摘要
为了寻找对急性贫铀中毒具有促排及较好解毒作用的黄酮类化合物,给予Wistar大鼠贫铀,20mg/kg体重,立即给予含邻苯二酚基团的黄酮类化合物(包括QU、F1、F2、T1、T2、MY、BA),10mg/kg体重,连续3d,并设邻苯二酚类化合物8102及DMSO作为实验对照。观察大鼠在3d内的死亡率;收集72h尿液,取血液和一侧肾脏,测定铀含量,并进行肾功能检测和肾脏等组织病理观察。结果发现,急性贫铀损伤组死亡率为30%;使用促排剂后,8102组和F1组死亡率为0;T1、T2和DMSO组死亡率为20%。T2组尿铀含量增加,血铀含量减少,促排铀效果明显优于其它各促排剂(p<0.05),但肾脏铀含量增加;T1组次之,8102组肾脏铀含量降低。给予8102后,可使大鼠血清尿素氮和肌酐浓度大大降低,且能下降到与正常组相近的水平(p<0.01)。F1组次之,但降低幅度不如8102显著。F2、T1和T2组的肌酐浓度也显著降低。其余各组肾功能下降不显著。病理观察发现,T2组肾脏无明显损伤;8102和T1次之;F1和QU组肾损伤较重。这些结果说明,T2促排铀效果及对贫铀敏感器官的保护最好,并可改善肾功能,应具有作为贫铀促排剂的潜能。T1的效果次于T2。
In order to investigate decorporating and detoxicating acute depleted uranium poison of flavonoids, the decorporation effect of flavonoids with catechol group, chelating agent of catechols amino carboxylic acid type （8102） and dimethyl sulfoxide （DMSO） were studied under DU exposure and Wistar rats as animal model. In 3d later after injecting DU with dose of 20 mg/kg and then injecting flavonoids with dose of 10 mg/kg in abdomen, the mortality, uranium contents, kidney function and pathological observation of kidney were investigated. It has been found that nearly 20% mortality occurs both in the T2 and in T1 groups meanwhile 30% mortality occurs in the control group. But death has not been observed in 8102 group. The concentration of excreted urine uranium increases and the level of serum uranium decreases when T2 used. The retention of uranium in kidney with T2 group also increases. Large reducing of urea nitrogen and creafinine in serum has been observed in 8102 and Ft groups, and reducing of creafinine has also been observed in F2, T1 and T2 groups. The serious injury of kidney has not been observed in T2 group. The protection efficiency can be listed as T2〉 8102〉TI〉FI〉QU. It has been revealed that flavonoid T2 is the most effective protector from the damage and poison of DU.
出处
《辐射研究与辐射工艺学报》
CAS
CSCD
2009年第1期20-24,共5页
Journal of Radiation Research and Radiation Processing
基金
国家自然科学基金项目(30500144)
中国博士后科学基金项目(20060390680)资助
关键词
贫铀
促排
解毒
黄酮类化合物
Depleted uranium, Decorporation, Detoxication, Flavonoids
