title: [Lymphocyte subpopulations in bronchoalveolar lavage fluid in AIDS].
abstract: Lymphocyte subpopulations in peripheral blood and bronchoalveolar lavage fluid (BAL) were examined in 29 patients with AIDS (26 men, three women; median age 32 [16-55] years). Patients in group 1 (n = 12) had no lung disease, in group 2 (n = 11) had Pneumocystis carinii pneumonia, in group 3 (n = 6) had other lung disease. There were 13 men and two women (median age 48 [21-80]) in the control group (bronchoscoped for mild pulmonary symptoms: no abnormal findings in the BAL). Compared with the control group, patients with AIDS had a significant deficiency in helper cells, both in blood (7-23% vs 50%; P < 0.01) as well as in the BAL (7-24% vs 52%; P < 0.001). There was a correlation of the percentage helper cell proportion in peripheral blood and BAL (for both group 1 and 2, rs = 0.75; P < 0.05). The proportion of helper cells in peripheral blood and BAL in AIDS patients was significantly lower in those with than without lung disease (group 1: 23% blood, 24% BAL vs group 2: 9% blood, 7% BAL; group 3: 7% blood, 7% BAL; P < 0.02 blood, P < 0.004 BAL). The percentage proportion of suppressor cells was greater in both blood and BAL in AIDS patients (group 1: blood 47%, BAL 63%; group 2: blood 44%, BAL 76%; group 3: blood 52%, BAL 75%) than in the controls (blood 28%, BAL 33% [P < 0.01], but there was no correlation between peripheral blood and BAL. In addition, the absolute number of suppressor cells in the lavage (30 cells/microliters in group 1 and 3, 65 cells/microliters in group 2) was significantly higher than in the controls (8 cells/microliters).--In AIDS patients there occurs a lymphocytosis in the BAL, while in blood there is a lymphopenia. The concordant decrease in helper cells in blood and BAL is decisive for the severity of any pulmonary infections.
authors.affiliation: Medizinische Universitätsklinik Bonn.
authors.forename: P
authors.initials: P
authors.lastname: Hotz
authors.forename: U
authors.initials: U
authors.lastname: Loos
authors.forename: B
authors.initials: B
authors.lastname: Lüderitz
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000097:blood / Q000150:complications / Q000276:immunology*; D000293:Adolescent; D000328:Adult; D001992:Bronchoalveolar Lavage Fluid / Q000166:cytology*; D005260:Female; D006801:Humans; D007958:Leukocyte Count; D016131:Lymphocyte Subsets; D008218:Lymphocytosis / Q000209:etiology; D008231:Lymphopenia / Q000097:blood / Q000209:etiology; D008297:Male; D008875:Middle Aged; D009504:Neutrophils; D011020:Pneumonia, Pneumocystis / Q000150:complications / Q000276:immunology; D006377:T-Lymphocytes, Helper-Inducer; D050378:T-Lymphocytes, Regulatory
vernacular_title: Lymphozyten-Subpopulationen in der bronchoalveolären Lavageflüssigkeit bei AIDS.