【内容简介】2018年欧洲医学和生物学超声协会联盟(European Federation of Societies for Ultrasound in Medicine and Biology,EFSUMB)发表了超声弹性成像在肝外组织的应用指南和建议,阐述了超声弹性成像的使用,总结了2013年以来相关...【内容简介】2018年欧洲医学和生物学超声协会联盟(European Federation of Societies for Ultrasound in Medicine and Biology,EFSUMB)发表了超声弹性成像在肝外组织的应用指南和建议,阐述了超声弹性成像的使用,总结了2013年以来相关领域超声弹性成像临床应用经验,对既往指南和建议做出了更新。展开更多
Background/Aims:Hepatitis B virus (HBV) infection in extrahepatic tissues is controversial. To clarify whether episomal HBV can infect nonhepatic tissues, we investigated the molecular forms of HBV in the lymphatic ce...Background/Aims:Hepatitis B virus (HBV) infection in extrahepatic tissues is controversial. To clarify whether episomal HBV can infect nonhepatic tissues, we investigated the molecular forms of HBV in the lymphatic cells of inactive HBV carriers who lacked viremia, thus avoiding contamination with HBV genomes originating from the viral particles present in the serum. Methods:We assessed HBV genome, replicative forms, and viral integrants in the liver, serum, peripheral blood mononuclear cells (PBMC), and lymph nodes of 21 inactive HBV carriers who tested positive for antibodies against the HBV core antigen (anti-HBc). Results:Of the 21 anti-HBc positive individuals, HBV-DNA was detected in liver samples of 15 (71.4%), in the lymph nodes of 11 (52.4%), and in PBMC of three (14.3%). However, none of the detected HBV genomes from lymphatic tissues included the replicative forms of HBV. In one case, integrated HBV was present in the lymphatic tissues and the host-viral junction was present in the intronic sequences of chromosome 17. Conclusions:These data suggest that human lymphatic tissues cannot support viral replication in anti-HBc positive inactive HBV carriers, while retaining the viral genome as an integrated form.展开更多
文摘【内容简介】2018年欧洲医学和生物学超声协会联盟(European Federation of Societies for Ultrasound in Medicine and Biology,EFSUMB)发表了超声弹性成像在肝外组织的应用指南和建议,阐述了超声弹性成像的使用,总结了2013年以来相关领域超声弹性成像临床应用经验,对既往指南和建议做出了更新。
文摘Background/Aims:Hepatitis B virus (HBV) infection in extrahepatic tissues is controversial. To clarify whether episomal HBV can infect nonhepatic tissues, we investigated the molecular forms of HBV in the lymphatic cells of inactive HBV carriers who lacked viremia, thus avoiding contamination with HBV genomes originating from the viral particles present in the serum. Methods:We assessed HBV genome, replicative forms, and viral integrants in the liver, serum, peripheral blood mononuclear cells (PBMC), and lymph nodes of 21 inactive HBV carriers who tested positive for antibodies against the HBV core antigen (anti-HBc). Results:Of the 21 anti-HBc positive individuals, HBV-DNA was detected in liver samples of 15 (71.4%), in the lymph nodes of 11 (52.4%), and in PBMC of three (14.3%). However, none of the detected HBV genomes from lymphatic tissues included the replicative forms of HBV. In one case, integrated HBV was present in the lymphatic tissues and the host-viral junction was present in the intronic sequences of chromosome 17. Conclusions:These data suggest that human lymphatic tissues cannot support viral replication in anti-HBc positive inactive HBV carriers, while retaining the viral genome as an integrated form.