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Comparative Analysis of Renin-Angiotensin System (RAS)-Related Gene Expression Between Hypertensive and Normotensive Rats.

Comparative Analysis of Renin-Angiotensin System (RAS)-Related Gene Expression Between Hypertensive and Normotensive Rats.
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Williamson CR, Khurana S, Nguyen P, Byrne CJ, Tai TC,


Williamson CR, Khurana S, Nguyen P, Byrne CJ, Tai TC, (click to view)

Williamson CR, Khurana S, Nguyen P, Byrne CJ, Tai TC,

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Medical science monitor basic research 2017 01 3123() 20-24
Abstract

BACKGROUND The renal renin-angiotensin system (RAS) is physiologically important for blood pressure regulation. Altered regulation of RAS-related genes has been observed in an animal model of hypertension (spontaneously hypertensive rats – SHRs). The current understanding of certain RAS-related gene expression differences between Wistar-Kyoto rats (WKYs) and SHRs is either limited or has not been compared. The purpose of this study was to compare the regulation of key RAS-related genes in the kidneys of adult WKYs and SHRs. MATERIAL AND METHODS Coronal sections were dissected through the hilus of kidneys from 16-week-old male WKYs and SHRs. RT-PCR analysis was performed for Ace, Ace2, Agt, Agtr1a, Agtr1b, Agtr2, Atp6ap2 (PRR), Mas1, Ren, Rnls, and Slc12a3 (NCC). RESULTS Increased mRNA expression was observed for Ace, Ace2, Agt, Agtr1a, Agtr1b, and Atp6ap2 in SHRs compared to WKYs. Mas1, Ren, Slc12a3, and Rnls showed no difference in expression between animal types. CONCLUSIONS This study shows that the upregulation of several key RAS-related genes in the kidney may account for the increased blood pressure of adult SHRs.

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