منابع مشابه
Plasma norepinephrine in stroke.
Cardiac arrhythmias, myocardial necrosis and ECG abnormalities in stroke may result from abnormally high levels of sympathetic activity. To examine this possibility, plasma norepinephrine, epinephrine and dopamine were measured in 74 patients with cerebral infarction, 18 with transient ischemic attacks and 33 non-stroke controls. Mean norepinephrine, epinephrine and dopamine values (pg/ml) in c...
متن کاملPlasma Norepinephrine in Essential Hypertension
Of 32 studies comparing plasma norepinephrine concentrations in hypertensive and normotensive groups, 28 (88%) reported higher levels in the hypertensive group. However, only 13 (41%) of the studies reported statistically significant hypertensive-nonnotensive differences in norepinephrine, leading the present attempt to identify factors differentiating "positive" studies (those reporting signif...
متن کاملPlasma norepinephrine variations with dietary sodium intake.
Plasma catecholamine and renin activity levels were measured across a range of dietary sodium intakes (10--300 mEq/day) in 20 normal male volunteers. Supine plasma norepinephrine levels presented a triphasic pattern in relation to urine sodium, whereas epinephrine levels were not significantly altered by sodium intake, and renin showed the well-known hyperbolic relationship to urine sodium excr...
متن کاملPlasma norepinephrine during stress in essential hypertension.
Comparative studies of plasma norepinephrine in patients with essential hypertension and in normotensive controls have consistently reported higher mean resting levels of norepinephrine in the hypertensive groups, but the hypertensive-normotensive differences have often been small and, in about three-fifths of the studies, not statistically significant. The author reviewed the medical literatur...
متن کاملPlasma l-[3H]norepinephrine, d-[14C]norepinephrine, and d,l-[3H]isoproterenol kinetics in essential hypertension.
We infused tracer-labeled l-[3H]-norepinephrine, d-[14C]norepinephrine, and d,l-[3H]-isoproterenol simultaneously into patients with essential hypertension and into normotensive control subjects, in order to determine whether abnormalities in the disappearance kinetics of these substances characterized the hypertensive patients. The mean preinfusion venous plasma norepinephrine concentration wa...
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ژورنال
عنوان ژورنال: Clinical Cardiology
سال: 1995
ISSN: 0160-9289,1932-8737
DOI: 10.1002/clc.4960181304