{"id":2372,"date":"2012-04-24T00:00:00","date_gmt":"2012-04-24T07:00:00","guid":{"rendered":"https:\/\/vermont.salk.edu\/news-release\/from-feast-to-famine-a-metabolic-switch-that-may-help-diabetes-treatment\/"},"modified":"2022-06-17T08:44:05","modified_gmt":"2022-06-17T15:44:05","slug":"from-feast-to-famine-a-metabolic-switch-that-may-help-diabetes-treatment","status":"publish","type":"disclosure","link":"https:\/\/www.salk.edu\/zh\/news-release\/from-feast-to-famine-a-metabolic-switch-that-may-help-diabetes-treatment\/","title":{"rendered":"From feast to famine: A metabolic switch that may help diabetes treatment"},"content":{"rendered":"<p>LA JOLLA, CA\u2014Humans are built to hunger for fat, packing it on during times of feast and burning it during periods of famine. But when deluged by foods rich in fat and sugar, the modern waistline often far exceeds the need to store energy for lean times, and the result has been an epidemic of diabetes, heart disease and other obesity-related problems.\n <\/p>\n<p>\nNow, scientists at the Salk Institute for Biological Studies have identified the linchpin of fat metabolism, a protein known as fibroblast growth factor 1 (FGF1), which may open new avenues in the treatment of diabetes.\n <\/p>\n<p>\nIn a paper published April 22 in <em>Nature<\/em>, the Evans lab reports that FGF1 activity is triggered by a high-fat diet and that mice lacking the protein swiftly develop <a href=\"\/zh\/ra\/diabetes.html\/\">\u7cd6\u5c3f\u75c5<\/a>. This suggests that FGF1 is crucial to maintaining the body&#8217;s sensitivity to insulin and normal levels of sugar in the blood.\n <\/p>\n<div class=\"row\" style=\"\"><div class=\"col-md-12 col-md-push-0\"><div class=\"video-anchor\" id=\"video-vQtSqG-_U8g\"><\/div><div class=\"embed-responsive embed-responsive-16by9\"> <iframe class=\"embed-responsive-item\" src=\"\/\/www.youtube.com\/embed\/vQtSqG-_U8g?rel=0\" webkitallowfullscreen mozallowfullscreen allowfullscreen><\/iframe><\/div><!-- .embed-responsive --><\/div><!-- .col-md-*size --><\/div><!-- .\/row -->\n<p>\n&#8220;Because humans are good at storing fat during times of plenty, we are also excellent at surviving times of famine,&#8221; says <a href=\"\/zh\/faculty\/evans.html\/\">Ronald M. Evans<\/a>, a professor in Salk&#8217;s <a href=\"\/zh\/faculty\/gene_expression_laboratory.html\/\">\u57fa\u56e0\u8868\u8fbe\u5b9e\u9a8c\u5ba4<\/a> and lead author of the paper. &#8220;The fat tissues of our body are like batteries, providing us with a steady source of energy when food is scarce. FGF1 governs the expansion and contraction of fat and thus controls the ebb and flow of energy throughout our body.&#8221;\n <\/p>\n<div class=\"imageCaption\"><img decoding=\"async\" alt=\"thale cress\" src=\"https:\/\/www.salk.edu\/wp-content\/uploads\/2012\/01\/557_evans2.jpg\"\/><\/p>\n<p>\nRon Evans, Professor Gene Expression Laboratory, Michael Downes, Senior Staff Scientist and Jae Myoung Suh, Postdoctoral Research Associate.\n<\/p>\n<p>\nImage:  Courtesy of the Salk Institute for Biological Studies<\/p>\n<\/div>\n<p>\nObesity rates have soared in the United States in recent decades, with more than one third of U.S. adults and 17 percent of children and adolescents now considered obese, according to the <a href=\"http:\/\/www.cdc.gov\/\">Centers for Disease Control and Prevention<\/a>.\n<\/p>\n<p>\nAs the number of overweight people has grown, so too has the incidence of metabolic disease, with nearly 26 million Americans estimated to have obesity-related type 2 diabetes. With annual costs exceeding well over $200 billion, obesity is a chronic disease that is consuming a huge portion of our health care dollars.\n<\/p>\n<p>\nAlthough exercise and calorie restriction are known to be effective at preventing and treating diabetes, the obesity epidemic continues to grow and new drugs to treat the problem are desperately needed.  Against this backdrop, the Evans lab discovery is an important breakthrough\u2014and a surprise.\n <\/p>\n<p>\n&#8220;The discovery of FGF1 was unexpected\u2014and intriguing\u2014because it was believed to do nothing,&#8221; says Jae Myoung Suh, a postdoctoral researcher in Evans&#8217;s laboratory and co-first author on the paper. &#8220;If you deplete FGF1 from the body, nothing happens when the mice are fed a steady low fat diet. But when given a high-fat, &#8220;Western-style&#8221; diet the mice develop an aggressive form of diabetes and experience a system-wide breakdown of their metabolic health.\n <\/p>\n<div class=\"imageCaption\"><img decoding=\"async\" alt=\"a protein known as fibroblast growth factor 1 (FGF1)\" src=\"https:\/\/www.salk.edu\/wp-content\/uploads\/2012\/01\/557_evans.jpg\"\/><\/p>\n<p>The Salk researchers discovered that mice lacking a protein known as fibroblast growth factor 1 (FGF1) were unable to store and use fat normally.\n  <\/p>\n<p>\nWhen these mice were switched from a high-fat diet to a normal diet, they developed uneven lumps of fat (seen in white in the above image) in their body tissues, suggesting that their fat metabolism mechanisms had gone awry.\n <\/p>\n<p>\nImage: Courtesy of Jae Myoung Suh, research associate, Gene Expression Laboratory<\/p>\n<\/div>\n<p>\n&#8220;These abnormalities cause abdominal or stomach fat to become inflamed,&#8221; says Michael Downes, a senior staff scientist in Salk&#8217;s Gene Expression Laboratory and co-lead author on the paper. &#8220;This is important because inflamed visceral fat has been linked to heightened risk for diabetes and other obesity-related diseases, such as heart disease and stroke.&#8221;\n <\/p>\n<p>\nThe scientists also found that FGF1 is regulated by the antidiabetic drug Actos, which is used to increase the body&#8217;s sensitivity to insulin. But Actos and related drugs, though helpful, have side effects that limit their use.\n <\/p>\n<p>\nThus, Evans and his colleagues plan to explore whether FGF1 might point to a new way to control diabetes by avoiding the drawbacks of Actos and providing a more natural means of increasing insulin sensitivity.\n<\/p>\n<p>\nJohan Jonker, a former postdoctoral researcher in Evans&#8217;s lab, now at University of Groningen, Netherlands, was co-first author on the paper. Other authors on the paper were: Annette Atkins, Maryam Ahmadian, Jamie Whyte, Mingxiao He, Henry Juguilon, Yun-Qiang Yin, Colin Phillips and Ruth Yu, from the Salk Institute; and Pingping Li, Jerrold Olefsky and Robert Henry, from University of California, San Diego.<\/p>\n<p>The research was supported by the National Institutes of Health, the Leona M. and Harry B. Helmsley Charitable Trust and the Howard Hughes Medical Institute.\n<\/p>\n<p><strong><br \/>\nAbout the Salk Institute for Biological Studies:<\/strong><br \/>\nThe Salk Institute for Biological Studies is one of the world&#8217;s preeminent basic research institutions, where internationally renowned faculty probe fundamental life science questions in a unique, collaborative, and creative environment. Focused both on discovery and on mentoring future generations of researchers, Salk scientists make groundbreaking contributions to our understanding of cancer, aging, Alzheimer&#8217;s, diabetes and infectious diseases by studying neuroscience, genetics, cell and plant biology, and related disciplines.\n<\/p>\n<p>\nFaculty achievements have been recognized with numerous honors, including Nobel Prizes and memberships in the National Academy of Sciences. Founded in 1960 by polio vaccine pioneer Jonas Salk, M.D., the Institute is an independent nonprofit organization and architectural landmark.<\/p>","protected":false},"featured_media":0,"template":"","faculty":[91],"disease-research":[165,123,166],"class_list":["post-2372","disclosure","type-disclosure","status-publish","hentry","faculty-ronald-evans","disease-research-diabetes-type-2","disease-research-metabolism-and-diabetes","disease-research-obesity"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>From feast to famine: A metabolic switch that may help diabetes treatment - Salk Institute for Biological Studies<\/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:\/\/www.salk.edu\/zh\/news-release\/from-feast-to-famine-a-metabolic-switch-that-may-help-diabetes-treatment\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"From feast to famine: A metabolic switch that may help diabetes treatment - Salk Institute for Biological Studies\" \/>\n<meta property=\"og:description\" content=\"LA JOLLA, CA\u2014Humans are built to hunger for fat, packing it on during times of feast and burning it during periods of famine. 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