title: [The specific features of immune disorders in acute severe brain injury].
abstract: Fifty-three patients aged 17-65 years who had severe brain injury (SBI) were examined and randomized to 2 groups: 1) 16 patients without complications; 2) 37 patients developed pneumonia (35.2%), bronchitis (32.4%), meningitis (10.8%), meningitis concurrent with pneumonia (8.1%), bedsores concurrent with bronchitis (13.5%) on days 4-7. The authors studied the immune status: the subpopulation composition of lymphocytes (CD+, a marker of adult lymphocytes; CD+, a marker of T helper/inductor cells, CD8+, a marker of cytotoxic lymphocytes, CD16+, a marker of natural killer cells, CD20+, a marker of B lymphocytes) by the indirect immunofluorescence technique using monoclonal antibodies; the functional activity of lymphocytes from the expression of activation antigens, such as CD71+, CD25+, HLA-DR; serum immunoglobulins (IgG, IgA, and IgM) by the immunoturbidimetric technique using the test systems (Spinreakt, Spain). A control group included 23 apparently healthy individuals. Immunosuppression developing as significant T lymphopenia due to lower CD4+ and CD8+ lymphocytes, as well as impaired humoral immunity with inadequate IgG generation was detected in the acute phase of SBI. The indicators reflecting the development of secondary pyoseptic complications were elevated CD3+, CD4+, and CD8+ lymphocytes on day 7 and the higher lymphocytic expression of the activation antigens CD25+ and CD71+. The findings show that the diagnostic markers, such as CD3+, CD4+, CD8+, CD25+, and CD71+ lymphocytes, should be included into a comprehensive examination of patients with SBI.
authors.forename: N N
authors.initials: NN
authors.lastname: Epifantseva
authors.forename: T I
authors.initials: TI
authors.lastname: Borshchikova
authors.forename: G S
authors.initials: GS
authors.lastname: Surzhikova
authors.forename: Iu A
authors.initials: IuA
authors.lastname: Churliaev
authors.forename: D G
authors.initials: DG
authors.lastname: Dantsinger
authors.forename: V N
authors.initials: VN
authors.lastname: Vialova
authors.forename: S M
authors.initials: SM
authors.lastname: Purakhina
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D015703:Antigens, CD / Q000097:blood; D015415:Biomarkers / Q000097:blood; D001930:Brain Injuries / Q000150:complications* / Q000276:immunology*; D005260:Female; D006684:HLA-DR Antigens / Q000378:metabolism; D006801:Humans; D007136:Immunoglobulins / Q000097:blood; D007153:Immunologic Deficiency Syndromes / Q000097:blood / Q000175:diagnosis* / Q000276:immunology; D016131:Lymphocyte Subsets / Q000276:immunology; D008297:Male; D008875:Middle Aged; D055815:Young Adult
chemical_list: D015703:Antigens, CD; D015415:Biomarkers; D006684:HLA-DR Antigens; D007136:Immunoglobulins