Effects of intra-amygdaloid TRH injections on motor activity and dominant-submissive behavior in rats competing for water.

Acta physiologica Polonica Pub Date : 1990-01-01
O Puciłowski, E Trzaskowska, E Jankowska, W Kostowski, G Kupryszewski
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Abstract

The effect of thyrotropin releasing hormone (TRH) microinjections into the central amygdala (10 g in 0.5 1 into each side) on locomotor activity water intake and dominance behavior in a water competition test was investigated in male Wistar rats. TRH increased the general motility without altering the number of rearings. Intra-amygdaloid TRH injection to submissive rats resulted in a loss of subordinate position in these animals in the water competition test. A tendency to decrease dominance followed the injection of the peptide to the dominant animals. The effect of TRH in the dominance test does not appear to involve influence on the thirst drive as microinjection of the peptide did not change significantly the water consumption in thirsty rats.

杏仁核内TRH注射对水竞争大鼠运动活动和支配-服从行为的影响。
研究了雄性Wistar大鼠中央杏仁核微量注射促甲状腺素释放激素(TRH) (10 g,每侧0.5 1次)对运动活动、饮水量和优势行为的影响。TRH在不改变生育数量的情况下增加了一般运动能力。给服从大鼠注射杏仁核内TRH,使这些动物在水竞争试验中失去从属地位。向优势动物注射多肽后,优势动物有降低优势的趋势。在优势性测试中,TRH的作用似乎不涉及对口渴驱动的影响,因为微注射TRH肽并没有显著改变口渴大鼠的饮水量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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