SARS-CoV抗原免疫鸡后卵黄抗体效价变化研究  

Change of yolk antibody titers in hens immunized with SARS-CoV antigen

作　　者：何小维[1] 彭运平[1] 王继华[2] 李文美[2] 罗志刚[1] 

机构地区：[1]华南理工大学轻工与食品学院 [2]华南理工大学万孚生物技术有限公司,广东广州510640

出　　处：《中国病理生理杂志》2006年第8期1633-1635,共3页Chinese Journal of Pathophysiology

基　　金：广东省防治非典型肺炎科技攻关项目(粤科企[2003]156号);国家自然科学基金资助项目(No.29774009);广东省自然科学基金资助项目(No.970468)

摘　　要：目的:了解SARS-CoV抗原免疫鸡后,卵黄抗体效价的变化。方法:卵黄1∶1 600倍稀释后ELISA方法测定抗体效价。结果:Cutoff为0.21±0.05,在首次免疫26-28 d后,抗体效价达到最高(1∶1 600稀释(A450=1.3),并且抗体持续高效价(A450>0.8)。随着免疫时间的延长,抗体效价降低;间隔一定时间加强免疫,抗体效价又回升达到高峰。结论:SARS-CoV抗原持续免疫鸡,卵黄抗体持续保持高效价。AIM ： To observe the change of yolk antibody titers after immunizing hens with SARS - CoV antigen. METHODS： Yolk antibody diluted with water to 1 ： 1 600 was determined with ELISA methods. RESULTS ： The Cutoff is 0. 21 ±0. 05. After immunization, antibody titers in hens reached the peak in first 26 -28 day （A450 = 1.3 when antibody was diluted as 1：1 600）, and hold high titers （A450 〉0. 8）. The antibody titers decreased after the time of immunity. The increase and peaking of antibody titers were observed at intervals when repeated immunizations were given. CONCLUSION ： Yolk antibody kept high titers when hens were immunized with SARS -CoV antigen.

关 键 词：冠状病毒属 卵黄襄 抗体 

分 类 号：R363[医药卫生—病理学]