Methods The expression of Fas and FasL antigen on peripheral blood T lymphocytes was determined by flow cytometry and three colour double marked immunofluorescence methods in 26 patients with Behcet disease and 43 healthy individuals.

• 方法 采用流式细胞仪 (flow cytom etry)及三色荧光双标记细胞免疫荧光技术对 2 6例Behcet病患者和 43例正常人外周血 T淋巴细胞表面 Fas和 Fas L抗原的表达进行检测。