Assuntos
Difteria/imunologia , Polineuropatias/imunologia , Doença Aguda , Adulto , Idoso , Formação de Anticorpos , Causas de Morte , Difteria/complicações , Difteria/diagnóstico , Difteria/mortalidade , Feminino , Humanos , Imunidade Celular , Letônia/epidemiologia , Masculino , Pessoa de Meia-Idade , Polineuropatias/diagnóstico , Polineuropatias/etiologia , Polineuropatias/mortalidadeRESUMO
Antigens of I class HLA system (locus A and B) were investigated in 67 patients of Latvian nationality suffering from juvenile rheumatoid arthritis (JRA). Associations of HLA antigens with juvenile rheumatoid arthritis partially coincided with the ones revealed earlier. Typing established an increased incidence of antigen B27 (p less than 0.01) and gaplotype A2, B40 (p less than 0.01). Antigen B15 possessed a protective action with respect to JRA. Interlocus combinations demonstrated a closer association with the disease than a single antigen. The authors also revealed markers of various clinico-anatomical variants of JRA.
Assuntos
Artrite Juvenil/etiologia , Antígenos HLA-A/genética , Antígenos HLA-B/genética , Adolescente , Artrite Juvenil/genética , Criança , Pré-Escolar , Suscetibilidade a Doenças , Marcadores Genéticos/genética , Antígeno HLA-B27/genética , Humanos , Lactente , Letônia , FenótipoRESUMO
The present paper reports on the results of the studies of the quantity, functional activity of immunocytes and interrelation between their parameters in healthy children (12-14) with healthy periodontium which were ascribed either to caries-resistant or caries-prone group. In all the subjects venous blood and mixed saliva were investigated. Immune state was described through its parameters interrelations. This yields better detection of differences in immune states of both groups.
Assuntos
Suscetibilidade à Cárie Dentária , Cárie Dentária/imunologia , Adolescente , Criança , Humanos , Imunidade Celular/efeitos dos fármacos , Imunoglobulinas/análise , Ativação Linfocitária/efeitos dos fármacos , Fagocitose , Formação de Roseta , Saliva/imunologiaRESUMO
The authors analyse the findings of the lymphocytotoxicity test with monoclonal antibodies and the indirect immunofluorescence method used for the assays of T lymphocyte subpopulations. The mean values of the total count of T lymphocytes, T helpers, T suppressors, as well as the immunoregulation index obtained by both methods have proved practically the same. The lymphocytotoxicity data have been in good correlation with the findings of indirect immunofluorescence in tests with all the monoclonal OCT antisera.
Assuntos
Linfócitos T/classificação , Anticorpos Monoclonais , Testes Imunológicos de Citotoxicidade , HumanosAssuntos
Antígenos HLA/imunologia , Transplante de Rim , Linfócitos/imunologia , Monitorização Fisiológica , Imunologia de Transplantes , Adolescente , Adulto , Linfócitos B/imunologia , Transfusão de Sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cuidados Pré-Operatórios , Prognóstico , Linfócitos T/imunologia , Linfócitos T Reguladores/imunologiaRESUMO
Tumour cells of a patient with T-cell chronic lymphocytic leukemia had surface (E+, OKT3+, OKT4+, OKT8-, SIg-, Ia-) and cytochemical (properties positive reaction to acid phosphatase, acid nonspecific esterase and negative reaction to terminal deoxynucleotidyl transferase) specific for T-helper lymphocytes. They had no activity of NK and K-cells, reacted weakly to mitogens (PHA, Con A, PWM) and allogenic cells. Con A and PWM stimulated synthesis of specific receptors (OKT3 and OKT4) on the surface of malignant cells, whereas PHA decreased the amount of above receptors.
Assuntos
Leucemia Linfoide/imunologia , Linfócitos T Auxiliares-Indutores/imunologia , Anticorpos Monoclonais , Citotoxicidade Celular Dependente de Anticorpos , Citotoxicidade Imunológica , Humanos , Leucemia Linfoide/patologia , Ativação Linfocitária , Masculino , Mitógenos/farmacologia , Fenótipo , Linfócitos T/imunologiaRESUMO
The authors present comparative characteristics of the methods of isolation of T- and B-lymphocytes in patients with chronic renal insufficiency. T-lymphocytes were obtained on columns with neilon cotton wool. B-cells were fractionated by repeated centrifugation in the gradient of phycol-urotrast density after staging E-rosette formation with the total lymphocyte pool. Methodical peculiarities of single-stage and two-stage B-lymphocyte fractionation were revealed.