Torpor shortens the period of Siberian hamster circadian rhythms.
Torpor shortens the period of Siberian hamster circadian rhythms.
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麻木会缩短西伯利亚仓鼠的昼夜节律。
DOI：
10.1152/ajpregu.1993.265.4.r951
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Zucker,I
中科院分区：
文献类型：
--
作者：
Thomas,EM;Jewett,ME;Zucker,I
我们研究了环境温度和体温(Ta和Tb)对去性腺雄性西伯利亚仓鼠昼夜节律的影响。在Ta为13℃时，进入麻木状态(Tb<；30℃)的仓鼠的昼夜节律周期(Tau S)明显短于非麻木状态仓鼠(24.17+/-0.05vs.24.33+/-0.04h)。恒温仓鼠的tau S不受Ta变化的影响。结核病的短期下降，而不是Ta的变化，似乎会影响Ta。接触活动轮可以在短时间内抑制麻木的表现，并与身体质量的显著增加有关。转轮活动可以掩盖或阻止特定的短日反应。
We investigated the influence of ambient and body temperature (Ta and Tb) on circadian rhythms of gonadectomized male Siberian hamsters. Animals that entered torpor (Tb < 30 degrees C) had significantly shorter circadian periods (tau s) than did nontorpid hamsters at a Ta of 13 degrees C (24.17 +/- 0.05 vs. 24.33 +/- 0.04 h). The tau s of homeothermic hamsters were not affected by Ta change. Short-term decreases in Tb, rather than changes in Ta, appear to affect tau. Access to activity wheels inhibited expression of torpor in short daylengths and was associated with significant increases in body mass. Running wheel activity can mask or block specific short-day responses.