{"id":910,"date":"2022-04-27T17:09:11","date_gmt":"2022-04-27T15:09:11","guid":{"rendered":"https:\/\/www.lactolerance.fr\/blog\/?p=910"},"modified":"2025-05-14T09:30:17","modified_gmt":"2025-05-14T07:30:17","slug":"test-genetique","status":"publish","type":"post","link":"https:\/\/www.lactolerance.fr\/blog\/en\/genetic-testing\/","title":{"rendered":"Lactose intolerance test: the genetic test"},"content":{"rendered":"<p>&nbsp;<\/p>\n<div>\n<div id='6810ff57b0a3e42121e0a1cd' data-autoclose='false' data-closetimer='5000' data-openonscroll='true' data-scrollvalue='800' data-title='LACTOLERANCE_diagnostic_V1.0' data-embedcookiedays='10' data-embedscheduling='true' data-embedtimed='false' data-embedexit='false' data-embedtimeformat='0' data-embedtimevalue='5' data-isldrawer='false' data-embedborderradius='0' data-embedfontsize='12' data-textcolor='#fb5f66' data-bgcolor='#fb5f66' data-prop='outgrow-d' data-type='outgrow-l' data-url='https:\/\/physiosynthese.outgrow.us\/6810ff57b0a3e42121e0a1cd?q=1' data-text='Get Started'><\/div>\n<p><script>var og_temp=document.createElement('script');og_temp.async=true;og_temp.defer=true;og_temp.src='\/\/dyv6f9ner1ir9.cloudfront.net\/assets\/js\/nploaderV2.js',og_temp.onload=function(){initIframe('6810ff57b0a3e42121e0a1cd')},document.querySelector('head').appendChild(og_temp)<\/script><\/div>\n<style>.outgrow-l,.outgrow-b {display: none !important}<\/style>\n<p class=\"p1\" style=\"text-align: justify;\"><span class=\"s1\">The test <b>genetic<\/b> (test of<b>DNA<\/b>) for lactose intolerance is a biological test that looks for the genotype of a person with suspected lactose intolerance. Lactose intolerance is the inability of the intestinal cells to break down <b>lactose<\/b> (milk sugar) into simple sugars (<b>glucose<\/b> and <b>galactose<\/b>) following a <b>deficit in <a href=\"\/fr\/content\/111-lactase\">lactase<\/a>.<\/b><span class=\"Apple-converted-space\">\u00a0<\/span><\/span><\/p>\n<p class=\"p1\" style=\"text-align: justify;\"><span class=\"s1\">It is done by taking a buccal sample made of <b>salivary epithelial cells<\/b> on the inner side of the cheeks, this sampling <b>is not painful<\/b>A swab is used to remove the cell smear. The sample is then tested for genotype using a biological gene amplification technique called : <b>chain reaction by<\/b> <b>polymerase<\/b> \"\u00a0<b>ACP<\/b>\u00a0\"or in English : <b>polymerase chain reaction<\/b> \" <b>PCR<\/b> \". It should be noted that before taking this test, the person must give free and informed consent to their doctor.<\/span><\/p>\n<h2 class=\"p1\" style=\"text-align: justify;\">Genetic testing, in which cases?<\/h2>\n<p class=\"p1\" style=\"text-align: justify;\"><span class=\"s1\">The genetic test <b>is only used in certain cases<\/b>It only allows the detection of <b>primary intolerance<\/b> of origin <b>genetic<\/b> and it is of no interest if the cause is secondary and transient (in case of gastroenteritis for example or inflammatory bowel disease). According to the studies, primary intolerance is frequent in adults, whereas secondary intolerance is often encountered in children since they have more gastroenteritis than adults.<\/span><\/p>\n<h2 class=\"p1\" style=\"text-align: justify;\"><span class=\"s1\">Lactose intolerance: other tests<\/span><\/h2>\n<p class=\"p1\" style=\"text-align: justify;\"><span class=\"s1\">Several tests can be used to diagnose lactose intolerance, the <b>eviction test<\/b> which consists of <b>exclude foods containing\u00a0<a href=\"https:\/\/www.lactolerance.fr\/blog\/en\/le-lactose\/\" target=\"_blank\" rel=\"noopener\">lactose<\/a> for 3 to 5 days<\/b>The improvement in symptoms supports a positive diagnosis of lactose intolerance. <\/span><\/p>\n<p class=\"p1\" style=\"text-align: justify;\"><span class=\"s1\"><b>The breathing test at<\/b> <b>hydrogen<\/b> remains <b>the most practiced and reliable<\/b>The test is non-invasive and its principle is simple: the increase in the hydrogen level measured on exhalation after ingestion of a quantity of lactose confirms the diagnosis in the majority of cases.<span class=\"Apple-converted-space\">\u00a0<\/span><\/span><\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/www.lactolerance.fr\/fr\/nos-complements-alimentaires\/134-pack-decouverte-protection-24h-134.html\"><img decoding=\"async\" class=\"alignnone wp-image-1108 size-full\" src=\"https:\/\/www.lactolerance.fr\/blog\/wp-content\/uploads\/2022\/12\/Blog-bas-de-page-FR-NOUVEAU-PACK-Decouverte.jpg\" alt=\"Image redirecting to the lactor\u00e9lance 1day pack and 9000 pill dispenser product sheet\" width=\"100%\" height=\"NaN\" srcset=\"https:\/\/www.lactolerance.fr\/blog\/wp-content\/uploads\/2022\/12\/Blog-bas-de-page-FR-NOUVEAU-PACK-Decouverte.jpg 2400w, https:\/\/www.lactolerance.fr\/blog\/wp-content\/uploads\/2022\/12\/Blog-bas-de-page-FR-NOUVEAU-PACK-Decouverte-400x133.jpg 400w, https:\/\/www.lactolerance.fr\/blog\/wp-content\/uploads\/2022\/12\/Blog-bas-de-page-FR-NOUVEAU-PACK-Decouverte-800x267.jpg 800w, https:\/\/www.lactolerance.fr\/blog\/wp-content\/uploads\/2022\/12\/Blog-bas-de-page-FR-NOUVEAU-PACK-Decouverte-768x256.jpg 768w, https:\/\/www.lactolerance.fr\/blog\/wp-content\/uploads\/2022\/12\/Blog-bas-de-page-FR-NOUVEAU-PACK-Decouverte-1536x512.jpg 1536w, https:\/\/www.lactolerance.fr\/blog\/wp-content\/uploads\/2022\/12\/Blog-bas-de-page-FR-NOUVEAU-PACK-Decouverte-2048x683.jpg 2048w, https:\/\/www.lactolerance.fr\/blog\/wp-content\/uploads\/2022\/12\/Blog-bas-de-page-FR-NOUVEAU-PACK-Decouverte-18x6.jpg 18w\" sizes=\"(max-width: 2400px) 100vw, 2400px\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>&nbsp; The genetic test (DNA test) for lactose intolerance is a biological test that looks for the genotype of a person with suspected lactose intolerance. Lactose intolerance is the inability of the intestinal cells to break down lactose (milk sugar) into simple sugars (glucose and galactose) as a result of a deficiency in [...].<\/p>","protected":false},"author":4,"featured_media":1063,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-910","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gerer-au-quotidien"],"_links":{"self":[{"href":"https:\/\/www.lactolerance.fr\/blog\/en\/wp-json\/wp\/v2\/posts\/910","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lactolerance.fr\/blog\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lactolerance.fr\/blog\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lactolerance.fr\/blog\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lactolerance.fr\/blog\/en\/wp-json\/wp\/v2\/comments?post=910"}],"version-history":[{"count":8,"href":"https:\/\/www.lactolerance.fr\/blog\/en\/wp-json\/wp\/v2\/posts\/910\/revisions"}],"predecessor-version":[{"id":2908,"href":"https:\/\/www.lactolerance.fr\/blog\/en\/wp-json\/wp\/v2\/posts\/910\/revisions\/2908"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lactolerance.fr\/blog\/en\/wp-json\/wp\/v2\/media\/1063"}],"wp:attachment":[{"href":"https:\/\/www.lactolerance.fr\/blog\/en\/wp-json\/wp\/v2\/media?parent=910"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lactolerance.fr\/blog\/en\/wp-json\/wp\/v2\/categories?post=910"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lactolerance.fr\/blog\/en\/wp-json\/wp\/v2\/tags?post=910"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}