新生儿5微克重组乙型肝炎疫苗(酿酒酵母)初次免疫低应答者不同种类、剂量和剂次乙型肝炎疫苗再免疫的血清学效果分析

2013 
目的比较新生儿5微克(μg)重组乙型肝炎(乙肝)疫苗(酿酒酵母)(Hepatitis B Vaccine Madeby Recombinant Dexyribonucleic Acid(DNA)Techniquesin Saccharomyces Cererisiae Yeast,HepB-SCY)初次免疫(初免)低应答者,使用不同种类、剂量和剂次HepB再免疫的血清学效果。方法将HepB-SCY初免后低应答的[10毫国际单位/毫升(m IU/ml)〈抗乙肝病毒表面抗原抗体(Antibody to Hepatitis B Virus Surface Antigen,Anti-HBs)〈100m IU/ml]7~12个月龄儿童随机分为2组,按照0、1、6个月免疫程序,分别用5μg HepB-SCY和10μg重组HepB-汉逊酵母(HepB Made by Recombinant DNA Techniguesin Hansenula Polymorpha Yeast,HPY)进行再免疫,于再免疫1剂和3剂后1个月采集血标本,比较不同种类、剂量和剂次HepB再免疫后的血清Anti-HBs应答情况。结果 5μg HepB-SCY组和10μg HepB-HPY组1剂再免疫后,Anti-HBs阳转(≥100m IU/ml)率分别为91.81%(258/281)和94.32%(249/264),差异无统计学意义(Χ2=1.31,P=0.25);3剂再免疫后,Anti-HBs阳转率分别为93.72%(209/223)和98.54%(203/206),差异有统计学意义(Χ2=6.53,P=0.01);10μg HepB-HPY组3剂再免疫Anti-HBs阳转率高于1剂,差异有统计学意义(Χ2=5.60,P=0.02)。5μg HepB-SCY组和10μg HepB-HPY组1剂再免疫后,Anti-HBs几何平均浓度(Geometric Mean Concentration,GMC)分别为581.85m IU/ml[95%可信区间(Confidence Internal,CI)505.13m IU/ml~670.19m IU/ml]和1099.77m IU/ml(95%CI935.19m IU/ml~1293.90m IU/ml);3剂再免疫后,分别为522.22m IU/ml(95%CI452.79m IU/ml~602.98mIU/ml)和1218.33m IU/ml(95%CI1046.89m IU/ml~1417.15m IU/ml);1剂和3剂再免疫10μg HepB-HPY组Anti-HBsGMC均高于5μg HepB-SCY组(U值分别为34.09和64.06,P值均为0.00)。初免后Anti-HBs为10~49m IU/ml儿童,1剂和3剂再免疫后,Anti-HBs阳转率均低于初免Anti-HBs 50~99mIU/ml者,差异均有统计学意义(Χ2分别为21.81和6.62,P值分别为0.00和0.01)。结论 5μg Hep
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