铟锡氧化物对大鼠体内铁、锌、铜元素含量的影响

Journal of Environmental & Occupational Medicine(2017)

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Abstract
[目的]探讨铟锡氧化物(ITO)对大鼠体内铁、锌、铜元素含量的影响.[方法]选取SPF级Wistar雄性大鼠24只,随机分为对照组、ITO 3 mg/kg组和ITO 6 mg/kg组.对染毒组大鼠进行肺灌注染毒,每周2次,连续染毒8周.染毒结束后,在屏障环境下继续喂养8周.造模结束后立即处死大鼠,摘取其肺脏、肝脏、肾脏、心脏、脾脏和股骨,经微波消解处理后,采用电感耦合等离子体质谱法测定铟、铁、锌、铜元素含量.[结果]与对照组相比,ITO 3 mg组和6mg组大鼠肺脏、肝脏、心脏、脾脏、股骨铟含量均更高(均P<0.05),肺脏、肾脏中锌含量更低(均P<0.05),肺脏、肝脏中铁含量更低(均P<0.05);ITO 6mg组大鼠肺脏、肝脏和肾脏中铜/锌值均高于对照组(P<0.05).[结论] ITO染毒可降低大鼠肺脏组织中锌、铁含量,使铜/锌值升高,进丽干扰大鼠体内微量元素的平衡.
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Key words
indium-tin oxide,inductively coupled plasma mass spectrometry,indium,iron,zinc,copper
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