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http://dx.doi.org/10.6116/kjh.2016.31.6.63.

Effects study of Aconiti Lateralis Radix Preparata extract on the regulation of heat and cold in PTU-induced hypothyroidism rats  

Hwang, Min Sub (College of Korean Medicine, Dongguk University)
Hwang, Ji Hye (Korean Medicine R&D Center, Dongguk University)
Kang, Seok Yong (College of Korean Medicine, Dongguk University)
Kang, An Na (College of Korean Medicine, Dongguk University)
Roh, Hyo Sun (College of Korean Medicine, Dongguk University)
Park, Yong-Ki (College of Korean Medicine, Dongguk University)
Publication Information
The Korea Journal of Herbology / v.31, no.6, 2016 , pp. 63-71 More about this Journal
Abstract
Objective : To suggest a scientific evidence of Aconitum carmichaeli Debx. (Aconiti Lateralis Radix Preparata: ALRP) as one of cooling and heating medicines on the regulation of body temperature, we investigated the effects of ALRP water extract on hypothyroidism. Methods : Hypothyroidism was induced by intradermal injection with PTU for 4 weeks in SD rats. ALRP extract or L-thyroxine as a control drug was orally administrated for 2 weeks with PTU injection in rats. The physiological and serological parameters were measured in rats. The histological change of thyroid tissues was observed by H&E staining, and also the expression of thermo-regulating proteins was determined by Western blot in dorsal root ganglia and brain tissues of rats. Results : The administration of ALRP extract in PTU-induced hypothyroidism rats was significantly increased body temperature, but did not changes on body weight, food and water intake. ALRP extract did not effect on the levels of TSH and T4 in the hypothyroidism rats. ALRP extract significantly decreased the levels of GPT, glucose, HDL-cholesterol, LDL-cholesterol, and total cholesterol in the hypothyroidism rats. In histological observation, the enlarged epithelium and atrophic follicles with higher concentration of follicular cells on hypothyroidism were improved by ALRP extract. In addition, ALRP extract increased the expression of TRPV1 and TRPM8 ion channel proteins in hypothyroidism rats. Conclusion : These results indicate that ALRP extract can improve PTU-induced hypothyroidism through regulation of body temperature and lipid accumulation. The action mechanism of ALRP extract is related with body temperature control by thermoregulation with TRP ion channels.
Keywords
Aconitum carmichaeli Debx.; Aconiti Lateralis Radix Preparata; PTU; hypothyroidism; TRPV1; TRPM8;
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