Methods The model of experimental colitis in rats was established by enema with DNFB, and the proportion of CD8 +T cells, CD8 +CD28 + T cells and CD8 +CD28 -T suppressor cells was determined by flow cytometry.

• 方法 建立DNFB实验性结肠炎大鼠模型 ,流式细胞仪计数检测脾脏和结肠黏膜上皮细胞内CD8+ T细胞、CD8+ CD2 8+ T细胞和CD8+ CD2 8-T抑制细胞的变化。