Az idegsejtek öregedése lehet a kulcs több betegségben

Szemlézte: Pöltz Ágnes

2021.04.23. 12:25

A demenciáról

forrás: Science Daily

Testünk legtöbb sejtjével ellentétben az idegsejtek évtizedekig élnek. Mivel ezek az agysejtjeink nem képesek örökítőanyaguk, a DNS megsokszorozására, ezért folyamatosan javítják az állományukon esett károsodásokat. Ahogyan öregednek, egyre kevésbé hatékonyak ezek a javítómechanizmusaik, ami feltételezhetően utat engedhet az Alzheimer-kór és a Parkinson-kór kialakulásának is. 

A tudomány már eddig is ismerte a károsodások állandó javításának jelenségét az agyban. Egy új vizsgálat szerint ez a tevékenység azonban nem véletlenszerű, hanem vannak olyan speciális területek, amelyek a feltevések szerint különös jelentőséggel bírnak. Az idegsejtek ezeket a területeket igyekeznek elsőként rendbe hozni az örökítőanyagon. 

A Science tudományos szakfolyóiratban közölt cikk egészen újszerű betekintést enged az agy öregedésének és betegségeinek genetikai hátterébe, ezzel pedig lehetőség kínálkozik ara, hogy az Alzheimer-kór, Parkinson-kór és más demenciához kapcsolódó betegségek kezelésére is hatékony beavatkozásokat alakíthassunk ki.

Dr. Rusty Gage professzor, a publikáció szerzője úgy nyilatkozott, hogy felfedezésük legfontosabb tanulsága abban áll, miszerint az agy genetikai állományában vannak olyan pontok, amik kiemelt figyelmet kapnak az agy öngyógyító folyamataiban. Ezen területek ismeretében pedig lehetővé válik majd olyan terápiák kidolgozása, amik éppen ezeket a genetikai területeket célozzák meg.
 

NYOMKÖVETÉS(string) «https://work1.felejtek.hu» (string) «{modul:wd_article}» INCLUDE MODUL: felejtek_meta CALL: Andrea\Plugins\Felejtek\Felejtek::modul_felejtek_meta (0,0021 mp) INCLUDE MODUL: jsonld CALL: Andrea\Plugins\JsonLD\JsonLD::modul_json_ld (0,0000 mp) INCLUDE MODUL: owm_daily_mobile MISSED CALL (owm_daily_mobile). INCLUDE MODUL: felejtek_menu:1 CALL: Andrea\Plugins\Felejtek\Felejtek::modul_felejtek_menu (0,0404 mp) INCLUDE MODUL: wd_article CALL: Andrea\Plugins\Webdoki\MagazineArticle::modul_wd_article (0,0041 mp) INCLUDE MODUL: felejtek_box:250 CALL: Andrea\Plugins\Felejtek\Felejtek::modul_felejtek_box (0,0005 mp) INCLUDE MODUL: felejtek_box:248 CALL: Andrea\Plugins\Felejtek\Felejtek::modul_felejtek_box (0,0004 mp) INCLUDE MODUL: basemenu CALL: Andrea\Core\PageList::modul_basemenu (0,0001 mp) INCLUDE MODUL: comments MISSED CALL (comments). INCLUDE MODUL: felejtek_related_articles CALL: Andrea\Plugins\Felejtek\Felejtek::modul_felejtek_related_articles (0,0000 mp) INCLUDE MODUL: felejtek_suggested_articles CALL: Andrea\Plugins\Felejtek\Felejtek::modul_felejtek_suggested_articles (0,0020 mp)
MUNKAMENET VÁLTOZÓarray ( 'SID' => '08e6a208eb016275ad94d07b93cf08e8', 'user' => 'O:16:"Andrea\Core\User":5:{s:8:"login_ok";b:0;s:13:"inner_modules";a:0:{}s:8:"template";s:0:"";s:5:"items";N;s:8:"' . "{debug_info}" . '*' . "{debug_info}" . 'props";a:4:{s:7:"message";s:0:"";s:10:"user_group";O:21:"Andrea\Core\UserGroup":4:{s:13:"inner_modules";a:0:{}s:8:"template";N;s:5:"items";N;s:8:"' . "{debug_info}" . '*' . "{debug_info}" . 'props";a:0:{}}s:15:"registered_date";s:0:"";s:8:"topic_id";a:0:{}}}', 'lang' => 'hu', 'currency' => 'huf', 'a' => 'cikk', 'p' => '1', 'article' => 671, 'template_path' => '/templates/felejtek2023', )
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