Compared to different durations,the same TXL concentration effecting for 36,24 h had better effect than that for 12 h. The distinction showed no statistical significance between 36 h and 24 h.

• 相同浓度通心络作用不同时间其MTT代谢率相比较；36、24h组优于12h组(P<0.；05)；而24h与36h组间比较差异无统计学意义。