HBV前C/BCP区变异对HBeAg阳性慢乙肝患者干扰素治疗早期应答的影响  

Effec ts of the mutations of hepatitis B virus precore and basal core promoter on early response of patienst with HBeAg-positi ve chronic hepatitis B

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作  者:孔歌 成利伟 王霞[1] 傅涓涓[1] 李丽[1] 张言超[2] 潘修成[1] 

机构地区:[1]徐州医学院附属医院感染科,江苏 徐州221002 [2]徐州医学院附属医院感染科实验室

出  处:《徐州医学院学报》2014年第2期92-95,共4页Acta Academiae Medicinae Xuzhou

基  金:江苏省临床医学科技专项-新型临床诊疗技术攻关项目(BL2012043)

摘  要:目的:研究HBV DNA前C区1896位变异,BCP区1762/1764位变异与干扰素α治疗应答的关系。方法以41例接受干扰素治疗的HBeAg阳性慢性乙型肝炎(慢乙肝)患者为研究对象。治疗前取患者外周血清,采用PCR 技术扩增前C区、BCP区,并测序分析。同时监测治疗0、12、24周患者外周血ALT、HBsAg、HBeAg、HBV DNA水平。结果①PC/BCP区变异(突变型,non-WT)患者HBeAg转阴率( n=13,72.2%)高于未发生PC/BCP变异(野生型,WT)患者(n=4,28.8%)(P=0.014);②突变组HBsAg降低( n=5,56.7%)、HBVDNA转阴(n=8,53.5%),完全应答( n =5,62.5%),野生组 HBsAg 降低( n =6,43.3%)、HBV DNA 转阴( n =7,46.7%),完全应答(n=3,37.5%),2组间无明显差异。结论突变型患者HBeAg转阴率高于野生型患者。Objective To investigate the relationship between the precore 1896 ando/r the basal core promoter (BCP) 1762/1764 mutations and patient response for IFN-αtreatment.Me thods Forty-one patients with HBeAg -positive chronic hepatitis B who received IFN -αtherapy were enrolled in this study .Serum HBVDNA was extracted from peripheral blood before treatment , then polymerase chain reaction ( PCR) was performed to sequence PC/BCP gene frag-ments.Meanwhile, we monitored the amounts of ALT , HBsAg, HBeAg and HBV DNA at weeks 0, 12 and 24.Results① More patients with PC/BCP mutants ( non -wild -type, non -WT) present HBeAg negative status ( n=13, 72.2 %) than those without PC/BCP mutation (wild-type, WT) ( n=4, 28.8%) (P=0.04).②For non-WT pa-tients , their levels of HBsAg are decreased (n =5, 56.7%), while they manifest HBVDNA negative status (n =8, 53.5%), and complete response (n=5, 62.5%).For WT patients, their levels of HBsAg are decreased (n=6, 43.3%), while they also manifest HBV DNA negative status ( n =7, 46.7%), and complete response ( n =3, 37.5%).There is no significant difference between the two groups .Conclusion More non -WT patients present HBeAg negative status than WT patients .

关 键 词:PC BCP区变异 HBEAG血清转换 完全应答 

分 类 号:R512.62[医药卫生—内科学]

 

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