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本文观察了~(60)Coγ线全身一次照射后,大鼠空肠上皮细胞数和肠粘膜对酪氨酸、色氨酸转运能力的变化。在一定照射剂量范围内,肠上皮细胞数和氨基酸转运率随剂量增大而减小;8Gy照后2～3天上皮细胞数和氨基酸转运率降至最低,4天开始回升, 7天上皮细胞数已恢复正常,氨基酸转运率分别回升至正常值的70%和85%,直至照后11天基本维持在这一水平。文中初步讨论了肠上皮损伤与氨基酸转运障碍的关系,并对照后氨基酸和葡萄糖转运障碍进行了比较。
In this paper, the change of the number of jejunal epithelial cells and the intestinal mucosa transport ability of tyrosine and tryptophan were observed after a single irradiation of ~ (60) Coγ line. In a certain dose range, intestinal epithelial cells and amino acid transport rate decreased with increasing doses; 2 ~ 3 days after 8Gy epithelial cells and amino acid transport rate to a minimum, 4 days began to rise, 7 days epithelial cells The numbers returned to normal, and the amino acid transport rates rose to 70% and 85% of their normal values, respectively, and remained basically unchanged at 11 days after irradiation. The article first discussed the relationship between intestinal epithelial injury and amino acid transport dysfunction, and compared the control amino acid and glucose transport disorders were compared.