中药有效成分对甲基硝基亚硝基胍转化的人胃黏膜上皮细胞的毒性作用

表2 PNS、AS及Ba对MC细胞的抑制作用(mean±SD, %)

t/h	PNS 130 mg/L	PNS 210 mg/L	AS 90 mg/L	AS 125 mg/L	Ba 25 mg/L	Ba 40 mg/L	P+A	P+B	A+B	P+A+B
24	36.9±1.4	68.0±2.2a	29.0±3.0	49.5±2.7b	27.9±1.5	56.5±1.3c	73.4±0.9abde	67.1±2.6ac	64.3±2.4bcef	83.0±4.5abcdef
48	36.0±2.8	68.5±3.0a	33.6±4.4	72.8±2.2b	36.1±3.8	82.8±7.3c	90.4±0.4abde	78.7±1.7acdf	87.3±0.6bcef	92.7±2.4abcdef
72	36.1±2.1	81.8±1.2a	50.1±2.2	83.4±1.5b	56.6±1.1	88.6±0.3c	94.9±0.4abde	83.5±0.3acdg	94.2±0.1bcef	96.2±0.8abcdef

^aP<0.01 vs PNS 130 mg/L;

^bP<0.01 vs AS 90 mg/L;

^cP<0.01 vs Ba 25 mg/L.

^dP<0.01 vs PNS 210 mg/L;

^eP<0.01 vs AS 125 mg/L;

^fP<0.01vs Ba 40 mg/L;

^gP<0.05 vs Ba 40 mg/L.