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GPER-1 Rapid Regulation Influences p-Akt Expression to Resist Stress-Induced Injuries in a Sex-Specific Manner
L. Sang, L. Fu, L. Gao, J. Adu-Amankwaah, Z. Gong, T. Li, Z. Ma, Z. Wang, J. Xu, H. Sun
Status minimální Jazyk angličtina Země Česko
Typ dokumentu časopisecké články
NLK
Directory of Open Access Journals
od 1991
Free Medical Journals
od 1998
PubMed Central
od 2020
ProQuest Central
od 2005-01-01
Medline Complete (EBSCOhost)
od 2006-01-01
Nursing & Allied Health Database (ProQuest)
od 2005-01-01
Health & Medicine (ProQuest)
od 2005-01-01
ROAD: Directory of Open Access Scholarly Resources
od 1998
- MeSH
- adrenalin MeSH
- fyziologický stres fyziologie MeSH
- krysa rodu rattus MeSH
- pohlavní dimorfismus MeSH
- potkani Sprague-Dawley * MeSH
- protoonkogenní proteiny c-akt * metabolismus MeSH
- receptory pro estrogeny metabolismus MeSH
- receptory spřažené s G-proteiny * metabolismus MeSH
- sexuální faktory MeSH
- zvířata MeSH
- Check Tag
- krysa rodu rattus MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
G protein-coupled estrogen receptor 1 (GPER-1) has gained recognition for its role in conferring cardioprotection. However, the extent to which GPER-1 exerts equally important effects in both sexes remains unclear. The study found similar expressions of GPER-1 in rat heart apex in both sexes. In male rats, administering epinephrine (Epi) at a dose of 31.36 microg/100 g resulted in a rapid decline in cardiac function, accompanied by a sharp increase in bax/bcl-2 levels. In contrast, female rats did not display significant changes in cardiac function under the same conditions. Additionally, compared to the injection of Epi alone (at a dose of 15.68 microg/100 g), the administration of G15 (GPER-1 antagonist) further decreased cardiac function in both male and female rats. However, it only increased mortality and lung coefficient in male rats. Conversely, G1 (GPER-1 agonist) administration improved cardiac function in both sexes. Notably, the apex of the male heart exhibited lower levels of inhibitory G protein (Galphai). Furthermore, female and male rats treated with Epi displayed elevated phosphorylated protein kinase B (p-Akt). Compared to their respective Epi groups, the administration of G15 increased p-Akt levels in female rat hearts but decreased them in male rat hearts. Conversely, the administration of G1 decreased p-Akt levels in females but rapidly increased them in male rats. Our study uncovers the vital role of GPER-1 in protecting against stress-induced heart injuries in a sex-specific manner. These findings hold immense potential for advancing targeted cardiac therapies and enhancing outcomes for both females and males.
Citace poskytuje Crossref.org
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