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Solitary Functioning Kidneys Attenuate Renal Hemodynamics Responses to Angiotensin Ii in Male But Not in Female Rats Publisher



Pezeshki Z1 ; Nematbakhsh M2
Authors
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Authors Affiliations
  1. 1. Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran

Source: International Journal of Preventive Medicine Published:2024


Abstract

Backgrounds: People with solitary functioning kidneys (SFK) are prone to renal failure with time. Accordingly, local renin angiotensin system (RAS) and renal functions in subjects with SFK may act differently compared to normal condition. This study was designed to determine the renal hemodynamics responses to angiotensin II (Ang. II) in SFK male and female rats. Methods: Fifty to sixty‑day‑old male and female Wistar rats were subjected to unilateral renal artery obstruction, and 28 days later basal renal hemodynamic responses to Ang. II were examined in SFK groups compared to sham groups. Results: The findings indicated lower renal vascular resistance (RVR) and renal blood flow (RBF) responses to Ang. II in male SFK compared to sham group. Such observation was not seen in female animals. Conclusions: An increase in renal metabolism due to hyperfunction, especially in SFK male rats, may cause a decrease in RVR. Moreover, the lower RBF response to Ang. II may be related to alteration to Ang. II receptors in the remnant kidneys in SFK rats. © 2024 International Journal of Preventive Medicine.
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