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时间:2020-04-27
《大鼠毒死蜱重复染毒后血清胆碱酯酶活性及其变化规律-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、江苏预防医学2014年3月第25卷第2期JiangsuJPrevMed,March,2014,Vo1.25,Nc.2·1··论著·大鼠毒死蜱重复染毒后血清胆碱酯酶活性及其变化规律赵敏娴,姚欣雅,吴惠,乙楠楠,王灿楠东南大学公共卫生学院营养与食品卫生系/环境医学工程教育部重点实验室,南京210009摘要:目的了解毒死蜱(Chlorpyrifos,CPF)重复染毒后大鼠血清中乙酰胆碱酯酶(ACHE)和丁酰胆碱酯酶(BuChE)在不同时间点的活性情况,并分析两酶活性关系。方法将6O只成年雌性SD大鼠按体重随机分
2、成5组,每组12只,分别为毒死蜱组:2.50、5.00、10.00、2O.00mg/kg及1个正常对照组。连续灌胃染毒10d,在第2、4、7:和11d分别对部分动物(每次每组3只)收集血液样本,测定AChE、BuChE活性。结果血清中AChE、BuChE活性随着毒死蜱剂量、染毒时间增加而降低,呈现一定程度上的相关性。血清中AChE活性和BuChE活性呈现出正相关性(r一0.872,P3、E抑制程度会增加。血清BuChE可考虑作为有机磷农药暴露的标志物。关键词:毒死蜱;重复染毒;时间点;乙酰胆碱酯酶;丁酰胆碱酯酶中图分类号:R446.1文献标识码:A文章编号:1006—9070(2014)02—0001—03Analysis0fchOlinesterasesactivityandtheirvariationinratserumuponrepeatedexposuretochlorpyrifosZHAOMin—xian,YAOXin-ya,WUHui,YINan—nan,WANGCan—na4、nSoutheastUniversity,CollegeofPublicHealth,NutritionandFoodHygieneDepartment,Keylaboratoryofmedicalengineeringenvironment,Nanjing21000~),ChinaAbstract:ObjectiveTostudyactivityofacetylcholinesterase(ACHE)andbutyry1cho1inesterase(BuChE)inratserumatdifferent5、timepointsafterrepeatedexposuretOchlorpyrif。s(CPF);toanalyzerelationshipoftheactivityofAChEandBuChE.Methods60femaleadultSDratswererandomlydividedinto5groupsbyweight,12ratsineachgroup:4chlorpyrifosdosegroups(dosage:2.50、5.O0、10.00、2O.00mg/kg)and1controlgro6、up.RatsinallgroupsweiesuccessivelytreatedwithCPFfor10daysbygavage.Bloodsamplesof3ratsineachgroupwerecollectedat2“,4,7and11d,activityofAChEandBuChEwasdetermined.ResultsSerumAChEandBuChEactivitydecreaseduponprolongedexposuretimeorwhenchlorpyri—losdosageincr7、easedinadose-dependentmanner.ActivityofAChEandBuChEinserumshowedapositivecorrelation(r一0.872,P<0.01),withsimilartrenduponrepeatedexposure.However,BuChEdemonstratedgreaterinhibitioneffectcorn—paredtoAChE(P8、poni0drepeatedexposuretOCPF.SerumBuChEcanbeconsideredasasensitiveindicatorfor0rganophosphoruspesticideexposure.Keywords:chlorpyrifos;repeatedexposure;timepoint;acetylch。Iinesterase;butyrylch0linesterase有机磷农药(organop
3、E抑制程度会增加。血清BuChE可考虑作为有机磷农药暴露的标志物。关键词:毒死蜱;重复染毒;时间点;乙酰胆碱酯酶;丁酰胆碱酯酶中图分类号:R446.1文献标识码:A文章编号:1006—9070(2014)02—0001—03Analysis0fchOlinesterasesactivityandtheirvariationinratserumuponrepeatedexposuretochlorpyrifosZHAOMin—xian,YAOXin-ya,WUHui,YINan—nan,WANGCan—na
4、nSoutheastUniversity,CollegeofPublicHealth,NutritionandFoodHygieneDepartment,Keylaboratoryofmedicalengineeringenvironment,Nanjing21000~),ChinaAbstract:ObjectiveTostudyactivityofacetylcholinesterase(ACHE)andbutyry1cho1inesterase(BuChE)inratserumatdifferent
5、timepointsafterrepeatedexposuretOchlorpyrif。s(CPF);toanalyzerelationshipoftheactivityofAChEandBuChE.Methods60femaleadultSDratswererandomlydividedinto5groupsbyweight,12ratsineachgroup:4chlorpyrifosdosegroups(dosage:2.50、5.O0、10.00、2O.00mg/kg)and1controlgro
6、up.RatsinallgroupsweiesuccessivelytreatedwithCPFfor10daysbygavage.Bloodsamplesof3ratsineachgroupwerecollectedat2“,4,7and11d,activityofAChEandBuChEwasdetermined.ResultsSerumAChEandBuChEactivitydecreaseduponprolongedexposuretimeorwhenchlorpyri—losdosageincr
7、easedinadose-dependentmanner.ActivityofAChEandBuChEinserumshowedapositivecorrelation(r一0.872,P<0.01),withsimilartrenduponrepeatedexposure.However,BuChEdemonstratedgreaterinhibitioneffectcorn—paredtoAChE(P8、poni0drepeatedexposuretOCPF.SerumBuChEcanbeconsideredasasensitiveindicatorfor0rganophosphoruspesticideexposure.Keywords:chlorpyrifos;repeatedexposure;timepoint;acetylch。Iinesterase;butyrylch0linesterase有机磷农药(organop
8、poni0drepeatedexposuretOCPF.SerumBuChEcanbeconsideredasasensitiveindicatorfor0rganophosphoruspesticideexposure.Keywords:chlorpyrifos;repeatedexposure;timepoint;acetylch。Iinesterase;butyrylch0linesterase有机磷农药(organop
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