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Objective: To investigate the immune regulation of flavonoid of Astragalus membranaceus’s stem and leaf(FAM-sl). Methods: Changes of total T cell count and subsets in mice were determined by monoclonal antibody assay before and after treatment with FAM-sl, and the lymphokine activated killer cell (LAK) activity was tested simultaneously by isotope label method.Results: FAM-sl could promote the proliferation of lymphocytes induced by ConA, raise the total T cell count and regulate the T cell subsets disturbance, and elevate the LAK activity induced by recombinant interleukin-2 (rIL-2).Conclusion: FAM-sl possesses effects of immune stimulation and immune regulation in treating immunosuppressive mice. This study provides experimental evidence for clinical application of FAM-sl.
Objective: To investigate the immune regulation of flavonoid of Astragalus membranaceus’s stem and leaf(FAM-sl). Methods: Changes of total T cell count and subsets in mice were determined by monoclonal antibody assay before and after treatment with FAM-sl, and the Lymphokine activated killer cell (LAK) activity was tested simultaneously by isotope label method.Results: FAM-sl could promote the proliferation of lymphocytes induced by ConA, raise the total T cell count and regulate the T cell subsets disturbance, and elevate the LAK activity Induced by recombinant interleukin-2 (rIL-2).Conclusion: FAM-sl possesses effects of immune stimulation and immune regulation in treated immunosuppressive mice. This study provides experimental evidence for clinical application of FAM-sl.