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


     

J Appl Physiol 51: 1349-1354, 1981;
8750-7587/81 $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 Gordon, C. J.
Right arrow Articles by Heath, J. E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Gordon, C. J.
Right arrow Articles by Heath, J. E.

Journal of Applied Physiology, Vol 51, Issue 5 1349-1354, Copyright © 1981 by American Physiological Society

ARTICLES

Rapid brain cooling in the free-running hamster Mesocricetus auratus

C. J. Gordon, A. H. Rezvani, M. E. Fruin, S. Trautwein and J. E. Heath

A thermocouple reentrant tube was stereotaxically implanted in the rostral brain stem of the golden hamster, Mesocricetus auratus. Brain temperature was continuously recorded while the hamster was permitted volitional running on an activity wheel. There was an immediate decrease in brain temperature at the start of running activity, reaching a mean of 0.49 degrees C below the prerunning level. Spontaneous or forced cessation of running activity was associated with a rapid recovery of brain temperature. The time course of brain cooling during exercise greatly differed from the exponential decay of brain temperature in hyperthermic and dead animals. Air flow through the nose may contribute to the maintenance of a low brain temperature because nasal blockade promotes an increase in brain temperature. Below an ambient temperature of 33 degrees C, the resting hamster maintains its brain temperature below deep-body (abdominal) temperature. Vinyl acetate casts of the arterial and venous systems revealed several potential sites for heat exchange that might account for brain cooling under resting and exercising conditions.


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
R. Arieli and Y. Moskovitz
Humidity does not affect central nervous system oxygen toxicity
J Appl Physiol, September 1, 2001; 91(3): 1327 - 1333.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
S. K. Maloney, A. Fuller, G. Mitchell, and D. Mitchell
Rectal temperature measurement results in artifactual evidence of selective brain cooling
Am J Physiol Regulatory Integrative Comp Physiol, July 1, 2001; 281(1): R108 - R114.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
X. Song and B. Rusak
Acute effects of light on body temperature and activity in Syrian hamsters: influence of circadian phase
Am J Physiol Regulatory Integrative Comp Physiol, May 1, 2000; 278(5): R1369 - R1380.
[Abstract] [Full Text] [PDF]


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