首页|孕期低剂量镉暴露对C57BL/6母鼠肾脏组织的毒性损伤作用

孕期低剂量镉暴露对C57BL/6母鼠肾脏组织的毒性损伤作用

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为研究孕期低剂量镉暴露对母鼠肾脏的毒性效应,基于前期构建的孕期低剂量镉暴露小鼠模型,通过组织显微切片技术对镉暴露母鼠的肾脏组织结构进行观察,并通过实时定量PCR法和蛋白质免疫印迹法对肾脏中炎症相关基因和凋亡调控基因的mRNA和蛋白质表达水平进行检测.实验结果显示:孕期低剂量镉暴露可导致肾脏结构出现一定程度的病变,如肾小球内细胞数目增多,肾小囊变窄,肾小球略微肿胀等;与对照组相比,镉暴露母鼠肾脏中凋亡功能调控基因Bax的mRNA和蛋白质表达水平显著升高.综上所述,孕期低剂量镉暴露可导致母体肾脏结构发生损伤,该毒性作用可能与凋亡调控基因Bax的表达水平升高相关.研究结果旨在阐明孕期低剂量镉暴露对母体器官的毒性效应机制,为镉暴露下家畜的母胎健康风险评估和环境管理提供基础数据支持.
Toxic Effects of Gestational Cadmium Exposure on the Maternal Kidneys
This study explored the toxic effects of low-dose maternal Cadmium(Cd)exposure on the kidneys of mice.The histologi-cal observation of kidneys of the Cd-exposed mice was performed by hematoxylin and eosin staining method.The mRNA levels and protein levels of inflammatory factors and apoptotic genes were detected by the quantitative real-time PCR and western blot meth-ods.The results showed that low-dose maternal Cd exposure can lead to renal structural changes,such as the increased number of the glomerulus cells,the slight swelling of the glomerulus,the mRNA and protein levels of Bax were significantly increased in the mater-nal kidneys of Cd-exposed groups.In summary,low-dose Cd exposure can lead to the structural damages of maternal kidneys,which is likely to be due to the increase in the expression levels of Bax.This study may provide basic data for disease research in animal husbandry.

gestational exposurekidneyC57BL/6 mouseCadmium

刘建军、许鹏

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吕梁市综合检验检测中心,山西 吕梁 033000

山西大学生命科学学院,山西 太原 030006

山西大学化学生物学与分子工程教育部重点实验室,山西 太原 030006

山西省吕梁市人民医院,山西 吕梁 033099

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孕期暴露 肾脏 C57BL/6小鼠

国家自然科学基金中央引导地方科技发展资金吕梁市引进高层次科技人才重点研发项目

32371715YDZJSX2022A0022023RC07

2024

农业技术与装备
山西省农业机械化技术推广总站 山西省农业技术推广站 山西省农业生态环境建设总站

农业技术与装备

影响因子:0.132
ISSN:1673-887X
年,卷(期):2024.(7)