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Horm Metab Res 1982; 14(11): 606-610
DOI: 10.1055/s-2007-1019093
© Georg Thieme Verlag, Stuttgart · New York

Propranolol Induced Changes in Plasma Catecholamine, Corticosterone, T4, T3 and Prolactin Levels in the Pigeon

R. Hissa, J. C. George1 , T. M. John1 , R. J. Etches2
  • Department of Zoology, Zoophysiological Laboratory, University of Oulu, Finland
  • 1Department of Zoology, University of Guelph, Guelph, Ontario, Canada
  • 2Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada
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Publication History

1981

1982

Publication Date:
14 March 2008 (online)

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Summary

Concentrations of plasma noradrenaline, adrenaline, corticosterone, thyroxine (T4), triiodothyronine (T3) and prolactin were measured in pigeons at 22°C after intravenous injection of propranolol (1 mg/kg). An increase in catecholamines occurredin 5 or 15 min. T4, T3 and prolactin increased within 30 and 60 min after injection, however, after correction for the differences in plasma protein content, only the concentration of prolactin was significantly above the control values. It is concluded that the impairment of heat production produced by propranolol in birds is not primarily induced by inhibition of the secretion or release of these hormones.

Key-Words:

Propranolol - T 4 - T 3 - Prolactin - Catecholamines - Corticosterone