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[Elevated levels of atrial natriuretic peptide and plasma catecholamines in arterial hypertension--indications for an interaction].
Neyses, Ludwig; Nitsch, J.; Biegel, T. et al.
1988In Zeitschrift fur Kardiologie, 77 (7), p. 407-12
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Keywords :
Aged; Atrial Natriuretic Factor/blood; Blood Pressure; Cardiac Output; Epinephrine/blood; Female; Humans; Hypertension/blood; Male; Middle Aged; Norepinephrine/blood; Vasoconstriction
Abstract :
[en] In this study plasma levels of atrial natriuretic peptide and of the catecholamines epinephrine and norepinephrine were investigated in hypertensive patients (HT) (n = 30). 22 normotensive patients (NT) served as controls. Hypertensives showed an elevated ANP-level in comparison with controls (46.8 +/- 3.3 vs. 36.8 +/- 3.3 pg/ml, M +/- SEM, p less than 0.01). When patients with myocardial infarction or with reduced ejection fraction were excluded, the same relation was demonstrated (49.3 +/- 3.2 vs. 33.6 +/- 2.0 pg/ml, p less than 0.01). Plasma norepinephrine was 230.8 +/- 52.3 pg/ml in HT compared with 138.0 +/- 19.6 pg/ml in NT (p less than 0.05). Epinephrine was 70.8 +/- 10.5 vs. 54.8 +/- 9.7 pg/ml in HT and NT. To exclude an increased left ventricular enddiastolic - and hence left atrial - pressure as the cause for the elevation of ANP and norepinephrine, HT and NT were matched for the same levels of enddiastolic pressure (LVEDP) (n = 18). For each level of LVEDP ANP was higher in HT than in NT (p less than 0.01). The same held true for norepinephrine (p less than 0.05) and to a lesser extent for epinephrine (p = 0.09). Our results demonstrate that patients with essential hypertension exhibit markedly elevated levels for ANP and catecholamines which is not due to myocardial failure. We propose that the increased secretion of the vasodilatory hormone ANP serves as counterregulation against the vasoconstrictor norepinephrine. The endocrine function of the heart may play a pivotal role in the modulation of sympathetic activity.
Disciplines :
Cardiovascular & respiratory systems
Author, co-author :
Neyses, Ludwig ;  University of Luxembourg > Research Office
Nitsch, J.
Biegel, T.
Heinrichs, S.
Nissen, H. D.
Luderitz, B.
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Title :
[Elevated levels of atrial natriuretic peptide and plasma catecholamines in arterial hypertension--indications for an interaction].
Alternative titles :
[en] Erhohung des atrialen natriuretischen Peptids und der Plasmakatecholamine bei arterieller Hypertonie--Hinweise auf eine Wechselwirkung*).
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Journal title :
Zeitschrift fur Kardiologie
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Peer reviewed :
Peer reviewed
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