• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Epidemiological survey of water-borne hepatitis virus infection and study on an improvement in public health

Research Project

Project/Area Number 19604004
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 国際保健医療研究
Research InstitutionNational Institute of Infectious Diseases

Principal Investigator

ABE Kenji  National Institute of Infectious Diseases, 感染病理部, 主任研究官 (60130415)

Co-Investigator(Renkei-kenkyūsha) PHUC Le Hoang  ベトナム・ホーチミン第一小児病院, 消化器科
KHANH Hun Truong  ベトナム・ホーチミン第一小児病院, 感染症科
TUNG Thanh Tran  ベトナム・ホーチミン第一小児病院, 病理科
PHIET Hoang Pham  ベトナム・ホーチミン医科薬科大学, 消化器科
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2007: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords肝炎ウイルス / A型肝炎 / E型肝炎 / 劇症肝炎 / 小児肝炎 / 非B非C型肝炎 / 国際保健 / 疫学 / 成因不明肝炎
Research Abstract

東南アジア4カ国におけるHEVの血清疫学調査を実施した結果、HEV-IgG抗体陽性率はタイ(バンコク)・27%、ベトナム(ホーチミン)・42%、ミャンマー(ヤンゴン)・35%、ネパール(カトマンズ)・66%といずれも高値を示した。年代別抗体獲得率は、16~30歳代で既に20%を越えていた。ネパールでは、非B非C型急性肝炎と診断された25例において、14例(56%)がIgMクラスHEV抗体陽性を示した。このうち3例で血中HEV RNA陽性を示し、その遺伝子解析からHEVゲノタイプ1に属した。
ベトナムの小児における成因不明肝炎の実態を調査した。臨床的に非B非C型肝炎と診断された急性肝炎26例および劇症肝炎7例の小児患者を対象とした。その結果、IgM-HAV抗体が急性肝炎26例中18例(69.2%)、劇症肝炎7例中1例(14.3%)で検出された。さらに、急性期の血清中を用いたPCR法にて、HAV RNAが急性肝炎5例(19.2%)、劇症肝炎2例(28.6%)で検出された。HAV RNA陽性を示した7例のうち、2例(28.6%)はIgM-HAV抗体が陰性であった。さらに、HAV RNA陽性7例のPCR産物を用いて、direct sequenceにより VP1領域の塩基配列を決定した後、分子系統樹を近隣結合法にて作成し、ゲノタイプ分類を行った。その結果、全ての分離株はゲノタイプIAに属した。HAVベトナム株は、同一クラスターを形成し、近隣のタイやインド株とは異なった集団を形成した。この成績から、ベトナムではHAV感染が、非B非C型急性および劇症肝炎発症に深く関わっていることが示唆された。HAVベトナム株のゲノムを解析・誌上発表したのは、本研究が初である。
この他、保健医療向上を目指して、ベトナム・ホーチミン市の主要な医療機関にて、血清診断、遺伝子診断、病理診断に関する技術指導を実施した。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (20 results)

All 2009 2008 2007 Other

All Journal Article (16 results) (of which Peer Reviewed: 12 results) Presentation (4 results)

  • [Journal Article] Detection of low level HBV DNA by PCR in non-responders of plasma-derived hepatitis B vaccine produced at the Department of Medical Research (Lower Myanmar).2008

    • Author(s)
      Moh Moh Htun, Khin Pyone Kyi, Khin May Oo, San San Oo, Khin Ohmar Lwin, Kenji Abe
    • Journal Title

      Myanmar Health Sciences Research Journal 19

      Pages: 125-130

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Complete genomes of three subtype 6t isolates and analysis of many novel HCV variants within genotype 6.2008

    • Author(s)
      Ling Lu, Donald Murphy, Chunhua Li, Shuanghu Liu, Xueshan Xia, Phiet Hoang Pham, Curt H. Hagedorn, Kenji Abe
    • Journal Title

      Journal of General Virolgy 89

      Pages: 444-452

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Complete genomic sequence and phylogenetic relatedness of hepatitis B virus isolates in Cambodia.2008

    • Author(s)
      Tran Thien Tuan Huy, Amadou Alpha Sall, Jean Marc Reynes, Kenji Abe
    • Journal Title

      Virus Genes 36

      Pages: 299-305

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] New complex recombinant genotype of hepatitis B virus identified in Vietnam.2008

    • Author(s)
      Tran Thien Tuan Huy, Trinh Thi Ngoc, Kenji Abe
    • Journal Title

      Journal of Virology 82

      Pages: 5657-5663

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Detection of hepatitis A virus RNA from children patients with acute and fulminant hepatitis of unknown etiology in Vietnam: genomic characterization of Vietnamese HAV strain.2008

    • Author(s)
      Phuc Le Hoang, Khanh Huu Truong, Tung Thanh Tran, Tran Thien Tuan Huy, Kenji Abe
    • Journal Title

      Pediatrics International 50

      Pages: 624-627

    • NAID

      10025345083

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Complete genomic sequence and phylogenetic relatedness of hepatitis B virus isolates in Cambodia2008

    • Author(s)
      Tran Thien Tuan Huy, et al.
    • Journal Title

      Virus Genes 36

      Pages: 299-305

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] New complex recombinant genotype of hepatitis B virus identified in Vitnam2008

    • Author(s)
      Tran Thien Tuan Huy, et al.
    • Journal Title

      Journal of Virology 82

      Pages: 5336-5657

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Detection of hepatitis A virus RNA from children patients with acute and fulminant hepatitis of unknown etiology in Vitnam : genomic characterization of Vietnamese HAV strain2008

    • Author(s)
      Phuc Le Hoang, et al.
    • Journal Title

      Padiatrics International 50

      Pages: 624-627

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Detection of low level HBV DNA by PCR in non-responders of plasma-derived hepatitis B vaccine produced at the Department of Medical Research (Lower Myanmar).2008

    • Author(s)
      Moh Moh Htun, et al.
    • Journal Title

      Myanmar Health Sciences Research Journal 19

      Pages: 125-130

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of erythrovirus B19 genomes isolated in liver tissues from patients with fulminant hepatitis and biliary atresia who underwent liver transplantation.2007

    • Author(s)
      Kenji Abe, Tetsuya Kiuchi, Koichi Tanaka, Yoshihiro Edamoto, Naoto Aiba, Tetsutaro Sata
    • Journal Title

      International Journal of Medical Sciences 4

      Pages: 105-109

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Hagedorn, Donald Murphy: Complete genomes of hepatitis C virus (HCV) subtypes 6c, 6l, 6o, 6p and 6q: completion of a full panel of genomes for HCV genotype 6.2007

    • Author(s)
      Ling Lu, Chunhua Li, Fengxiang Gao, Kenji Abe, Hiroaki Okamoto, Curt H.
    • Journal Title

      Journal of General Virology 88

      Pages: 1519-1525

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Hepatitis B virus genotypes in children and adolescents in Japan : Before and after immunization for the prevention of mother to infant transmission of hepatitis B virus.2007

    • Author(s)
      Ayano Inui, Sogo Tsuyoshi, Haruki Komatsu, Toshiro Nagai, Kenji Abe, Tomoo Fujisawa
    • Journal Title

      Journal of Medical Virology 79

      Pages: 670-675

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of erythrovirus B19 genomes isolated in liver tissues from patients with fulminant hepatitis and biliary atresia who underwent liver transplantation.2007

    • Author(s)
      Kenji Abe, et. al.
    • Journal Title

      International Journal of Medical Sciences 4

      Pages: 105-109

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Complete genomes of hepatitis C virus(HCV)subtypes 6c,6l,6o,6p and 6q:completion of a full panel of genomes for HCV genotype 6.2007

    • Author(s)
      Ling Lu, et. al.
    • Journal Title

      Journal of General Virology 88

      Pages: 1519-1525

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Complete genomes of three subtype 6t isolates and analysis of many novel HCV variants within genotype 6.2007

    • Author(s)
      Ling Lu, et. al.
    • Journal Title

      Journal of General Virology 89

      Pages: 444-452

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Detection of hepatitis A virus RNA from children patients with acute and fulminant hepatitis of unknown etiology in Vietnam:genomic characterization of Vietnamese HAV strain.

    • Author(s)
      Le Phuc Hoang, et. al.
    • Journal Title

      Pediatrics International 印刷中

    • Related Report
      2007 Annual Research Report
  • [Presentation] Stem cell origin of liver cancers in Asian children.2009

    • Author(s)
      Swan N. Thung, Tung Thanh Tran, Phuc Le Hoang, Ja June Jang, Young Nyun Park, Kenji Abe
    • Organizer
      United States and Canadian Academy of Pathology
    • Place of Presentation
      Boston, U. S. A.
    • Related Report
      2008 Final Research Report
  • [Presentation] Hepatitis B and C in Asia.2008

    • Author(s)
      Kenji Abe
    • Organizer
      19th National Pediatric Conference of Vietnam pediatric Association
    • Place of Presentation
      Ho Chi Minh City Vietnam
    • Related Report
      2008 Final Research Report
  • [Presentation] Citrin deficiency in Vietnamese children.2008

    • Author(s)
      Ton Thi Thanh Ha, Hoang Le Phuc, Kenji Abe, Keiko Kobayashi
    • Organizer
      19th National Pediatric Conference of Vietnam Pediatric Association
    • Place of Presentation
      Ho chi Minh City, Vietnam
    • Related Report
      2008 Final Research Report
  • [Presentation] Identification and significance of pre-S deletion mutants in human and woodchuck HBV-related hepatocelllar carcinoma.2008

    • Author(s)
      Han-Chieh Wu, Yuan-Ching Lo, Ih-Jen Su, Kenji Abe
    • Organizer
      2nd Ditan International Conference on Infectious Diseases
    • Place of Presentation
      Beijing, China
    • Related Report
      2008 Final Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi