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首页> 中文期刊> 《中国医学科学杂志：英文版》 >Comparison ofβ-Amyloid Plaque Labeling Methods:Antibody Staining,Gallyas Silver Staining,and Thioflavin-S Staining

Comparison ofβ-Amyloid Plaque Labeling Methods:Antibody Staining,Gallyas Silver Staining,and Thioflavin-S Staining

         
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Objective To evaluate senile plaque formation and compare the sensitivity of three differentβ-amyloid(Aβ)labeling methods(antibody staining,Gallyas silver staining,and thioflavin-S staining)to detect Aβdeposition.Methods APPswe/PSEN1dE9 transgenic mice(APP/PS1)of different ages were used to examine spatiotemporal changes in Aβplaque deposition.Antibody staining,Gallyas silver staining,and thioflavin-S staining were used to detect Aβplaque deposition in the same brain region of adjacent slices from model mice,and the results were compared.Results With aging,Aβplaques first appeared in the cortex and then the deposition increased throughout the whole brain.Significantly greater plaque deposition was detected by 6E10 antibody than that analyzed with Gallyas silver staining or thioflavin-S staining(P<0.05).Plaque deposition did not show significant difference between the APP/PS1 mice brains assayed with Gallyas silver staining and ones with thioflavin-S staining(P=0.0033).Conclusions The APP/PS1 mouse model of Alzheimer’s disease could mimick the progress of Aβplaques occurred in patients with Alzheimer’s disease.Antibody detection of Aβdeposition may be more sensitive than chemical staining methods.

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