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The in vitro effects of iridovirus isolated from catfish on head kidney lymphocyte activity were examined in carp, rainbow trout and sheatfish. Mitogenic proliferative assay was used to demonstrate an immunosuppressive effect of iridovirus on the proliferative response of head kidney lymphocytes stimulated by ConA and LPS. The production of IL-2-like protein by head kidney lymphocytes stimulated by...
The effects of lysozyme dimer (2 and 20 μg/kg) administered i.p. once and four times to mice on the phagocytic and killing ability of peritoneal macrophages, interleukin-1 (IL-1) production by murine macrophages stimulated in vitro with lipopolisaccharide of E. coli and expression of thymocyte, splenocyte and mesenteric lymphonode cell CD3+, CD4+ and CD8+ markers were studied. It was found that lysozyme...
The immunotropic properties of calf thymus extract (TFX-Jelfa) is connected with the mimic action of the thymus to modulate the differentiation, maturation and function of prothymocytes and mature thymus dependent (T) cells. The studies were carried out on CFW male mice aged 3 months. The animals were infected per os with 200 larvae of Trichinella spiralis. TFX-Jelfa was administered i.p. at a dose...
The present paper refers to the cytometric analysis of lymphocytes T (with receptor CD5+), Th (with receptor CD4+), Tc/Ts (with receptor CD8+), lymphocytes CD25+ and lymphocytes B with receptor CD19+ in rabbits experimentally infected with strains of RHD virus - Rainham, Frankfurt and Asturias, not having haemagglutinogenic capacities, which makes them unique, as haemagglutinogenic capacity is a classic...
Florfenicol is a broad-spectrum bacteriostatic antibiotic used in domestic animals. The aim of the study was to determine the effect of florfenicol on the total number of lymphocytes in the thymus, spleen and mesenteric lymph nodes and the percentage and the absolute number of T cell subsets (CD4+CD8+, CD4-CD8-, CD4+, CD8+) in the thymus and T (CD3+, CD4+, CD8+) and B (CD19+) lymphocytes in the peripheral...
WC1+ cells in cattle exhibit both regulatory and effector activities. However, it has not been elucidated whether they are so plastic that both activities co-exist in one cell or there are separate subpopulations of effector and regulatory cells. Since the production of IFN-γ and IL-10 seems to be related to WC1+ cells’ effector and regulatory function, respectively, the main aim of this study was...
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