Journal of Gastroenterology

, Volume 46, Issue 9, pp 1120–1126

Serodiagnosis of Helicobacter hepaticus infection in patients with liver and gastrointestinal diseases: western blot analysis and ELISA using a highly specific monoclonal antibody for H. hepaticus antigen

  • Kazunari Murakami
  • Ryoki Takahashi
  • Masami Ono
  • Koichiro Watanabe
  • Tadayoshi Okimoto
  • Masaaki Kodama
  • Daijiro Abe
  • Moto Kimura
  • Toshio Fujioka
Original Article—Liver, Pancreas, and Biliary Tract

DOI: 10.1007/s00535-011-0414-x

Cite this article as:
Murakami, K., Takahashi, R., Ono, M. et al. J Gastroenterol (2011) 46: 1120. doi:10.1007/s00535-011-0414-x

Abstract

Background

Helicobacter hepaticus infection might be associated with liver and biliary tract diseases. To investigate its pathogenic role, the properties of anti-H. hepaticus serum antibody in patients with liver and diseases were elucidated.

Methods

Serum samples were collected from 166 patients–69 with liver diseases, 38 with upper gastrointestinal diseases, 17 with lower gastrointestinal diseases, 26 with biliary tract diseases, and 16 with pancreas diseases; 30 control sera were obtained from 30 healthy blood donors. Serum samples were analyzed by enzyme-linked immunosorbent assay (ELISA) and western blot using the new monoclonal antibody HR II-51.

Results

Anti-H. hepaticus serum antibody concentrations in patients with liver disease (n = 69) were significantly increased compared with those in other disease groups (p = 0.014 to <0.001). Particularly, liver cirrhosis (n = 19) showed a significantly higher antibody level compared with other liver diseases (n = 50, p = 0.005) and healthy donors (n = 30, p = 0.0005), as well as a higher seroprevalence (68.4%) compared with other liver diseases (p = 0.05) and healthy donors (p = 0.004). Furthermore, the ELISA value in liver cirrhosis (n = 19) was significantly higher than that in patients with hepatitis B virus (HBV)—and/or hepatitis C virus (HCV)-infected chronic hepatitis (n = 15) (0.389 ± 0.084 vs. 0.350 ± 0.084, p = 0.029). However, there was no relationship between the total immunoglobulin concentration and the anti-H. hepaticus antibody level in each liver disease (Spearman’s rank correlation coefficient [rs] < 0.225).

Conclusions

H. hepaticus infection might play a role in the development of liver diseases; in particular, it might increase the risk of the development of HBV- and/or HCV-infected liver diseases.

Keywords

Helicobacter hepaticusSerodiagnosisLiver diseasesGastrointestinal diseaseELISA

Copyright information

© Springer 2011

Authors and Affiliations

  • Kazunari Murakami
    • 1
  • Ryoki Takahashi
    • 2
  • Masami Ono
    • 1
  • Koichiro Watanabe
    • 1
  • Tadayoshi Okimoto
    • 1
  • Masaaki Kodama
    • 1
  • Daijiro Abe
    • 2
  • Moto Kimura
    • 2
  • Toshio Fujioka
    • 1
  1. 1.Department of Gastroenterology, Faculty of MedicineOita UniversityYuhuJapan
  2. 2.Wakamoto Pharmaceutical Co., Ltd., Sagami Research LaboratoriesAshigarakami-gunJapan