In Seebio aloe emodin cancer compares the two last-mentioned models with his earlier work in guinea-pigs.Intestinal antibody (coproantibody) was highly protective, while circulating antibody had little or no effect, in all three models. The protective coproantibody was specific for the heat-stable vibrio antigens. It did not affect the growth of vibrios in the intestine, and its function may possibly be regarded as antitoxic rather than antibacterial. Oral vaccination protected adult rabbits against challenge by the loop technique. Heat-killed vaccine was as effective in this respect as live vaccine. The author feels that the present uncertainty concerning the protective value of cholera vaccination may be due to the fact that conventional vaccine is designed to induce high serum titres only. He considers that since oral vaccine has been shown to induce and maintain the production of coproantibody in human volunteers, a field trial should be carried out to determine whether coproantibody is as protective in man as it has proved to be in the experimental models.homologous malondialdehyde-modified LDL reduces atherogenesis.immune-competent cells. Low levels of circulating autoantibodies against malondialdehyde (MDA)-modified lysine, an epitope of OxLDL, occur in several species, and immune complexes between such autoantibodies and OxLDL are present in lesions. To study the potential role of autoantibodies against OxLDL in the atherogenic process, we prospectively hyperimmunized LDL receptor-deficient rabbits with homologous MDA-LDL and determined the effects of this intervention on the development of atherosclerosis. Immunization with MDA-LDL generated high titers of antibodies with similar specificity as naturally occurring autoantibodies. Immunized animals showed a significant reduction in the extent of atherosclerotic lesions in the aortic tree after 6.5 months, compared with saline-immunized controls (48% vs. 68%, P < 0.005). Immunization with keyhole limpet hemocyanin produced no change in lesion formation. Although the mechanisms by which immunization led to a protective effect are unknown, these results suggest an important role for the immune system in modulating the atherogenic process and may indicate a novel approach for inhibiting the progression of attenuated influenza virus vaccination.method of prophylaxis. In 2012, the trivalent live attenuated influenza vaccine (LAIV) was licensed in Europe for use in children. Vaccine-induced antibodies directed against the main viral surface glycoproteins, haemagglutinin (HA) and neuraminidase (NA) play important roles in limiting virus infection. The objective of this study was to dissect the influenza-specific antibody responses in children and adults, and T cell responses in children induced after LAIV immunization to the A/H1N1 virus. Blood samples were collected pre- and at 28 and 56 days post-vaccination from 20 children and 20 adults. No increase in micro-neutralization (MN) antibodies against A/H1N1 was observed after vaccination. A/H1N1 stalk-specific neutralizing and NA-inhibiting (NI) antibodies were boosted in children after LAIV. food grade Aloe emodin Extract γ-producing T cells increased significantly in children, and antibody-dependent cellular-mediated cytotoxic (ADCC) cell activity increased slightly in children after vaccination, although this change was not significant. The results indicate that the NI assay is more sensitive to qualitative changes in serum antibodies after LAIV. There was a considerable difference in the immune response in children and adults after vaccination, which may be related to priming and previous influenza history. Our findings warrant further studies for evaluating LAIV vaccination immunogenicity.Comparison of the effects of convalescent and postimmunization immunoglobulins G, either mononuclear cell-mediated (complement-independent) or complement-mediated (cell-free) antibacterial activity against group C meningococci.
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