目的：研究柿叶提取物的急性毒性及遗传毒性。方法：对柿叶提取物进行急性经口毒性测定，并通过小鼠骨髓微核实验及小鼠精子畸形实验对其遗传毒性进行评价。结果：小鼠柿叶提取物的最大耐受剂量大于597.2 g生药/kg，为临床成人用药量的2150倍；小鼠骨髓细胞微核实验和精子畸形实验结果均显示柿叶提取物3个剂量组的微核率、精子畸形率与阳性对照组比较均有显著性差异（P<0.01）。结论：在本实验条件下，柿叶提取物对小鼠口服的毒性较小，未见明显的遗传毒性。

This study was aimed to observe the acute oral toxicity and genetic toxicity of Diospyros kaki Extract. Acute oral toxicity test was performed in mice. The genetic toxicity of Diospyros kaki Extract was evaluated by bone marrow micronucleus and sperm shape abnormality test (Diospyros kaki Extract was administered to mice at the dosage of 0.00, 0.25, 5.00, and 10.0 g/kg BW). The results showed that the acute oral maximum-tolerated dose of Diospyros kaki Extract was greater than 597.2 g/kg, which was 2150 times of the clinical dosage. There were significant statistical differences between each dosage group and positive control group (P < 0.01) in bone marrow micronucleus and sperm shape experiment. It was concluded that the Diospyros kaki Extract was classified as non-toxic substance. There was no genetic toxicity produced.

科学技术部国家“十一五”科技重大专项（2009ZX09103-305）：治疗缺血性中风新药BYS-HWL01的研究，负责人：李楚源。