蛙皮素与体温调节

Bombesin and Thermoregulation

蛙皮素(bombesin,BN)是从蛙皮肤提取的含有N-末端焦谷氨酸的14肽,应用放射免疫分析和免疫组织化学方法证实在哺乳动物的胃肠和脑内大量存在,具有广泛的生理作用。本文主要就其分布和在体温调节方面的作用及其机制作一简要阐述。一、蛙皮素的来源和分布蛙皮素,又称羚蟾素和羚蟾肽,是由Anastasi等首先从两种欧洲蛙,即羚蟾(Bombina)和产婆蟾(Alytes)

Bombesin in central nervous system (CNS) is closely related to thermoregulation. Injection of bombesin into some parts of brain caused hypothermia significantly, especially in POAH, and this effect can be enhanced by the cold ambient temperature. The mechanism might be suppress heat production and disrupt the regulatory function of thermoregulatory centre. Morever, other neuropeptides, food deprivation and lesion of VMH (ventromedial hypothalamus) affected the action of bombesin.