中药复方肠安泰胶囊对大肠癌肺转移模型小鼠肠粘膜T细胞及NK细胞的诱导

为了观察肠安泰胶囊对肠管粘膜免疫系统T细胞及NK细胞的诱导 ,建立了大肠癌肺转移小鼠动物模型 ,采用ABC免疫染色方法对小肠 ,大肠免疫因素做相关分析。结果显示荷瘤对照组与正常对照组相比 ,T细胞及NK细胞在小肠 ,大肠均有增加趋势。荷瘤治疗组与荷瘤对照组相比 ,T细胞及NK细胞在小肠有显著性增加 (P <0 0 1)。提示肠安泰胶囊预防大肠癌肺转移的机理 。

5-Fluorouracil derivatives ⅩⅩⅢ. Synthesis and antitumor activities of 1-carbamoyl-5-fluorouracils having aromatic ring

In order to get good antitumor agents especially better than 5-fluorouracil,tegafur and l-hexylcarbamoyl-5-fluorouracil (HCFU),fourty nine 1-carbamoyl-5-fluorouracil having aromatic ring were synthesized from 5-fluorouracil and isocyanates or amines.Antitumor activity was tested in the L-1210 tumor system,and 5 compounds gave better value of therapeutic ratio than 5-fluorouracil,tegafur,HCFU.l-(4-Methoxybenzylcarbamoyl)-5-fluorouracil gave the best result.