Author/Authors :
Razavi, Armin Hosseini shahid beheshti university of medical sciences - Gastroenterology and Liver Diseases Research Center, Faculty of Biological Sciences - Department of Microbiology,, تهران, ايران , Azimzadeh, Pedram shahid beheshti university of medical sciences - Gastroenterology and Liver Diseases Research Center, تهران, ايران , Mohebbi, Reza shahid beheshti university of medical sciences - Gastroenterology and Liver Diseases Research Center, تهران, ايران , Hosseini, Masoud shahid beheshti university - Faculty of Biological Sciences - Department of Microbiology, تهران, ايران , Romani, Sara shahid beheshti university of medical sciences - Gastroenterology and Liver Diseases Research Center, تهران, ايران , Khanyaghma, Mahsa shahid beheshti university of medical sciences - Gastroenterology and Liver Diseases Research Center, تهران, ايران , Hatami, Yasin shahid beheshti university of medical sciences - Gastroenterology and Liver Diseases Research Center, Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, تهران, ايران , Sharifian, Afsaneh shahid beheshti university of medical sciences - Gastroenterology and Liver Diseases Research Center, تهران, ايران , Zali, Mohammad Reza shahid beheshti university of medical sciences - Gastroenterology and Liver Diseases Research Center, تهران, ايران
Abstract :
Background: Chronic hepatitis B is one of the world s major health concern. The etiological agent of this infection is hepatitis B virus (HBV), which can evade the immune system response. Transforming growth factor beta 1 (TGF-β1) can act against HBV by suppressing the viral replication. The TGF-β1 also plays an important role in preventing liver damage in chronically HBV infected patients.Objectives: In this study, the association of TGF-β1 +915G/C and -509C/T gene polymorphisms with chronic hepatitis B was evaluated in Iranian patients. Materials and Methods: A population-based case–control study was conducted in Taleghani Hospital, Tehran. A number of 220 patients with chronic hepatitis B and the same number of healthy control subjects were designated the case and the control groups. The PCR-Restriction Fragment Length Polymorphism Method (PCR-RFLP) method was used for genotyping both polymorphisms. Ten percent of the control samples were sequenced to confirm the results. Results: No statically significant differences in genotype distribution and allele frequency were observed for both polymorphisms between healthy controls and patients with chronic hepatitis B. Conclusions: There was no association between TGF-β1 -509C/T and +915G/C polymorphisms with chronic hepatitis B and it seems that these changes don not play a significant role in increasing the risk of chronic infection in Iranian patients.
Keywords :
Transforming Growth Factor beta 1 , Hepatitis B, Chronic , Polymorphism, Genetic
