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1、東北農業(yè)大學博士學位論文銅缺乏癥奶牛神經損傷分子機理姓名:柴春彥申請學位級別:博士專業(yè):臨床獸醫(yī)學指導教師:石發(fā)慶2000.6.1博士學位論文英文摘要東北農業(yè)大學TI皿MOLECULARMECHAMSMOFNEU】哪B燈mC斟JI瓜YINDAIRYCATTLEWITHCOPPERDEFIC玎黼CYABSTRACTTheprinciplefocusofthisstudywastoclarifythemechanismofneuropath
2、icinjuryindairycattlewithcopperdeficiencyonconditionthattheprimaryfactorsofbiogeochemicalagentscausingcopperdeficiencyofdairycattlewereanalyzedsystematically,sowerethemechanismofcopperdysbolismandchangesofphysiologicalan
3、dbiochemicalindexesSpecimenwerecollectedfromninemorbidCOWSwithataxiaandsixclinicallyhealthyonestodeterminetheindicesmainlyrelatingtoneurallesionswhile25dairycattiewithsub—clinicalcopperdeficiencyfromaffectedareasweresele
4、ctedforcoppersupplementationexperimentand25clinicallyhealthyonesfromnonaffectedareaswereusedascontr01Thechiefmethodsandschemeswereshowedasfollows:TheconcentrationoffreeradicalsweredeterminedbyElectronSpinResonance(RSR),f
5、unctionofionpumpandsub—unitcompositionofcellmembranebyenzymeassayanddifferentialcentrifugationrespectively:MyelinbasicproteinandgangliosidewereseparatedandstudiedbySephadexG150andSephadex—G75gelcolumnchromatographyrespec
6、tivelyinneuraltissueofcowswithcopperdeficiency:phospholipidinneuralcel1membranebyhighperformance—thinlayerchromatography:ThemeansofEnzyme—LinkedImmunosorbentassay(elisa)wasfirstestablishedforanalyzingtheauto—antibodiesto
7、myelinbasicproteinandgangliosideincopperdeficientCOWSTheoligoclonebandproteinandsomeimportantisoenzymesweredetectedbypolymethacrylategelelectrophoresisPathologicalexaminationwascarriedoutbymicroscopicandultramicroscopico
8、bservationResultsandconclusions:1Thecontentofcopperinwater—earth—foodchainismarginallydeficientandhighleveLofmolybdenumindietsistheprimaryconditionresultinginsubsequentcopperdeficiencyhowever,thegeogrophicalenvironmentof
9、sufficientfluorineanddeficlentseleniamexacerbatethedurationofcopperdeficiencyTheoversynthesisofmetallothionein(MT)ismainlycausedbydepositionofironinliverduetocopperdeficiencyTheabnormalcomponentofMTinducesthedysbolismofc
10、opper,zinc,ironandmanganeseleadingtoimbalanceofmultidletraceelementswhilethenormalphysiologicalfunctionofnervoussystemiSaffectedThechangesofphysiologicalandbiochemicalindexesinserumweremanifestedbytheabnormityofhepaticfu
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