{"id":3897,"date":"2025-05-10T08:15:53","date_gmt":"2025-05-10T08:15:53","guid":{"rendered":"https:\/\/scientificworld.org\/?p=3897"},"modified":"2025-05-10T08:15:56","modified_gmt":"2025-05-10T08:15:56","slug":"new-study-links-protein-deficiency-to-leaky-brain-blood-vessels-in-neurodegenerative-diseases","status":"publish","type":"post","link":"https:\/\/scientificworld.org\/?p=3897","title":{"rendered":"New Study Links Protein Deficiency to Leaky Brain Blood Vessels in Neurodegenerative Diseases"},"content":{"rendered":"\n<p>Researchers at the University of Connecticut have discovered that reduced levels of the TDP-43 protein, caused by mutations in the TARDBP gene, may contribute to neurodegenerative diseases like Alzheimer\u2019s, frontotemporal dementia, and ALS. Their findings, published in&nbsp;<a href=\"http:\/\/dx.doi.org\/10.1126\/sciadv.ads0505\"><em>Science Advances<\/em>&nbsp;<\/a>on April 16, reveal that this protein deficiency weakens the blood-brain barrier, allowing harmful substances to leak into the brain and potentially accelerate disease progression.<\/p>\n\n\n\n<p>The study focused on endothelial cells, which line brain blood vessels and maintain the blood-brain barrier. When TDP-43 levels drop, these cells lose their ability to adhere tightly, creating gaps in the barrier. Using mouse models, the team observed that TARDBP mutations or targeted removal of TDP-43 from endothelial cells led to barrier breakdown, brain inflammation, and behavioral deficits. This suggests that TDP-43 dysfunction extends beyond neurons, implicating blood vessel cells in disease mechanisms.<\/p>\n\n\n\n<p>The findings highlight the complex role of TDP-43 across different brain cells. While genetic mutations explain some cases of ALS and frontotemporal dementia, most patients exhibit TDP-43 dysfunction without such mutations. Researcher Ashok Cheemala notes, \u201cOther unknown factors likely disrupt TDP-43, and identifying these could open new treatment avenues.\u201d The team is also investigating whether dysfunctional TDP-43 spreads between cells, potentially triggering a chain reaction.<\/p>\n\n\n\n<p>Patrick Murphy, a UConn biologist involved in the study, emphasized the broader goal: \u201cUnderstanding how TDP-43 becomes harmful and spreads may help us protect the brain, preserve the blood-brain barrier, and halt disease progression.\u201d<\/p>\n\n\n\n<p>This research underscores the importance of the blood-brain barrier in neurodegenerative diseases and points to TDP-43 as a critical target for future therapies. By exploring cell-specific vulnerabilities and non-genetic causes of TDP-43 dysfunction, scientists hope to develop strategies to slow or prevent these devastating conditions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Researchers at the University of Connecticut have discovered that reduced levels of the TDP-43 protein, caused by mutations in the TARDBP gene, may contribute to neurodegenerative diseases like Alzheimer\u2019s, frontotemporal dementia, and ALS. Their findings, published in&nbsp;Science Advances&nbsp;on April 16, reveal that this protein deficiency weakens the blood-brain barrier, allowing harmful substances to leak into [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1093],"tags":[1433,1656],"class_list":["post-3897","post","type-post","status-publish","format-standard","hentry","category-neuroscience","tag-neuroscience","tag-protein-deficiency"],"_links":{"self":[{"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/posts\/3897","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/scientificworld.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3897"}],"version-history":[{"count":2,"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/posts\/3897\/revisions"}],"predecessor-version":[{"id":3899,"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/posts\/3897\/revisions\/3899"}],"wp:attachment":[{"href":"https:\/\/scientificworld.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scientificworld.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scientificworld.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}