Biochemical Evaluation of Sympathetic Nerve Tone in Essential Hypertension
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چکیده
منابع مشابه
Sympathetic Nerve Stimulation Under Elevated Tone Conditions
The influence ofan increase in vascular tone on responses to sympathetic nerve stimulation and the receptors mediating these responses were investigated in the pulmonary vascular bed of the cat. Under conditions of controlled blood flow and constant left atrial pressure, stimulation of the sympathetic nerves to the lung elicited a biphasic response characterized by an initial increase in lobar ...
متن کاملNeural sympathetic activity in essential hypertension.
Neural Sympathetic Activity in Essential Hypertension To the Editor: We read with great interest the article by Schlaich et al1 dealing with the issue of sympathetic augmentation in hypertension. In 1993, we demonstrated that neural sympathetic activity predominance is registered in essential hypertensive patients.2 These findings were supported by the overwhelming circulating noradrenaline (NA...
متن کاملIncreased sympathetic nerve activity in renovascular hypertension.
BACKGROUND Increased sympathetic nerve activity may contribute to the progression of renovascular hypertension. Because previous results have been inconclusive, we investigated whether renovascular hypertensives show increased total and regional sympathetic nerve activity. METHODS AND RESULTS Sixty-five patients underwent renal angiography and measurements of plasma renin activity and angiote...
متن کاملBaroreflex control of sympathetic nerve activity in essential and secondary hypertension.
Studies performed in experimental animals and in humans have documented that high blood pressure markedly impairs baroreceptor control of heart rate. Whether a similar impairment also characterizes baroreceptor control of sympathetic activity modulating peripheral vasomotor tone is still unknown. In 28 untreated essential hypertensive subjects [14 of moderate and 14 of more severe degree, age 5...
متن کاملAge-related changes in muscle sympathetic nerve activity in essential hypertension.
To investigate the pathophysiological role of the sympathetic nervous system in essential hypertension, this study recorded the muscle sympathetic nerve activity (MSNA) of the tibial nerve and examined the age-related changes in patients with essential hypertension and in normotensive persons. There were 43 normotensive subjects (16-69 years old) and 63 patients with essential hypertension (18-...
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ژورنال
عنوان ژورنال: Japanese Circulation Journal
سال: 1975
ISSN: 0047-1828,1347-4839
DOI: 10.1253/jcj.39.583