| SHORT COMMUNICATION |
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| Year : 2018 | Volume
: 13
| Issue : 2 | Page : 177-180 |
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Renal vascular response to angiotensin 1-7 in rats: the role of Mas receptor
Mehdi Nematbakhsh1, Azam Mansouri2
1 Water and Electrolytes Research Center; Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
2 Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
Correspondence Address:
Mehdi Nematbakhsh
Water and Electrolytes Research Center; Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan
I.R. Iran
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/1735-5362.223803
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Recently a cross talk between angiotensin 1-7 (Ang1-7) receptor (MasR) and angiotensin II receptors types 1 and 2 (AT1R and AT2R) has been highlighted. The effects of MasR antagonist (A779) compared to the vehicle on the renal blood flow (RBF) and renal vascular resistance (RVR) responses to Ang1-7 (300 ng/kg/min) infusion in the absence of Ang II receptors in male and female rats were determined at controlled renal perfusion pressure. Ang1-7 infusion did not alter mean arterial pressure in male and female rats. However, A779 compared to vehicle increased RBF (18% vs 3%) and decreased RVR (13% vs 4%) responses to Ang1-7 infusion significantly (P < 0.05) in male when AngII receptors were blocked. Such observation was not occurred in female animals. Finally it was concluded that renal vascular responses to Ang1-7 administration may not be exerted by MasR in male rats, and these responses are not mediated with AngII receptors. |
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