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Are angiotensins involved in the hemodynamic changes of cirrhosis patients?
Date:6/11/2009

resistance, indicating that the final functional effects of the RAS may reflect a balance between these 2 opposing peptides.

The relationship between Ang-(1-7) and Ang 2 may play a role in hemodynamic changes of human cirrhosis. The peptide Ang-(1-7) probably predominates in the peripheral circulation in the initial stages of human cirrhosis and in the splanchnic circulation in the advanced stages, both contributing to a reduction in vascular resistance and consequently to hyperdynamic circulation. In the peripheral circulation of patients with advanced cirrhosis, when compared to the splanchnic circulation, Ang 2 probably leads to extra-splanchnic vasoconstriction. Although further studies with a larger number of patients should address the precise role of RAS in human cirrhosis, this research opens the possibility that future therapies interfering with the RAS in both the systemic and splanchnic circulation should lead to more success in the management of the hemodynamic changes in human cirrhosis.


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World Journal of Gastroenterology
Source:Eurekalert

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