癌变·畸变·突变 ›› 1999, Vol. 11 ›› Issue (1): 44-045.doi: 10.3969/j.issn.1004-616x.1999.01.016

• 短篇报道 • 上一篇    下一篇

茶绿色素的致突变作用研究

徐德祥 王取南 孙美芳 魏凌珍 余素贞 王家骥   

  1. 安徽医科大学卫生毒理教研室 合肥 230032
  • 收稿日期:1998-02-05 修回日期:1998-06-10 出版日期:1999-01-30 发布日期:1999-01-30

STUDY ON THE MUTAGENICITY OF TEA GREEN PIGMENT

Xu Dexiang, Wang Qunan, Sun Meifang, etal   

  1. Dept .of Toxicology, Anhui Medical University, Hefei  230032
  • Received:1998-02-05 Revised:1998-06-10 Online:1999-01-30 Published:1999-01-30

摘要: 对中国绿茶提取物茶绿色素的致突变作用进行了研究。结果表明:茶绿色素800 (1/ 16LD50) mg/ kg、1 600 (1/ 8LD50)mg/ kg 和3 200 (1/ 4LD50) mg/ kg 各剂量组小鼠骨髓PCE 微核率分别为3. 6 ‰ ,312 ‰,216 ‰,与阴性对照组(218 ‰) 比较均无显著性差异;31215μg/ 皿、625μg/ 皿、1 250μg/ 皿、2 500μg/ 皿、5 000μg/ 皿各剂量组TA97 、TA98 、TA100、TA102 等测试菌株加与不加S9 均未见回复突变率增加(MR < 2) ;茶绿色素800mg/ kg、1600mg/ kg、3 200mg/ kg 各剂量组小鼠睾丸初级精母细胞染色体畸变率与对照相比较无明显差异( P > 0. 05) ,而800mg/ kg 和3 200mg/ kg 剂量组小鼠睾丸初级精母细胞性染色体单价体(4. 8 % ,6. 8 %) 与对照组(2. 5 %) 比较有显著差异( P < 0105) ,各剂量组常染色体单价体与对照组比较无显著差异( P > 0.05) 。

关键词: 茶绿色素, 突变性

Abstract: The mutagenicity of tea green pigment was studied. No mutagenic proof s were found in Ames test . The f requencies of micronucleus in bone marrow PCE cells of mice t reated with tea green pigment at the doses of 800mg/ kg ( 1/ 16LD50) 、1 600mg/ kg ( 1/ 8LD50) 、3 200mg/ kg ( 1/ 4LD50) showed no significant difference when compared with that of cont rol. The distinctly increasing separation of sexual chromosome was found in mice t reated with tea green pigment at the 3 200mg/ kg (1/ 4LD50) and 800mg/ kg (1/ 16LD50) groups in primary spermatocyte chromosome aberration assay. However , no signicant difference in f requencides of chromosome aberration and separation of ordinary chromosome in primary spermatocyte was observed between the t reated groups and the cont rol.

Key words: tea green pigment, mutagenicity