Adenosine monophosphate deaminase deficiency: MedlinePlus Genetics

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<a href="https://medlineplus.gov/" itemprop="item"><span itemprop="name">Home</span></a> → <meta itemprop="position" content="1"/> </div> <div itemscope itemprop="itemListElement" itemtype="http://schema.org/ListItem"> <a href="https://medlineplus.gov/genetics/" itemprop="item"><span itemprop="name">Genetics</span></a> → <meta itemprop="position" content="2"/> </div> <div itemscope itemprop="itemListElement" itemtype="http://schema.org/ListItem"> <a href="https://medlineplus.gov/genetics/condition/" itemprop="item"><span itemprop="name">Genetic Conditions</span></a> → <meta itemprop="position" content="3"/> </div> <div> <span>Adenosine monophosphate deaminase deficiency</span> </div> </div> </div> <span class="page-url print-only">URL of this page: https://medlineplus.gov/genetics/condition/adenosine-monophosphate-deaminase-deficiency/</span> <div > <article> <div class="page-info"> <div class="page-title"> <a name="start" id="start"></a> <h1>Adenosine monophosphate deaminase deficiency</h1> </div> <div class="page-actions"></div> <noscript><span class="js-disabled-message">To use the sharing features on this page, please enable JavaScript.</span></noscript> </div> <div class="main"> <div class="mp-exp exp-full" data-bookmark="description"> <h2>Description</h2> <section><div class="mp-content"><p>Adenosine monophosphate (AMP) deaminase deficiency is a condition that can affect the muscles used for movement (skeletal muscles). In many affected individuals, AMP deaminase deficiency does not cause any symptoms. People who do experience symptoms typically have fatigue, muscle pain (myalgia), or cramps after exercise or prolonged physical activity (exercise intolerance). Following strenuous activity, they often get tired more quickly and stay tired longer than would normally be expected. In rare cases, affected individuals have more severe symptoms including severe muscle weakness, low muscle tone (hypotonia), and muscle wasting (atrophy), but it is unclear whether these symptoms are due solely to AMP deaminase deficiency or additional health conditions. Exercise intolerance associated with AMP deaminase deficiency usually becomes apparent in childhood or early adulthood.</p></div> </section> </div> <div class="mp-exp exp-full" data-bookmark="frequency"> <h2>Frequency</h2> <section><div class="mp-content"><p>AMP deaminase deficiency is one of the most common inherited muscle disorders in white populations, affecting 1 in 50 to 100 people. The prevalence is lower in African Americans, affecting an estimated 1 in 40,000 people, and the condition is even less common in the Japanese population.</p></div> </section> </div> <div class="mp-exp exp-full" data-bookmark="causes"> <h2>Causes</h2> <section><div class="mp-content"><p>AMP deaminase deficiency is caused by mutations in the <i><a data-pid="18023" href="https://medlineplus.gov/genetics/gene/ampd1/">AMPD1</a></i> gene, which provides instructions for producing an enzyme called AMP deaminase. This enzyme is found in skeletal muscles, where it plays a role in producing energy. Skeletal muscle cells need energy to function and move the body.</p><p>Mutations in the <i>AMPD1</i> gene often result in an AMP deaminase enzyme that cannot function and as a result, energy production in skeletal muscle cells is decreased. Skeletal muscles are particularly sensitive to decreases in energy during periods of exercise or increased activity when energy demands increase. The lack of AMP deaminase activity can result in fatigue, muscle weakness or pain, or other muscle problems in some people with AMP deaminase deficiency.</p><p>It is not known why some people with this condition do not experience symptoms. Researchers speculate that additional factors, both genetic and environmental, may determine whether a person develops the signs and symptoms of AMP deaminase deficiency.</p></div> </section> <section> <div class="related-genes mp-exp exp-full"> <h3>Learn more about the gene associated with Adenosine monophosphate deaminase deficiency</h3> <ul class="relatedmp"> <li><a href="https://medlineplus.gov/genetics/gene/ampd1/">AMPD1</a></li> </ul> </div> </section> </div> <div class="mp-exp exp-full" data-bookmark="inheritance"> <h2>Inheritance</h2> <section><div class="mp- mp-content"><p>This condition is inherited in an <a class="image-modal" data-alt="Both parents carry one copy of a mutated gene. In the next generation, one child is affected with the condition, two children are carriers, and one is unaffected and not a carrier." data-caption="" data-credit="U.S. National Library of Medicine" data-filepath="images/PX0000A4_PRESENTATION.jpeg" data-imgtype="genetics" data-pix="PX0000A4" data-sourceurl="" data-title="Autosomal recessive inheritance" href="https://medlineplus.gov/images/PX0000A4_PRESENTATION.jpeg" id="PX0000A4_1" title="Show image">autosomal recessive pattern<img alt="" aria-hidden="true" class="image-modal-icon" src="https://medlineplus.gov/css/img/icon_camera_small.png"/></a>, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition.</p></div> </section> </div> <div class="mp-exp exp-full" data-bookmark="synonyms"> <h2>Other Names for This Condition</h2> <section> <ul class="bulletlist"> <li>AMP deaminase deficiency</li> <li>Exercise-induced myopathy</li> <li>MAD deficiency</li> <li>MADA deficiency</li> <li>Muscle AMP deaminase deficiency</li> <li>Myoadenylate deaminase deficiency</li> </ul> </section> </div> <div class="mp-exp exp-full" data-bookmark="resources"> <h2>Additional Information & Resources</h2> <section> <div class="mp-content"> <h2>Genetic Testing Information</h2> <ul> <li><a href="https://www.ncbi.nlm.nih.gov/gtr/conditions/C3714933/" target="TheNewWin">Genetic Testing Registry: Muscle AMP deaminase deficiency</a> <span class="desc-text"><img alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc" width="25" height="16"></span></li> </ul> </div> </section> <section> <div class="mp-content"> <h2>Genetic and Rare Diseases Information Center</h2> <ul> <li><a href="https://rarediseases.info.nih.gov/diseases/547/index" target="TheNewWin">Adenosine monophosphate deaminase deficiency</a> <span class="desc-text"><img alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc" width="25" height="16"></span></li> </ul> </div> </section> <section> <div class="mp-content"> <h2>Patient Support and Advocacy Resources</h2> <ul> <li><a href="https://rarediseases.org/" target="TheNewWin">National Organization for Rare Disorders (NORD)</a></li> </ul> </div> </section> <section> <div class="mp-content"> <h2>Clinical Trials</h2> <ul> <li><a href="https://clinicaltrials.gov/search?cond=%22Adenosine monophosphate deaminase deficiency%22" target="TheNewWin">ClinicalTrials.gov</a> <span class="desc-text"><img alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc" width="25" height="16"></span></li> </ul> </div> </section> <section> <div class="mp-content"> <h2>Catalog of Genes and Diseases from OMIM</h2> <ul> <li><a href="https://omim.org/entry/615511" target="TheNewWin">MYOPATHY DUE TO MYOADENYLATE DEAMINASE DEFICIENCY; MMDD</a></li> </ul> </div> </section> <section> <div class="mp-content"> <h2>Scientific Articles on PubMed</h2> <ul> <li><a href="https://pubmed.ncbi.nlm.nih.gov/?term=%28%28AMP+deaminase+deficiency%5BTIAB%5D%29+OR+%28myoadenylate+deaminase+deficiency%5BTIAB%5D%29%29+AND+english%5Bla%5D+AND+human%5Bmh%5D+AND+%22last+3600+days%22%5Bdp%5D" target="TheNewWin">PubMed</a> <span class="desc-text"><img alt="From the National Institutes of Health" title="From the National Institutes of Health" src="https://medlineplus.gov/images/nih.png" class="imgdesc" width="25" height="16"></span></li> </ul> </div> </section> </div> <div class="mp-exp exp-full" data-bookmark="references"> <h2>References</h2> <section> <div class="mp-content"> <ul> <li>Fischer H, Esbjornsson M, Sabina RL, Stromberg A, Peyrard-Janvid M, Norman B. AMP deaminase deficiency is associated with lower sprint cycling performance in healthy subjects. J Appl Physiol (1985). 2007 Jul;103(1):315-22. doi: 10.1152/japplphysiol.00185.2007. Epub 2007 Apr 26. <a href="https://pubmed.ncbi.nlm.nih.gov/17463303" target="TheNewWin">Citation on PubMed</a></li> <li>Gross M, Rotzer E, Kolle P, Mortier W, Reichmann H, Goebel HH, Lochmuller H, Pongratz D, Mahnke-Zizelman DK, Sabina RL. A G468-T AMPD1 mutant allele contributes to the high incidence of myoadenylate deaminase deficiency in the Caucasian population. Neuromuscul Disord. 2002 Aug;12(6):558-65. doi: 10.1016/s0960-8966(02)00008-1. <a href="https://pubmed.ncbi.nlm.nih.gov/12117480" target="TheNewWin">Citation on PubMed</a></li> <li>Hanisch F, Joshi P, Zierz S. AMP deaminase deficiency in skeletal muscle is unlikely to be of clinical relevance. J Neurol. 2008 Mar;255(3):318-22. doi: 10.1007/s00415-008-0530-6. Epub 2008 Mar 14. <a href="https://pubmed.ncbi.nlm.nih.gov/18338202" target="TheNewWin">Citation on PubMed</a></li> <li>Isackson PJ, Bujnicki H, Harding CO, Vladutiu GD. Myoadenylate deaminase deficiency caused by alternative splicing due to a novel intronic mutation in the AMPD1 gene. Mol Genet Metab. 2005 Sep-Oct;86(1-2):250-6. doi: 10.1016/j.ymgme.2005.06.002. Epub 2005 Jul 22. <a href="https://pubmed.ncbi.nlm.nih.gov/16040263" target="TheNewWin">Citation on PubMed</a></li> <li>Rico-Sanz J, Rankinen T, Joanisse DR, Leon AS, Skinner JS, Wilmore JH, Rao DC, Bouchard C; HERITAGE Family study. Associations between cardiorespiratory responses to exercise and the C34T AMPD1 gene polymorphism in the HERITAGE Family Study. Physiol Genomics. 2003 Jul 7;14(2):161-6. doi: 10.1152/physiolgenomics.00165.2002. <a href="https://pubmed.ncbi.nlm.nih.gov/12783984" target="TheNewWin">Citation on PubMed</a></li> <li>Teijeira S, San Millan B, Fernandez JM, Rivas E, Vieitez I, Miranda S, Gonzalez F, Navarro C. Myoadenylate deaminase deficiency: clinico-pathological and molecular study of a series of 27 Spanish cases. Clin Neuropathol. 2009 Mar-Apr;28(2):136-42. doi: 10.5414/npp28136. <a href="https://pubmed.ncbi.nlm.nih.gov/19353846" target="TheNewWin">Citation on PubMed</a></li> </ul> </div> </section> </div> </div> <div class="side"> <aside> <section><div class="side-section"> <div class="mp-img"> <a class="image-modal" id="13869_featured" href="https://medlineplus.gov/images/PX00019C_PRESENTATION.jpeg" data-filepath="images/PX00019C_PRESENTATION.jpeg" data-title="Skeletal muscle anatomy" data-caption="" data-credit="sciencepics/Shutterstock.com" data-alt="Diagram showing structure of skeletal muscles" data-sourceurl=""> <img class="scale-with-grid" src="https://medlineplus.gov/images/PX00019C_PRESENTATION.jpeg" alt="" title="Skeletal muscle anatomy"> <span class="view-img-full-size" title="Show image">Enlarge image</span> </a> </div> </div></section> <section><div class="side-section"> </div></section> <section><div class="side-section"> <div class="section-header"> <h2>Related Health Topics</h2> </div> <div class="section-body"> <ul class="relatedmp"> <li><a href="https://medlineplus.gov/geneticdisorders.html">Genetic Disorders</a></li> <li><a href="https://medlineplus.gov/muscledisorders.html">Muscle Disorders</a></li> </ul> </div> </div></section> <section><div class="side-section"> <div class="section-header red"> <h2>MEDICAL ENCYCLOPEDIA</h2> </div> <div class="section-body" id="more_encyclopedia"> <ul class="relatedmp" style="list-style: none; padding: 0;"> <li><a href="https://medlineplus.gov/ency/article/002048.htm">Genetics</a></li> <li><a href="https://medlineplus.gov/ency/article/003178.htm">Muscle aches</a></li> <li><a href="https://medlineplus.gov/ency/article/003174.htm">Weakness</a></li> </ul> </div> </div></section> <section><div class="side-section"> <div class="section-header"> <h2>Understanding Genetics</h2> </div> <div class="section-body"> <ul class="relatedmp"> <li><a href="https://medlineplus.gov/genetics/understanding/consult/prognosis/">What is the prognosis of a genetic condition?</a></li> <li><a href="https://medlineplus.gov/genetics/understanding/mutationsanddisorders/mutationscausedisease/">How can gene variants affect health and development?</a></li> <li><a href="https://medlineplus.gov/genetics/understanding/inheritance/runsinfamily/">What does it mean if a disorder seems to run in my family?</a></li> <li><a href="https://medlineplus.gov/genetics/understanding/inheritance/inheritancepatterns/">What are the different ways a genetic condition can be inherited?</a></li> <li><a href="https://medlineplus.gov/genetics/understanding/consult/treatment/">How are genetic conditions treated or managed?</a></li> </ul> </div> </div></section> <section><div class="side-section"> <div class="section-header hide-offscreen"> <h2>Disclaimers</h2> </div> <div class="section-body no-header"> MedlinePlus links to health information from the National Institutes of Health and other federal government agencies. 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Adenosine monophosphate deaminase deficiency: MedlinePlus Genetics