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Effects Of Angiotensin 1-7 On The Actions Of Angiotensin Ii In The Renal And Mesenteric Vasculature Of Hypertensive And Streptozotocin-Induced Diabetic Rats, Mohd Rais Mustafa, Murugan Dharmani, Francis I. Achike, Meng-Kwoon Sim
Effects Of Angiotensin 1-7 On The Actions Of Angiotensin Ii In The Renal And Mesenteric Vasculature Of Hypertensive And Streptozotocin-Induced Diabetic Rats, Mohd Rais Mustafa, Murugan Dharmani, Francis I. Achike, Meng-Kwoon Sim
Mohd Rais Mustafa
Angiotensin 1-7, a heptapeptide derived from metabolism of either angiotensin I or angiotensin II, is a biologically active peptide of the renin–angiotensin system. The present study investigated the effect of angiotensin 1-7 on the vasopressor action of angiotensin II in the renal and mesenteric vasculature of Wistar-Kyoto (WKY) rats, spontaneously hypertensive rats (SHR) and streptozotocin-induced diabetic rats. Angiotensin II-induced dose-dependent vasoconstrictions in the renal vasculature. The pressor response was enhanced in the SHR and reduced in the streptozotocin-diabetic rat compared to WKY rats. Angiotensin 1-7 attenuated the angiotensin II pressor responses in the renal vasculature of WKY and SHR rats. …