Sensitivity to catecholamines and histamine in the trained and in the untrained human organism and sensitivity changes during digestion.

European Journal of Applied Physiology and Occupational Physiology
G Pavlik, R Frenkl

Abstract

Blood pressure and heart rate responses elicited by norepinephrine, epinephrine and histamine were compared before and after duodenal acidification in 27 trained and untrained young healthy men. Before acidification trained subjects showed a lower sensitivity to norepinephrine and histamine and a slightly lower one to epinephrine. In order to explain these phenomena physical training was supposed to affect alpha, respectively beta adrenergic responsivity in a dissimilar manner. This suggestion was confirmed by the isoproterenol studies, too. Duodenal acidification decreased the catecholamine-induced pressor responses. Depressor responses to histamine did not change in the untrained subjects, whereas they increased in the trained group. Thus, during digestion the histamine-induced depressor responses of trained subjects tended to approach that of untrained people.

References

Jan 1, 1973·Perspectives in Biology and Medicine·R P Ahlquist
Feb 1, 1974·Acta Physiologica Scandinavica·H BjurstedtG Tydén
Dec 1, 1970·Scandinavian Journal of Clinical and Laboratory Investigation·J HäggendalB Saltin

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Citations

Dec 6, 1976·European Journal of Applied Physiology and Occupational Physiology·G PavlikR Frenkl
Jan 1, 1984·European Journal of Applied Physiology and Occupational Physiology·M LehmannJ Keul
Apr 1, 1986·Acta Physiologica Scandinavica·J SvedenhagP Hjemdahl
Apr 1, 1976·The Journal of Pharmacy and Pharmacology·B A Callingham, M A Barrand
Jan 1, 1987·European Journal of Applied Physiology and Occupational Physiology·N F GordonM P Schwellnus
Mar 1, 1985·Progress in Cardiovascular Diseases·T F Schaible, J Scheuer
Dec 1, 1984·The American Journal of Cardiology·W H MartinA A Ehsani
Aug 19, 2003·The Anatomical Record. Part A, Discoveries in Molecular, Cellular, and Evolutionary Biology·Natalia HoshinoTakeyasu Maeda
Aug 1, 1996·The Anatomical Record·M HilligesO Johansson

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