实用肝脏病杂志 ›› 2019, Vol. 22 ›› Issue (1): 41-44.doi: 10.3969/j.issn.1672-5069.2019.01.012

• 病毒性肝炎 • 上一篇    下一篇

慢性乙型肝炎患者HBV基因型分布及其耐药基因突变分析*

张欢欢, 杨欢, 沈思兰, 陈佳婕, 宣彬彬   

  1. 200335上海市 上海交通大学附属同仁医院检验科(张欢欢,陈佳婕,宣彬彬); 内分泌内科(杨欢); 感染病科(沈思兰)
  • 收稿日期:2018-05-03 出版日期:2019-01-10 发布日期:2019-01-16
  • 通讯作者: 杨欢,E-mail: YH1497@shtrhospital.com
  • 作者简介:张欢欢,女,35岁,大学本科,主管技师。主要从事分子遗传学诊断研究。E-mail:ZHH2504@shtrhospital.com
  • 基金资助:
    *上海市长宁区科学技术委员会科研基金资助项目(编号:CNKW2014Z02)

Distribution of HBV genotypes and drug-resistant mutations in patients with chronic hepatitis B

Zhang Huanhuan, Yang Huan, Shen Silan, et al.   

  1. Clinical Laboratory,Affiliated Tongren Hospital,Shanghai JiaoTong University,Shanghai 200335,China
  • Received:2018-05-03 Online:2019-01-10 Published:2019-01-16

摘要: 目的 探讨慢性乙型肝炎(CHB)患者HBV基因型及其耐药突变发生情况。方法 纳入240例接受核苷(酸)类似物单药或联合或序贯治疗的CHB患者,采用PCR扩增HBV逆转录(RT)区和序列测定鉴定耐药基因突变,采用HBV S基因测序法鉴定基因型。结果 在35例单用拉米夫定治疗的CHB患者中,发生耐药突变14例(40.0%),突变位点为rtL80I/V、rtVl73L、rtLl80M、rtM204V/I和rtV207I,23例单用阿德福韦治疗者发生耐药突变11例(47.8%),突变位点为rtAl81T/V、rtS213T/N、rtV214A、rtQ215S/H/P、rtl233V、rtN236T、rtP237H和rtN/H238A/K/D/S,70例单用恩替卡韦治疗者发生耐药突变10例(14.3%),突变位点为rtM204I,12例单用替比夫定治疗者发生耐药突变5例(41.7%),突变位点为rtI169T、rtL180M、rtT184G/S/A/I/L/F、rtS202I/G、rtM204V和rtM250V/I/L,100例接受联合或序贯治疗者发生耐药突变51例(51.0%),突变位点为rtA194T,恩替卡韦治疗患者耐药突变发生率最低(P<0.05);240例CHB患者中,HBV基因B型21例(8.8%)、C型216例(90.0)和D型3例(1.2%);在发生耐药突变的91例患者中,B型6例(6.6%)、C型83例(91.2%)和D型2例(2.2%,x2=1.22,P>0.05);在发生耐药突变的6例B型感染者中有2例(33.3%)和83例C型感染者中有15例(18.1%)发生了多重耐药突变。结论 检测CHB患者感染HBV基因型并及时获得耐药突变基因分布,将有助于指导临床治疗。

关键词: 慢性乙型肝炎, 核苷(酸)类似物, HBV基因型, 耐药突变

Abstract: Objective To investigate the distribution of HBV genotypes and drug-resistant mutations in patients with chronic hepatitis B(CHB). Methods 240 patients with CHB receiving monotherapy or swift from one to another of nuleos(t)ide analogues(NAs) for at least three months were recruited in this study,and the drug resistance mutation was assayed by sequencing reverse transcription area and the HBV genotypes were detected by sequencing HBV S gene. Results The resistant mutation rate in 35 patients treated by lamivudine was 40.0% with the resistant mutation sites of rtL80I/V,rtVl73L,rtLl80M,rtM204V/I,and rtV207I;the resistant mutation rate in 23 patients receiving adefovir was 47.8% with the mutation sites of rtAl81T/V,rtS213T/N, rtV214A,rtQ215S/H/P,rtl233V,rtN236T,rtP237H,rtN/H238A/K/D/S;the mutation rate in 70 receiving entecavir was 14.3% with the mutation sites of rtM204I;the resistant mutation rate in 12 patients receiving telbivudine 41.7% with the mutation sites of rtI169T,rtL180M,rtT184G/S/A/I/L/F,rtS202I/G,rtM204V and rtM250V/I/L;the resistance mutation rate in 100 patients with combination or swift therapy was 51.0% with the mutation sites of rtA194T;out of 240 patients with CHB,21(8.8%) were with type B,216(90.0%) were with type C,and 3 (1.2%) were with type D hepatitis B viral infection;out of the 91 patients with drug resistance mutations,6 (6.6%) were with type B,83(91.2%) were with type C,and 2(2.2%) were with type D infection;multidrug resistance mutations occurred in 2 (33.3%) of 6 patients with type B and 15(18.1%) of 83 type C infection. Conclusion Surveillance of HBV genotypes and resistance mutations in patients with CHB receiving NAs therapy might help improve the clinical response.

Key words: Hepatitis B, Nuleos(t)ide analogues, HBV genotypes, Drug resistance mutations