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Preliminary Application on Test Paper of Gold-labelled Antibody against Fibronectin EⅢA Splicing Variant
Author(s): LIU Ning-guo, CHEN Yi-jiu, LU Ren-quan, HUANG Xiao-hua, ZHANG Jian-hua
Pages: 81-
83
Year: 2006
Issue:
2
Journal: JOURNAL OF FORENSIC MEDICINE
Keyword: 纤维连接蛋白; 可变剪接; 额外结构域; EⅢA; 损伤时间推断; 胶体金;
Abstract: 目的开发可用于法医病理学损伤时间推断临案的金标Fn-EⅢA单克隆抗体试纸条.方法选取两种敏感、特异的片段特异性Fn-EⅢA单克隆抗体,ELISA方法进行效价观察,标记胶体金后分别采用渗滤法及层析法检测其效果,抽提阳性对照中目标蛋白进行初步测评,并以大鼠皮肤损伤模型进行验证.结果两种单克隆抗体均可用于Fn-EⅢA肽段的金标法检测,以IST9搭配Fn多抗效果最佳;正常皮肤组织样本中试纸条检测线不显色,损伤3h后显色,随损伤时间延长,染色逐渐加深.结论该试纸条可靠性、可重复性以及可操作性均佳,可望在法医学损伤时间推断有广阔的应用.
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