Renal responses to AT1 receptor blockade
نویسندگان
چکیده
منابع مشابه
AT1 receptor blockade improves vasorelaxation in experimental renal failure.
It is not known whether angiotensin II type 1 receptor antagonists can influence the function and morphology of small arteries in renal failure. We investigated the effect of 8-week losartan therapy (20 mg/kg per day) on isolated mesenteric resistance arteries by wire and pressure myographs in 5/6 nephrectomized rats. Plasma urea nitrogen was elevated 1.6-fold after nephrectomy, and ventricular...
متن کاملRole of Bradykinin and Mas Receptor Blockade in Renal Vascular Responses to Angiotensin 1-7 in Adult Female Rats
Background and purpose: Chronic kidney disease is among the common diseases in the world. Studies show that women are more protected against renal diseases compared to men. On the other hand, vasodilatory axises of renin angiotensin system (angiotensin 1-7 (Ang 1-7)- Mas receptor (MasR)), kallikrein-kinin, and nitric oxide (NO) play key roles in kidney function and circulation in females. There...
متن کاملProximal tubular angiotensin II levels and renal functional responses to AT1 receptor blockade in nonclipped kidneys of Goldblatt hypertensive rats.
-Previous studies have shown that whereas the nonclipped kidney in two-kidney, one clip (2K1C) rats undergoes marked depletion of renin content and renin mRNA, intrarenal angiotensin II (Ang II) levels are not suppressed; however, the distribution and functional consequences of intrarenal Ang II remain unclear. The present study was performed to assess the plasma, kidney, and proximal tubular f...
متن کاملResponses to GABA-A receptor blockade in the hypothalamic PVN are attenuated by local AT1 receptor antagonism.
Blockade of GABA-A receptors in the hypothalamic paraventricular nucleus (PVN) has been repeatedly shown to increase arterial blood pressure (ABP), heart rate (HR), and sympathetic nerve activity (SNA), but the mechanism(s) that underlies this response has not been determined. Here, we tested whether full expression of the response requires activation of local ANG II AT1 receptors. ABP, HR, and...
متن کاملAcute AT1 receptor blockade does not improve the depressed baroreflex in rats with chronic renal hypertension.
To assess the role of angiotensin II in the sensitivity of the baroreflex control of heart rate (HR) in normotensive rats (N = 6) and chronically hypertensive rats (1K1C, 2 months, N = 7), reflex changes of HR were evaluated before and after (15 min) the administration of a selective angiotensin II receptor antagonist (losartan, 10 mg/kg, iv). Baseline values of mean arterial pressure (MAP) wer...
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ژورنال
عنوان ژورنال: American Journal of Hypertension
سال: 2000
ISSN: 0895-7061
DOI: 10.1016/s0895-7061(99)00248-4