1 型鸭肝炎病毒强毒株在雏鸭体内分布情况研究 |
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引用本文: | 赵丽丽,刘海燕,牛银杰,祝明皓,刘胜旺,陈洪岩.1 型鸭肝炎病毒强毒株在雏鸭体内分布情况研究[J].实验动物科学,2015,32(3):13-15. |
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作者姓名: | 赵丽丽 刘海燕 牛银杰 祝明皓 刘胜旺 陈洪岩 |
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基金项目: | 基金项目: 中国农业科学院哈尔滨兽医研究所院所长基金( No: 0302015013) |
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摘 要: | 摘要: 目的 利用建立的 Taq 荧光定量 RT-PCR 检测方法研究鸭肝炎病毒( DHV-1) 强毒株在感染雏鸭体内早期的动态分布规律。方法 本研究采用鸭肝炎病毒强毒株人工感染 3 日龄雏鸭,利用已建立的 Taq 荧光定量 RT-PCR方法,对接种 24 h 内 DHV-1 强毒株感染雏鸭的组织脏器进行了定量检测。结果 接种后 4 h 即可在雏鸭心、肝、脑、肺、胰腺、回肠、盲肠、直肠、法氏囊和脾脏组织中检测到一定水平的病毒 RNA,随着病程发展,RNA 拷贝数持续升高,接种 24 h 后,肝脏中的病毒 RNA 拷贝数为最高,达到 108. 81 copies/g,心、肺、肾、脾次之,约 107copies /g。结论DHV-1 强毒在雏鸭的早期感染雏鸭的实质器官、免疫器官和消化系统等均具有广泛的嗜性。
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关 键 词: | 鸭肝炎病毒 实时荧光定量 PCR 雏鸭 动态分布 |
Organic Distribution of Duck Challenge Hepatitis Virus Strain in Ducklings |
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Abstract: | Abstract: Objective To investigate the dynamic distribution of duck challenge hepatitis virus strain ( 161 /79 /V) in experimentally infected ducklings using the Taqman real-time fluorescent quantitative PCR. Method Ducklings were infected with the 161 / 79 / V strain at 3 - day age,and the virus RNAs were extracted from different organs within 24 hours and quantified using the fluorescent quantitative PCR method. Result DHV RNAs were detected in heart,liver,brain,lung,pancreas,ileum,cecum,rectum,bursa and spleen 4 hours after inoculation,and the RNA copies continuously increased. The highest copy of the DHV RNA was detected in liver ( 108. 81 copies /g) 24 h after inoculation,and the RNA copies were somewhat low in heart,lung,kidney and spleen ( about 107 copies /g) .Conclusion Our study indicates that the challenge DHV strain 161 / 79 / V is tissue or organ ecotropic,such as the solid organ,the immune organs and the digestive system of the infected ducklings. |
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Keywords: | DHV-1 real-time fluorescent quantitative PCR duckling dynamic distribution |
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