目的:对比研究朱砂、朱砂安神丸与氯化汞、轻粉对小鼠的急性毒性。方法:小鼠一次给药后,分别检测肝肾组织中汞蓄积量,肝肾功能,观察肝、肾、等主要脏器的组织形态学变化,并运用实时荧光定量PCR(RT-PCR)的方法检测药物对MT-1,MT-2基因表达的影响。结果:氯化汞组小鼠肝、肾组织中汞蓄积量(13.2±7.63),(46.9±20.4)mg·kg-1远远高于朱砂低剂量组(0.18±0.35),(0.50±0.57)mg·kg-1,朱砂高剂量组(3.80±1.65),(23.9±9.95)mg·kg-1和朱砂安神丸低剂量组(0.22±0.23),(0.67±0.43)mg·kg-1,朱砂安神丸高剂量组(0.31±0.32),(0.72±0.57)mg·kg-1以及轻粉组(0.39±0.20),(0.76±0.48)mg·kg-1;朱砂高剂量组肝(863±469),(1 057±690)、肾(603±30),(3 114±313)、氯化汞组肝(1 385±364),(2 284±701)、肾(621±186),(3 162±493)组织中MT-1和MT-2 mRNA表达高于其他各组;朱砂高剂量组和氯化汞组小鼠肝肾组织中出现病理损伤。结论:小鼠一次性给药后,临床常用量的朱砂和朱砂安神丸毒性要远远小于氯化汞。
Objective:To study the acute toxicity of cinnabar,Zhusha Anshenwan,mercuric chloride and mercurous chloride in mouse.Method: Mouse were orally given Zhusha Anshenwan(10,20 g.kg-1),cinnabar(0.3,16 g·kg-1),mercuric chloride(70 mg·kg-1) and mercurous chloride(61.2 mg.kg-1),and toxicity were assayed 8 hours later.Result:Compared with the normal group,the renal injury occurred in mercuric chloride group;The accumulation of mercury in mercuric chloride group was much higher than other groups;mercuric chloride and the high dose of cinnabar can cause liver and kidney pathological changes,The RT-PCR analysis indicated that the expression of MT-1 and MT-2 increased in mercuric chloride groups and the high dose of cinnabar,In Zhusha Anshenwan,low dose of cinnabar and mercurous chloride groups,tissue Hg accumulation was insignificant and No MT induction was abserved.Conclusion:Acute toxicity of cinnabar and Zhusha Anshenwan at clinical dosages is much lower than that of mercuric chloride.