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改进的HBV感染模型动力学分析及数值模拟 被引量:4
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作者 陈晓 闵乐泉 孙起麟 《生物数学学报》 2013年第2期278-284,共7页
提出一个带有免疫响应项和转氨酶(ALT)项的乙肝病毒(HBV)感染数学模型.模型有三个平衡点:病毒清除平衡点Q_1,免疫耗竭平衡点Q_2和持续带毒平衡点Q_3.证明如果模型的基本病毒复制数R_0<1,则Q_1全局渐近稳定;如果R_0>1,则Q_2全局渐... 提出一个带有免疫响应项和转氨酶(ALT)项的乙肝病毒(HBV)感染数学模型.模型有三个平衡点:病毒清除平衡点Q_1,免疫耗竭平衡点Q_2和持续带毒平衡点Q_3.证明如果模型的基本病毒复制数R_0<1,则Q_1全局渐近稳定;如果R_0>1,则Q_2全局渐近稳定.这暗指若一个HBV感染者的R_0<1,则即使感染大量病毒也能最终痊愈.模型的抗HBV感染模拟结果发现替诺福韦(TDF)抗HBV感染治疗可能激活患者细胞因子介导的非细胞毒性HBV清除能力,直接杀伤HBV而不损伤感染肝细胞. 展开更多
关键词 hbv感染数学模型 基本病毒复制数 全局渐进稳定 抗hbv感染治疗 数值模拟
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Management of chronic hepatitis B in pregnancy 被引量:16
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作者 Guo-Rong Han Chuan-Lu Xu +1 位作者 Wei Zhao Yong-Feng Yang 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第33期4517-4521,共5页
Pregnancy associated with chronic hepatitis B (CHB) is a common and important problem with unique challenges. Pregnant women infected with CHB are different from the general population, and their special problems need... Pregnancy associated with chronic hepatitis B (CHB) is a common and important problem with unique challenges. Pregnant women infected with CHB are different from the general population, and their special problems need to be considered: such as the effect of hepatitis B virus (HBV) infection on the mother and fetus, the effect of pregnancy on replication of the HBV, whether mothers should take HBV antiviral therapy during pregnancy, the effect of these treatments on the mother and fetus, how to carry out immunization of neonates, whether it can induce hepatitis activity after delivery and other serious issues. At present, there are about 350 million individuals with HBV infection worldwide, of which 50% were infected during the perinatal or neonatal period, especially in HBV-endemic countries. Currently, the rate of HBV infection in thechild-bearing age group is still at a high level, and the infection rate is as high as 8.16%. Effective prevention of mother-to-child transmission is an important means of reducing the global burden of chronic HBV infection. Even after adopting the combined immunization measures, there are still 5%-10% of babies born with HBV infection in hepatitis B e antigen positive pregnant women. As HBV perinatal transmission is the main cause of chronic HBV infection, we must consider how to prevent this transmission to reduce the burden of HBV infection. In this population of chronic HBV infected women of childbearing age, specific detection, intervention and follow-up measures are particularly worthy of attention and discussion. 展开更多
关键词 Chronic hepatitis B Hepatitis B virus Mother-to-child transmission Perinatal transmission Pregnancy Vertical transmission Antiviral therapy
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