Methods Using double antibody sandwith ELISA, the serum sFas was tested in 46 patients with colorectal cancer, 15 patients with polyps or adenoma,10 patients with ulcerous colonitis, and in 15 patients with colorectal cancer pre and postoperation.

• 方法 用双抗体夹心ELISA法检测 46例大肠癌、15例息肉或腺瘤、10例溃疡性结肠炎患者血清中可溶性Fas(sFas)表达水平 ,并比较 15例大肠癌患者术前、术后sFas的变化。