[ Objective] To investigate the blocking effects of spleen vaccine on vertical transmission of classical swine fever virus （CSFV） in sows. [ Method] Sows infected by CSFV were selected from three large-scale pig far...[ Objective] To investigate the blocking effects of spleen vaccine on vertical transmission of classical swine fever virus （CSFV） in sows. [ Method] Sows infected by CSFV were selected from three large-scale pig farms and they were randomly divided into group Ⅰ, group Ⅱ and control group. The sows in the group Ⅰ were vaccinated with CSF spleen vaccine at a 1.5 times normal dose per pig; those in the group Ⅱ were vaccinated with CSF spleen vaccine at a 2.0 times normal dose per pig; and those in the control group were vaccinated with cell vaccine at a 4.0 times normal- dose per pig. The CSF antigens of piglets were detected by enzyme-linked immunosorbent assay （ELISA）. [ Result] The antigen positive rate of piglets in the experimental group （18.5%） was significantly lower than that in the control group （48.1% ）. No significant difference was found be- tween the group Ⅰ and the group Ⅱ. [ Condmion] CSF spleen vaccine has good blocking effects on vertical transmission of CSFV in sows.展开更多
乙型肝炎病毒(HBV)感染是全球性公共卫生问题,母婴传播是其重要的传播途径,给婴幼儿及其成年后的健康造成了严重危害。尽管全球普及的免疫预防策略已经可以预防90%以上的母婴传播,但不能完全阻断HBV宫内感染所引起的母婴传播。该文通过...乙型肝炎病毒(HBV)感染是全球性公共卫生问题,母婴传播是其重要的传播途径,给婴幼儿及其成年后的健康造成了严重危害。尽管全球普及的免疫预防策略已经可以预防90%以上的母婴传播,但不能完全阻断HBV宫内感染所引起的母婴传播。该文通过中国期刊全文数据库(CNKI)、万方医学网、中国生物医学文献数据库(CBM)、PubMed、Web of Science等数据库,以乙型肝炎病毒、母婴传播/垂直传播、宫内感染、阻断干预、Hepatitis B Virus、Mother-to-Child Transmission/Vertical transmission、Intrauterine infection、Prevention/Intervention等关键词检索了近10年国内外的相关文献,综述了HBV母婴传播机制及阻断技术的相关研究进展,旨在更好地指导临床预防HBV母婴传播围产保健管理工作,以促进实现消除HBV母婴传播的全球防控目标。展开更多
目的:研究拉米夫定(Lamivudine,LAM)联合乙型肝炎免疫球蛋白(hepatitis B immunoglobulin,HBIG)对乙型肝炎病毒(hepatitis B virus,HBV)母婴传播的阻断效果及安全性。方法:回顾性选取2017年12月—2019年12月麻城市人民医院105例HBV感染...目的:研究拉米夫定(Lamivudine,LAM)联合乙型肝炎免疫球蛋白(hepatitis B immunoglobulin,HBIG)对乙型肝炎病毒(hepatitis B virus,HBV)母婴传播的阻断效果及安全性。方法:回顾性选取2017年12月—2019年12月麻城市人民医院105例HBV感染孕妇为样本。根据治疗方案不同将其分为联合组(n=74)和LAM组(n=31)。LAM组接受LAM治疗,联合组接受LAM联合HBIG治疗。比较两组治疗前及临产前HBV标志物(HBVM)水平、HBV-DNA载量、肝功能指标,新生儿健康情况,新生儿HBV感染情况。分析药物安全性。结果:临产前,两组HBcAb、HBeAg及HBV-DNA水平均明显降低(P<0.05),且联合组HBeAg和HBV-DNA水平均低于LAM组(P<0.05)。临产前,两组谷丙转氨酶(ALT)、谷草转氨酶(AST)及总胆红素(TBIL)水平均明显升高(P<0.05),两组ALT、AST及TBIL水平比较差异均无统计学意义(P>0.05)。两组新生儿体重、10 min Apgar评分及新生儿肺炎、窒息和畸形发生率比较差异均无统计学意义(P>0.05)。接种疫苗前,联合组新生儿HBsAg阳性率低于LAM组(P<0.05),接种疫苗后1个月,两组HBsAg阳性率均明显降低,两组HBs Ag和抗-HBs阳性率比较差异均无统计学意义(P>0.05)。治疗期间,联合组孕妇发生一过性ALT水平轻度升高1例(1.89%),新生儿黄疸1例(1.89%),肌酸激酶升高2例(3.77%);LAM组孕妇未见明显异常,新生儿发生高胆红素血症1例(1.89%),均未予特殊处理,观察1周后自行恢复正常。结论:LAM联合HBIG阻断HBV母婴垂直传播可有效降低孕妇血液中病毒滴度和复制水平,降低新生儿宫内感染风险。展开更多
基金supported by the Scientific Research Project Foundation of Jiangxi Provincial Education Department(GJJ08372)
文摘[ Objective] To investigate the blocking effects of spleen vaccine on vertical transmission of classical swine fever virus （CSFV） in sows. [ Method] Sows infected by CSFV were selected from three large-scale pig farms and they were randomly divided into group Ⅰ, group Ⅱ and control group. The sows in the group Ⅰ were vaccinated with CSF spleen vaccine at a 1.5 times normal dose per pig; those in the group Ⅱ were vaccinated with CSF spleen vaccine at a 2.0 times normal dose per pig; and those in the control group were vaccinated with cell vaccine at a 4.0 times normal- dose per pig. The CSF antigens of piglets were detected by enzyme-linked immunosorbent assay （ELISA）. [ Result] The antigen positive rate of piglets in the experimental group （18.5%） was significantly lower than that in the control group （48.1% ）. No significant difference was found be- tween the group Ⅰ and the group Ⅱ. [ Condmion] CSF spleen vaccine has good blocking effects on vertical transmission of CSFV in sows.
文摘乙型肝炎病毒(HBV)感染是全球性公共卫生问题,母婴传播是其重要的传播途径,给婴幼儿及其成年后的健康造成了严重危害。尽管全球普及的免疫预防策略已经可以预防90%以上的母婴传播,但不能完全阻断HBV宫内感染所引起的母婴传播。该文通过中国期刊全文数据库(CNKI)、万方医学网、中国生物医学文献数据库(CBM)、PubMed、Web of Science等数据库,以乙型肝炎病毒、母婴传播/垂直传播、宫内感染、阻断干预、Hepatitis B Virus、Mother-to-Child Transmission/Vertical transmission、Intrauterine infection、Prevention/Intervention等关键词检索了近10年国内外的相关文献,综述了HBV母婴传播机制及阻断技术的相关研究进展,旨在更好地指导临床预防HBV母婴传播围产保健管理工作,以促进实现消除HBV母婴传播的全球防控目标。
文摘目的:研究拉米夫定(Lamivudine,LAM)联合乙型肝炎免疫球蛋白(hepatitis B immunoglobulin,HBIG)对乙型肝炎病毒(hepatitis B virus,HBV)母婴传播的阻断效果及安全性。方法:回顾性选取2017年12月—2019年12月麻城市人民医院105例HBV感染孕妇为样本。根据治疗方案不同将其分为联合组(n=74)和LAM组(n=31)。LAM组接受LAM治疗,联合组接受LAM联合HBIG治疗。比较两组治疗前及临产前HBV标志物(HBVM)水平、HBV-DNA载量、肝功能指标,新生儿健康情况,新生儿HBV感染情况。分析药物安全性。结果:临产前,两组HBcAb、HBeAg及HBV-DNA水平均明显降低(P<0.05),且联合组HBeAg和HBV-DNA水平均低于LAM组(P<0.05)。临产前,两组谷丙转氨酶(ALT)、谷草转氨酶(AST)及总胆红素(TBIL)水平均明显升高(P<0.05),两组ALT、AST及TBIL水平比较差异均无统计学意义(P>0.05)。两组新生儿体重、10 min Apgar评分及新生儿肺炎、窒息和畸形发生率比较差异均无统计学意义(P>0.05)。接种疫苗前,联合组新生儿HBsAg阳性率低于LAM组(P<0.05),接种疫苗后1个月,两组HBsAg阳性率均明显降低,两组HBs Ag和抗-HBs阳性率比较差异均无统计学意义(P>0.05)。治疗期间,联合组孕妇发生一过性ALT水平轻度升高1例(1.89%),新生儿黄疸1例(1.89%),肌酸激酶升高2例(3.77%);LAM组孕妇未见明显异常,新生儿发生高胆红素血症1例(1.89%),均未予特殊处理,观察1周后自行恢复正常。结论:LAM联合HBIG阻断HBV母婴垂直传播可有效降低孕妇血液中病毒滴度和复制水平,降低新生儿宫内感染风险。
