目的将深度测序法用于HCV感染者中不同基因型/亚型混合感染的检测。方法 2例HCV RNA阳性血浆标本(标记为1和2号标本),以NS5B和E1编码区为目的基因,经RT-PCR扩增后做sanger核苷酸序列测定,对其做基因分型发现2个编码区的分型结果后,重复3...目的将深度测序法用于HCV感染者中不同基因型/亚型混合感染的检测。方法 2例HCV RNA阳性血浆标本(标记为1和2号标本),以NS5B和E1编码区为目的基因,经RT-PCR扩增后做sanger核苷酸序列测定,对其做基因分型发现2个编码区的分型结果后,重复3次NS5B基因PCR扩增;合并3次PCR产物用Ion TorrentTM半导体测序仪做深度测序。获得的序列用Geneious软件的"The map to reference algorithm"和"De novo assembly"2种方法做序列分析和比对,并用Mega 5构建进化树。结果 sanger测序:1、2号标本NS5B基因分型均为1b,E1基因分型均为2a;深度测序:2个标本均为HCV 1b与2a混合感染,其中The map to reference algorithm(Geneious)方法显示,1号标本中1b占92.7%、2a占3.8%、没有比对到的序列(unused seq)占3.5%,2号标本相应为84.3%、5.4%,没有比对到的序列占10.3%;De novo assembly(Geneious)方法显示,1号标本中1b占96.3%、2a占3.7%,2号标本相应为94.1%、5.9%。结论深度测序技术可以精确地获得HCV混合感染的不同基因型/亚型信息,De novo assembly(Geneious)分析HCV的深度测序数据更为精确和直观。展开更多
Several studies have demonstrated that the outcome of chronic hepatitis C (CHC) infection is profoundly influenced by a variety of comorbidities. Many of these comorbidities have a significant influence on the respons...Several studies have demonstrated that the outcome of chronic hepatitis C (CHC) infection is profoundly influenced by a variety of comorbidities. Many of these comorbidities have a significant influence on the response to antiviral therapy. These comorbidities negatively affect the course and outcome of liver disease, often reducing the chance of achieving a sustained virological response with PEGylated interferon and ribavirin treatments. Comorbidities affecting response to antiviral therapy reduce compliance and adherence to inadequate doses of therapy. The most important comorbidities affecting the course of CHC include hepatitis B virus coinfection, metabolic syndrome, and intestinal bacterial overgrowth. Comorbidities affecting the course and response to therapy include schistosomiasis, iron overload, alcohol abuse, and excessive smoking. Comorbidities affecting response to antiviral therapy include depression, anemia, cardiovascular disease, and renal failure.展开更多
文摘目的将深度测序法用于HCV感染者中不同基因型/亚型混合感染的检测。方法 2例HCV RNA阳性血浆标本(标记为1和2号标本),以NS5B和E1编码区为目的基因,经RT-PCR扩增后做sanger核苷酸序列测定,对其做基因分型发现2个编码区的分型结果后,重复3次NS5B基因PCR扩增;合并3次PCR产物用Ion TorrentTM半导体测序仪做深度测序。获得的序列用Geneious软件的"The map to reference algorithm"和"De novo assembly"2种方法做序列分析和比对,并用Mega 5构建进化树。结果 sanger测序:1、2号标本NS5B基因分型均为1b,E1基因分型均为2a;深度测序:2个标本均为HCV 1b与2a混合感染,其中The map to reference algorithm(Geneious)方法显示,1号标本中1b占92.7%、2a占3.8%、没有比对到的序列(unused seq)占3.5%,2号标本相应为84.3%、5.4%,没有比对到的序列占10.3%;De novo assembly(Geneious)方法显示,1号标本中1b占96.3%、2a占3.7%,2号标本相应为94.1%、5.9%。结论深度测序技术可以精确地获得HCV混合感染的不同基因型/亚型信息,De novo assembly(Geneious)分析HCV的深度测序数据更为精确和直观。
文摘Several studies have demonstrated that the outcome of chronic hepatitis C (CHC) infection is profoundly influenced by a variety of comorbidities. Many of these comorbidities have a significant influence on the response to antiviral therapy. These comorbidities negatively affect the course and outcome of liver disease, often reducing the chance of achieving a sustained virological response with PEGylated interferon and ribavirin treatments. Comorbidities affecting response to antiviral therapy reduce compliance and adherence to inadequate doses of therapy. The most important comorbidities affecting the course of CHC include hepatitis B virus coinfection, metabolic syndrome, and intestinal bacterial overgrowth. Comorbidities affecting the course and response to therapy include schistosomiasis, iron overload, alcohol abuse, and excessive smoking. Comorbidities affecting response to antiviral therapy include depression, anemia, cardiovascular disease, and renal failure.
