EFFECT OF WARM REARING ON TEMPERATURE REGULATION IN RESTING AND EXERCISING RATS

被引：6

作者：

CAPUTA, M

KAMARI, A

机构：

[1] N. Copernicus University, Institute of Biology, Department of Animal Physiology

来源：

JOURNAL OF THERMAL BIOLOGY | 1991年 / 16卷 / 06期

关键词：

WARM REARING; TEMPERATURE REGULATION; EXERCISE; HEAT STRESS; SELECTIVE BRAIN COOLING; RATS;

D O I：

10.1016/0306-4565(91)90063-8

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

1. Hypothalamic and rectal temperatures were recorded in 8 warm-reared (wr) and in 12 warm-acclimated control rats during resting in the heat and during 30 min running under thermoneutral conditions. 2. Brain and body temperatures of wr rats were significantly higher (P < 0.001) than control rats, both in normothermia as well as in hyperthermia; at rest, and also during exercise. 3. Warm-reared rats were more tolerant to heat. 4. During normothermia a weak selective brain cooling was present in control but absent in wr rats. During hyperthermia, however, the cooling intensified in control and occurred in wr rats. 5. The main strategy of adaptation to heat in wr rats is an upward resetting of the temperature set-point and increased passivity.

引用

页码：357 / 361

页数：5

共 17 条

[1] PLASTICITY IN BRAIN-DEVELOPMENT [J].