Abstract | BACKGROUND AND RATIONALE: RESULTS: Compared with sham males perfused with vehicle, sham females presented higher perfusion pressure changes to ET-1 which was reversed only by 17 ß- estradiol. In cirrhosis, compared with males, 17 ß- estradiol no longer attenuated vascular responsiveness to ET-1 in females. In females, BDL rats had lower hepatic estrogen receptor α(ERβα) mRNA expression than that in sham rats. CONCLUSIONS: The sham females showed a stronger intrahepatic vascular constrictive effect to ET-1 than sham males, which could be reversed by 17β-estradiol. However, the influence of 17 β- estradiol was lost in cirrhotic females, which may be attributed, at least partly, to intrahepatic ER α down-regulation in females with cirrhosis.
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Authors | Hsin-Ling Ho, Fa-Yauh Lee, Shao-Jung Hsu, Sun-Sang Wang, I-Fang Hsin, Hui-Chun Huang, Jing-Yi Lee, Han-Chieh Lin, Shou-Dong Lee |
Journal | Annals of hepatology
(Ann Hepatol)
2015 May-Jun
Vol. 14
Issue 3
Pg. 404-13
ISSN: 1665-2681 [Print] Mexico |
PMID | 25864222
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Endothelin-1
- Estrogen Receptor alpha
- Estrogens
- Estradiol
- RNA
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Topics |
- Animals
- Endothelin-1
(pharmacology)
- Estradiol
(pharmacology)
- Estrogen Receptor alpha
(biosynthesis, genetics)
- Estrogens
(pharmacology)
- Female
- Gene Expression Regulation
- Hepatic Artery
(drug effects, physiopathology)
- Liver
(blood supply, metabolism)
- Liver Cirrhosis, Experimental
(drug therapy, genetics, physiopathology)
- Male
- RNA
(genetics)
- Rats
- Rats, Sprague-Dawley
- Real-Time Polymerase Chain Reaction
- Vasoconstriction
(drug effects)
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