目前已通过测定体液β_2—M,来判定肾脏病、肝病、肿瘤、结缔组织病、糖尿病等疾病,但关于脑脊液β_2—M测定对结脑的意义,国内尚未见报导。本文无选择地对不同病期、不同病型可确诊的结脑20例,采用放免方法,观察脑脊液β_2—M变化,对结脑诊断的意义作一探讨。一、资料与方法〈一〉资料:20例中男性4例,女性16例,年龄最小18岁,最大60岁,18至30岁者 At present, the determination of renal disease, liver disease, tumor, connective tissue disease, diabetes and other diseases has been made by measuring the body fluid β_2-M. However, there is no report on the significance of cerebrospinal fluid β_2-M determination on tuberculin. In this paper, 20 cases of tuberculous meningitis diagnosed at different stages and different types of disease were randomly selected. The changes of β_2-M in cerebrospinal fluid were observed by radioimmunoassay and the significance of diagnosis of tuberculous meningitis was explored. First, the data and methods <1> Information: 20 cases of 4 males and 16 females, the youngest 18 years old, up to 60 years of age, 18 to 30 years of age