Abstract

오미자(Schizandra chinensis Baillon., Schisandrae Semen)의 열매는 한국을 포함한 아시아 지역에서 오랫동안 전통 의약제로 광범위하게 사용되어 왔다. 식물에서 분리된 정유(essential oils)는 다양한 약리효능을 지니고 있지만, 오미자 열매에서 추출한 정유의 약리학적 기전은 밝혀진 바 없다. 본 연구에서는 오미자 종자의 정유(Schisandrae Semen essential oil, SSeo)에 대한 안정성을 확보하기 위하여 단회경구투여 독성시험을 ICR 마우스를 대상으로 실시하였다. SSeo은 ICR mice에 5,000 mg/kg 농도로 경구 투여하였으며, 14일 후 희생시켰다. SSeo 투여 후 치사율, 임상 증상, 체중 및 부검 소견 상의 유의적인 변화는 관찰되지 않았다. 또한 각 장기의 무게, 혈액학적 및 혈청학적 임상 화학적 지표에도 총 bilirubin량을 제외한 유의적인 변화는 관찰할 수 없었다. 따라서 SSeo 단회 투여에 따른 치사량은 5,000 mg/kg 이상일 것으로 추정되어 급성 독성 측면에서 유해성이 없다는 의미를 지니며, 경구투여에 따른 어떤 부작용도 나타내지 않았음을 의미한다. Essential oils extracted or purified from various plants have shown various beneficial effects. Seed parts of Schizandra chinensis Baillon (Schisandrae Semen) have been used as a traditional medicine for thousands of years in parts of Asia, including Korea, China, and Japan. However, the pharmacological mechanisms of essential oils purified from S. fructus (S. chinensis Baillon) remain largely unresolved. The aim of this study was to investigate the safety of Schisandrae Semen essential oil (SSeo) by a single- dose toxicity study in mice. SSeo was orally administered at a dose of 5,000 mg/kg in ICR mice. All animals were sacrificed after 14 days of treatment. After a single administration, mortality, clinical signs, body weight changes, and gross pathological findings were observed for 14 days. We also measured parameters of organ weight, clinical chemistry, and hematology. No toxicological change related to the test substance or mortality was observed after administration of a single oral dose of SSeo. There were no adverse effects on clinical signs, body weight, or organ weight and no gross pathological findings in any treatment group. The clinical chemistry and hematological parameters were within the normal ranges except total bilirubin. Therefore, the approximate lethal dose for oral administration of SSeo in mice was considered to be over 5,000 mg/kg. The results on the single-dose toxicity of SSeo indicate that it is not possible to reach oral dose levels related to death or dose levels with any harmful side effects.

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