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題 名 | The Epidemiology of TT Virus (TTV) Infection in a Hepatitis C and B Virus Hyperendemic Area of Southern Taiwan=TT病毒在C型及B型肝炎病毒高盛行地區之流行病學研究 |
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作 者 | 戴嘉言; 余明隆; 莊萬龍; 盧勝男; 王景弘; 黃志富; 侯丞; 陳信成; 林子堯; 謝明裕; 王良彥; 蔡榮發; 張文宇; | 書刊名 | The Kaohsiung Journal of Medical Sciences |
卷 期 | 16:10 2000.10[民89.10] |
頁 次 | 頁500-509 |
分類號 | 415.5332 |
關鍵詞 | TT病毒; C型肝炎病毒; B型肝炎病毒; TT virus DNA; HCV; HBV; GBV-C/HGV RAN; |
語 文 | 英文(English) |
中文摘要 | TT病毒(TTV)為1997年由一位不明原因之輸血後肝炎患者的血清中分 離出來之DNA病毒。為了探討TT病毒在C型及B型肝炎病毒高盛行地區(馬沙 溝社區)之流行病學及臨床表徵,共有200位馬沙溝之居民參與此研究。血清檢 體之檢查包括轉胺酵素(ALT)值、B型肝炎表面抗原(HBsAg)、C型肝炎抗體 (anti-HCV)、C型肝炎病毒RNA(HCV RNA)、G型肝炎病毒(HGV)RNA、HGV E2 蛋白抗體anti-E2)及TT病毒DNA(TTV DNA)。TT病毒DNA之盛行率為49.5% (99/200)。HBsAg、anti-HCV、HCV RNA、HGV RNA、anti-E2及G型肝炎病毒 曝露(定義為血清HGV RNA 及/或 anti-E2陽性)之盛行率則分別為38.9%、 69.5%、64.5%、17.0%、25.5%及39.5%。經統計分析後發現,無臨床因子或肝 炎病毒因子與TTV DNA陽性率相關。ALT值異常率在HCV RNA陽性群組明顯 高於陰性群組(39.4%及7%,P<0.001)。多變相統計分析發現,HCV病毒血症為 與ALT值升高顯著相關之唯一因子(勝算比:6.96,95%信賴區間:2.60-18.7)。 結論:在C型及B型肝炎病毒高盛行地區,TT病毒之盛行率亦高。TT病毒感 染無明顯相關之臨床因子。ALT值之異常與TT病毒無關且主要歸因於C型肝炎 病毒血症。 |
英文摘要 | TT virus (TTV) is a newly isolated DNA virus from the serum of a patient with posttransfusion hepatitis of unknown etiology in 1997. To evaluate the clinical and molecular characteristics of TT virus (TTV) in a hepatitis C virus (HCV) and B (HBV) hyperendemic area (Masago), 200 residents were enrolled in the study. The sera were tested for alanine aminotransferase (ALT), HCV RNA and GB virus C/Hepatitis G virus (HGV) RNA, TTV DNA, HBsAg, anti-HCV and antibodies to HGV E2-protein (anti-E2). TTV DNA was positive in 99 of the 200 sera with a prevalence rate of 49.5%. The prevalence of HBsAg, anti-HCV, HCV RNA, HGV RNA, anti-E2 and HGV exposure (defined as positive for serum HGV RNA and/or anti-E2) was 38.9%, 69.5%, 64.5%, 17.0%, 25.5% and 39.5%, respectively. Neither clinical nor virological factors were associated with TTV viremia. The rate of ALT abnormality was significantly elevated in HCV RNA-positive (34.9%) than -negative (7.0%) residents (p<0.001). HCV viremia was the only factor significantly associated with ALT elevation by multiple logistic regression (odds ratio: 6.96; 95% C.I.: 2.60-18.7). We concluded that in this HCV/HBV hyperendemic area, the prevalence of TTV DNA was high. No significant clinical factor was observed to be associated with TTV infection. TTV infection is not related to abnormal ALT levels and ALT abnormality was mainly attributable to HCV but not TTV, HBV or HGV infection. |
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