STUDYING THE SUB-CHRONIC TOXICITY OF DRY EXTRACT OF YELLOW TEA LEAVES (CAMELLIA HAKODAE NINH)
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Abstract
The research examines the safety of dry extract of Yellow tea leaVes (Camellia hakodae Ninh). Objectives: Studying the sub-chronic toxicity of dry extract of Yellow tea leaVes Camellia hakodae Ninh (CKL-THV) in rat. Subjects and methods: EValuate sub-chronic toxicity in rats by the guidelines of the Ministry of Health and the OECD. Research results: Continuous oral administration of CKL-THV to rats for 90 days at doses of 0.35 g/kg/24h and 1.05 g/kg/24h didn’t cause statistically significantly changed in body weight, the number of erythrocytes, leukocytes, hemoglobin concentration, AST, ALT, creatinin and total cholesterol. In addition, CKL-THV did’t cause any change in histology of liVer and kidney of experimented rats. Conclusion: CKL-THV was safe in sub-chronic toxicity studies in experimental mices and rats at the study doses.
Article Details
Keywords
The safety, sub-chronic toxicity, Yellow tea, Camellia hakodae
References
2. Malgorzata Kujawska, Malgorzata Ewertowska, Ewa Ignatowicz, et al. (2016), EValuation of Safety and Antioxidant ActiVity of Yellow Tea (Camellia sinensis) Extract for Application in Food, Journal of Medicinal Food, 19
(3), 330-336
3. Cục Khoa học công nghệ Và Đào tạo Bộ Y tế (2015), Quyết định số 141/QĐ-K2ĐT "Quyết định Về Việc ban hành tài liệu chuyên mÔn "Hướng dẫn thử nghiệm tiền lâm sàng Và lâm sàng thuốc đÔng y, thuốc từ dược liệu"
4. Organization of Economic Co-operation and Development - OECD (2001), The OECD Guideline for Testing of Chemicals: Acute Oral Toxicity—Acute Toxic Class Method.
5. World Health Organization (2000), Working group on the safety and efficacy of herbal medicine, 745-767.
6. Organization of Economic Co-operation and Development - OECD (2018), OECD Guidelines for the Testing of Chemicals: Repeated Dose 90- Day Oral Toxicity Study in Rodents.