The subcellular distribution and nature of rat renal renin has been Investigated by means of analytical subcellular fractionation and gel filtration on Sephadex G-100. During differential centrifugation, renin activity was recovered mainly in soluble and heary mltochondrial fractions. On sucrose gradient centrifugation in either a conventional or in a B XIV zonal rotor, renin activity equilibra...

The subcellular distribution and nature of rat renal renin has been investigated by means of analytical subcellular fractionation and gel filtration on Sephadex G-100. During differential centrifugation, renin activity was recovered mainly in soluble and heavy mitochondrial fractions. On sucrose gradient centrifugation in either a conventional or in a B XIV zonal rotor, renin activity equilibra...

A four day old female infant was admitted because of poor feeding, vomiting and jaundice. Laboratory examination showed hyperkalemia, mild hyponatremia and renal tubular acidosis type 4. Serum aldosterone and plasma renin activity were elevated but serum cortisol, 17 -hydroxyprogesterone, ACTH, 24 hour urinary 17- ketoste roid, pregnanetriol, renal function and sonogram were normal and henc...

The specific renin (EC 3.4.99.19) activity in the adrenal of spontaneously hypertensive rats was determined by a method that is capable of distinguishing renin from nonspecific renin-like activity of proteases by using specific antibody to renin. The renin level in the adrenals of adult spontaneously hypertensive rats with established hypertension was found to be 6-8 times as high as that of th...

A newly synthesized orally active renin inhibitor, N-morpholinoacetyl-(1-naphthyl)-L-alanyl-(4-thiazolyl)-L-alanyl (3S,4S)-4-amino-3-hydroxy-5-cyclohexylpentanoyl-n-hexylamide (ES-8891), was found to be a highly potent competitive inhibitor of human renin with an inhibition constant of 1.1 nM. This inhibitor was also active against monkey renin, although there was less inhibition of renin in pi...

YAGI, SHIGERU, DIETER M. KRAMSCH, IRVING M. MADOFF, AND WILLIAM HOLLANDER. Plasma renin activity in hypertension associated with coarctation of the aorta. Am. J. Physiol. 215(3) : 605-610. 1968.-The peripheral plasma renin activity of dogs was determined by rat bioassay before and after surgically induced coarctation of the thoracic aorta. Immediately following the coarctation, plasma pressor a...

Levels of angiotensin II immunoreactivity in the rat adrenal gland are over one hundredfold higher than those in plasma. It is unclear, however, whether the major source of adrenal angiotensin II immunoreactivity is intracellular synthesis by a local renin-angiotensin system, uptake by angiotensin II receptors, or both. Our studies show that angiotensin II immunoreactivity in the adrenal gland ...

Ionic, hormonal, and blood pressure responses to a single oral dose of the calcium channel blocker nifedipine were assessed in 25 essential hypertensive subjects. When grouped according to their renin-sodium profile, low renin subjects had a greater hypotensive response to nifedipine (change in diastolic blood pressure -20.0 +/- 1.4 vs -6.4 +/- 1.0%; p less than 0.005) than did high renin hyper...

The renin response to hypoxia in late gestation fetal sheep has been well characterized. However, the renin response to asphyxia-the combination of hypoxia and hypercapnia-has not been extensively studied. The purpose of this study was to determine 1) the interaction of hypoxia and hypercapnia in the control of renin secretion in late gestation fetal sheep and 2) the role of peripheral arterial...