573 lines
44 KiB
Text
573 lines
44 KiB
Text
<!DOCTYPE html>
|
||
<html class="no-js" lang="en" dir="ltr" prefix="content: http://purl.org/rss/1.0/modules/content/ dc: http://purl.org/dc/terms/ foaf: http://xmlns.com/foaf/0.1/ rdfs: http://www.w3.org/2000/01/rdf-schema# sioc: http://rdfs.org/sioc/ns# sioct: http://rdfs.org/sioc/types# skos: http://www.w3.org/2004/02/skos/core# xsd: http://www.w3.org/2001/XMLSchema#">
|
||
<head>
|
||
<title>Unexpected Diversity in Mitochondrial DNA | National Institutes of Health (NIH)</title>
|
||
<meta charset="utf-8" />
|
||
<script type="text/javascript">
|
||
//<![CDATA[
|
||
var usasearch_config = { siteHandle:"nih" };
|
||
|
||
var script = document.createElement("script");
|
||
script.type = "text/javascript";
|
||
script.src = "//search.usa.gov/javascripts/remote.loader.js";
|
||
document.getElementsByTagName("head")[0].appendChild(script);
|
||
|
||
//]]>
|
||
</script><link rel="shortcut icon" href="https://www.nih.gov/favicon.ico" type="image/vnd.microsoft.icon" />
|
||
<meta name="google-site-verification" content="rjIoO4vW0AYgltSYvxM1L_CzGIkq28kHf9gHIASKx8s" />
|
||
<link rel="profile" href="http://www.w3.org/1999/xhtml/vocab" />
|
||
<meta http-equiv="cleartype" content="on" />
|
||
<link rel="apple-touch-icon" href="https://www.nih.gov/sites/all/themes/nih/apple-touch-icon.png" />
|
||
<meta name="description" content="A new approach for analyzing DNA shows that each person’s mitochondrial DNA (mtDNA) is surprisingly variable in different body tissues. The finding may eventually lead to new ways of spotting and monitoring cancer." />
|
||
<meta name="keywords" content="NIH, research, study, discovery, biology, biological, medical, health, news, update, updates, highlights, advances, discovery, discoveries, research news, research update, research highlights, research advances, research discoveries, medical research news, medical research update, research column, medical information, health news, biomedical, biological science, medical findings, research findings, medical research findings, mitochondria, mitochondrial DNA, mtDNA, cancer, colorectal cancer, plasma, variability, variants, Bert Vogelstein, Nickolas Papadopoulos, Nature" />
|
||
<meta name="robots" content="follow, index" />
|
||
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||
<meta name="generator" content="Drupal 7 (http://drupal.org)" />
|
||
<link rel="canonical" href="https://www.nih.gov/news-events/nih-research-matters/unexpected-diversity-mitochondrial-dna" />
|
||
<link rel="shortlink" href="https://www.nih.gov/node/6526" />
|
||
<meta http-equiv="content-language" content="EN" />
|
||
<meta property="og:site_name" content="National Institutes of Health (NIH)" />
|
||
<meta property="og:type" content="article" />
|
||
<meta property="og:title" content="Unexpected Diversity in Mitochondrial DNA" />
|
||
<meta property="og:url" content="https://www.nih.gov/news-events/nih-research-matters/unexpected-diversity-mitochondrial-dna" />
|
||
<meta property="og:description" content="A new approach for analyzing DNA shows that each person’s mitochondrial DNA (mtDNA) is surprisingly variable in different body tissues. The finding may eventually lead to new ways of spotting and monitoring cancer." />
|
||
<meta property="og:updated_time" content="2015-07-07T08:28:21-04:00" />
|
||
<meta property="og:image" content="https://www.nih.gov/sites/default/files/news-events/research-matters/2010/20100315-dna.jpg" />
|
||
<meta name="twitter:card" content="summary" />
|
||
<meta name="twitter:title" content="Unexpected Diversity in Mitochondrial DNA" />
|
||
<meta name="twitter:url" content="https://www.nih.gov/news-events/nih-research-matters/unexpected-diversity-mitochondrial-dna" />
|
||
<meta name="twitter:description" content="A new approach for analyzing DNA shows that each person’s mitochondrial DNA (mtDNA) is surprisingly variable in different body tissues. The finding may eventually lead to new ways of spotting and" />
|
||
<meta name="twitter:image" content="https://www.nih.gov/sites/default/files/news-events/research-matters/2010/20100315-dna.jpg" />
|
||
<meta property="article:published_time" content="2015-05-18T22:01:11-04:00" />
|
||
<meta property="article:modified_time" content="2015-07-07T08:28:21-04:00" />
|
||
<meta name="owner" content="OD" />
|
||
<meta name="published_date" content="2015-05-18T22:01:11-04:00" />
|
||
<meta name="last_revision" content="2015-07-07T08:28:21-04:00" />
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_PfvPCWanzn7FjDwZqwAHhPoOxYKwkQP-RZSK1pFFG0s.css" media="all" />
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css__mIWP9gcStq74isjZVoAAsiih8VXwJoN75Nyw_BXrj0.css" media="screen" />
|
||
<style media="print">#sb-container{position:relative;}#sb-overlay{display:none;}#sb-wrapper{position:relative;top:0;left:0;}#sb-loading{display:none;}
|
||
</style>
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_jENQOQqZCRFGZK__DTefxYiXR2RUf03k1ugj3_Vg7vk.css" media="all" />
|
||
<link type="text/css" rel="stylesheet" href="//cdn.jsdelivr.net/qtip2/3.0.3/jquery.qtip.min.css" media="all" />
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_3yt-b0M1HNJsvKsXwYjh5TEtX2lJGAvJvtmVAfORYZs.css" media="all" />
|
||
<link type="text/css" rel="stylesheet" href="//fonts.googleapis.com/css?family=Droid+Sans:700,regular|Droid+Serif:italic,regular&subset=latin" media="all" />
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_E4VlyxyL3JMcT6dslWLGb0uQdoI2bh_Xj0N65V-bcWo.css" media="all" />
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_5rDMv37-JxnNA70cRr_1jlAjVs56DCb8EN4XB2QLl0c.css" media="all" />
|
||
|
||
<!--[if lte IE 8]>
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_aLJB_yHt22A_mQek4IRDNsur5tEkCpqLe72j_w6QHQ0.css" media="all" />
|
||
<![endif]-->
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_KviiBystpJcQq4MplcQZvCFxnu9V763f5bPq_AKh4xM.css" media="all" />
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_mQAv54bz2JVXcwS5QWlz0fVY9Os67zeu9bgNqtlVLPY.js"></script>
|
||
<script src="//code.jquery.com/jquery-2.2.4.min.js"></script>
|
||
<script>window.jQuery || document.write("<script src='/sites/all/modules/contrib/jquery_update/replace/jquery/2.2/jquery.min.js'>\x3C/script>")</script>
|
||
<script>jQuery.migrateMute=true;jQuery.migrateTrace=false;</script>
|
||
<script src="//code.jquery.com/jquery-migrate-1.4.1.min.js"></script>
|
||
<script>window.jQuery && window.jQuery.migrateWarnings || document.write("<script src='/sites/all/modules/contrib/jquery_update/replace/jquery-migrate/1.4.1/jquery-migrate.min.js'>\x3C/script>")</script>
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_9sGTPBGcOGZjLiSLGrYEnuUf8VdvLmL_DEZNNNbnHXk.js"></script>
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_hNnF7a_sbk6nZ2-mOamHzalYND7HBHDLRInsaU93HDk.js"></script>
|
||
<script>document.createElement( "picture" );</script>
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_gHk2gWJ_Qw_jU2qRiUmSl7d8oly1Cx7lQFrqcp3RXcI.js"></script>
|
||
<script src="//cdn.jsdelivr.net/qtip2/3.0.3/jquery.qtip.min.js"></script>
|
||
<script defer="defer" src="//script.crazyegg.com/pages/scripts/0011/2616.js"></script>
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_3s0l7MQ3oYmGkNAypyzCJq3a0wT85XX_P1SLgnph5K4.js"></script>
|
||
<script>
|
||
Shadowbox.path = "/sites/all/libraries/shadowbox/";
|
||
</script>
|
||
<script>jQuery.extend(Drupal.settings, {"basePath":"\/","pathPrefix":"","setHasJsCookie":0,"instances":"{\u0022default\u0022:{\u0022content\u0022:{\u0022text\u0022:\u0022\u0022},\u0022style\u0022:{\u0022tip\u0022:false,\u0022classes\u0022:\u0022\u0022},\u0022position\u0022:{\u0022at\u0022:\u0022bottom right\u0022,\u0022adjust\u0022:{\u0022method\u0022:\u0022\u0022},\u0022my\u0022:\u0022top left\u0022,\u0022viewport\u0022:false},\u0022show\u0022:{\u0022event\u0022:\u0022mouseenter \u0022},\u0022hide\u0022:{\u0022event\u0022:\u0022mouseleave \u0022}}}","qtipDebug":"{\u0022leaveElement\u0022:0}","shadowbox":{"animate":true,"animateFade":true,"animSequence":"wh","auto_enable_all_images":1,"auto_gallery":1,"autoplayMovies":true,"continuous":false,"counterLimit":10,"counterType":"default","displayCounter":true,"displayNav":true,"enableKeys":true,"fadeDuration":0.34999999999999998,"handleOversize":"resize","handleUnsupported":"link","initialHeight":160,"initialWidth":320,"language":"en","modal":false,"overlayColor":"#000","overlayOpacity":0.80000000000000004,"resizeDuration":0.55000000000000004,"showMovieControls":true,"slideshowDelay":0,"viewportPadding":20,"useSizzle":false},"picture":{"mappings":[["Sidebar media mappings","sidebar_media_mappings"],["Floated media mappings","floated_media_mappings"],["Not Set","not_set"]],"label":"Image size (required)"},"extlink":{"extTarget":"_blank","extClass":"ext","extLabel":"(link is external)","extImgClass":0,"extIconPlacement":0,"extSubdomains":1,"extExclude":"(.\\.nih\\.gov.)|(.\\.cancer\\.gov.)|(.\\.genome\\.gov.)|(.\\.drugabuse\\.gov.)|(locatorplus\\.gov.)|(.\\.govdelivery\\.com.)|(.\\.hatchbuck\\.com.)|(nihseniorhealth\\.gov.)|(clinicaltrials\\.gov.)|(search\\.usa\\.gov\\\/search\\?affiliate\\=hip.)|(search\\.gov\\\/search\\?affiliate\\=hip.)|(drugabuse\\.gov.)|(medlineplus\\.gov.)|(collegedrinkingprevention\\.gov.)|(smokefree\\.gov.)|(arpa-h\\.gov.)|(nih\\.sharepoint\\.com)","extInclude":"(.\\.pagefreezer\\.com.)","extCssExclude":".media, .emergency-message, .slideshow-main, .bean-home-slideshow-2l-block","extCssExplicit":"","extAlert":"_blank","extAlertText":"You are leaving the NIH website.\r\n\r\nThis external link provides additional information that is consistent with the intended purpose of this site. NIH cannot attest to the accuracy of a non-federal site.\r\n\r\nLinking to a non-federal site does not constitute an endorsement by NIH or any of its employees of the sponsors or the information and products presented on the site. You will be subject to the destination site\u2019s privacy policy when you follow the link.","mailtoClass":"mailto","mailtoLabel":"(link sends e-mail)","extUseFontAwesome":0}});</script>
|
||
|
||
<script type="application/javascript" id="uws-snippet">
|
||
// Verint Unified WebSDK Integration Snippet v2.3
|
||
//
|
||
// Instructions: please embed this snippet directly into every page of your website template.
|
||
// For optimal performance, this should be embedded directly into the template, not referenced as
|
||
// an external file.
|
||
//
|
||
// DO NOT MODIFY BELOW THIS LINE *****************************************
|
||
(function () {
|
||
var cookies = document.cookie.split("; ").reduce(function (o, i) { var p = i.split("="); o[p[0]] = p[1]; return o; }, {});
|
||
var containerValue = cookies.uws_container_override && JSON.parse(decodeURIComponent(cookies.uws_container_override));
|
||
var config = {
|
||
moduleHost: "ucm-us.verint-cdn.com",
|
||
configHost: "ucm-us.verint-cdn.com",
|
||
siteKey: "nih-gov",
|
||
container: containerValue || "live",
|
||
loadTime: Date.now()
|
||
};
|
||
var readyCallbacks = []; window.uwsReady = function (callback) { readyCallbacks.push(callback); };
|
||
var sdkPath = "//" + [config.moduleHost, "files/sites", config.siteKey, config.container, "sdk.js"].join("/");
|
||
var script = document.createElement("script"); script.src = sdkPath; script.async = true; script.type = "module";
|
||
script.addEventListener("load", function () { window.unifiedSDK.start(config, readyCallbacks); });
|
||
document.head.appendChild(script);
|
||
})();
|
||
// DO NOT MODIFY ABOVE THIS LINE *****************************************
|
||
</script>
|
||
|
||
</head>
|
||
<body class="html not-front not-logged-in page-node page-node- page-node-6526 node-type-nih-research-matters section navigation-nih-research-matters section-news-events">
|
||
<a href="#main-content" class="element-invisible element-focusable">Skip to main content</a>
|
||
<noscript aria-hidden="true"><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-5CBCNW2" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
|
||
<div class="l-page has-one-sidebar has-sidebar-second">
|
||
|
||
<div class="l-page-content">
|
||
|
||
<header class="l-header" role="banner">
|
||
<div class="l-ribbon-wrapper">
|
||
<ul class="l-ribbon">
|
||
<li><span class="ribbon-hhs"></span><a href="https://www.hhs.gov">U.S. Department of Health & Human Services</a><span class="ribbon-right"></span></li>
|
||
</ul>
|
||
</div> <div class="l-banner-wrapper">
|
||
<div class="l-banner">
|
||
<div class="l-branding">
|
||
<a class="nih-logo icon-nih-logo" href="/" title="National Institutes of Health (NIH) - Turning Discovery into Health" rel="home"><img src="/sites/all/themes/nih/images/nih-logo-color.png" width="390" height="60" alt="National Institutes of Health (NIH) - Turning Discovery into Health" /></a>
|
||
</div>
|
||
<!-- DigitalGov Search -->
|
||
<form accept-charset="UTF-8" action="https://search.nih.gov/search" id="search" class="search-form site-search" method="get">
|
||
<div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="✓" /></div>
|
||
<input id="affiliate" name="affiliate" type="hidden" value="nih" />
|
||
<label for="query" class="hide">Search the NIH Website</label>
|
||
<input autocomplete="on" class="usagov-search-autocomplete form-field form-field-site-search" id="query" name="query" type="text" placeholder="Search NIH" /><input type="submit" name="commit" value="Search" class="form-button form-button-site-search" />
|
||
</form>
|
||
<ul class="banner-utilities">
|
||
<li><a href="/virtual-tour">Virtual Tour</a></li>
|
||
<li><a href="https://ned.nih.gov/">Staff Directory</a></li>
|
||
<li><a href="https://salud.nih.gov">En Español</a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</header>
|
||
|
||
<div class="l-navigation-wrapper">
|
||
<!-- ****************** SITE MENU ****************** -->
|
||
<h2 class="element-invisible">Site Menu</h2>
|
||
<nav class="l-menu-wrapper">
|
||
<ul class="l-menu">
|
||
<!-- ********* HOME TAB (Mobile view only) ********* -->
|
||
<li class="tab-wrapper tab-wrapper-home">
|
||
<div class="tab home"><a href="/"><span>Home</span></a></div>
|
||
</li>
|
||
<!-- ********* HEALTH INFO TAB ********* -->
|
||
<li class="tab-wrapper tab-wrapper-healthinfo tab-wrapper-left">
|
||
<div class="tab"><a href="/health-information"><span>Health Information</span></a></div>
|
||
<div class="megamenu">
|
||
<div class="megamenu-col megamenu-leftcol">
|
||
<ul class="sub-menu">
|
||
<li><a href="https://www.hhs.gov/programs/social-services/health-care-facilities/index.html">Health Care Providers & Facilities</a></li>
|
||
<li><a href="/health-information/health-info-lines">Health Info Lines</a></li>
|
||
<li><a href="https://www.healthcare.gov">HealthCare.gov</a></li>
|
||
<li><a href="/research-training/science-education">Science Education Resources</a></li>
|
||
<li><a href="/health-information/nih-clinical-research-trials-you">NIH Clinical Research Trials and You</a></li>
|
||
<li><a href="/institutes-nih/nih-office-director/office-communications-public-liaison/clear-communication/talking-your-doctor">Talking to Your Doctor</a></li>
|
||
<!--<li><a href="/institutes-nih/nih-office-director/office-communications-public-liaison/clear-communication/clear-health-nih" title="">Clear Health A–Z</a></li>-->
|
||
</ul>
|
||
<p class="more-wrapper"><a class="button gold" href="/health-information" title="More Health Information">More »</a></p>
|
||
</div>
|
||
<div class="megamenu-col megamenu-rightcol">
|
||
<form id="hipsearch" accept-charset="UTF-8" action="https://search.nih.gov/search" method="get" class="search-form">
|
||
<p class="subhead"><label for="query2">Search Health Topics</label></p>
|
||
<div class="input-wrapper">
|
||
<div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="✓" /></div>
|
||
<input id="affiliate" name="affiliate" type="hidden" value="hip" />
|
||
<input type="hidden" name="dc" value="940" />
|
||
<input autocomplete="on" maxlength="50" class="usagov-search-autocomplete form-field form-field-search" id="query2" name="query" type="text" />
|
||
<input name="commit" type="submit" value="Go" id="searchbutton" class="form-button" />
|
||
</div>
|
||
</form>
|
||
<p class="subhead">Quick Links</p>
|
||
<ul class="sub-menu">
|
||
<li><a class="minibadge minibadge-medlineplus" href="https://medlineplus.gov/"><span class="minibadge-text">MedlinePlus Health Info</span></a></li>
|
||
<li><a class="minibadge minibadge-newsinhealth" href="https://newsinhealth.nih.gov/"><span class="minibadge-text">NIH News in Health</span></a></li>
|
||
<li><a class="minibadge minibadge-wellnesstoolkits" href="/health-information/your-healthiest-self-wellness-toolkits"><span class="minibadge-text">Wellness Toolkits</span></a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<!-- ********* GRANTS TAB ********* -->
|
||
<li class="tab-wrapper tab-wrapper-grants tab-wrapper-left">
|
||
<div class="tab"><a href="/grants-funding"><span>Grants & Funding</span></a></div>
|
||
<div class="megamenu">
|
||
<div class="megamenu-col megamenu-leftcol">
|
||
<ul>
|
||
<li><a href="https://grants.nih.gov">Grants Home Page</a></li>
|
||
<li><a href="https://grants.nih.gov/funding/index.htm">Find Funding</a></li>
|
||
<li><a href="https://grants.nih.gov/grants/how-to-apply-application-guide/due-dates-and-submission-policies/due-dates.htm">Due Dates</a></li>
|
||
<li><a href="https://grants.nih.gov/grants/how-to-apply-application-guide.html">How to Apply</a></li>
|
||
<li><a href="https://grants.nih.gov/grants/about_grants.htm">About Grants</a></li>
|
||
<li><a href="https://grants.nih.gov/policy/index.htm">Policy & Compliance</a></li>
|
||
<li><a href="https://nexus.od.nih.gov/all/">Grants News/Blog</a></li>
|
||
<li><a href="https://grants.nih.gov/funding/contracts.htm">Contracts</a></li>
|
||
<li><a href="https://www.lrp.nih.gov/">Loan Repayment</a></li>
|
||
</ul>
|
||
<p class="more-wrapper"><a class="button gold" href="/grants-funding" title="More Grants & Funding Information">More »</a></p>
|
||
</div>
|
||
<div class="megamenu-col megamenu-rightcol">
|
||
<p class="subhead">Quick Links</p>
|
||
<ul>
|
||
<li><a class="minibadge minibadge-report" href="https://report.nih.gov/"><span class="minibadge-text">RePORT</span></a></li>
|
||
<li><a class="minibadge minibadge-era" href="https://commons.era.nih.gov/commons/"><span class="minibadge-text">eRA Commons</span></a></li>
|
||
<li><a class="minibadge minibadge-commonfund" href="https://commonfund.nih.gov/"><span class="minibadge-text">NIH Common Fund</span></a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<!-- ********* NEWS TAB ********* -->
|
||
<li class="tab-wrapper tab-wrapper-news tab-wrapper-left">
|
||
<div class="tab"><a href="/news-events"><span>News & Events</span></a></div>
|
||
<div class="megamenu">
|
||
<div class="megamenu-col megamenu-leftcol">
|
||
<ul>
|
||
<li><a href="/news-events/news-releases">News Releases</a></li>
|
||
<li><a href="/news-events/digital-media-kits">Digital Media Kits</a></li>
|
||
<li><a href="/news-events/media-resources">Media Resources</a></li>
|
||
<li><a href="/news-events/media-contacts">Media Contacts</a></li>
|
||
<li><a href="/news-events/images-b-roll">Images and B-roll</a></li>
|
||
<li><a href="/news-events/events">Events</a></li>
|
||
<li><a href="/news-events/social-media-outreach">Social Media</a></li>
|
||
</ul>
|
||
<p class="more-wrapper"><a class="button gold" href="/news-events" title="More News & Events">More »</a></p>
|
||
</div>
|
||
<div class="megamenu-col megamenu-rightcol">
|
||
<p class="subhead">Quick Links</p>
|
||
<ul>
|
||
<li><a class="minibadge minibadge-newsinhealth" href="https://newsinhealth.nih.gov/"><span class="minibadge-text">NIH News in Health</span></a></li>
|
||
<li><a class="minibadge minibadge-researchmatters" href="/news-events/nih-research-matters"><span class="minibadge-text">NIH Research Matters</span></a></li>
|
||
<li><a class="minibadge minibadge-nihrecord" href="https://nihrecord.nih.gov/"><span class="minibadge-text">NIH Record</span></a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<!-- ********* RESEARCH TAB ********* -->
|
||
<li class="tab-wrapper tab-wrapper-research tab-wrapper-right">
|
||
<div class="tab"><a href="/research-training"><span>Research & Training</span></a></div>
|
||
<div class="megamenu">
|
||
<div class="megamenu-col megamenu-leftcol">
|
||
<ul>
|
||
<li><a href="/research-training/medical-research-initiatives">Medical Research Initiatives</a></li>
|
||
<li><a href="/research-training/science-highlights">Science Highlights</a></li>
|
||
<li><a href="/research-training/science-education">Science Education</a></li>
|
||
<li><a href="/research-training/research-nih-labs-clinics">Research in NIH Labs & Clinics</a></li>
|
||
<li><a href="/research-training/training-opportunities">Training Opportunities</a></li>
|
||
<li><a href="/research-training/library-resources">Library Resources</a></li>
|
||
<li><a href="/research-training/research-resources">Research Resources</a></li>
|
||
<li><a href="/research-training/clinical-research-resources">Clinical Research Resources</a></li>
|
||
<li><a href="/research-training/safety-regulation-guidance">Safety, Regulation and Guidance</a></li>
|
||
</ul>
|
||
<p class="more-wrapper"><a class="button gold" href="/research-training" title="More Research & Training">More »</a></p>
|
||
</div>
|
||
<div class="megamenu-col megamenu-rightcol">
|
||
<p class="subhead">Quick Links</p>
|
||
<ul>
|
||
<li><a class="minibadge minibadge-pubmed" href="https://pubmed.ncbi.nlm.nih.gov"><span class="minibadge-text">PubMed</span></a></li>
|
||
<li><a class="minibadge minibadge-stemcell" href="https://stemcells.nih.gov"><span class="minibadge-text">Stem Cell Information</span></a></li>
|
||
<li><a class="minibadge minibadge-oppnet" href="https://oppnet.nih.gov"><span class="minibadge-text">OppNet</span></a></li>
|
||
<li><a class="minibadge minibadge-nidb" href="https://intramural.nih.gov"><span class="minibadge-text">NIDB</span></a></li>
|
||
<li><a class="minibadge minibadge-nihblueprint" href="https://neuroscienceblueprint.nih.gov"><span class="minibadge-text">NIH Blueprint for Neuroscience Research</span></a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<!-- ********* INSTITUTES TAB ********* -->
|
||
<li class="tab-wrapper tab-wrapper-institutes tab-wrapper-right">
|
||
<div class="tab"><a href="/institutes-nih"><span>Institutes at NIH</span></a></div>
|
||
<div class="megamenu">
|
||
<div class="megamenu-col megamenu-leftcol">
|
||
<ul>
|
||
<li><a href="/institutes-nih/list-institutes-centers">List of Institutes and Centers</a></li>
|
||
<li><a href="/institutes-nih/nih-office-director">NIH Office of the Director</a></li>
|
||
<li><a href="/institutes-nih/directors-nih-institutes-centers">Directors of NIH Institutes and Centers</a></li>
|
||
<li><a href="/institutes-nih/nih-institute-center-contact-information">NIH Institute and Center Contact Information</a></li>
|
||
</ul>
|
||
<p class="more-wrapper"><a class="button gold" href="/institutes-nih" title="More About the Institutes at NIH">More »</a></p>
|
||
</div>
|
||
<div class="megamenu-col megamenu-rightcol">
|
||
<p class="subhead">Quick Links</p>
|
||
<ul class="ic-acronymn-list">
|
||
<li><a href="https://www.cancer.gov" title="National Cancer Institute">NCI</a></li>
|
||
<li><a href="https://nei.nih.gov" title="National Eye Institute">NEI</a></li>
|
||
<li><a href="https://www.nhlbi.nih.gov" title="National Heart, Lung, and Blood Institute">NHLBI</a></li>
|
||
<li><a href="https://www.genome.gov" title="National Human Genome Research Institute">NHGRI</a></li>
|
||
<li><a href="https://www.nia.nih.gov" title="National Institute on Aging">NIA</a></li>
|
||
<li><a href="https://www.niaaa.nih.gov" title="National Institute on Alcohol Abuse and Alcoholism">NIAAA</a></li>
|
||
<li><a href="https://www.niaid.nih.gov" title="National Institute of Allergy and Infectious Diseases">NIAID</a></li>
|
||
<li><a href="https://www.niams.nih.gov" title="National Institute of Arthritis and Musculoskeletal and Skin Diseases">NIAMS</a></li>
|
||
<li><a href="https://www.nibib.nih.gov" title="National Institute of Biomedical Imaging and Bioengineering">NIBIB</a></li>
|
||
<li><a href="https://www.nichd.nih.gov" title="Eunice Kennedy Shriver National Institute of Child Health and Human Development">NICHD</a></li>
|
||
<li><a href="https://www.nidcd.nih.gov" title="National Institute on Deafness and Other Communication Disorders">NIDCD</a></li>
|
||
<li><a href="https://www.nidcr.nih.gov" title="National Institute of Dental and Craniofacial Research">NIDCR</a></li>
|
||
<li><a href="https://www.niddk.nih.gov" title="National Institute of Diabetes and Digestive and Kidney Diseases">NIDDK</a></li>
|
||
<li><a href="https://nida.nih.gov" title="National Institute on Drug Abuse">NIDA</a></li>
|
||
<li><a href="https://www.niehs.nih.gov" title="National Institute of Environmental Health Sciences">NIEHS</a></li>
|
||
<li><a href="https://www.nigms.nih.gov" title="National Institute of General Medical Sciences">NIGMS</a></li>
|
||
<li><a href="https://www.nimh.nih.gov" title="National Institute of Mental Health">NIMH</a></li>
|
||
<li><a href="https://www.nimhd.nih.gov" title="National Institute on Minority Health and Health Disparities">NIMHD</a></li>
|
||
<li><a href="https://www.ninds.nih.gov" title="National Institute of Neurological Disorders and Stroke">NINDS</a></li>
|
||
<li><a href="https://www.ninr.nih.gov" title="National Institute of Nursing Research">NINR</a></li>
|
||
<li><a href="https://www.nlm.nih.gov" title="National Library of Medicine">NLM</a></li>
|
||
<li><a href="https://www.cc.nih.gov" title="NIH Clinical Center">CC</a></li>
|
||
<li><a href="https://www.cit.nih.gov" title="Center for Information Technology">CIT</a></li>
|
||
<li><a href="https://www.csr.nih.gov" title="Center for Scientific Review">CSR</a></li>
|
||
<li><a href="https://www.fic.nih.gov" title="Fogarty International Center">FIC</a></li>
|
||
<li><a href="https://ncats.nih.gov" title="National Center for Advancing Translational Sciences">NCATS</a></li>
|
||
<li><a href="https://nccih.nih.gov" title="National Center for Complementary and Integrative Health">NCCIH</a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<!-- ********* ABOUT TAB ********* -->
|
||
<li class="tab-wrapper tab-wrapper-about tab-wrapper-right">
|
||
<div class="tab"><a href="/about-nih"><span>About NIH</span></a></div>
|
||
<div class="megamenu">
|
||
<div class="megamenu-col megamenu-leftcol">
|
||
<ul>
|
||
<li><a href="/about-nih/who-we-are">Who We Are</a></li>
|
||
<li><a href="/about-nih/what-we-do">What We Do</a></li>
|
||
<li><a href="https://hr.nih.gov/jobs">Jobs at NIH</a></li>
|
||
<li><a href="/about-nih/visitor-information">Visitor Information</a></li>
|
||
<li><a href="/about-nih/frequently-asked-questions">Frequently Asked Questions</a></li>
|
||
<li><a href="/about-nih/contact-us">Contact Us</a></li>
|
||
<!--<li><a href="/about-nih/explore-nih">Explore NIH</a></li>-->
|
||
</ul>
|
||
<p class="more-wrapper"><a class="button gold" href="/about-nih" title="More About NIH">More »</a></p>
|
||
</div>
|
||
<div class="megamenu-col megamenu-rightcol">
|
||
<p class="subhead">Quick Links</p>
|
||
<ul>
|
||
<li><a href="/about-nih/who-we-are/nih-director">The NIH Director</a></li>
|
||
<li><a href="/virtual-tour">Take the Virtual Tour</a></li>
|
||
<li><a href="/about-nih/what-we-do/nih-turning-discovery-into-health">NIH…Turning Discovery Into Health<sup>®</sup></a></li>
|
||
<li><a href="/about-nih/what-we-do/impact-nih-research">Impact of NIH Research</a></li>
|
||
<li><a href="/about-nih/what-we-do/science-health-public-trust">Science, Health, and Public Trust</a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
</ul>
|
||
<div class="tab-bkgnd"></div><!-- For pixel rounding issue -->
|
||
</nav>
|
||
<!-- ****************** END SITE MENU ****************** -->
|
||
</div>
|
||
|
||
<div class="l-main-wrapper">
|
||
<div class="l-main" id="page-content">
|
||
<h2 class="element-invisible">You are here</h2><div class="breadcrumb"><a href="/">Home</a> » <a href="/news-events">News & Events</a> » <a href="/news-events/nih-research-matters">NIH Research Matters</a></div> <div class="l-region l-region--section-header">
|
||
<div id="block-block-101" class="block block--block sectionheader block--block-101" id="block-block-101" class="block block--block sectionheader block--block-101">
|
||
|
||
|
||
<div class="content" class="block__content">
|
||
<h2><a href="/news-events/nih-research-matters">NIH Research Matters</a></h2> </div>
|
||
</div>
|
||
</div>
|
||
<div class="l-content-wrapper">
|
||
<div class="l-content" role="main">
|
||
<a id="main-content"></a>
|
||
<div about="/news-events/nih-research-matters/unexpected-diversity-mitochondrial-dna" typeof="sioc:Item foaf:Document" class="ds-1col node node--nih-research-matters view-mode-full node--full node--nih-research-matters--full clearfix">
|
||
|
||
|
||
<p class="publishdate"><span property="dc:date" datatype="xsd:dateTime" content="2010-03-15T00:00:00-04:00" class="date-display-single">March 15, 2010</span></p><div class='syndicate'><h1>Unexpected Diversity in Mitochondrial DNA</h1><div class="media-float-right"><div class="ds-1col file file-image file-image-jpeg view-mode-floated_media clearfix">
|
||
|
||
|
||
<picture title="Scanning electron micrograph of pill-shaped organelle filled with folded membranes">
|
||
<!--[if IE 9]><video style="display: none;"><![endif]-->
|
||
<source srcset="https://www.nih.gov/sites/default/files/styles/floated_media_breakpoint-large/public/news-events/research-matters/2010/20100315-dna.jpg?itok=ryEpB-uE&timestamp=1433791896 1x" media="screen and (min-width: 960px)" />
|
||
<source srcset="https://www.nih.gov/sites/default/files/styles/floated_media_breakpoint-medium/public/news-events/research-matters/2010/20100315-dna.jpg?itok=hQPzlXA8&timestamp=1433791896 1x" media="screen and (min-width: 800px)" />
|
||
<source srcset="https://www.nih.gov/sites/default/files/styles/floated_media_breakpoint-medium-small/public/news-events/research-matters/2010/20100315-dna.jpg?itok=zA7qdTpn&timestamp=1433791896 1x" media="screen and (min-width: 600px)" />
|
||
<source srcset="https://www.nih.gov/sites/default/files/styles/floated_media_breakpoint-small/public/news-events/research-matters/2010/20100315-dna.jpg?itok=bE216ZAy&timestamp=1433791896 1x" media="screen and (min-width: 480px)" />
|
||
<source srcset="https://www.nih.gov/sites/default/files/styles/floated_media_breakpoint-tiny/public/news-events/research-matters/2010/20100315-dna.jpg?itok=L-R-KdjH&timestamp=1433791896 1x" media="screen and (min-width: 0)" />
|
||
<!--[if IE 9]></video><![endif]-->
|
||
<img src="https://www.nih.gov/sites/default/files/styles/floated_media_breakpoint-medium/public/news-events/research-matters/2010/20100315-dna.jpg?itok=hQPzlXA8&timestamp=1433791896" alt="Scanning electron micrograph of pill-shaped organelle filled with folded membranes" title="Scanning electron micrograph of pill-shaped organelle filled with folded membranes" />
|
||
</picture><span class="caption">A mitochondrion fractured to reveal its internal structure. </span><span class="credit">Dr. David Furness, all rights reserved by Wellcome Images.</span></div>
|
||
|
||
</div><p>A new approach for analyzing DNA shows that each person's mitochondrial DNA (mtDNA) is surprisingly variable in different body tissues. The finding may eventually prove useful for spotting and monitoring cancer, as it leads to telltale mtDNA variations that can be detected in the bloodstream.</p>
|
||
|
||
<p>Mitochondria are tiny capsule-shaped structures that produce energy for the cell. Each cell has dozens to hundreds of mitochondria, and each mitochondrion contains several copies of circular strands of DNA. This DNA is distinct from the main genome in the cell's nucleus, which is inherited from both the mother and father. Mitochondria, in contrast, are passed directly from a mother's egg cell to her offspring. Until recently, most scientists believed that nearly all of a person's cells contain identical copies of mtDNA inherited from the mother.</p>
|
||
|
||
<p>A research team led by Drs. Nickolas Papadopoulos and Bert Vogelstein of Johns Hopkins University used new, highly sensitive DNA sequencing technologies to take a closer look at mtDNA variability in different tissues within several individuals. The technique can detect relatively rare single-letter variants in stretches of DNA—even those found in as few as 1 in 10,000 mitochondrial genomes. The research was supported by NIH’s National Cancer Institute (NCI) and the Howard Hughes Medical Institute.</p>
|
||
|
||
<p>In the March 4, 2010, advance online edition of <em>Nature</em>, the researchers described a series of mtDNA analyses, including a detailed evaluation of 10 different tissues taken from a single person. Although most analyzed mtDNA was identical, the researchers detected at least 1 variant form of mtDNA in each tissue, and 4 tissues harbored at least 4 variants. The proportion of variant mtDNA in tissues differed widely. In some cases, certain tissues—like kidney and liver—shared a variant that wasn't found in other tissues.</p>
|
||
|
||
<p>To get a better sense of how these variants might arise, the scientists studied sets of parents and their offspring. As expected, mtDNA variants were not inherited from fathers. A small number of variant mtDNAs did seem to pass directly from mother to offspring. But inheritance is unlikely to account for the wide variability seen in different tissues. The researchers believe that most variations in mtDNA must arise during embryonic and fetal development. That would explain why some variants were found only in certain tissues.</p>
|
||
|
||
<p>Analysis of both healthy and cancerous tissues also identified several cancer-specific mtDNA mutations. The mutations were detectable in the blood plasma of 2 colorectal cancer patients, and the levels dropped after the tumors were surgically removed. Cancer-specific mutations in nuclear DNA were also found in the bloodstream, but the concentration of mutant mtDNA was significantly greater and so could be identified in much smaller blood samples. With further study, mtDNA may hold promise for detection and post-treatment monitoring of cancer. It's also less costly than nuclear DNA analysis.</p>
|
||
|
||
<p>"We were surprised to find how much the DNA of mitochondria varies within each individual," says Papadopoulos. "The bottom line is there is no single mitochondrial genome in humans."</p>
|
||
|
||
<p>—by Vicki Contie</p>
|
||
</div><h2 class="label-above">Related Links</h2><ul class="spaced print-urls"><li><a href="http://ghr.nlm.nih.gov/chromosome=MT" target="_top">Mitochondrial DNA</a></li><li><a href="http://www.genome.gov/glossary/index.cfm?id=128" target="_top">Mitochondria</a></li></ul>
|
||
|
||
</div>
|
||
|
||
<div class="lastupdated">
|
||
</div> </div>
|
||
<aside class="l-region l-region--sidebar-second masonry-container">
|
||
<div id="block-ds-extras-in-this-edition" class="block block--ds-extras box block--ds-extras-in-this-edition" id="block-ds-extras-in-this-edition" class="block block--ds-extras box block--ds-extras-in-this-edition">
|
||
|
||
<h3 class="block__title">In this Edition</h3>
|
||
|
||
<div class="content" class="block__content">
|
||
<div class="view view-nih-rm-in-this-edition view-id-nih_rm_in_this_edition view-display-id-default view-dom-id-0ec6d6ac1040b30f1bf11a36c6f481cc">
|
||
|
||
|
||
|
||
<div class="view-content">
|
||
<div>
|
||
|
||
<p><a href="/news-events/nih-research-matters/gut-bacteria-may-influence-metabolic-syndrome">Gut Bacteria May Influence Metabolic Syndrome</a></p> </div>
|
||
<div>
|
||
|
||
<p><a href="/news-events/nih-research-matters/gene-linked-food-allergy-related-disorder">Gene Linked to Food Allergy-Related Disorder</a></p> </div>
|
||
<div>
|
||
|
||
<p><a href="/news-events/nih-research-matters/unexpected-diversity-mitochondrial-dna" class="active">Unexpected Diversity in Mitochondrial DNA</a></p> </div>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</div> </div>
|
||
</div>
|
||
<div id="block-bean-research-matters-search" class="block block--bean box block--bean-research-matters-search" id="block-bean-research-matters-search" class="block block--bean box block--bean-research-matters-search">
|
||
|
||
<h3 class="block__title">Search NIH Research Matters</h3>
|
||
|
||
<div class="content" class="block__content">
|
||
<div about="/block/research-matters---search" class="ds-1col entity entity-bean bean-research-matters-block view-mode-default clearfix">
|
||
|
||
|
||
|
||
<!-- DigitalGov Search -->
|
||
<form id="directorsearch" accept-charset="UTF-8" action="https://search.nih.gov/search/docs" method="get" class="search-form">
|
||
<div class="input-wrapper">
|
||
<div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="✓" /></div>
|
||
<input id="affiliate" name="affiliate" type="hidden" value="nih" />
|
||
<input type="hidden" name="dc" value="678" />
|
||
<label for="query2" class="hide">Search NIH Research Matters' stories</label>
|
||
<input autocomplete="off" class="usagov-search-autocomplete form-field form-field-search" id="query2" name="query" type="text" />
|
||
<input name="commit" type="submit" value="Go" id="searchbutton" class="form-button" />
|
||
</div>
|
||
</form>
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
<div id="block-bean-research-matters-contact-us" class="block block--bean box block--bean-research-matters-contact-us" id="block-bean-research-matters-contact-us" class="block block--bean box block--bean-research-matters-contact-us">
|
||
|
||
<h3 class="block__title">Connect with Us</h3>
|
||
|
||
<div class="content" class="block__content">
|
||
<div about="/block/research-matters---contact-us" class="ds-1col entity entity-bean bean-research-matters-block view-mode-default clearfix">
|
||
|
||
|
||
<p><a class="button-link" href="https://service.govdelivery.com/accounts/USNIH/subscriber/new?topic_id=USNIH_48" onclick="window.open(this.href,'popup','width=725,height=500,left=25,top=25,location=no,resizable=yes,scrollbars=yes,status=yes');return false;">Subscribe to get NIH Research Matters by email</a></p>
|
||
|
||
<ul class="icon-list">
|
||
<li><a class="icon-link rss-monochrome" href="/nih-research-matters/feed.xml"><span class="icon"></span>RSS feed</a></li>
|
||
<li><a class="icon-link facebook-monochrome" href="https://www.facebook.com/ResearchMatters"><span class="icon"></span>Facebook</a></li>
|
||
<li><a class="icon-link email-monochrome" href="mailto:nihresearchmatters@od.nih.gov"><span class="icon"></span>Email us</a></li>
|
||
</ul>
|
||
|
||
<p><strong>Mailing Address:</strong><br />
|
||
NIH Research Matters<br />
|
||
Bldg. 31, Rm. 5B52, MSC 2094<br />
|
||
Bethesda, MD 20892-2094</p></div>
|
||
|
||
</div>
|
||
</div>
|
||
<div id="block-bean-research-matters-popular-stori" class="block block--bean box block--bean-research-matters-popular-stori" id="block-bean-research-matters-popular-stori" class="block block--bean box block--bean-research-matters-popular-stori">
|
||
|
||
<h3 class="block__title">Popular Stories</h3>
|
||
|
||
<div class="content" class="block__content">
|
||
<div about="/block/research-matters---popular-stori" class="ds-1col entity entity-bean bean-research-matters-block view-mode-default clearfix">
|
||
|
||
|
||
<p><a href="https://www.nih.gov/news-events/nih-research-matters/research-context-can-we-slow-aging">Research in Context: Can we slow aging?</a></p>
|
||
|
||
<p><a href="https://www.nih.gov/news-events/nih-research-matters/brain-changes-observed-during-pregnancy">Brain changes observed during pregnancy</a></p>
|
||
|
||
<p><a href="https://www.nih.gov/news-events/nih-research-matters/research-context-detecting-cancer">Research in Context: Detecting cancer</a></p>
|
||
|
||
<p><a href="https://www.nih.gov/news-events/nih-research-matters/risk-future-burden-dementia-united-states">Risk and future burden of dementia in the United States </a></p>
|
||
|
||
<p><a href="https://www.nih.gov/news-events/nih-research-matters/complete-wiring-map-adult-fruit-fly-brain">Complete wiring map of an adult fruit fly brain</a></p>
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
<div id="block-bean-research-matters-about" class="block block--bean box block--bean-research-matters-about" id="block-bean-research-matters-about" class="block block--bean box block--bean-research-matters-about">
|
||
|
||
<h3 class="block__title">About NIH Research Matters</h3>
|
||
|
||
<div class="content" class="block__content">
|
||
<div about="/block/research-matters---about" class="ds-1col entity entity-bean bean-research-matters-block view-mode-default clearfix">
|
||
|
||
|
||
<p><strong>Editor:</strong> Harrison Wein, Ph.D.</p>
|
||
|
||
<p><strong>Assistant Editors:</strong> Vicki Contie and Brian Doctrow, Ph.D.</p>
|
||
|
||
<p><strong><em>NIH Research Matters </em></strong>is a weekly update of NIH research highlights reviewed by NIH’s experts. It's published by the <a href="/institutes-nih/nih-office-director/office-communications-public-liaison">Office of Communications and Public Liaison</a> in the <a href="/institutes-nih/nih-office-director">NIH Office of the Director</a>.</p>
|
||
|
||
<p>ISSN 2375-9593</p>
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
</aside>
|
||
</div>
|
||
<div class="l-connect-wrapper">
|
||
<div class="l-connect">
|
||
<h2 class="element-invisible">Connect with Us</h2>
|
||
<ul>
|
||
<li><a class="contactus-monochrome" href="/about-nih/contact-us"><span class="icon"></span>Contact Us</a></li>
|
||
<li><a class="twitter-monochrome" href="https://twitter.com/NIH"><span class="icon"></span>X</a></li>
|
||
<li><a class="facebook-monochrome" href="https://www.facebook.com/nih.gov"><span class="icon"></span>Facebook</a></li>
|
||
<li><a class="instagram-monochrome" href="https://www.instagram.com/nihgov/"><span class="icon"></span>Instagram</a></li>
|
||
<li><a class="youtube-monochrome" href="https://www.youtube.com/user/nihod"><span class="icon"></span>YouTube</a></li>
|
||
<li><a class="flickr-monochrome" href="https://www.flickr.com/photos/nihgov/"><span class="icon"></span>Flickr</a></li>
|
||
<li><a class="social-monochrome" href="/news-events/social-media-outreach"><span class="icon"></span>More Social Media from NIH</a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<div class="l-footer-wrapper">
|
||
<footer class="l-footer" role="contentinfo">
|
||
<h2 class="element-invisible">Footer</h2>
|
||
<ul>
|
||
<li><a href="/">NIH Home</a></li>
|
||
<li><a href="/virtual-tour">Virtual Tour</a></li>
|
||
<li><a href="https://salud.nih.gov">En Español</a></li>
|
||
<li><a href="/about-nih/visitor-information">Visitor Information</a></li>
|
||
<li><a href="/about-nih/frequently-asked-questions">Frequently Asked Questions</a></li>
|
||
<li><a href="/privacy-policy">Privacy Policy</a></li>
|
||
<li><a href="/disclaimers">Disclaimers</a></li>
|
||
<li><a href="/accessibility">Accessibility</a></li>
|
||
<li><a href="/nih-website-archives">NIH Website Archives</a></li>
|
||
</ul>
|
||
<ul>
|
||
<li><a href="/nondiscrimination-notice">Nondiscrimination Notice</a></li>
|
||
<li><a href="/institutes-nih/nih-office-director/office-communications-public-liaison/freedom-information-act-office">Freedom of Information Act</a></li>
|
||
<li><a href="https://www.edi.nih.gov/no-fear-act">No Fear Act</a></li>
|
||
<li><a href="https://www.hhs.gov/vulnerability-disclosure-policy/index.html">HHS Vulnerability Disclosure</a></li>
|
||
<li><a href="https://oig.hhs.gov">Office of Inspector General</a></li>
|
||
<li><a class="lastTab" href="https://www.usa.gov/">USA.gov</a></li>
|
||
</ul>
|
||
<p>NIH…Turning Discovery Into Health<sup>®</sup></p>
|
||
<p>National Institutes of Health, 9000 Rockville Pike, Bethesda, Maryland 20892</p>
|
||
<p><a href="https://www.hhs.gov">U.S. Department of Health and Human Services</a></p>
|
||
</footer>
|
||
</div>
|
||
|
||
<div class="back-to-top"><a href="#"><span class="icon-arrow-up"></span><span class="text">Back to Top</span></a></div>
|
||
|
||
</div>
|
||
|
||
</div>
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_7Ukqb3ierdBEL0eowfOKzTkNu-Le97OPm-UqTS5NENU.js"></script>
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_E9yUYWK8EMydR0HMIp2PahVxPAClXyH0Cnh782A15UM.js"></script>
|
||
</body>
|
||
</html>
|
||
|