New MRI Tool Predicts Dementia Risk Decades in Advance by Measuring Brain Aging
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\nResearchers from Duke University, Harvard, and the University of Otago have developed a groundbreaking tool that estimates how fast a person is aging using a single brain MRI scan, SciTech Daily reported. This innovative method can predict future risks of dementia and other chronic diseases years before symptoms appear, offering a crucial window for early intervention.<\/p>\n
The tool, named DunedinPACNI, was trained on data from the Dunedin Study, a long-term health research project tracking over 1,000 individuals born in New Zealand in the early 1970s. By analyzing changes in various health markers over nearly 20 years, researchers created a score representing the aging rate. DunedinPACNI then estimates this score solely from brain MRI scans taken at midlife.<\/p>\n
Studies across multiple populations in the U.S., U.K., Canada, and Latin America confirmed that faster brain aging correlates with poorer cognitive performance, accelerated hippocampal shrinkage, and a significantly higher risk of developing dementia. In one North American study, participants aging fastest were 60% more likely to develop dementia and experienced earlier memory decline.<\/p>\n
Beyond brain health, faster aging also predicted increased frailty, higher rates of chronic diseases like heart attacks and strokes, and a 40% greater risk of death within several years.<\/p>\n
The researchers believe DunedinPACNI could revolutionize early detection and treatment of age-related diseases, especially Alzheimer\u2019s, by identifying risks before irreversible brain damage occurs. Further research is underway to translate this tool into clinical use, potentially transforming personalized aging risk assessment.<\/p>\n","protected":false},"excerpt":{"rendered":"
New MRI Tool Predicts Dementia Risk Decades in Advance by Measuring Brain Aging ——————————— Researchers from Duke University, Harvard, and the University of Otago have developed a groundbreaking tool that estimates how fast a person is aging using a single brain MRI scan, SciTech Daily reported. This innovative method can predict future risks of dementia …<\/p>\n","protected":false},"author":1,"featured_media":128382,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":{"facebook_108372464460192_245495985553329":""},"rop_publish_now_history":[],"rop_publish_now_status":"pending","footnotes":""},"categories":[21],"tags":[],"class_list":["post-128383","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science"],"yoast_head":"\n