title: T-lymphocyte subsets in the duodenal lamina propria of patients infected with the human immunodeficiency virus type 1 and influence of high-dose immunoglobulin therapy.
abstract: T-lymphocyte subsets in duodenal biopsies of human immunodeficiency virus type 1 (HIV-1)-infected patients were studied by immunocytochemical staining to determine the alterations of CD4- and CD8-cell subsets in comparison with HIV-1 antibody-negative controls and to examine the association with stage, gastrointestinal symptoms, and peripheral lymphocyte subsets and the influence of high-dose intravenous immunoglobulins. A significant decrease in duodenal CD4 cells (p less than 0.001) and CD4/CD8 ratio (p less than 0.001) follows HIV-1 infection when compared to HIV-1-negative controls, more accentuated both in patients of stage WR6 and suffering from diarrhea than in those of stages WR1-5 or without diarrhea. In addition, a significant increase in CD8 cells (p less than 0.01) could be found in HIV-1-infected patients, again with lower levels in patients of stages WR6 than WR1-5. A strong correlation was found between the intestinal and peripheral CD4/CD8 ratio (R = 0.80), but the correlation was weak if HIV-1-negative persons were excluded from analysis (R = 0.29). Treatment with high-dose intravenous immunoglobulins improved diarrhea in four of five patients; two patients gained weight. Diffuse lymphocytic infiltration of the lamina propria, villous atrophy, CD4- and CD8-cell percentage, and CD4/CD8 ratio were not influenced.
authors.affiliation: Department of Internal Medicine II, University of Cologne, F.R.G.
authors.forename: M
authors.initials: M
authors.lastname: Schrappe-Bächer
authors.forename: B
authors.initials: B
authors.lastname: Salzberger
authors.forename: G
authors.initials: G
authors.lastname: Fätkenheuer
authors.forename: C
authors.initials: C
authors.lastname: Franzen
authors.forename: B
authors.initials: B
authors.lastname: Koch
authors.forename: G R
authors.initials: GR
authors.lastname: Krueger
authors.forename: W
authors.initials: W
authors.lastname: Kaufmann
mesh_terms: D000328:Adult; D000368:Aged; D001706:Biopsy; D015496:CD4-Positive T-Lymphocytes; D003967:Diarrhea / Q000150:complications / Q000276:immunology / Q000628:therapy; D004386:Duodenum / Q000276:immunology*; D005260:Female; D015658:HIV Infections / Q000150:complications / Q000276:immunology* / Q000628:therapy; D006801:Humans; D007116:Immunization, Passive; D007150:Immunohistochemistry; D007958:Leukocyte Count; D008297:Male; D008875:Middle Aged; D013601:T-Lymphocytes; D050378:T-Lymphocytes, Regulatory