Preclinical Safety of the Root Extract ofPolygala tenuifoliaWilldenow in Sprague-Dawley Rats and Beagle Dogs

Author:

Shin Ki Young12,Won Beom Young1,Ha Hyun Jee1,Yun Yeo Sang1,Lee Hyung Gun1

Affiliation:

1. Research & Development Center, Braintropia Co. Ltd., Anyang-si, Gyeonggi-do 431-716, Republic of Korea

2. Department of Microbiology, College of Natural Science, Dankook University, Cheonan-si, Chungnam 330-714, Republic of Korea

Abstract

The root ofPolygala tenuifoliaWilldenow has been used for the treatment of insomnia, depression, and amnesia. However, the toxicological properties of the herb have been overlooked, because it has been used for a long time for various purposes. In this study, we evaluated the preclinical safety of the root extract in rats and beagle dogs. First, the acute oral toxicity was tested in both rats and dogs. In the rats, only one female of 2 g/kg died, but no treatment-related death or clinical and gross findings were observed after the administration. No toxicological changes or mortalities related to the test substance were also observed after the administration in the dogs. Although vomiting, discoloration, or hemorrhage was found in some dogs, there were no serious abnormalities. Second, the subchronic toxicity was investigated in the rats. Two animals were found dead in the female group of 1,000 mg/kg/day, but there were no abnormal findings associated with the test substance. There also were no adverse effects on the clinical signs, body weight, and hematological and biochemical findings. Therefore, our results showed that the acute or subchronic toxicity of the root extract ofPolygala tenuifoliamight not be toxic to rats and dogs.

Funder

Non-Clinical Research Center, Biomedical Research Institute, Seoul National University Hospital

Publisher

Hindawi Limited

Subject

Complementary and alternative medicine

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