To study the expression of FAS antigens in peripheral blood mononuclear cells(PBMC) and liver tissues of patients with chronic hepatitis C (CHC) and the relationship between them.

• 观察慢性丙型肝炎 (CHC)患者肝组织及外周血单核细胞 (PBMC)FAS抗原表达对CHC病情的影响 ,进而探讨FAS系统与CHC的关系及临床意义。