1971年7月我组对100例老年慢性气管炎患者用强力霉素治疗前及治疗后第10天的痰液进行细胞学检查,观察疗效。并以20例50岁以上正常老年人的痰液作对照。检查方法:初次涂痰片三张,等量95%酒精,乙醚混合液固定,巴氏染邑,选取有吞噬细胞及脱落纤毛柱状上皮数量最多的一弘观察记录。记录全片纤上皮细胞总数;纤毛,胞浆与胞核的形态改变; July 1971 my group of 100 elderly patients with chronic bronchitis with doxycycline before and after treatment on the 10th day of sputum cytology to observe the effect. The sputum of 20 elderly people over the age of 50 were used as controls. Inspection methods: the first sputum smear three, the same amount of 95% alcohol, a mixture of ether fixed, pasteur dye Yap, select a phagocytic cells and shedding the largest number of cilia epithelial observation record. Record the total number of fiber epithelial cells; cilia, cytoplasmic and nuclear morphological changes;