本文作者对209例身体健康,心理正常,居住在家独立生活,未服已知能影响免疫功能药物的老人进行研究。其中男性83例,女性126例,年龄60～90岁。用EPICS541流动式细胞仪检测全血中荧光色素连结物标记的单克隆抗体。 19例CD_4计数低于0.4×10~9/L,9例计数低于0.3×10~9/L。CD_4计数与体重指数(BMI)(r=0.364;P=0.002),体重(r=0.167;P=0.04),清蛋白(r=0.222;P=0.001)和胆固醇(r=0.195;P= The author of 209 cases of healthy, normal psychology, living in an independent living, not known to affect the immune function of the elderly to study. Including 83 males and 126 females, aged 60 to 90 years. Monoclonal antibodies labeled with fluorochrome linker in whole blood were detected by EPICS541 flow cytometry. 19 cases of CD_4 less than 0.4 × 10 ~ 9 / L, 9 cases less than 0.3 × 10 ~ 9 / L. CD_4 was significantly associated with body mass index (BMI) (r = 0.364; P = 0.002), body weight (r = 0.167; P = 0.04), albumin