摘要
目的研究氟中毒对大鼠肾脏细胞凋亡和对肾脏细胞增殖周期的作用 ,并研究氟中毒对肾脏氧化应激和肾脏损伤的影响。方法给Wistar大鼠饮用含50mg/L氟化钠的高氟水 ,6个月后用TUNEL法和流式细胞术检测大鼠肾脏细胞凋亡和细胞增殖周期的变化。结果氟中毒能诱导大鼠肾脏TUNEL阳性细胞 ,且凋亡细胞率较对照组明显增高 ,并使G2/M期细胞明显下降 ,DNA相对含量 (DNA RC)也显著下降。且氟中毒能引起大鼠肾脏氧化应激和组织损伤。
Objective This study was conducted to explore the effects of fluorosis on rat renal apoptosis and proliferation, oxidative stress and necrosis. Methods Wistar rats were provided with distilled water containing NaF(50mg/L) for six months. Kidney cell apoptosis and the cell cycle of proliferation were detected by TUNEL (TdT-mediated dUTP Nick End Labelling) and flow cytometry. Rsults TUNEL_positive cells could be detected in fluoride_treated rat kidney. The apoptotic rates of fluoride_treated kidney cells were higher than that of control significantly. Fluorosis could reduce the cell number of G2/M period in cell cycle and decrease DNA relative content significantly. In addition, fluorosis could induce rat renal oxidative stress and necrosis. Cnclusion It was suggested that fluorosis could induce apoptosis and change the cell cycle of rat renal cells in vivo, and also could result in rat renal oxidative stress and necrosis.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2001年第6期336-338,共3页
Journal of Environment and Health
基金
国家"九五"医学科技攻关项目 (96_906_04_02)
