Baniaghil S, Sarafnejad A, Amirzargar A, Khosravi F, Ansaripour B, Moradi B, Dorkhosh S, Nikbin B,
Volume 64, Issue 11 (10-2006)
Abstract
Background: The outcome of acute hepatitis B infection may be influenced by host genetic factors like human leukocyte antigen (HLA). To investigate the association between the HLA-DRB, DQA1 and DQB1 alleles and chronic hepatitis B infection, 50 patients with chronic hepatitis B (based on 6 months positive of HBsAg and HBc antibody and HBeAg and antibody by serological test), were selected from Turkman population in north east of Iran .Allele frequency in patients were compared with a 65 aged and sex match control group from healthy blood donor of that ethnic population.
Methods: HLA DRB, DQA1 and DQB1 alleles were determined using polymerase chain reaction based on sequence specific primer (PCR-SSP) method. Allele frequencies in patients and control subjects were compared by Epi-info statistical soft-wear.
Results: There was a significant increase and positive association in HLA-DRB1*0301, DQA1*0501 and DQB1*0604 allele frequency in patients group while the frequency of HLA-DRB1*1301, 1501 and DQB1*0401 and DQA1*0401, 0102 were lower in patients than control group and shows negative association.
Conclusion: In Iranian Torkman population, HLA DRB1*0301, DQA1*0501 and DQB1*0604 have an important role in susceptibility to chronic hepatitis B infection and HLA DRB1*1301, 1501, DQB1*0401 are associated with protection to chronic hepatitis B infection. Larger case control studies may be helpful to confirm our investigation.
Behrooz Ataei , Morteza Pourahmad , Ali Fotoohi , Katayoun Tayeri , Majid Yaran ,
Volume 75, Issue 11 (2-2018)
Abstract
Background: Hepatitis E virus (HEV) is from Hepeviridae family and genus Hepevirus. This virus is in 4 genotypes. These 4 genotypes are classified in 2 classes. In first class there are genotypes 1 and 2 which are specific for human. Genotypes 1 and 2 are not developed to chronic hepatitis is spite to genotypes 3 and 4 which may develop to chronic hepatitis in immunocompromised patients. It should say that in middle east genotypes 3 and 4 are not frequent. One of the immunodeficiency syndrome is human immunodeficiency virus (HIV) infection in which in the late phases of the disease the power of the immunity will be severely decreased in the patients. Therefore, in patients with HIV infection, HEV (specially genotypes 3 and 4) may be a problem and it may progress to a chronic viral hepatitis which may lead to liver failure. Therefore, it may need treatment and prophylactic strategies in some areas. The aim of this study was to evaluate the frequency of HEV infection in HIV patients by molecular assay.
Methods: This descriptive, cross-sectional study was conducted on 111 random selected, known HIV infection patients in 2016 in Isfahan, Iran. This study was done under supervision of Immunodeficiency Research Center of Isfahan University of Medical Sciences. The criteria for enrolling in the study, was positivity of HIV infection, and samples were selected from all known HIV infected patients in Isfahan. After blood sampling from the selected patients, HEV RNA was surveyed by RealStar® HEV RT-PCR Kit 1.0 (Altona Diagnostics, Hamburg, Germany). At the end, after isolation of HEV RNA, the cDNA was prepared and evaluated.
Results: Patients were between 5 to 68 years old and mean of the patients age was 38.5±11.5 years. 75 (67.6%) and 36 (32.4%) of the patients were men and women respectively. Mean count of the CD4 cells in these patients was 317.2±187.8. HBsAg and HCVAb was positive in 6 (5.4%) and 39 (35.1%) of them. No one of the studied patients were positive for HEV infection.
Conclusion: On the results of this study, there is no chance for having hepatitis E infection in Iranian HIV patients. Therefore, it seems that, hepatitis E is not an important problem in this group of patients in Iran.
