Mechanism yekuita steroid mahormone

 KNOWLEDGE    |      2023-03-28

Gene kutaura dzidziso. Mahomoni eSteroid ane huremu hudiki hwemamorekuru uye ari lipid-soluble. Vanogona kupinda maseru anonangwa nekuparadzirwa kana kutakura kutakura. Mushure mekupinda mumasero, mahomoni e-steroid anosunga kune zvinogamuchirwa mu cytosol kuti aite hormone-receptor complexes, iyo inogona kupinda allosteric translocation kuburikidza nenyukireya membrane pasi pekushisa kwakakodzera uye Ca2 + kubatanidzwa.

Mushure mekupinda mukati, iyo hormone inosungirirana kune receptor mu nucleus kuti iite yakaoma. Iyi yakaoma inosungira kune chaiwo masaiti muchromatin asiri histones, anotanga kana kuvharidzira DNA transcription process panzvimbo ino, uyezve inosimudzira kana kuvharidzira kuumbwa kwemRNA. Nekuda kweizvozvo, inokurudzira kana kuderedza kuumbwa kwemamwe mapuroteni (kunyanya ma enzymes) kuti iwane mhedzisiro yayo yehupenyu. Molekuru imwe chete yehomoni inogona kugadzira zviuru zvemapuroteni mamorekuru, nekudaro inowana basa rakawedzerwa rehomoni.

Hormone Response Panguva yekuita tsandanyama, mazinga emahomoni akasiyana siyana, kunyanya ayo anounganidza simba rekupa, anochinja kune akasiyana madhigirii uye anokanganisa metabolic level yemuviri uye mashandiro enhengo dzakasiyana. Kuyera mazinga emamwe mahormone panguva uye mushure mekuita maekisesaizi uye nekuaenzanisa nemaitiro akanyarara kunonzi mhinduro yehomoni pakurovedza muviri.

MaHORMONE anokurumidza kupindura, akadai seEPINEPHRINE, NOrepINEPHRINE, CORTISOL, uye ADRENOCORTICOTROPIN, ANOKUKUDZWA ZVIKURU muplasma PAMBERI PASHURE KUITA MAESA uye akakwira mukati menguva pfupi.

Mahomoni epakati anoshanda, akadai sealdosterone, thyroxine, uye pressor, anosimuka zvishoma nezvishoma uye zvishoma nezvishoma muplasma mushure mekutanga kwekurovedza muviri, kusvika pakakwirira mukati memaminitsi.

Mahomoni anononoka, akadai sekukura kwehomoni, glucagon, calcitonin uye insulini, haishanduki pakarepo mushure mekutanga kwekurovedza muviri, asi zvishoma nezvishoma kuwedzera mushure me30 kusvika ku40min yekurovedza muviri uye kusvika pakakwirira pane imwe nguva.