Losartan, an angiotensin-II type 1 receptor blocker, attenuates CCl4-induced liver fibrosis with a positive impact on survival in mice
Journal Title: World Journal of Pharmaceutical Sciences - Year 2017, Vol 5, Issue 12
Abstract
Background: Angiotensin converting enzyme inhibitors (ACEIs) and angiotensin-II receptor blockers (ARBs) may provide synergistic effects to existing chemotherapies by reducing angiotensin II-mediated angiogenesis, fibrogenesis, mitogenesis and oxidative stress. Objective: We aimed to examine the effect of the ARB, losartan and the ACEIs, perindopril and fosinopril on carbon tetrachloride (CCl4)-induced liver fibrosis on the histopathologic level and assess their impact on survival of mice. Methods: liver fibrosis was induced by CCl4 and examined histologically. Mice were treated with silymarin (SI) (30 mg/kg), perindopril (PE) (1 mg/kg), fosinopril (FO) (2 mg/ kg) or losartan (LO) (10 mg/kg). Cumulative survival was done using the Kaplan-Meier method and the log-rank test. Results: The administration of PE and FO resulted in improved liver histology without survival benefits to mice. However, losartan demonstrated marked improvement of liver histology and a positive impact on survival which was comparable to silymarin. Conclusion: Interfering the renin-angiotensin system (RAS) through the blockade of angiotensin-II type 1 (AT1) receptors improved liver histology of CCl4-induced hepatic fibrosis that was associated with longer survival in mice. c
Authors and Affiliations
Rasha H. Abdelghany
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