GBV C/HGV is a newly identified virus associated with human hepatitis In this study, the nucleotide sequences of the partial NS5 gene of GBV C/HGV derived from sera of 8 Chinese patien...GBV C/HGV is a newly identified virus associated with human hepatitis In this study, the nucleotide sequences of the partial NS5 gene of GBV C/HGV derived from sera of 8 Chinese patients were determined The nucleotide homology among the 8 isolates were 92% on average On the basis of sequence analysis, two sets of oligonucleotide primers derived from highly conserved region of GBV C/HGV NS5 gene were designed to establish both sensitive and specific nested PCR for detection of GBV C/HGV RNA 253 Chinese patients were examined for the virus RNA GBV C/HGV RNA positive rates in patients infected with HBV, HCV and patients with chronic non B,non C hepatitis were 18 4%, 19 8% and 8 9% respectively This result suggested that HBV,HCV and GBV C/HGV shared the same transmission risk factors 8 patients with GBV C/HGV and HCV coinfection were retrospectively observed for the response to interferon Coinfection with GBV/HGV did not negatively influence the responsiveness of HCV, and GBV C/HGV was sensitive to interferon to a certain degree展开更多
对大理地区2014年流行的丙型肝炎病毒(Hepatitis C virus,HCV)的非结构蛋白5(Nonstructural protein 5,NS5)基因序列进行分析研究,以了解云南省大理地区流行的HCV基因型或基因亚型。2014年1～10月在大理州人民医院收集临床诊断丙型肝炎...对大理地区2014年流行的丙型肝炎病毒(Hepatitis C virus,HCV)的非结构蛋白5(Nonstructural protein 5,NS5)基因序列进行分析研究,以了解云南省大理地区流行的HCV基因型或基因亚型。2014年1～10月在大理州人民医院收集临床诊断丙型肝炎病人血清,共收集到血清48份;对这些标本进行病毒核酸提取和反转录合成cDNA,采用HCV NS5基因特异引物进行RT-PCR扩增,27份标本扩增阳性,序列分析结果显示:5株与基因3a型HCV位于同一进化簇中,核苷酸同源性在90.8%～98.3%之间;14株与基因3b型位于同一进化簇中,核苷酸同源性在87.5%～98.6%之间;5株与基因1b型HCV位于同一进化簇中,核苷酸同源性在91%～97.7%之间;3株与基因6n型位于同一进化簇中,核苷酸同源性在92.8%～96.5%之间,表明本次分离到的27株HCV病毒中,5株属于3a型,14株属于3b型,5株属于1b型,3株属于6n型等3个基因型4个基因亚型。以上研究提示大理地区至少存在1b、3a、3b和6n基因亚型HCV流行,但以基因3型(3a、3b)为主要流行HCV基因型或基因亚型。展开更多
文摘GBV C/HGV is a newly identified virus associated with human hepatitis In this study, the nucleotide sequences of the partial NS5 gene of GBV C/HGV derived from sera of 8 Chinese patients were determined The nucleotide homology among the 8 isolates were 92% on average On the basis of sequence analysis, two sets of oligonucleotide primers derived from highly conserved region of GBV C/HGV NS5 gene were designed to establish both sensitive and specific nested PCR for detection of GBV C/HGV RNA 253 Chinese patients were examined for the virus RNA GBV C/HGV RNA positive rates in patients infected with HBV, HCV and patients with chronic non B,non C hepatitis were 18 4%, 19 8% and 8 9% respectively This result suggested that HBV,HCV and GBV C/HGV shared the same transmission risk factors 8 patients with GBV C/HGV and HCV coinfection were retrospectively observed for the response to interferon Coinfection with GBV/HGV did not negatively influence the responsiveness of HCV, and GBV C/HGV was sensitive to interferon to a certain degree
文摘对大理地区2014年流行的丙型肝炎病毒(Hepatitis C virus,HCV)的非结构蛋白5(Nonstructural protein 5,NS5)基因序列进行分析研究,以了解云南省大理地区流行的HCV基因型或基因亚型。2014年1～10月在大理州人民医院收集临床诊断丙型肝炎病人血清,共收集到血清48份;对这些标本进行病毒核酸提取和反转录合成cDNA,采用HCV NS5基因特异引物进行RT-PCR扩增,27份标本扩增阳性,序列分析结果显示:5株与基因3a型HCV位于同一进化簇中,核苷酸同源性在90.8%～98.3%之间;14株与基因3b型位于同一进化簇中,核苷酸同源性在87.5%～98.6%之间;5株与基因1b型HCV位于同一进化簇中,核苷酸同源性在91%～97.7%之间;3株与基因6n型位于同一进化簇中,核苷酸同源性在92.8%～96.5%之间,表明本次分离到的27株HCV病毒中,5株属于3a型,14株属于3b型,5株属于1b型,3株属于6n型等3个基因型4个基因亚型。以上研究提示大理地区至少存在1b、3a、3b和6n基因亚型HCV流行,但以基因3型(3a、3b)为主要流行HCV基因型或基因亚型。
