Journal of Applied Physiology AJP: Gastrointestinal and Liver Physiology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 45: 705-708, 1978;
8750-7587/78 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Braganza, A.
Right arrow Articles by Wilson, W. O.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Braganza, A.
Right arrow Articles by Wilson, W. O.

Journal of Applied Physiology, Vol 45, Issue 5 705-708, Copyright © 1978 by American Physiological Society

ARTICLES

Elevated temperature effects on catecholamines and serotonin in brains of male Japanese quail

A. Braganza and W. O. Wilson

Endogenous level and turnover of brain norepinephrine (NE), epinephrine (E), dopamine (DA), and serotonin (5-HT) in male Japanese quail were determined after acute (6 h) and chronic (5 wk) exposure to thermal (34 degrees C) and cyclic temperature (10--34 degrees C) stress. alpha-Methyl-p-tyrosine (alpha-MT) and p-chlorophenylalanine (PCPA) were used to study the turnover of the monoamine levels. The differences between the monoamine levels of drug-treated birds and control (22 degrees C) birds were regarded as changes in turnover. High ambient temperature (34 degrees C) stress for 6 h increased brain NE turnover. However, chronic exposure (5 wk) to 34 degrees C, and to cyclic temperatures (10--34 degrees C), did not increase turnover of brain NE. Also, acute and chronic heat exposures did not significantly change E turnover. High acute temperature stress had no effect on brain DA turnover, although chronic exposure of birds to 34 and 10--34 degrees C resulted in a retarded turnover. The central 5-HT turnovers increased when birds were subjected to acute 34 degrees C stress. Five weeks of exposure to 34 and 10--34 degrees C caused declines in 5-HT turnovers. Thus, the results indicate that NE and 5-HT turnovers increase during acute thermal exposure, but acclimation to thermal stress for 5 wk reduces the turnover of brain NE, 5-HT, and DA.


This article has been cited by other articles:


Home page
 Poult. Sci.Home page
I. Rozenboim, E. Tako, O. Gal-Garber, J. A. Proudman, and Z. Uni
The Effect of Heat Stress on Ovarian Function of Laying Hens
Poult. Sci., August 1, 2007; 86(8): 1760 - 1765.
[Abstract] [Full Text] [PDF]

Home page
 Biol. Reprod.Home page
I. Rozenboim, N. Mobarky, R. Heiblum, Y. Chaiseha, S.W. Kang, I. Biran, A. Rosenstrauch, D. Sklan, and M.E. El Halawani
The Role of Prolactin in Reproductive Failure Associated with Heat Stress in the Domestic Turkey
Biol Reprod, October 1, 2004; 71(4): 1208 - 1213.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online