林榮+劉燕飛+陳溫茹+文金生+王彬
摘要] 目的 了解溫州市無償獻血人群丙型肝炎病毒感染及其基因分型的情況。 方法 對2010年1月~2012年12月溫州中心血站采集的無償獻血者血液進行丙型病毒性肝炎病毒抗體(抗-HCV)的檢測,并對檢驗結果進行統計分析,同時采用RT巢式-PCR法,對2012年度68例HCV-IgG陽性者進行HCV-RNA的檢測及基因分型。結果 溫州市無償獻血者丙型肝炎病毒抗體不合格率各年份基本保持穩定,差異無統計學意義(P<0.05);而68例抗-HCV陽性標本的基因分型結果顯示,2a單陽性為4.41%,1b單陽性為30.88%,1b和2a雙陽性為60.29%,1b總陽性率為91.18%,2a總陽性率為 64.71%。 結論 溫州市無償獻血者HCV感染率不高,總體趨穩,所感染的HCV基因型以1b型占優勢,并且基因型1b和2a混合感染率較高。
[關鍵詞] 獻血者;丙型肝炎病毒;感染率;聚合酶鏈反應;基因分型
[中圖分類號] R512.6;R457.1 [文獻標識碼] B [文章編號] 1673-9701(2014)02-0151-03
Study on the infection of hepatitis C virus and its genotypes among voluntary blood donors in Wenzhou
LIN Rong1 LIU Yanfei1 CHEN Wenru1 WEN Jinsheng2 WANG Bin1
1.Wenzhou City Central Blood Center,Wenzhou 325001,China; 2.Wenzhou Medical University, Wenzhou 325000, China
[Abstract] Objective To analyze the infection of HCV and investigate the feature of HCV genotypes among voluntary blood donors in WenZhou. Methods The results of HCV-IgG by ELISA among voluntary blood donors in wenzhou from 2010 to 2012 were statistically analyzed and HCV genotyping was performed using RT- PCR. Results The unqualified rate for anti-HCV was not obviously different year by year(P<0.05). Among 68 subjects, the percentage of genotype 2a single positive was 4.41%, the percentage of genotype 2b single positive was 30.88%, the percentage of genotype 2b and 2a double postive was 60.29%, the percentage of total 1b infection was 91.18%, the percentage of total 2a infection was 64.71%. Conclusion The unqualified rate of HCV is not obviously different every year. There are genotype 1b and 2a in Wenzhou, while 1b genotype is the majority, and the rate of 1b and 2a co-infection is high.
[Key words] Voluntary blood donor;Hepatitis C virus; Infection rate; Polymerase chain reaction; Genotype
丙型肝炎病毒(hepatitis C virus,HCV)是丙型肝炎的病原體,人感染丙肝病毒后比感染乙肝病毒更容易轉化成慢性肝炎,并可能發展成肝硬化和肝癌,而且病毒主要通過血液傳播,是導致輸血后肝炎的主要病原體,因此血站作為臨床用血提供部門做好血液的篩查就顯得十分重要。因為丙肝病毒基因組具有異源性和高度可變性,所以在長期演化過程中丙肝病毒可產生眾多的變異毒株(基因型) 和病毒基因型,具有在人群分布顯著差異的特點。目前尚無溫州地區無償獻血者丙肝感染基因型的報道。本研究采用ELISA方法對采集的血液標本進行抗HCV檢測,通過分析得出獻血群體中HCV的感染情況,并且通過RT-巢式PCR技術進行HCV基因分型的研究,以探討溫州無償獻血群體HCV基因型的分布特征。
1 對象與方法
1.1 研究對象
選擇2010年1月~2012年12月溫州中心血站采集的所有無償獻血者的血液標本。……