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Transformation of hepatitis B serologic markers in babies born to hepatitis B surface antigen positive mothers

查看全文 作  者:Jian-[1]SheWang;[2]HuiChen;Qi-[1]RongZhu 高影响力作者 机构地区:[1]LaboratoryofInfectiousDiseases,Children'sHospitalofFudanUniversity;DepartmentofPediatrics,ShanghaiMedicalCollegeFudanUniversity,Shanghai200032,China;[2]DepartmentofInfectiousDiseases,Children'sHospitalofFudanUniversity;DepartmentofPediatrics,ShanghaiMedicalCollegeFudanUniversity,Shanghai200032,China高影响力机构 出  处:《World Journal of Gastroenterology》索引2005年第11卷第23期,共4页高影响力期刊 基  金:Supported by the Key-Subject Construction Project of Ministry of Public Health of China,No.97030223the young researcher grant from Children's Hospital of Fudan University,No.QN2001-5 Co-first-authors: Jian-She Wang and Hui Chen 摘  要:AIM: To better understand the clinical significance of hepatitis B serologic markers in babies born to hepatitis B surface antigen (HBsAg) positive mothers, the incidence of maternal serologic markers of hepatitis B via placenta and its transformation in these babies were investigated.METHODS: Mothers with positive HBsAg were selected in the third trimester of pregnancy. Their babies received immunoprophylaxis with hepatitis B immunoglobulin and hepatitis B vaccine after birth, and were consecutively followed up for hepatitis B serologic markers and HBV DNA at birth, mo 1, 4, 7, 12, and 24. RESULTS: Forty-two babies entered the study, including 16 born to hepatitis B e antigen (HBeAg)-positive HBsAg carrier mothers and 26 to HBeAg-negative HBsAg carrier mothers. Apart from four babies born to HBeAg-positive carrier mothers and demonstrated persistent positive HBeAg eventually became HBV carriers, all other babies developed anti-HBs before 12 mo of age. Among the other 12 babies born to HBeAg-positive carrier mothers,HBeAg was detected in 7 at birth, in 4 at mo 1, and in none of them thereafter. No antibody response to the transplacental HBeAg was detected. Among the babies born to HBeAg-negative carrier mothers, anti-HBe was detected 100% at birth and mo 1, in 88.5% at mo 4, in 46.2% at mo 7, in 4.2% at mo 12 and none in mo 24. Among all the immunoprophylaxis-protected babies born to either HBeAg-positive or HBeAg-negative carrier mothers, anti-HBc was detected in 100% at birth, mo 1 and mo 4, in 78.9% at mo 7, in 36.1% at mo 12 and in none at mo 24.CONCLUSION: HBeAg can pass through human placenta from mother to fetus and become undetectable before 4 mo of age, but no antibodies response to the transplacental HBeAg can be detected till mo 24 in the immunoprophylaxisprotected babies. The sole existence of anti-HBe before 1 year of age or anti-HBc before 2 years of age in babies born to HBsAg carrier mothers may simply represent the transplacental maternal antibodies, instead of indicators of HBV infection status. 关 键 词:乙型肝炎病毒 血清学标记 新生儿 病毒表面抗原 母婴传播
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