Mutations in Hepatitis-B X-Gene
Region: Chronic Hepatitis-B
versus Cirrhosis
Published: March 1, 2017 | DOI: https://doi.org/10.7860/JCDR/2017/22570.9498
Farzaneh Salarnia, Sima Besharat, Sare Zhand, Naeme Javid, Behnaz Khodabakhshi, Abdolvahab Moradi
1. Researcher, Infectious Disease Research Center, Golestan University of Medical Sciences, Gorgan, Golestan, Iran.
2. Assistant Professor, PhD, Golestan Research Center of Gastroentrology and Hepatology, Golestan University of Medical Sciences, Gorgan, Golestan, Iran.
3. PhD Candidate, Department of Microbiology, Golestan University of Medical Sciences, Gorgan, Golestan, Iran.
4. Researcher, Department of Microbiology, Golestan University of Medical Sciences, Gorgan, Golestan, Iran.
5. Associate Professor, Golestan Research Center of Gastroentrology and Hepatology, Golestan University of Medical Sciences, Gorgan, Golestan, Iran.
6. Professor, Golestan Research Center of Gastroentrology and Hepatology, Golestan University of Medical Sciences, Gorgan, Golestan, Iran.
Correspondence
Dr. Abdolvahab Moradi,
Department of Microbiology, Faculty of Mcdicine, Golestan University of Medical Science, Gorgan-49177-65181, Golestan, Iran.
E-mail: abmoradi@yahoo.com
Introduction: Specific mutations in Hepatitis-B Virus (HBV) genome would proceed the development of chronic hepatitis B to more serious consequences like cirrhosis and end-stage liver disease.
Aim: This study was designed to detect deletion and insertion mutational patterns in the X-gene region in a population of chronic HBV and related cirrhosis patients.
Materials and Methods: Sixty eight chronic HBV patients and 34 HBV-related cirrhotics were recruited from the eligible cases (N=50) referred to the academic hospitals of Gorgan city, Northeast of Iran, between Jan 2011 to Dec 2013. The HBx region was amplified by semi-nested PCR using serum samples and analyzed by sequencing.
Results: Our findings showed deletions and insertions in the C-terminal of HBx of the cirrhotic group and 8 bp found in two chronic HBV cases (2.9%). We detected 15 types of deletions in cirrhotic cases such as 1762-1768, 1763-1770, 1769-1773 and T1771/A1775.
Conclusion: We found that the frequencies of deletion and insertion mutations in C-terminal of X-gene were more seen in cirrhotic patients comparing to chronic HBV cases in our area of study.
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