is developed by integrating the forward design model and reverse design model. From the supply chain point of view, the decisions in the forward design model are connected with the forward supply chain. The decisions in the reverse design model are connected with the reverse supply chain considering the sustainable objectives. The purpose of this research is to develop a mathematical model for analyzing the design cases by integrated evaluating the criteria in the closed-loop design and the closed-loop supply chain. The decision variables are built to represent the design cases of the forward design and reverse design. The cost parameters in a forward design include the costs of material and manufacturing processes. The cost parameters in a reverse design include the costs of recycling, disassembly, reusing, remanufacturing, and disposing. The mathematical model is formulated to minimize the total cost under the design constraints. In practical applications, the decisions of the mathematical model can be used for selecting a design case for the purpose of sustainable design of a product. An example product is demonstrated in the paper. The test result shows that the sustainable design model is useful for integrated evaluation of the design and the supply chain to achieve the sustainable objectives. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=closed-loop%20design" title="closed-loop design">closed-loop design</a>, <a href="https://publications.waset.org/abstracts/search?q=closed-loop%20supply%20chain" title=" closed-loop supply chain"> closed-loop supply chain</a>, <a href="https://publications.waset.org/abstracts/search?q=design%20evaluation" title=" design evaluation"> design evaluation</a>, <a href="https://publications.waset.org/abstracts/search?q=supply%20chain%20management" title=" supply chain management"> supply chain management</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20design%20model" title=" sustainable design model"> sustainable design model</a> </p> <a href="https://publications.waset.org/abstracts/51473/a-sustainable-design-model-by-integrated-evaluation-of-closed-loop-design-and-supply-chain-using-a-mathematical-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51473.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">425</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4499</span> Molecular Characterization of Dirofilaria repens in Dogs from Karnataka, India</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=D.%20S.%20Malatesh">D. S. Malatesh</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20J.%20Ananda"> K. J. Ananda</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Ansar%20Kamran"> C. Ansar Kamran</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Ganesh%20Udupa"> K. Ganesh Udupa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Dirofilaria repens is a mosquito-borne filarioid nematode of dogs and other carnivores and accidentally affects humans. D. repens is reported in many countries, including India. Subcutaneous dirofilariosis caused by D. repens is a zoonotic disease, widely distributed throughout Europe, Asia, and Africa, with higher prevalence reported in dogs from Sri Lanka (30-60%), Iran (61%) and Italy (21-25%). Dirofilariasis in dogs was diagnosed by detection of microfilariae in blood. Identification of different Dirofilaria species was done by using molecular methods like polymerase chain reaction (PCR). Even though many researchers reported molecular evidence of D. repens across India, to our best knowledge there is no data available on molecular diagnosis of D. repens in dogs and its zoonotic implication in Karnataka state a southern state in India. The aim of the present study was to identify the Dirofilaria species occurring in dogs from Karnataka, India. Out of 310 samples screened for the presence of microfilariae using traditional diagnostic methods, 99 (31.93%) were positive for the presence of microfilariae. Based on the morphometry, the microfilariae were identified as D. repens. For confirmation of species, the samples were subjected to PCR using pan filarial primers (DIDR-F1, DIDR-R1) for amplification of internal transcribed spacer region 2 (ITS2) of the ribosomal DNA. The PCR product of 484 base pairs on agarose gel was indicative of D. repens. Hence, a single PCR reaction using pan filarial primers can be used to differentiate filarial species found in dogs. The present study confirms that dirofilarial species occurring in dogs from Karnataka is D. repens and further sequencing studies are needed for genotypic characterization of D. repens. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dirofilaria%20repens" title="Dirofilaria repens">Dirofilaria repens</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20characterization" title=" molecular characterization"> molecular characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=polymerase%20chain%20reaction" title=" polymerase chain reaction"> polymerase chain reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=Karnataka" title=" Karnataka"> Karnataka</a>, <a href="https://publications.waset.org/abstracts/search?q=India" title=" India"> India</a> </p> <a href="https://publications.waset.org/abstracts/109804/molecular-characterization-of-dirofilaria-repens-in-dogs-from-karnataka-india" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/109804.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">142</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4498</span> Effects of Different Types of Perioperative Analgesia on Minimal Residual Disease Development After Colon Cancer Surgery</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lubomir%20Vecera">Lubomir Vecera</a>, <a href="https://publications.waset.org/abstracts/search?q=Tomas%20Gabrhelik"> Tomas Gabrhelik</a>, <a href="https://publications.waset.org/abstracts/search?q=Benjamin%20Tolmaci"> Benjamin Tolmaci</a>, <a href="https://publications.waset.org/abstracts/search?q=Josef%20Srovnal"> Josef Srovnal</a>, <a href="https://publications.waset.org/abstracts/search?q=Emil%20Berta"> Emil Berta</a>, <a href="https://publications.waset.org/abstracts/search?q=Petr%20Prasil"> Petr Prasil</a>, <a href="https://publications.waset.org/abstracts/search?q=Petr%20Stourac"> Petr Stourac</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cancer is the second leading cause of death worldwide and colon cancer is the second most common type of cancer. Currently, there are only a few studies evaluating the effect of postoperative analgesia on the prognosis of patients undergoing radical colon cancer surgery. Postoperative analgesia in patients undergoing colon cancer surgery is usually managed in two ways, either with strong opioids (morphine, piritramide) or epidural analgesia. In our prospective study, we evaluated the effect of postoperative analgesia on the presence of circulating tumor cells or minimal residual disease after colon cancer surgery. A total of 60 patients who underwent radical colon cancer surgery were enrolled in this prospective, randomized, two-center study. Patients were randomized into three groups, namely piritramide, morphine and postoperative epidural analgesia. We evaluated the presence of carcinoembryonic antigen (CEA) and cytokeratin 20 (CK-20) mRNA positive circulating tumor cells in peripheral blood before surgery, immediately after surgery, on postoperative day two and one month after surgery. The presence of circulating tumor cells was assessed by quantitative real-time reverse transcriptase-polymerase chain reaction (qRT-PCR). In the priritramide postoperative analgesia group, the presence of CEA mRNA positive cells was significantly lower on a postoperative day two compared to the other groups (p=0.04). The value of CK-20 mRNA positive cells was the same in all groups on all days. In all groups, both types of circulating tumor cells returned to normal levels one month after surgery. Demographic and baseline clinical characteristics were similar in all groups. Compared with morphine and epidural analgesia, piritramide significantly reduces the amount of CEA mRNA positive circulating tumor cells after radical colon cancer surgery. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cancer%20progression" title="cancer progression">cancer progression</a>, <a href="https://publications.waset.org/abstracts/search?q=colon%20cancer" title=" colon cancer"> colon cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=minimal%20residual%20disease" title=" minimal residual disease"> minimal residual disease</a>, <a href="https://publications.waset.org/abstracts/search?q=perioperative%20analgesia." title=" perioperative analgesia."> perioperative analgesia.</a> </p> <a href="https://publications.waset.org/abstracts/144502/effects-of-different-types-of-perioperative-analgesia-on-minimal-residual-disease-development-after-colon-cancer-surgery" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144502.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">188</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4497</span> ECOSURF EH3 - A Taq DNA Polymerase Enhancer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kimberley%20Phoena%20Fan">Kimberley Phoena Fan</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu%20Zhang"> Yu Zhang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> ECOSURF™ EH-3 Surfactant (EH3) is a nonionic surfactant and has superior wetting and excellent oil removal properties. It is biodegradable with low toxicity and meets or exceeds US EPA Design for the Environment Criteria, and is widely used as a home cleaner, commercial and industrial degreaser. We have recently found that EH3 also possesses a special function which is characterized as an enhancer to Taq DNA polymerase and ameliorator to reduce the effects of PCR inhibitors, i.e., blood, urea, Guanidinium thiocyanate, Humic acids, polyphenol, and Polysaccharides. This is a new kind of PCR enhancer that does not work on relieving secondary structures of GC-rich templates. We have compared EH3’s effects on Taq DNA Polymerase along with other well-known enhancers, such as DMSO, betaine, and BSA, using GC rich or deficient template and found that, unlike DMSO and Betaine, the EH3 boosting effect on PCR reaction is not through reducing Tm. The results show the same increase of PCR products regardless of the GC contents or secondary structures. The mechanism of EH3 enhancing PCR is through its direct interaction with or stimulation of the DNA polymerase and making the enzymes more resistant to inhibitors in the presence of EH3. This phenomenon has first been observed for EH3, a new type of PCR enzyme enhancer. Subsequent research also shows that a series of similar surfactants boost Taq DNA polymerase as well. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=EH3" title="EH3">EH3</a>, <a href="https://publications.waset.org/abstracts/search?q=DNA" title=" DNA"> DNA</a>, <a href="https://publications.waset.org/abstracts/search?q=polymerase" title=" polymerase"> polymerase</a>, <a href="https://publications.waset.org/abstracts/search?q=enhancer" title=" enhancer"> enhancer</a>, <a href="https://publications.waset.org/abstracts/search?q=raw%20biological%20samples" title=" raw biological samples"> raw biological samples</a> </p> <a href="https://publications.waset.org/abstracts/157679/ecosurf-eh3-a-taq-dna-polymerase-enhancer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157679.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">139</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4496</span> Detection of Arcobacter and Helicobacter pylori Contamination in Organic Vegetables by Cultural and Polymerase Chain Reaction (PCR) Methods</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Miguel%20Garc%C3%ADa-Ferr%C3%BAs">Miguel García-Ferrús</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Gonz%C3%A1lez"> Ana González</a>, <a href="https://publications.waset.org/abstracts/search?q=Mar%C3%ADa%20A.%20Ferr%C3%BAs"> María A. Ferrús</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The most demanded organic foods worldwide are those that are consumed fresh, such as fruits and vegetables. However, there is a knowledge gap about some aspects of organic food microbiological quality and safety. Organic fruits and vegetables are more exposed to pathogenic microorganisms due to surface contact with natural fertilizers such as animal manure, wastes and vermicompost used during farming. It has been suggested that some emergent pathogens, such as Helicobacter pylori or Arcobacter spp., could reach humans through the consumption of raw or minimally processed vegetables. Therefore, the objective of this work was to study the contamination of organic fresh green leafy vegetables by Arcobacter spp. and Helicobacter pylori. For this purpose, a total of 24 vegetable samples, 13 lettuce and 11 spinach were acquired from 10 different ecological supermarkets and greengroceries and analyzed by culture and PCR. Arcobacter spp. was detected in 5 samples (20%) by PCR, 4 spinach and one lettuce. One spinach sample was found to be also positive by culture. For H. pylori, the H. pylori VacA gene-specific band was detected in 12 vegetable samples (50%), 10 lettuces and 2 spinach. Isolation in the selective medium did not yield any positive result, possibly because of low contamination levels together with the presence of the organism in its viable but non-culturable form. Results showed significant levels of H. pylori and Arcobacter contamination in organic vegetables that are generally consumed raw, which seems to confirm that these foods can act as transmission vehicles to humans. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arcobacter%20sp." title="Arcobacter sp.">Arcobacter sp.</a>, <a href="https://publications.waset.org/abstracts/search?q=Helicobacter%20pylori" title="Helicobacter pylori">Helicobacter pylori</a>, <a href="https://publications.waset.org/abstracts/search?q=Organic%20Vegetables" title="Organic Vegetables">Organic Vegetables</a>, <a href="https://publications.waset.org/abstracts/search?q=Polymerase%20Chain%20Reaction%20%28PCR%29" title="Polymerase Chain Reaction (PCR)">Polymerase Chain Reaction (PCR)</a> </p> <a href="https://publications.waset.org/abstracts/140251/detection-of-arcobacter-and-helicobacter-pylori-contamination-in-organic-vegetables-by-cultural-and-polymerase-chain-reaction-pcr-methods" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/140251.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">164</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4495</span> Detection and Dissemination of Putative Virulence Genes from Brucella Species Isolated from Livestock in Eastern Cape Province of South Africa</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rudzani%20Manafe">Rudzani Manafe</a>, <a href="https://publications.waset.org/abstracts/search?q=Ezekiel%20Green"> Ezekiel Green </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Brucella, has many different virulence factors that act as a causative agent of brucellosis, depending on the environment and other factors, some factors may play a role more than others during infection and as a result, play a role in becoming a causative agent for pathogenesis. Brucella melitensis and Brucella abortus are considered to be pathogenic to humans. The genetic regularity of nine potential causes of virulence of two Brucella species in Eastern Cape livestock have been examined. A hundred and twenty isolates obtained from Molecular Pathogenesis and Molecular Epidemiology Research Group (MPMERG) were used for this study. All isolates were grown on Brucella agar medium. Nine primer pairs were used for the detection of virB2, virB5, vceC, btpA, btpB, prpA, betB, bpe275, and bspB virulence factors using Polymerase chain reaction (PCR). Approximately 100% was observed for genes BecC and BetB from B. arbotus. While the lowest gene observed was PrpA at 4.6% from B. arbotus. BetB was detected in 34.7%, while virB2 and prpA (0%) were not detected in B. melitensis. The results from this research suggest that most isolates of Brucella have virulence-related genes associated with disease pathogenesis. Finally, our findings showed that Brucella strains in the Eastern Cape Province are extremely virulent as virulence characteristics exist in most strains investigated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=putative%20virulence%20genes" title="putative virulence genes">putative virulence genes</a>, <a href="https://publications.waset.org/abstracts/search?q=brucella" title=" brucella"> brucella</a>, <a href="https://publications.waset.org/abstracts/search?q=polymerase%20chain%20reaction" title=" polymerase chain reaction"> polymerase chain reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=milk" title=" milk"> milk</a> </p> <a href="https://publications.waset.org/abstracts/129066/detection-and-dissemination-of-putative-virulence-genes-from-brucella-species-isolated-from-livestock-in-eastern-cape-province-of-south-africa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/129066.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">139</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=reverse%20transcriptase%20polymerase%20chain%20reaction&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=reverse%20transcriptase%20polymerase%20chain%20reaction&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=reverse%20transcriptase%20polymerase%20chain%20reaction&page=4">4</a></li> <li class="page-item"><a class="page-link" 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