CSF ION COMPOSITION AND MANIPULATION DURING THERMOREGULATION IN AN AVIAN SPECIES, GALLUS-DOMESTICUS

被引:7
|
作者
MAKI, AA
BECK, MM
GLEAVES, EW
DESHAZER, JA
ESKRIDGE, KM
机构
[1] UNIV NEBRASKA,DEPT ANIM SCI,LINCOLN,NE 68583
[2] UNIV NEBRASKA,DEPT AGR ENGN,LINCOLN,NE 68583
[3] UNIV NEBRASKA,DEPT BIOMETRY,LINCOLN,NE 68583
来源
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-PHYSIOLOGY | 1990年 / 96卷 / 01期
关键词
D O I
10.1016/0300-9629(90)90054-V
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
1. 1. At thermoneutrality (28°C), CSF Na+: Ca2+ in hens was 61.66; under thermal stress (39°C), it changed to 59.38 (30 min), 62.58 (3 hr), and 52.44 (10 hr); no change in ratio occurred at 15°C. 2. 2. ICV Ouabain and/or EGTA increased body temperature (TR) but not respiration rate (RR) at 39°C. 3. 3. A 28°C, Ouabain decreased, and EGTA increased, TR and RR. 4. 4. Ca2+ may be more critical than Na+ in thermoregulation. 5. 5. Heat stress appears to stimulate Na+-transport mechanisms other than Na+-ATPase. 6. 6. RR apppears to be a function of TR, not of ion balance. © 1990.
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页码:135 / 140
页数:6
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