human papillomavirus (hpv) has also been suggested as an etiology of esophageal squamous cell carcinoma (scc). the aim of this study was to investigate the prevalence of hpv infection in esophageal sccs in our region with strict contamination control to prevent false positive results. thirty cases of esophageal squamous cell carcinomas were chosen by simple random selection in a period of two y...

background: hepatitis b virus (hbv) causes acute and chronic liver disease worldwide. hbv has eight genotypes (a to h) which is the reflection of its genome with their characteristic geographical distribution. each genotype could have different pathogenic and therapeutic characteristics. there have been few records on hbv genotyping in general population from our region. this study aimed to det...

conclusions this study showed that cccdna can be detected in the plasma specimen of 17.9% of iranian treatment-naive patients with chronic hepatitis b infection. therefore, designing prospective studies focusing on the detection of cccdna in these patients would provide more information. results the mean (sd) age of the patients was 41.1 ± 12.4 years (range, 20 - 62 years). from a total of 106 ...

escherichia coli o157:h7 is an important human pathogen causing haemorrhagic colitis, haemolyticuraemic syndrom and thrombotic thrombocytopenic purpura. in this study, 100 ground beef samples were collected randomly from beef markets in june 2004. for isolation of the bacteria, samples were firstly enriched in modified trypticase soy broth, followed by plating onto sorbitol macconkey agar suppl...

results our study showed that there were no statistically significant differences in the allele and genotype frequencies of -1661 a/g snp between patients with sle and healthy controls (p > 0.05). conclusions in conclusion, we found no association between snp-1661 a/g of the ctla-4 promoter region and susceptibility to sle in our population. objectives to evaluate the potential influences of co...

today, it has been confirmed that the viral infections play an important role in premature delivery and abortion. this study was carried out to determine the frequency rate of papilloma virus types 16 and 18 in pregnant women and their relationship with premature delivery and abortion. in this study, vaginal secretions were collected from pregnant women who had been referred to the women clinic...