Saleem Uzma, Ahmad Bashir, Ahmad Mobasher, Erum Alia, Hussain Khalid, Irfan Bukhari Nadeem
a University College of Pharmacy, University of the Punjab , Lahore , Pakistan .
b College of Pharmacy, GCU , Faisalabad , Pakistan , and.
Drug Chem Toxicol. 2016;39(2):233-7. doi: 10.3109/01480545.2015.1092040. Epub 2015 Oct 9.
To evaluate acute toxic effects of Euphorbia helioscopia in order to assure the safety and usefulness of herbal remedy.
The Organization for Economic Cooperation and Development (OECD) for chemical testing guidelines No. 425 for acute oral toxicity testing were followed in this study. Mice were divided into three groups (n = 5). Group I served as control. Groups II and III were administered methanol extract of E. helioscopia leaves and latex orally at dose of 2000 mg/kg, respectively. Then, all the animals were observed for two weeks. Blood sampling was done by cardiac puncture after 14 days from each group for biochemical analysis. Histopathology was performed to find out any microscopic lesion in vital organs.
LD50 was found greater than 2000 mg/kg. There was decrease in cholesterol, triglycerides, LDL and VLDL levels of latex and leaves with methanol extract-treated animals, with respect to control indicating plant's hypolipidemic effect. On macroscopic examination, no lesions were found on vital organs, such as liver, heart and kidney; and normal architecture was observed on microscopic examination.
On the basis of results, it was concluded that methanol extract of E. helioscopia leaves and latex were devoid of toxic effects in acute toxicity study.
评估泽漆的急性毒性作用,以确保草药疗法的安全性和有效性。
本研究遵循经济合作与发展组织(OECD)化学测试指南第425号进行急性经口毒性试验。将小鼠分为三组(n = 5)。第一组作为对照组。第二组和第三组分别以2000 mg/kg的剂量经口给予泽漆叶和乳汁的甲醇提取物。然后,对所有动物进行两周的观察。每组在14天后通过心脏穿刺采血进行生化分析。进行组织病理学检查以发现重要器官的任何微观病变。
半数致死量(LD50)大于2000 mg/kg。与对照组相比,用甲醇提取物处理的动物,其乳汁和叶子组的胆固醇、甘油三酯、低密度脂蛋白(LDL)和极低密度脂蛋白(VLDL)水平降低,表明该植物具有降血脂作用。在宏观检查中,未在肝脏、心脏和肾脏等重要器官发现病变;在微观检查中观察到正常结构。
根据结果得出结论,在急性毒性研究中,泽漆叶和乳汁的甲醇提取物没有毒性作用。