RESUMEN
Objective: To observe the characteristic changes of specific immunological function of serum endo toxin level,spleen lymphocyte human leukocyte antigen(locus) DR(HLA-DR),limphopolesis and positive expression of caspase-3 in rats with sepsis and the effect of Xuebijing injection(血必净注射液) on their immunological function.Methods: Sepsis model was produced by cecal ligation and puncture(CLP).Seventytwo male SD rats were randomly divided into four groups: sham operation,model,levofloxacin and Xuebijing injection.Blood samples were taken from the vein in the abdominal cavity at 3,24 and 72 hours after the models were established, afterwards the rats were sacrificed and their spleens were taken out.Matrix development process was employed to examine the level of serum endotoxin,FACS flow cytometer was used to examine the expression level of HLA-DR,immunohistochemistry method was applied to examine the positive expression of caspase-3 in spleen,and the method of methyl thiazolyl tetrazolium(MTT) was employed to examine the lymphopoiesis.Results: The levels of serum endotoxin,lymphopoiesis and caspase-3 positive expression index in model group were obviously elevated than those of sham operation group,and percentage of HLA-DR was markedly lowered(all P