[Responses of the pressor and depressor regulatory systems to high sodium intake in borderline arterial hypertension]. 1991

I Sh Shterental', and K Iu Nikolaev, and V M Merzhievskaia, and N B Pikovskaia, and V G Snegurova, and O A Podkolodnaia, and Iu N Skvortsova, and M S Pekker

A total of 25 healthy individuals and 48 borderline hypertensives aged 22-56 years were examined. The healthy subjects having a salt load showed elevated blood histamine concentrations and an unchanged vascular response to histamine, and reduced plasma renin activity. The patients having a salt load displayed high histamine levels, sharply decreased vascular response to histamine, and undepressed plasma renin activity. It is concluded that the pressor mechanisms responsible for controlling vascular tone are more active than the depressor ones during the salt load in patients with borderline hypertension. The humoral response of the patients to a salt load was impaired with elevated plasma cortisol concentrations, which was not followed by sodium retention in the body.

UI MeSH Term Description Entries
D006973 Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more. Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D012083 Renin A highly specific (Leu-Leu) endopeptidase that generates ANGIOTENSIN I from its precursor ANGIOTENSINOGEN, leading to a cascade of reactions which elevate BLOOD PRESSURE and increase sodium retention by the kidney in the RENIN-ANGIOTENSIN SYSTEM. The enzyme was formerly listed as EC 3.4.99.19. Angiotensin-Forming Enzyme,Angiotensinogenase,Big Renin,Cryorenin,Inactive Renin,Pre-Prorenin,Preprorenin,Prorenin,Angiotensin Forming Enzyme,Pre Prorenin,Renin, Big,Renin, Inactive
D006632 Histamine An amine derived by enzymatic decarboxylation of HISTIDINE. It is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter. Ceplene,Histamine Dihydrochloride,Histamine Hydrochloride,Peremin
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012982 Sodium, Dietary Sodium or sodium compounds used in foods or as a food. The most frequently used compounds are sodium chloride or sodium glutamate. Dietary Sodium
D014661 Vasoconstriction The physiological narrowing of BLOOD VESSELS by contraction of the VASCULAR SMOOTH MUSCLE. Vasoconstrictions

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