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Effects of propranolol and pindolol on plasma ANP levels in humans at rest and during exercise.
Am J Physiol. 1989 Aug; 257(2 Pt 2):R259-64.AJ

Abstract

In attempt to elucidate whether the beta-adrenoceptor is involved in the control of atrial natriuretic peptide (ANP) secretion, plasma immunoreactive ANP level was measured at rest, in recumbent and upright positions, and during graded maximal ergocycle exercise in nine healthy male subjects (23 +/- 0.5 years of age) treated for 3 days with nonselective beta-blockers propranolol (150 mg/day) or pindolol (15 mg/day) or with placebo. The effects of beta-blockers, which differ by their hemodynamic actions at rest because of the intrinsic sympathomimetic activity of pindolol, were compared. Maximal O2 consumption (VO2max) during beta-blockade was not significantly different from the placebo value. Resting heart rate was not affected by pindolol treatment but was decreased with propranolol (-10 beats/min). Both beta-blockers caused a reduction in heart rate at all the exercise intensities. Mean blood pressure was not affected by beta-blockade at rest but was significantly reduced during exercise. During placebo treatment, plasma ANP increased in response to exercise intensities greater than 65% of VO2max. At 100% VO2max plasma ANP was nearly doubled (101.5 +/- 14 pg/ml) compared with the basal value in upright position (56.6 +/- 15 pg/ml). beta-Blockade caused a marked elevation in plasma ANP at all the levels of activity. Despite different hemodynamic responses to pindolol and propranolol, both beta-blockers produced similar increases in the basal level of plasma ANP. These rises were maintained in the course of exercise tests, and no significant difference was found between propranolol and pindolol. We conclude that beta-adrenoceptor mechanisms are not directly responsible for tonic and exercise-induced ANP secretion in humans.(

ABSTRACT

TRUNCATED AT 250 WORDS)

Authors+Show Affiliations

Département de Physiologie, Faculté de Médecine de Créteil, Institut National de la Santé, France.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Controlled Clinical Trial
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

2527473

Citation

Bouissou, P, et al. "Effects of Propranolol and Pindolol On Plasma ANP Levels in Humans at Rest and During Exercise." The American Journal of Physiology, vol. 257, no. 2 Pt 2, 1989, pp. R259-64.
Bouissou P, Galen FX, Richalet JP, et al. Effects of propranolol and pindolol on plasma ANP levels in humans at rest and during exercise. Am J Physiol. 1989;257(2 Pt 2):R259-64.
Bouissou, P., Galen, F. X., Richalet, J. P., Lartigue, M., Devaux, F., Dubray, C., & Atlan, G. (1989). Effects of propranolol and pindolol on plasma ANP levels in humans at rest and during exercise. The American Journal of Physiology, 257(2 Pt 2), R259-64.
Bouissou P, et al. Effects of Propranolol and Pindolol On Plasma ANP Levels in Humans at Rest and During Exercise. Am J Physiol. 1989;257(2 Pt 2):R259-64. PubMed PMID: 2527473.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of propranolol and pindolol on plasma ANP levels in humans at rest and during exercise. AU - Bouissou,P, AU - Galen,F X, AU - Richalet,J P, AU - Lartigue,M, AU - Devaux,F, AU - Dubray,C, AU - Atlan,G, PY - 1989/8/1/pubmed PY - 1989/8/1/medline PY - 1989/8/1/entrez SP - R259 EP - 64 JF - The American journal of physiology JO - Am J Physiol VL - 257 IS - 2 Pt 2 N2 - In attempt to elucidate whether the beta-adrenoceptor is involved in the control of atrial natriuretic peptide (ANP) secretion, plasma immunoreactive ANP level was measured at rest, in recumbent and upright positions, and during graded maximal ergocycle exercise in nine healthy male subjects (23 +/- 0.5 years of age) treated for 3 days with nonselective beta-blockers propranolol (150 mg/day) or pindolol (15 mg/day) or with placebo. The effects of beta-blockers, which differ by their hemodynamic actions at rest because of the intrinsic sympathomimetic activity of pindolol, were compared. Maximal O2 consumption (VO2max) during beta-blockade was not significantly different from the placebo value. Resting heart rate was not affected by pindolol treatment but was decreased with propranolol (-10 beats/min). Both beta-blockers caused a reduction in heart rate at all the exercise intensities. Mean blood pressure was not affected by beta-blockade at rest but was significantly reduced during exercise. During placebo treatment, plasma ANP increased in response to exercise intensities greater than 65% of VO2max. At 100% VO2max plasma ANP was nearly doubled (101.5 +/- 14 pg/ml) compared with the basal value in upright position (56.6 +/- 15 pg/ml). beta-Blockade caused a marked elevation in plasma ANP at all the levels of activity. Despite different hemodynamic responses to pindolol and propranolol, both beta-blockers produced similar increases in the basal level of plasma ANP. These rises were maintained in the course of exercise tests, and no significant difference was found between propranolol and pindolol. We conclude that beta-adrenoceptor mechanisms are not directly responsible for tonic and exercise-induced ANP secretion in humans.(ABSTRACT TRUNCATED AT 250 WORDS) SN - 0002-9513 UR - https://www.unboundmedicine.com/medline/citation/2527473/Effects_of_propranolol_and_pindolol_on_plasma_ANP_levels_in_humans_at_rest_and_during_exercise_ L2 - https://journals.physiology.org/doi/10.1152/ajpregu.1989.257.2.R259?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -