| Literature DB >> 1975530 |
A A Maki1, M M Beck, E W Gleaves, J A DeShazer, K M Eskridge.
Abstract
1. At thermoneutrality (28 degrees C), CSF Na+:Ca2+ in hens was 61.66; under thermal stress (39 degrees C), it changed to 59.38 (30 min), 62.58 (3 hr), and 52.44 (10 hr); no change in ratio occurred at 15 degrees C. 2. ICV Ouabain and/or EGTA increased body temperature (TR) but not respiration rate (RR) at 39 degrees C. 3. At 28 degrees C, Ouabain decreased, and EGTA increased, TR and RR. 4. Ca2+ may be more critical than Na+ in thermoregulation. 5. Heat stress appears to stimulate Na+-transport mechanisms other than Na+-ATPase. 6. RR appears to be a function of TR, not of ion balance.Entities:
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Year: 1990 PMID： 1975530 DOI： 10.1016/0300-9629(90)90054-v
Source DB: PubMed Journal: Comp Biochem Physiol A Comp Physiol ISSN： 0300-9629