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苯二氮卓受体对放射性脑损伤大鼠氧自由基的影响

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摘要 目的观察苯二氮卓受体对放射性脑损伤大鼠氧自由基的影响。方法210只SD大鼠随机分为7组,每组30只,D-R组:照射前30min腹腔注射地西泮5mg/kg;F-R组:照射前30min腹腔注射氟马西尼0.025mg/kg;DF-R组:照射前30min腹腔注射地西泮5mg/kg,照射前15min腹腔注射氟马西尼0.025mg/kg;N-R组:照射前未用药;D-SR组:假照射前30min腹腔注射地西泮5mg/kg;F-SR组:假照射前30min腹腔注射氟马西尼0.025mg/kg;N-SR组:假照射前未用药。所有照射组建立清醒状态下大鼠放射性脑损伤模型。各组分别于照射(或假照射)前即刻、照射后6h、1d、1周和1个月时测定脑组织中超氧化物歧化酶(SOD)活力和丙二醛(MDA)含量的变化。结果N-R、F-R、DF-R组照射后脑组织SOD活力较D-R组减弱,MDA含量较D-R组增加(P<0.05)。结论在照射前使用地西泮可增强脑组织SOD活力,降低脑组织中MDA含量,氟马西尼在用药后可以拮抗地西泮的作用,苯二氮卓受体对放射性脑损伤大鼠的自由基损伤有一定的防护作用。
出处 《中国实用医药》 2007年第34期54-55,共2页 China Practical Medicine
基金 国家自然科学基金资助项目(项目编号:301702287)
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参考文献7

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二级参考文献9

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