{"id":9073,"date":"2024-08-15T18:18:39","date_gmt":"2024-08-15T18:18:39","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=9073"},"modified":"2024-08-15T18:18:39","modified_gmt":"2024-08-15T18:18:39","slug":"curcumin-on-exercise-induced-myocardial-fibrosis-in-rats","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/hu\/kurkumin-a-testmozgas-altal-kivaltott-szivizomfibrozisra-patkanyokban\/","title":{"rendered":"A kurkumin v\u00e9d\u0151 hat\u00e1sa a terhel\u00e9s \u00e1ltal kiv\u00e1ltott sz\u00edvizomfibr\u00f3zisra patk\u00e1nyokban"},"content":{"rendered":"<p>A kurkumin v\u00e9d\u0151 hat\u00e1sa a terhel\u00e9s \u00e1ltal kiv\u00e1ltott sz\u00edvizomfibr\u00f3zisra patk\u00e1nyokban<br \/>\nA sz\u00edvizomfibr\u00f3zis (MF) egy patol\u00f3giai folyamat, amelyet az extracellul\u00e1ris m\u00e1trix (ECM) t\u00falzott lerak\u00f3d\u00e1sa \u00e9s kiegyens\u00falyozatlan kollag\u00e9n-\u00f6sszet\u00e9tel jellemez a sz\u00edvizom s\u00e9r\u00fcl\u00e9s\u00e9t k\u00f6vet\u0151en. Szorosan \u00f6sszef\u00fcgg a k\u00fcl\u00f6nb\u00f6z\u0151 sz\u00edvbetegs\u00e9gekkel, p\u00e9ld\u00e1ul a sz\u00edvinfarktussal, a kr\u00f3nikus sz\u00edvel\u00e9gtelens\u00e9ggel \u00e9s a pitvarfibrill\u00e1ci\u00f3val. A kutat\u00e1sok kimutatt\u00e1k, hogy a t\u00falzott fiziol\u00f3giai stressz gyullad\u00e1sos reakci\u00f3kat v\u00e1lthat ki a sz\u00edvizomsz\u00f6vetben, ami sz\u00edvizomfibr\u00f3zishoz \u00e9s sz\u00edvizoms\u00e9r\u00fcl\u00e9shez vezet. A P38 MAPK, a mitog\u00e9n aktiv\u00e1lt protein kin\u00e1zok (MAPK-k) csal\u00e1dj\u00e1nak tagja, patol\u00f3gi\u00e1s vagy fiziol\u00f3gi\u00e1s stressz hat\u00e1s\u00e1ra aktiv\u00e1l\u00f3dhat a mitog\u00e9n \u00e9s stressz aktiv\u00e1lt protein kin\u00e1z 1 (MSK1) foszforil\u00e1l\u00e1s\u00e1val, hogy aktiv\u00e1lja a nukle\u00e1ris kappa-B faktort (NF - \u03ba B). Az NF - \u03ba B a gyullad\u00e1sos v\u00e1lasz f\u0151 szab\u00e1lyoz\u00f3 t\u00e9nyez\u0151je, amely homol\u00f3g \u00e9s heterol\u00f3g NF - \u03ba B\/Rel feh\u00e9rje dimerekb\u0151l \u00e1ll. Aktiv\u00e1l\u00f3d\u00e1s ut\u00e1n a sejtmagba jut, \u00e9s induk\u00e1lja a transzform\u00e1l\u00f3 n\u00f6veked\u00e9si faktor - \u03b2 1 (TGF - \u03b2 1) \u00e9s a tumor nekr\u00f3zis faktor - \u03b2 1 (TNF - \u03b2 1) m\u0171k\u00f6d\u00e9s\u00e9t. Az olyan pro-inflammatorikus faktorok, mint a tumor nekr\u00f3zis faktor - \u03b1 (TNF - \u03b1) \u00e9s az interleukin-1 \u03b2 (IL-1 \u03b2) expresszi\u00f3ja, amelyek k\u00f6z\u00fcl a TGF - \u03b2 1 az izomsz\u00f6veti fibr\u00f3zis f\u0151 induk\u00e1l\u00f3ja a szervezetben. A kurkumin az \u00e9vel\u0151 kurkuma n\u00f6v\u00e9nyb\u0151l kivont bioakt\u00edv komponens, amely sz\u00e1mos \u00e9lettani \u00e9s farmakol\u00f3giai hat\u00e1ssal rendelkezik, p\u00e9ld\u00e1ul antioxid\u00e1ns, gyullad\u00e1scs\u00f6kkent\u0151, r\u00e1kellenes \u00e9s neuroprotekt\u00edv hat\u00e1ssal. A kutat\u00f3csoport kor\u00e1bbi kutat\u00e1sai meger\u0151s\u00edtett\u00e9k, hogy az edz\u00e9s k\u00f6zbeni kurkumin-intervenci\u00f3 k\u00e9sleltetheti \u00e9s g\u00e1tolhatja az oxidat\u00edv stresszt \u00e9s a t\u00falzott terhel\u00e9s okozta edz\u00e9s okozta sz\u00edvizomk\u00e1rosod\u00e1st. Ugyanakkor hat\u00e9konyan elnyomhatja a t\u00falzott edz\u00e9sstressz \u00e1ltal kiv\u00e1ltott gyullad\u00e1sos v\u00e1laszt, lecs\u00f6kkentheti a pro-inflammatorikus faktorok, p\u00e9ld\u00e1ul a TGF - \u03b2 1 tartalm\u00e1t, jav\u00edthatja az edz\u00e9s okozta vesefibr\u00f3zist, \u00e9s v\u00e9di a vesefunkci\u00f3t\/szerkezetet. Ez a vizsg\u00e1lat a hossz\u00fa t\u00e1v\u00fa, nagy intenzit\u00e1s\u00fa terhel\u00e9s \u00e1ltal kiv\u00e1ltott terhel\u00e9s okozta szervi s\u00e9r\u00fcl\u00e9s \u00e1llati modellj\u00e9t hozta l\u00e9tre 6 hetes inkrement\u00e1lis terhel\u00e9ses fut\u00f3pados edz\u00e9ssel. A c\u00e9l annak a mechanizmusnak a vizsg\u00e1lata volt, amellyel a kurkumin szab\u00e1lyozza a p38 MAPK\/NF - \u03ba B jel\u00e1tviteli \u00fatvonalhoz kapcsol\u00f3d\u00f3 feh\u00e9rj\u00e9k aktiv\u00e1l\u00f3d\u00e1s\u00e1t \u00e9s expresszi\u00f3j\u00e1t, g\u00e1tolja a gyullad\u00e1sos faktorok szint\u00e9zis\u00e9t a sz\u00edvizomsz\u00f6vetben, enyh\u00edti a sz\u00edvizom ECM t\u00falzott lerak\u00f3d\u00e1s\u00e1t, amelyet a hossz\u00fa t\u00e1v\u00fa, nagy intenzit\u00e1s\u00fa edz\u00e9s okoz, \u00e9s jav\u00edtja a sz\u00edvizomfibr\u00f3zist.<\/p>\n<p>&nbsp;<\/p>\n<p>A hossz\u00fa t\u00e1v\u00fa \u00e9s t\u00falzott terhel\u00e9s hat\u00e1s\u00e1ra a sz\u00edv hossz\u00fa ideig magas sz\u00edvteljes\u00edtm\u00e9nyt tart fenn. A hosszan tart\u00f3 t\u00falzott kamrat\u00e1gul\u00e1s sz\u00edvizomfibr\u00f3zishoz vezet, \u00e9s fokozatosan kr\u00f3nikus sz\u00edvizomk\u00e1rosod\u00e1ss\u00e1 alakul, jelent\u0151sen n\u00f6velve a ritmuszavarok kock\u00e1zat\u00e1t. Breuckmann \u00e9s munkat\u00e1rsai a m\u00e1gneses rezonancia k\u00e9sleltetett gadol\u00ednium fokoz\u00e1s\u00fa technol\u00f3gi\u00e1j\u00e1val meg\u00e1llap\u00edtott\u00e1k, hogy a maratoni sportok szerelmeseinek magas a sz\u00edvizomfibr\u00f3zis el\u0151fordul\u00e1si ar\u00e1nya, ami a h\u00e9tk\u00f6znapi emberekn\u00e9l hajlamos a sz\u00edvizomk\u00e1rosod\u00e1sra. Rao meg\u00e1llap\u00edtotta, hogy a hossz\u00fa t\u00e1v\u00fa \u00e9s nagy intenzit\u00e1s\u00fa testmozg\u00e1s sz\u00edvizomk\u00e1rosod\u00e1st id\u00e9zett el\u0151 patk\u00e1nyokban, \u00e9s a t\u00falzott terhel\u00e9ses stressz megzavarta az ECM szint\u00e9zise \u00e9s degrad\u00e1ci\u00f3ja k\u00f6z\u00f6tti dinamikus egyens\u00falyt a sz\u00edvizomsz\u00f6vetben. Az ECM lerak\u00f3d\u00e1sa fokoz\u00f3dott, ami sz\u00edvizomfibr\u00f3zist induk\u00e1lt. Ezzel egyidej\u0171leg megn\u0151tt a cTnI koncentr\u00e1ci\u00f3ja, a sz\u00edvizomk\u00e1rosod\u00e1s markere a v\u00e9rk\u00f6zpontban, ami a sz\u00edvm\u0171k\u00f6d\u00e9s\/sz\u00f6veti morfol\u00f3gia\/infrastrukt\u00fara rendelleness\u00e9geihez vezetett. A tests\u00falyv\u00e1ltoz\u00e1s t\u00fckr\u00f6zheti az edz\u00e9sintenzit\u00e1s szervezetre gyakorolt hat\u00e1s\u00e1t. A vizsg\u00e1lat eredm\u00e9nyei azt mutatt\u00e1k, hogy a modellcsoportba tartoz\u00f3 patk\u00e1nyok nagy mennyis\u00e9g\u0171 energi\u00e1t \u00e9s anyagot fogyasztottak az edz\u00e9sintenzit\u00e1s miatt, amely meghaladta a szervezet edz\u00e9sterhel\u00e9st elvisel\u0151 k\u00e9pess\u00e9g\u00e9t, ami a kontrollcsoporthoz k\u00e9pest jelent\u0151s tests\u00falycs\u00f6kken\u00e9st eredm\u00e9nyezett. Ezzel egyidej\u0171leg a sz\u00edvizom glikog\u00e9n t\u00e9rfogatfrakci\u00f3ja megn\u0151tt, \u00e9s a sz\u00e9rum cTNI-tartalma jelent\u0151sen emelkedett. A sz\u00edvizomsz\u00f6vet morfol\u00f3gi\u00e1j\u00e1ban \u00e9s ultrastrukt\u00far\u00e1j\u00e1ban patol\u00f3giai v\u00e1ltoz\u00e1sok is bek\u00f6vetkeztek. Az ebben a vizsg\u00e1latban elfogadott 6 hetes fut\u00f3padon v\u00e9gzett inkrement\u00e1lis terhel\u00e9ses edz\u00e9sprogram a t\u00falzott terhel\u00e9ses stressz miatt t\u00falzott ECM-lerak\u00f3d\u00e1st \u00e9s reakt\u00edv sz\u00edvizomfibr\u00f3zist eredm\u00e9nyezett a patk\u00e1nyok sz\u00edvizomsz\u00f6vet\u00e9ben, ami sz\u00edvizomfunkci\u00f3\/szerkezeti k\u00e1rosod\u00e1shoz vezetett. A fenti eredm\u00e9nyek \u00f6sszhangban vannak a kor\u00e1bbi kutat\u00e1si eredm\u00e9nyekkel.<br \/>\nA kr\u00f3nikus gyullad\u00e1sos v\u00e1lasz kumulat\u00edv hat\u00e1sa sz\u00edvizomfibr\u00f3zist v\u00e1lthat ki. A MAPK-csal\u00e1d f\u0151 tagja, a p38 MAPK szab\u00e1lyozhatja a kapcsol\u00f3d\u00f3 g\u00e9nek expresszi\u00f3j\u00e1t vagy a feh\u00e9rjeszint\u00e9zist transzkripci\u00f3s vagy transzl\u00e1ci\u00f3s szinten, \u00e9s fontos szerepet j\u00e1tszik a stresszv\u00e1laszokban, p\u00e9ld\u00e1ul a gyullad\u00e1sban \u00e9s a sejt apopt\u00f3zisban. Aschar Sobi \u00e9s munkat\u00e1rsai meg\u00e1llap\u00edtott\u00e1k, hogy egerekn\u00e9l 6 hetes nagy intenzit\u00e1s\u00fa edz\u00e9s ut\u00e1n a p38 MAPK expresszi\u00f3ja megn\u0151tt, makrof\u00e1g infiltr\u00e1ci\u00f3 jelent meg az egerek pitvar\u00e1ban, a TNF - \u03b1 \u00e9s az IL-1 \u03b2 gyullad\u00e1sos faktorok expresszi\u00f3ja megn\u0151tt, \u00e9s sz\u00edvizomfibr\u00f3zis l\u00e9pett fel. Ugyanakkor a p38 MAPK-g\u00e1tl\u00f3kkal t\u00f6rt\u00e9n\u0151 beavatkoz\u00e1s ut\u00e1n a testmozg\u00e1s \u00e1ltal kiv\u00e1ltott pitvarfibrill\u00e1ci\u00f3 \u00e9s a fibr\u00f3zis g\u00e1tolt volt. Az NF - \u03ba B, mint gyorsan induk\u00e1lhat\u00f3 transzkripci\u00f3s faktor, fontos szerepet j\u00e1tszik a szervezet gyullad\u00e1sos v\u00e1lasz\u00e1ban, szab\u00e1lyozva az olyan gyullad\u00e1sos faktorok expresszi\u00f3j\u00e1t, mint a TGF - \u03b2 1 \u00e9s a TNF - \u03b1. Stambe \u00e9s munkat\u00e1rsai meg\u00e1llap\u00edtott\u00e1k, hogy a p38 MAPK aktiv\u00e1ci\u00f3j\u00e1nak blokkol\u00e1sa hat\u00e9konyan g\u00e1tolja a gyullad\u00e1sos k\u00e1rosod\u00e1st a vesesz\u00f6vetben. A TGF - \u03b2 1 a sz\u00edvizomfibr\u00f3zis f\u0151 induktora, \u00e9s t\u00faltermel\u00e9se megbonthatja az ECM szint\u00e9zis \u00e9s lebont\u00e1s k\u00f6z\u00f6tti egyens\u00falyt a sz\u00edvizomsz\u00f6vetben. El\u0151sz\u00f6r is, induk\u00e1lja a smad-komplexek k\u00e9pz\u0151d\u00e9s\u00e9t a hum\u00e1n sejtmagban, szab\u00e1lyozza a c\u00e9lg\u00e9nek aktiv\u00e1l\u00f3d\u00e1s\u00e1t a fibroblasztokban, nagy mennyis\u00e9g\u0171 ECM-komponenst, p\u00e9ld\u00e1ul kollag\u00e9nt szintetiz\u00e1l, \u00e9s t\u00falzott ECM-lerak\u00f3d\u00e1shoz vezet A TIMP-1 expresszi\u00f3j\u00e1nak fokoz\u00e1s\u00e1val \u00e9s az MMP aktivit\u00e1s\u00e1nak g\u00e1tl\u00e1s\u00e1val cs\u00f6kken az ECM lebont\u00e1sa. A kurkuma sokf\u00e9le hat\u00e1ssal rendelkezik, \u00e9s gyakran haszn\u00e1lj\u00e1k f\u0171szerk\u00e9nt, \u00e9lelmiszer-adal\u00e9kanyagk\u00e9nt \u00e9s gy\u00f3gyn\u00f6v\u00e9nyk\u00e9nt. A kurkumin, mint a kurkuma bioakt\u00edv polifenol-kivonata, els\u0151sorban a gyullad\u00e1s g\u00e1tl\u00e1s\u00e1ban \u00e9s az antioxid\u00e1ci\u00f3ban fejti ki eg\u00e9szs\u00e9g\u00fcgyi el\u0151nyeit. A vizsg\u00e1lat eredm\u00e9nyei azt mutatt\u00e1k, hogy a kontrollcsoporthoz k\u00e9pest a p38 MAPK \u00e9s a p-p38 MAPK\/p38 MAPK a modellcsoportba tartoz\u00f3 patk\u00e1nyok sz\u00edvizomsz\u00f6vet\u00e9ben nem mutatott szignifik\u00e1ns v\u00e1ltoz\u00e1st, de emelked\u0151 tendenci\u00e1t mutatott. Azonban a p-p38 MAPK \u00e9s az NF - \u03ba B p65 feh\u00e9rjeexpresszi\u00f3ja jelent\u0151sen megn\u0151tt, \u00e9s a sz\u00edvizomfibr\u00f3zis faktor TGF - \u03b2 1 \u00e9s a kapcsol\u00f3d\u00f3 gyullad\u00e1sos faktorok tartalma n\u0151tt, ami a sz\u00edvizom ECM t\u00falzott lerak\u00f3d\u00e1s\u00e1hoz vezetett; A kurkuminnal t\u00f6rt\u00e9n\u0151 beavatkoz\u00e1s ut\u00e1n a k\u00e9pz\u00e9si folyamat sor\u00e1n, a modellcsoporttal \u00f6sszehasonl\u00edtva, nem volt jelent\u0151s v\u00e1ltoz\u00e1s a p38 MAPK \u00e9s a p-p38 MAPK\/p38 MAPK patk\u00e1nyok sz\u00edvizomzat\u00e1ban, de cs\u00f6kken\u0151 tendenci\u00e1t mutattak. A p-p38 MAPK \u00e9s az NF - \u03ba B p65 feh\u00e9rjeexpresszi\u00f3ja jelent\u0151sen lecs\u00f6kkent, \u00e9s a TGF - \u03b2 1 \u00e9s a kapcsol\u00f3d\u00f3 gyullad\u00e1sos faktorok tartalma ennek megfelel\u0151en cs\u00f6kkent. A sz\u00edvizom ECM lerak\u00f3d\u00e1sa enyh\u00fclt; Ugyanakkor a sz\u00edvm\u0171k\u00f6d\u00e9s, a sz\u00f6veti morfol\u00f3gia \u00e9s az ultrastrukt\u00fara mind hat\u00e9konyan javult. Topcu Tarladacalisir \u00e9s munkat\u00e1rsai meg\u00e1llap\u00edtott\u00e1k, hogy a kurkuminnal t\u00f6rt\u00e9n\u0151 beavatkoz\u00e1s ut\u00e1n a fek\u00e9lyes vastagb\u00e9lgyullad\u00e1s modell patk\u00e1nyokn\u00e1l a p38 MAPK foszforil\u00e1ci\u00f3s szintje cs\u00f6kkent, a MAPK-k immunv\u00e1lasz jellemz\u0151i helyre\u00e1lltak, \u00e9s a gyullad\u00e1s \u00e9s a lipidperoxid\u00e1ci\u00f3 enyh\u00fclt. Kor\u00e1bbi kutat\u00e1saink meger\u0151s\u00edtett\u00e9k, hogy a kurkumin hat\u00e9konyan g\u00e1tolja a patk\u00e1nyok t\u00falzott terhel\u00e9ses stressz okozta vese gyullad\u00e1sos v\u00e1lasz\u00e1t, lecs\u00f6kkenti a pro-gyullad\u00e1sos faktorok, p\u00e9ld\u00e1ul a TGF - \u03b2 1 szintj\u00e9t, \u00e9s helyre\u00e1ll\u00edtja az ECM szint\u00e9zis \u00e9s lebont\u00e1s k\u00f6z\u00f6tti egyens\u00falyt. \u00d6sszefoglalva, a kurkumin p\u00f3tl\u00e1sa a hossz\u00fa t\u00e1v\u00fa nagy intenzit\u00e1s\u00fa edz\u00e9s sor\u00e1n hat\u00e9konyan g\u00e1tolhatja a terhel\u00e9s okozta sz\u00edvizomfibr\u00f3zis kialakul\u00e1s\u00e1t \u00e9s fejl\u0151d\u00e9s\u00e9t. Lehets\u00e9ges mechanizmusa az, hogy a kurkumin g\u00e1tolja a p38 MAPK t\u00falzott aktiv\u00e1l\u00f3d\u00e1s\u00e1t a sz\u00edvizomsz\u00f6vetben, lecs\u00f6kkenti az NF - \u03ba B p65 feh\u00e9rje expresszi\u00f3j\u00e1t, cs\u00f6kkenti a gyullad\u00e1sos faktorok, k\u00fcl\u00f6n\u00f6sen a TGF - \u03b2 1 szint\u00e9zis\u00e9t \u00e9s szekr\u00e9ci\u00f3j\u00e1t, ami sz\u00edvizomfibr\u00f3zist induk\u00e1l, jav\u00edtja az ECM szint\u00e9zis \u00e9s degrad\u00e1ci\u00f3 k\u00f6z\u00f6tti egyens\u00falyt, \u00e9s enyh\u00edti a sz\u00edvizomfibr\u00f3zist.<br \/>\nEbb\u0151l l\u00e1that\u00f3, hogy a kurkumin hat\u00e9konyan g\u00e1tolja a hossz\u00fa t\u00e1v\u00fa \u00e9s nagy intenzit\u00e1s\u00fa testmozg\u00e1st v\u00e9gz\u0151 patk\u00e1nyok sz\u00edvizomgyullad\u00e1s\u00e1nak gyullad\u00e1sos v\u00e1lasz\u00e1t a p38 MAPK \/ NF - \u03ba B jel\u00e1tviteli \u00fatvonal szab\u00e1lyoz\u00e1s\u00e1val, enyh\u00edti a sz\u00edvizomfibr\u00f3zist \u00e9s v\u00e9di a sz\u00edv szerkezet\u00e9t \/ funkci\u00f3j\u00e1t.<\/p>","protected":false},"excerpt":{"rendered":"<p>A kurkumin v\u00e9d\u0151 hat\u00e1sa a terhel\u00e9s \u00e1ltal kiv\u00e1ltott sz\u00edvizomfibr\u00f3zisra patk\u00e1nyokban A sz\u00edvizomfibr\u00f3zis (MF) egy patol\u00f3gi\u00e1s folyamat, amelyet az extracellul\u00e1ris m\u00e1trix (ECM) t\u00falzott lerak\u00f3d\u00e1sa \u00e9s kiegyens\u00falyozatlan kollag\u00e9n-\u00f6sszet\u00e9tel jellemez a sz\u00edvizom s\u00e9r\u00fcl\u00e9s\u00e9t k\u00f6vet\u0151en. Szorosan \u00f6sszef\u00fcgg a k\u00fcl\u00f6nb\u00f6z\u0151 sz\u00edvbetegs\u00e9gekkel, p\u00e9ld\u00e1ul a sz\u00edvinfarktussal, a kr\u00f3nikus sz\u00edvel\u00e9gtelens\u00e9ggel \u00e9s a pitvarfibrill\u00e1ci\u00f3val. A kutat\u00e1sok kimutatt\u00e1k, hogy a t\u00falzott [...]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Protective effect of curcumin on exercise-induced myocardial fibrosis in rats - China Chemical Manufacturer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangextracts.com\/hu\/kurkumin-a-testmozgas-altal-kivaltott-szivizomfibrozisra-patkanyokban\/\" \/>\n<meta property=\"og:locale\" content=\"hu_HU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Protective effect of curcumin on exercise-induced myocardial fibrosis in rats - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"Protective effect of curcumin on exercise-induced myocardial fibrosis in rats Myocardial fibrosis (MF) is a pathological process characterized by excessive deposition of extracellular matrix (ECM) and imbalanced collagen composition after myocardial injury. 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