Isolation Identification and Bioinformatics of Differences Protein in Plasma of Cows Suffer from Fatty Liver with SELDI-TOF-MS Techniques
Scientia Agricultura Sinica(2016)
Abstract
【目的】脂肪肝是围产期奶牛主要代谢性疾病之一,50%产后奶牛受其影响。产后奶牛生产力降低、繁殖性能低下、免疫功能减弱、肝功能衰竭和过早死亡都与脂肪肝有关。表面增强激光解析/电离飞行时间质谱(SELDI-TOF-MS)是一种对生物样本蛋白质研究的新型高敏感性蛋白质组学方法,文章旨在探讨脂肪肝奶牛血浆蛋白质组学特征。【方法】于黑龙江某集约化养牛场选择产后7—28d,1—2胎次荷斯坦奶牛40头。清晨空腹尾静脉采血10m L,应用肝素抗凝(150U)迅速离心(3 000 r/min,5 min)分离血浆,置于-80℃冰箱冷冻保存。依据血浆甘油三酯(TG>0.20 mmol·L-1),血浆β-羟丁酸(BHBA>1.2mmol·L-1)浓度和临床症状,将其分为试验组(T)20头和健康对照组(C)20头。应用SELDI-TOF-MS技术测得血浆蛋白质谱,利用Ciphergen Protein Chip Software(Version 3.1.1)对在试验组和对照组所有样品中得到的峰图进行分析,得到原始数据。将两组之间的数据峰值做wilcoxon sum rank test统计检验,用计...
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Key words
dairy cows,SELDI-TOF-MS,fatty liver,differential expression protein,plasma proteomics
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