منابع مشابه
Plasma Catecholamines and Essential Hypertension
Of 78 comparative studies of plasma catecholamines in patients with essential hypertension and in normotensive controls, most reported higher catecholamine levels in the hypertensives, although only about 40% of the studies were positive (reporting statistically significant hypertensivenormotensive differences). Although there was dramatic variability in catecholamine values within and across s...
متن کاملPlasma catecholamines and chronic congestive heart failure.
Heart Failure To the Editor: We read with great interest the paper by Swedberg et al.1 With respect to it, we will supply additional information that might aid in the understanding of the failure of imidazoline’s agonists to improve chronic congestive heart failure (CCHF) in patients. We have assessed all plasma neurotransmitters in some 30 000 normal and diseased subjects. Included were noradr...
متن کاملModified fluorometric method for determining plasma catecholamines.
Plasma catecholamines were fluorometrically determined by a modification of the standard alumina-trihydroxyindole method in which radioactive tracer catecholamines are used to follow the chromatographic behavior of the endogenous catecholamines on alumina. This modification permits appropriate fluorometry of that portion of the eluate with the highest concentration of catecholamines, because in...
متن کاملPlasma catecholamines, plasma renin activity and plasma aldosterone in tetraplegic man, horizontal and tilted.
1. Plasma catecholamines, plasma renin activity, plasma aldosterone and haematocrit were measured in four subjects with physiologically complete cervical spinal cord transections, before, during and after head-up tilt to 45 degrees for 30 min. Plasma catecholamines were measured in five normal male volunteers in the supine position and after head-up tilt to 45 degrees for 10 min. 2. After 10 mi...
متن کاملPlasma and urinary catecholamines in salt-sensitive idiopathic hypertension.
Nineteen patients with normal renin idiopathic hypertension were arbitrarily classified as salt-sensitive or salt-resistant depending on whether their mean arterial pressure did or did not increase by 8% or more when sodium intake was increased. The responses of the two subsets and of five normal subjects to sodium intakes of 9, 109, and 249 mEq/day given for 7 days were as follows: The salt-se...
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ژورنال
عنوان ژورنال: Science
سال: 1966
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.151.3711.709