{"id":119937,"date":"2025-01-10T10:45:34","date_gmt":"2025-01-10T08:45:34","guid":{"rendered":"https:\/\/realitatearutiera.ro\/?p=119937"},"modified":"2025-01-10T10:45:36","modified_gmt":"2025-01-10T08:45:36","slug":"leziunile-repetate-la-cap-ar-putea-reactiva-un-virus-latent-din-creier-declansand-alzheimerul","status":"publish","type":"post","link":"https:\/\/realitatearutiera.ro\/?p=119937","title":{"rendered":"Leziunile repetate la cap ar putea reactiva un virus latent din creier, declan\u0219\u00e2nd Alzheimerul"},"content":{"rendered":"\n<p><strong>Oameni de \u0219tiin\u021b\u0103 de la trei prestigioase universit\u0103\u021bi britanice au descoperit o leg\u0103tur\u0103 \u00eentre traumatismele craniene \u0219i apari\u021bia Alzheimerului \u0219i demen\u021bei.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"770\" height=\"540\" data-attachment-id=\"119938\" data-permalink=\"https:\/\/realitatearutiera.ro\/?attachment_id=119938\" data-orig-file=\"https:\/\/i1.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2025\/01\/image-26.png?fit=770%2C540&amp;ssl=1\" data-orig-size=\"770,540\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"image\" data-image-description=\"\" data-medium-file=\"https:\/\/i1.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2025\/01\/image-26.png?fit=300%2C210&amp;ssl=1\" data-large-file=\"https:\/\/i1.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2025\/01\/image-26.png?fit=770%2C540&amp;ssl=1\" src=\"https:\/\/i1.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2025\/01\/image-26.png?resize=770%2C540&#038;ssl=1\" alt=\"\" class=\"wp-image-119938\" style=\"width:413px;height:auto\" srcset=\"https:\/\/i1.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2025\/01\/image-26.png?w=770&amp;ssl=1 770w, https:\/\/i1.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2025\/01\/image-26.png?resize=300%2C210&amp;ssl=1 300w, https:\/\/i1.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2025\/01\/image-26.png?resize=768%2C539&amp;ssl=1 768w, https:\/\/i1.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2025\/01\/image-26.png?resize=130%2C90&amp;ssl=1 130w\" sizes=\"auto, (max-width: 770px) 100vw, 770px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<p>Concret, cercet\u0103torii de la Institutul de \u00cemb\u0103tr\u00e2nire a Popula\u021biei din Oxford \u0219i de la universit\u0103\u021bile Manchester \u0219i Tufts, din Marea Britanie, au descoperit c\u0103 traumatismele craniene, precum cele induse \u00een sport, dar \u0219i \u00een armat\u0103 pot reactiva virusuri latente din creier, declan\u0219\u00e2nd apari\u021bia unor afec\u021biuni neurodegenerative, precum boala Alzheimer \u0219i demen\u021ba.<\/p>\n\n\n\n<p>Chiar \u0219i o traum\u0103 cerebral\u0103 u\u0219oar\u0103 poate declan\u0219a aceast\u0103 reac\u021bie \u00een lan\u021b, duc\u00e2nd la modific\u0103ri d\u0103un\u0103toare asociate cu pierderea memoriei \u0219i declinul cognitiv, se arat\u0103 \u00eentr-un raport publicat de&nbsp;<a href=\"https:\/\/www.ox.ac.uk\/news\/2025-01-08-new-study-reveals-link-between-head-injuries-and-viruses-alzheimers-disease\">site-ul Universit\u0103\u021bii Oxford<\/a>.<\/p>\n\n\n\n<p>\u00cen studiile anterioare, cercet\u0103torii au demonstrat rolul pe care virusuri comune, precum&nbsp;virusul herpes simplex de tip 1 (HSV-1), a\u0219a-numitul virus al r\u0103celii, \u0219i virusul varicelo zosterian (VZV) \u2013 care provoac\u0103 varicela \u0219i zona zoster \u2013 \u00eel joac\u0103 \u00een dezvoltarea bolii Alzheimer.<\/p>\n\n\n\n<p>HSV-1 poate r\u0103m\u00e2ne latent \u00een celulele umane o via\u021b\u0103 \u00eentreag\u0103, dar atunci c\u00e2nd se activeaz\u0103 poate provoca modific\u0103ri care seam\u0103n\u0103 cu cele observate \u00een creierul pacien\u021bilor cu Alzheimer \u2013 forma\u021biuni asem\u0103n\u0103toare pl\u0103cilor amiloide, glioz\u0103, neuroinflamare \u0219i sc\u0103derea func\u021bionalit\u0103\u021bii.<\/p>\n\n\n\n<p>\u201dTraumatismele cerebrale sunt deja recunoscute ca fiind un factor de risc major, la fel ca efectul cumulativ al infec\u021biilor comune, pentru afec\u021biuni precum Alzheimer \u0219i demen\u021ba, dar aceasta este prima dat\u0103 c\u00e2nd am reu\u0219it s\u0103 demonstr\u0103m un mecanism pentru acest proces\u201d, a declarat prof. Ruth Itzhaki de la Universitatea din Manchester, care a condus cercetarea.<\/p>\n\n\n\n<p>\u00cen cel mai recent studiu, cercet\u0103torii au folosit un model 3D de \u021besut cerebral uman (organoid cerebral), creat prin bioinginerie, pentru a testa efectele traumelor fizice asupra celulelor creierului. Atunci c\u00e2nd \u021besuturile cerebrale au fost expuse la \u201elovituri u\u0219oare\u201d repetate, asem\u0103n\u0103toare contuziilor, virusul HSV-1, aflat anterior \u00een stare latent\u0103, a devenit activ.<\/p>\n\n\n\n<p>Aceast\u0103 reactivare a declan\u0219at inflama\u021bii, acumularea de pl\u0103ci beta-amiloide \u0219i formarea de proteine tau d\u0103un\u0103toare, care pot deteriora celulele creierului \u0219i pot afecta memoria.<\/p>\n\n\n\n<p>\u00cen plus, cercet\u0103torii au constatat, de asemenea, c\u0103 blocarea unei molecule inflamatorii numite interleukina-1 beta a prevenit multe dintre aceste efecte nocive \u00een modelele de laborator, deschiz\u00e2nd calea c\u0103tre noi poten\u021biale tratamente poten\u021biale.<\/p>\n\n\n\n<p>Experien\u021b\u0103 de 23 de ani \u00een pres\u0103, din care 16 ani \u00een presa online. Cred ca presa de calitate se poate face doar cu d\u0103ruire, repere morale puternice, conduit\u0103 \u0219i responsabilitate.<\/p>\n\n\n\n<p>Anca se simte deopotriv\u0103 fascinat\u0103 de oameni \u0219i de urmele lor trecute, dar \u0219i de Univers \u0219i natur\u0103, cu toate necuv\u00e2nt\u0103toarele ei. Crede c\u0103 trebuie s\u0103 ne \u00een\u021belegem locul \u00een aceast\u0103 or\u00e2nduial\u0103 pe care risc\u0103m s\u0103 o stric\u0103m din cauza unui ego prea mare. Apoi, chiar din natur\u0103 ne putem lua idei pentru a inova \u0219i a g\u0103si r\u0103spunsuri la multe \u00eentreb\u0103ri. Este interesat\u0103 de inova\u021bie \u0219i tehnic\u0103, de tot ce \u00eenseamn\u0103 miracolul numit om, cu toate \u201dcomponentele\u201d sale \u0219i tot<\/p>\n\n\n\n<p>Sursa:spotmedia<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Oameni de \u0219tiin\u021b\u0103 de la trei prestigioase universit\u0103\u021bi britanice au descoperit o leg\u0103tur\u0103 \u00eentre traumatismele craniene \u0219i apari\u021bia Alzheimerului \u0219i<\/p>\n","protected":false},"author":1,"featured_media":119938,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":"","jetpack_publicize_message":""},"categories":[80],"tags":[],"class_list":["post-119937","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sanatate"],"jetpack_featured_media_url":"https:\/\/i1.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2025\/01\/image-26.png?fit=770%2C540&ssl=1","jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p61naM-vct","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/119937","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=119937"}],"version-history":[{"count":1,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/119937\/revisions"}],"predecessor-version":[{"id":119939,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/119937\/revisions\/119939"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/media\/119938"}],"wp:attachment":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=119937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=119937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=119937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}