阿德福韦酯治疗前后乙型肝炎病毒Pre-S区基因突变分析
发布时间:2021-11-25 04:45
乙型肝炎病毒(hepatitis B virus,HBV)感染是全球性的重要公共卫生问题,严重影响人类健康。HBV逆转录酶缺乏校正功能,在选择压力作用下,HBV在复制过程中会产生大量变异株。Pre-S区是HBVDNA中变异最大的区段,容易出现缺失突变。Pre-S区缺失热点区域为Pre-S1的3’末端和Pre-S2的5’末端,可伴有Pre-S2起始密码子的缺失或点突变,而且在B和C基因型中发生频率高。大量研究证实,Pre-S区缺失突变可作为一个独立危险因素,与肝细胞癌发生具有密切关系。因此有效抑制HBV DNA尤其是Pre-S区缺失突变毒株的复制可能有利于减少HCC的发生。核苷(酸)类似物是临床上抗HBV的常用药物,能够抑制HBV DNA复制,降低血清ALT水平,改善肝组织学。但是有研究表明,Pre-S区缺失突变也可在使用核苷(酸)类似物治疗是出现,而且Pre-S区缺失突变毒株对于这类药物的反应性并不清楚。因此,解决这一疑问是关系到临床用药的安全性问题。目的:观测阿德福韦酯(ADV)治疗慢性HBV患者基线和48W时血清中HBV DNA Pre-S区突变情况。方法:提取61位患者基线和48...
【文章来源】:重庆医科大学重庆市
【文章页数】:85 页
【学位级别】:博士
【部分图文】:
HBV引物设计
42图 5 重组体 Pre-S 区核苷酸序列Fig. 5. Nucleotide sequences of the Pre-S region of recombinat clones from our study.Reference sequences of genotype B (accession number: D00330) and genotype C (accessionnumber: AY040627) were displayed at the top. A slash represents a deleted nucleotide base.
45图 6 相似性分析Fig. 6. Similarity analysis (simplot) based Pre-S region of recominant clones compared withreference sequences. (window: 100bp, step: 10 bp. )
【参考文献】:
期刊论文
[1]乙型肝炎病毒大S蛋白基因纵向研究方法及应用[J]. 余南,崔进,周国宝,张云娇,陈晶砺. 世界华人消化杂志. 2009(27)
[2]Characteristics of general distribution of hepatitis B virus genotypes in China[J]. Chang-Tai Zhu and Chun-Lei Dong Department of Laboratory Medicine,Changzhou Cancer Hospital,Suzhou University,Changzhou 213001,China. Hepatobiliary & Pancreatic Diseases International. 2009(04)
[3]Viral and cellular determinants involved in hepadnaviral entry[J]. Dieter Glebe,Stephan Urban. World Journal of Gastroenterology. 2007(01)
本文编号:3517426
【文章来源】:重庆医科大学重庆市
【文章页数】:85 页
【学位级别】:博士
【部分图文】:
HBV引物设计
42图 5 重组体 Pre-S 区核苷酸序列Fig. 5. Nucleotide sequences of the Pre-S region of recombinat clones from our study.Reference sequences of genotype B (accession number: D00330) and genotype C (accessionnumber: AY040627) were displayed at the top. A slash represents a deleted nucleotide base.
45图 6 相似性分析Fig. 6. Similarity analysis (simplot) based Pre-S region of recominant clones compared withreference sequences. (window: 100bp, step: 10 bp. )
【参考文献】:
期刊论文
[1]乙型肝炎病毒大S蛋白基因纵向研究方法及应用[J]. 余南,崔进,周国宝,张云娇,陈晶砺. 世界华人消化杂志. 2009(27)
[2]Characteristics of general distribution of hepatitis B virus genotypes in China[J]. Chang-Tai Zhu and Chun-Lei Dong Department of Laboratory Medicine,Changzhou Cancer Hospital,Suzhou University,Changzhou 213001,China. Hepatobiliary & Pancreatic Diseases International. 2009(04)
[3]Viral and cellular determinants involved in hepadnaviral entry[J]. Dieter Glebe,Stephan Urban. World Journal of Gastroenterology. 2007(01)
本文编号:3517426
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