The regulatory effects of GIPS (0.1, 0.3 and 0.9 g/kg) and Tα1 (0.16 mg/kg) on the levels of (A) IgA, (B) IgG and (C) IgM in serum and spleen of CTX-induced immunosuppressed mice. Data were expressed as means ± SEM (n=12). ##P<0.01 and ###P<0.001 vs. control group, *P<0.05 and **P<0.01 vs. model group. CTX, Cyclophosphamide; GIPS, G. incarnatum polysaccharides; Tα1, Thymosin α1.