Novel effect of berberine on thermoregulation in mice model induced by hot and cold environmental stimulation.

Novel effect of berberine on thermoregulation in mice model induced by hot and cold environmental stimulation.
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小檗碱对冷热环境刺激小鼠模型体温调节的新作用

DOI:
10.1371/journal.pone.0054234
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Du LJ
Du LJ
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Jiang JF;Wang YG;Hu J;Lei F;Kheir MM;Wang XP;Chai YS;Yuan ZY;Lu X;Xing DM;Du F;Du LJ

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本研究的目的是评估小檗碱(BBR)对暴露于热(40°C)和冷(4°C)环境条件下小鼠的体温调节作用。四组小鼠分别给予三种不同剂量的BBR(0.2、0.4、0.8 mg/kg)和生理盐水(对照组)。在室温下,我们最大剂量的BBR (0.8 mg/kg)可以降低正常小鼠的直肠温度(Tc)。在高温条件下,BBR能拮抗小鼠核心体温升高,抑制HSP70和TNFα的表达;相反,在寒冷条件下,BBR可以拮抗核心体温下降,增强TRPM8的表达。本研究表明BBR具有维持热平衡的双重能力,这与HSP70、TNFα和TRPM8的调控有很大关系。
The purpose of this study was to assess the effects of berberine (BBR) on thermoregulation in mice exposed to hot (40°C) and cold (4°C) environmental conditions. Four groups of mice were assembled with three different dosages of BBR (0.2, 0.4, and 0.8 mg/kg) and normal saline (control). In room temperature, our largest dosage of BBR (0.8 mg/kg) can reduce rectal temperatures (Tc) of normal mice. In hot conditions, BBR can antagonize the increasing core body temperature and inhibit the expression of HSP70 and TNFα in mice; conversely, in cold conditions, BBR can antagonize the decreasing core body temperature and enhance the expression of TRPM8. This study demonstrates the dual ability of BBR in maintaining thermal balance, which is of great relevance to the regulation of HSP70, TNFα and TRPM8.
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