{"id":1837,"date":"2014-05-15T00:00:00","date_gmt":"2014-05-15T00:00:00","guid":{"rendered":"http:\/\/www.neurodegenerationresearch.eu\/2014\/05\/better-cognition-seen-with-gene-variant-carried-by-one-in-five\/"},"modified":"2014-09-22T09:14:37","modified_gmt":"2014-09-22T09:14:37","slug":"better-cognition-seen-with-gene-variant-carried-by-one-in-five","status":"publish","type":"post","link":"https:\/\/neurodegenerationresearch.eu\/fi\/2014\/05\/better-cognition-seen-with-gene-variant-carried-by-one-in-five\/","title":{"rendered":"Better cognition seen with gene variant carried by one in five"},"content":{"rendered":"<p><strong>A scientific team led by the Gladstone Institutes and UC San Francisco has discovered that a common form of a gene already associated with long life also improves learning and memory, a finding that could have implications for treating age-related diseases like Alzheimer&#8217;s.<\/strong><\/p>\n<p>The researchers found that people who carry a single copy of the KL-VS variant of the KLOTHO gene perform better on a wide variety of cognitive tests. When the researchers modeled the effects in mice, they found it strengthened the connections between neurons that make learning possible \u0096 what is known as synaptic plasticity \u0096 by increasing the action of a cell receptor critical to forming memories. <\/p>\n<p>The discovery is a major step toward understanding how genes improve cognitive ability and could open a new route to treating diseases like Alzheimer&#8217;s. Researchers have long suspected that some people may be protected from the disease because of their greater cognitive capacity, or reserve. Since elevated levels of the klotho protein appear to improve cognition throughout the lifespan, raising klotho levels could build cognitive reserve as a bulwark against the disease. <\/p>\n<p>&amp;quot;As the world&#8217;s population ages, cognitive frailty is our biggest biomedical challenge,&amp;quot; said Dena Dubal, MD, PhD, assistant professor of neurology, the David A. Coulter Endowed Chair in Aging and Neurodegeneration at UCSF and lead author of the study, <link http:\/\/www.cell.com\/cell-reports\/abstract\/S2211-1247(14)00287-3 - external-link-new-window \"Opens external link in new window\">published May 8 in Cell Reports<\/link>. &amp;quot;If we can understand how to enhance brain function, it would have a huge impact on people&#8217;s lives.&amp;quot; <\/p>\n<p>Klotho was discovered in 1997 and named after the Fate from Greek mythology who spins the thread of life. The investigators found that people who carry a single copy of the KL-VS variant of the KLOTHO gene, roughly 20 percent of the population, have more klotho protein in their blood than non-carriers. Besides increasing the secretion of klotho, the KL-VS variant may also change the action of the protein and is known to lessen age-related cardiovascular disease and promote longevity. <\/p>\n<p>The team&#8217;s report is the first to link the KL-VS variant, or allele, to better cognition in humans, and buttresses these findings with genetic, electrophysiological, biochemical and behavioral experiments in mice. The researchers tested the associations between the allele and age-related human cognition in three separate studies involving more than 700 people without dementia between the ages of 52 and 85. Altogether, it took about three years to conduct the work. <\/p>\n<p>&amp;quot;These surprising results pave a promising new avenue of research,&amp;quot; said Roderick Corriveau, Ph.D., program director at NIH&#8217;s National Institute of Neurological Disorders and Stroke (NINDS). &amp;quot;Although preliminary, they suggest klotho could be used to bump up cognition for people suffering from dementia.&amp;quot; <\/p>\n<p>Having the KL-VS allele did not seem to protect people from age-related cognitive decline. But overall the effect was to boost cognition, so that the middle-aged study participants began their decline from a higher point. <\/p>\n<p>Source:&amp;nbsp; NIH, USA<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A scientific team led by the Gladstone Institutes and UC [&hellip;]<\/p>\n<a href=\"https:\/\/neurodegenerationresearch.eu\/fi\/2014\/05\/better-cognition-seen-with-gene-variant-carried-by-one-in-five\/\">View Post<\/a>","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[22],"tags":[],"class_list":["post-1837","post","type-post","status-publish","format-standard","hentry","category-research-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Better cognition seen with gene variant carried by one in five - JPND Neurodegenerative Disease Research<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/neurodegenerationresearch.eu\/2014\/05\/better-cognition-seen-with-gene-variant-carried-by-one-in-five\/\" \/>\n<meta property=\"og:locale\" content=\"fi_FI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Better cognition seen with gene variant carried by one in five - 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