Body fluid volume and angiotensin II in maintenance of one-kidney, one clip hypertension.

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Body fluid volume and angiotensin II in maintenance of one-kidney, one clip hypertension.

To investigate the possible role of body fluid volume or the renin-angiotensin system in the maintenance of high blood pressure in chronic one-kidney, one clip (1K1C) hypertension, we studied whether blood pressure remained high after removal of the clip while the body fluid volume was kept constant or when angiotensin II (Ang II) was infused in conscious 1K1C rats. Blood pressure fell 58 +/- 1...

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Increased vascular formation of angiotensin II in one-kidney, one clip hypertension.

To assess the role of the vascular angiotensin II-generating system in one-kidney, one clip hypertension, we determined the angiotensin converting enzyme activity in plasma and vascular tissues and examined the pressor response to angiotensin II, angiotensin I, and tetradecapeptide renin substrate in isolated mesenteric arteries from one-kidney, one clip hypertensive rats 7 and 30 days after cl...

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Platelet activating factor and one-kidney, one clip hypertension.

The reduction in blood pressure to normotensive levels within 3 hours of unclipping the one-kidney, one clip Goldblatt hypertensive rat has been attributed to the release of potent blood pressure-lowering lipids, one of which is thought to be identical to platelet activating factor. The specific platelet activating factor receptor antagonist WEB 2086 was infused intravenously into hypertensive ...

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Regional vascular capacitance in rabbit one-kidney, one clip hypertension.

One-kidney Goldblatt hypertensive rabbits (New Zealand White) were studied after durations of renal artery clipping that varied from 6 to 17 days. Measurements included arterial pressure (ABP), iliac venous pressure (IVP), left atrial pressure (LAP), cardiac output (CO) (by thermodilution), blood volume (BV), cardiopulmonary volume (CPV), and hindleg thermodilution volume (HLV). These were dete...

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Increased angiotensin-converting enzyme activity of aorta in two-kidney, one-clip Goldblatt hypertension in rats.

There is increasing evidence that conversion of angiotensin I into angiotensin I1 can occur in the renal vasculature of humans [l l , and in the vascular beds of the hind limb of the dog 121. In previous experiments the specific angiotensionconverting enzyme in rat aorta [31 has been demonstrated. More recently, Mizuno et al. [41 have studied the subcellular localization of the enzyme activity ...

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ژورنال

عنوان ژورنال: Hypertension

سال: 1989

ISSN: 0194-911X,1524-4563

DOI: 10.1161/01.hyp.14.3.269