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    Home > Biochemistry News > Microbiology News > Effect of probio-M8 on immune function of rats in immunosuppressive model

    Effect of probio-M8 on immune function of rats in immunosuppressive model

    • Last Update: 2020-11-25
    • Source: Internet
    • Author: User
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    As a probiotic isolated from the breast milk of healthy women, probiotic probiotic pyrethroide has been found to improve high uric acid caused by high fructose, relieve asthma, relieve constipation, anxiety, and assist in the treatment of coronary heart disease and Parkinson's disease. At the same time, a series of studies have been carried out on the role of probio-M8 in immunity. In this study, the regulatory effect on host-specific immunity and non-specific immune response was discussed by immune-inhibited rat model dosing of mastogenic Bifido-M8 and analyzing the results.Experimental design Translation details1. Experimental subjects a total of 50 rats (weight 180±20 grams), randomly divided into five groups (blank control group, model control group, low-dose probiotic group, medium-dose probiotic group and high-dose probiotic group), each group of 10.2. The experimentalfirst all rats need to be fed 6 days of breast-milk Bifidoprobio-M8 to adapt. After the 7th day, in addition to the blank control group, the remaining four groups of rats were injected with cyclophosphamide (CTX) 40 mg/kg daily for 3 consecutive days to establish an immunosuppressive model. Three probiotic group rats were given different amounts of probiotic intervention, with a low dose group of 1x
    10
    8 CFU/day, a medium dose group of 1x
    10
    9
    CFU/day, and a high-dose group of 1x
    10
    10
    CFU/day.3. Detection methodTo detect the subgroup percentage of whole blood lymphocytes in each group of rats, the conversion and proliferation activity of T lymphocytes, serum IgA, IgG, IL-2, IL-6, IFN-γ and TNF-α levels.results 1. Percentage of whole blood lymphocyte subgroupscompared to the blank control group, the percentage of whole blood CD3-T lymphocytes, CD4-T lymphocytes, CD8-T lymphocytes, B lymphocytes and NK cells decreased significantly (P<0.05), indicating that the immune function of the model control group after cyclophosphamide treatment was inhibited. Compared with the model control group, the percentage of whole blood CD3-T lymphocytes, CD4-T lymphocytes and CD8-T lymphocytes increased significantly in the high-dose probiotic group rats (P<0.01), while the percentage of whole blood CD3-T lymphocytes, CD4-T lymphocytes and CD8-T lymphocytes increased significantly in the medium- and low-dose probiotic group rats. Compared with the model control group, the percentage of whole blood B lymphocytes increased significantly in the high school dose group rats (P<0.05), while the change in the low dose group was not significant. Compared with the model control group, the percentage of whole blood NK cells increased significantly in the high-dose group rats (P<0.01), while the change in the medium-low-dose group was not significant (Table 1).the body cell immunity is mediated by T lymphocytes, the body fluid immunity is mediated by B lymphocytes, and the non-specific immunity is mediated by NK cells, etc. This suggests that mastococcal Probio-M8 can enhance the body's immune regulation by improving cellular immunity, body fluid immunity, and inherent immune response.Table 1. Percentage of rat whole blood T lymphocytes, B lymphocytes and NK cells 2.T lymphocyte conversion proliferation capacity Compared with the blank control group, the conversion and proliferation activity of lymphocytes in the model control group was significantly reduced (P<0.01). Compared with the model control group, the conversion and proliferation activity of T lymphocytes in high school dose group rats increased significantly (P<0.01) (Table 2).showed that the ability to convert and proliferate T lymphocytes in immunosuppressed rats was restored after treatment with Pylo-M8.Table 2. Compared with the blank control group, IgA and Ig3<. immunoglobulin-serum indexcompared with the blank control group;compared with the blank control group, the levels of serum cytokine IL-2, IL-6, TNF-α and TNF-γ decreased significantly in the model control group compared to the blank control group(P<0.01); , IL-6, TNF-α and TNF-γ levels increased significantly (P<0.01), while for the low-dose group serum cytokine IL-2 and IFN-γ levels increased (P<0.05) (Table 3).Immunoglobulin and cytokine expression were inhibited in rats in themodel control group, resulting in a decrease in cytokines such as B lymphocytes and Th1 cells, Th2 cells producing IgA, IgG, IL-2 and IL-6, and a decrease in immune response. After treatment with IGA, IgG, IL-2, IL-6, IFN-γ, and TNF-α in rat serums, levels increased, indicating that IB Probio-M8 improved immune immunity and cell immunity in rats by promoting B lymphocytes, T lymphocyte secretion immunoglobulins, and Th1 cells and Th2 cytokines.Table 3. Rat serum IgA, IgG, IL-2, IL-6, IFN-γ and TNF-α levelsExperimental Conclusions Clocal BifidoProbio-M8 can improve the percentage of lymphocytes and T lymphocytes in immunosuppressive model rats The proliferation capacity and the increase of IgA, IgG, IL-2, IL-6, IFN-γ and TNF-α content in the serum improve the cellular immunity, body fluid immunity and inherent immune response regulation, while promoting immunomodulation in immunosuppressive rats.This article was published : Jilin University Journal (Medical Edition) 2020, 46 (3): 582-588
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