{"id":346,"date":"2015-07-09T11:49:36","date_gmt":"2015-07-09T18:49:36","guid":{"rendered":"https:\/\/keck.usc.edu\/news\/brain-study-shows-that-depression-reduces-size-of-hippocampus\/"},"modified":"2023-11-26T08:16:28","modified_gmt":"2023-11-26T16:16:28","slug":"brain-study-shows-that-depression-reduces-size-of-hippocampus","status":"publish","type":"post","link":"https:\/\/keck.usc.edu\/news\/brain-study-shows-that-depression-reduces-size-of-hippocampus\/","title":{"rendered":"Brain study shows that depression reduces size of hippocampus"},"content":{"rendered":"\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--article-hero \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--article-hero\"\n    \n      >\n\n    \n  <div class=\"text-container\">\n              \n<div class=\"f--field f--eyebrow\">\n\n    \n  <span>Press Release<\/span>\n\n\n\n<\/div>\n    \n              \n<div class=\"f--field f--page-title\">\n\n    \n  <h1>Brain study shows that depression reduces size of hippocampus<\/h1>\n\n\n<\/div>\n    \n    \n          <div class=\"meta\">\n        \n                  <span class=\"date\">July 09, 2015<\/span>\n              <\/div>\n    \n              \n<div class=\"f--field f--embed\">\n\n    \n  <div class=\"heateor_sss_sharing_container heateor_sss_horizontal_sharing\" data-heateor-ss-offset=\"0\" data-heateor-sss-href='https:\/\/keck.usc.edu\/news\/brain-study-shows-that-depression-reduces-size-of-hippocampus\/'><div class=\"heateor_sss_sharing_ul\"><a aria-label=\"Facebook\" class=\"heateor_sss_facebook\" href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https%3A%2F%2Fkeck.usc.edu%2Fnews%2Fbrain-study-shows-that-depression-reduces-size-of-hippocampus%2F\" title=\"Facebook\" rel=\"nofollow noopener\" target=\"_blank\" style=\"font-size:32px!important;box-shadow:none;display:inline-block;vertical-align:middle\"><span class=\"heateor_sss_svg\" 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11.903 5 10.826c0-1.08.382-1.993 1.146-2.738L8.128 6.12C8.873 5.372 9.785 5 10.864 5c1.087 0 2.004.382 2.75 1.146l2.777 2.79c.75.747 1.12 1.66 1.12 2.737 0 1.105-.392 2.045-1.183 2.817l1.186 1.186c.774-.79 1.708-1.186 2.805-1.186 1.078 0 1.995.377 2.75 1.132l2.804 2.804c.754.755 1.13 1.672 1.13 2.75z\"\/><\/svg><\/span><\/a><\/div><div class=\"heateorSssClear\"><\/div><\/div>\n\n\n<\/div>\n        \n  <\/div>\n\n          \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img\n                            data-src=\"https:\/\/keck.usc.edu\/news\/wp-content\/uploads\/sites\/68\/2023\/11\/hippocampus-600x432.jpg\"\n                    data-sizes=\"(min-width:1200px) 75vw, (min-width:768px) 83vw, 100vw\"          class=\"lazyload\"\n        \n        alt=\"hippocampus\"\n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n  \n\n  <\/div><\/div>\n\r\n\r\n\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--rich-text white\"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--rich-text\"\n    \n      >\n\n    \n  <div class=\"inner-wrapper\">\n        \n<div class=\"f--field f--wysiwyg\">\n\n    \n  <p>Chronic depression is associated with shrinkage in the hippocampus, a part of the brain related to learning and memory, according to new research led by a team from the Keck School of Medicine of USC.<br \/>\n\u201cDepressed people consistently had less brain tissue in the brain\u2019s memory centers,\u201d said Paul Thompson, PhD, professor at the Keck School of Medicine of USC and co-founder of the ENIGMA consortium, a global group of scientists working to uncover factors that help or harm the brain. The ENIGMA team at USC worked with researchers from the VU University Medical Center Amsterdam on this study.<br \/>\nThe research, which was published in the July 2 issue of <em>Molecular Psychiatry<\/em>, also revealed that the differences in the brain become more severe the longer an individual suffers from depression, as well as in people who receive a diagnosis of depression at an early age. The difference in the size of the hippocampus is not detectable when such a diagnosis is first made.<br \/>\n\u201cWe found that depression has a unique signature in the brain, which is not apparent at illness onset. We found greater brain abnormalities the longer people have been ill,\u201d said Derrek Hibar, PhD, an assistant professor at the Keck School and senior author of the study.<br \/>\nThe study is the largest ever of its kind, using brain imaging to compare brain volumes in people with and without depression. The findings are based on evidence from MRI scans from about 9,000 people collected by 65 researchers in seven countries. Of those, 1,728 patients had a clinical diagnosis of major depression and 7,199 were healthy controls.<br \/>\nPrevious smaller studies had suggested that depressed people might have smaller brain volumes in certain regions, but the research did not agree on a pattern of effects in the brain.<br \/>\n\u201cIn the future, we plan to continue this worldwide collaboration to examine the role of other major brain regions \u2014 including the cortex \u2014 in depressed patients,\u201d said Lianne Schmaal, PhD, assistant professor of psychiatry at the VU University Medical Center and first author of the study.<br \/>\nThe researchers noted that the findings point out that effective early intervention is vitally important in treating depression to prevent changes in the brain. This is the first of several broad studies on the topic, which will also look at which treatments are best at resisting this tissue loss and which preventable factors promote depression.<br \/>\nBy Hope Hamashige<\/p>\n\n\n\n<\/div>\n  <\/div>\n\n\n  <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":168,"featured_media":347,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[6],"tags":[79,80,57,20],"class_list":["post-346","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-press-release","tag-neuroimaging-and-informatics","tag-neurology","tag-recent","tag-research"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v26.9) - 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