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In vivo Liver Endocytosis Followed by Purification of Liver Cells by Liver Perfusion
Published on: November 10, 2011
Is the expression of kinin B(1) receptor related to intrahepatic vascular response?
Marcia R Nagaoka1, Luciana Gomiero, Felipe O Teixeira
1Department of Biochemistry, Laboratory of Experimental Hepatology, Universidade Federal de São Paulo (UNIFESP) Rua Botucatu, 862 Edifício Jose Leal Prado, São Paulo, Brazil.
Unlabelled:
Bradykinin elicits an intrahepatic vascular response (IHVR) mediated by the constitutive B(2) receptor (B(2)R). The biological effects of kinins may also be mediated by the inducible B(1) receptor (B(1)R).
Aim:
To verify if the hepatic B(1)R expression modulates IHVR to kinins.
Method:
We evaluated the ability of bradykinin and B(1)R agonists to elicit an IHVR in normal rats and in those submitted to acute or chronic inflammatory stimuli, fibrosis, cirrhosis, or hepatic regeneration.
Results:
Bradykinin-induced IHVR was similar in all groups. B(1)R agonists did not elicit in any of them either a hypertensive or a hypotensive response. B(1) receptor induction was observed in all experimental groups (Western blot), except for the acute inflammatory group.
Conclusion:
B(1)R hepatic expression did not modulate IHVR to kinins.
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