Objective:To research the influence of astragalus polysaccharids(APS) on CO concentration in blood and testicular micro-structure for varicocele (VC) rats;To indicate the spermatogenesis and sperm quality indirectly.;To explore the predictive index for spermatogenic tissue injury earlier in clinic for VC patients.
Methods:80 adolescent male SD rats were randomly assigned to sham-operation group (10 rats) and model group(70 rats). The 70 rats in model group were randomly assigned to astragalus polysaccha...