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Introduction: Stress is a condition that causes tension, disturbance in body and mind, discomfort and dissatisfaction. There are differences between stresses in the form of great life events and small daily stressful events. Regarding extension and variation of stresses in different parts of country, this study aims to investigate the prevalence and severity of stresses in central areas of Iran. Materials and Methods: This is a cross-sectional analythical study carried out on 6000 people older than 19 years old, selected from urban and rural areas of Isfahan, Arak and Najaf Abad on 2002, as a part of evaluation of the Healthy Heart program. Sampling method was cluster random sampling. Data was collected using GHQ-12 and stressors' type and severity questionnaire. Statistical analysis was performed using Chi square. Results: Of the total subjects under study %50.6 were male, and %49.4 female, with a mean age of 40.47±15.68 and 40.25±15.15 years respectivly. The proportion of women with high GHQ score was higher than men, which was more pronounced in Arak than the two other cities. There were also higher stress levels in unmarried and urban people. (p0.05)The most prevalent stressor included economical, social and job-related issues and the most severe were death, family related and economical events. Conclusion: This study on stress as an indicator of lifestyle reveals high stress levels in the population, which warrants appropriate planning and community-based interventions, to improve lifestyle and reduce stress.

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Background: A lot of research has been done on the post-traumatic stress, but few studies have investigated the effect of chronic stress disorders on physical and psychological health. This study investigated the combined interactive effects of chronic stress disorders and mental disorders on somatoform disorders reporting among employees at Isfahan Steel Company. Materials and Methods: In this correlational study, 189 employees in Isfahan Steel Company wwere selected according to the stratified random sampling method and completed demographic characteristics, chronic stress disorders of Cohen, Karmark, and Mermelstein, and mental disorders and somatoform disorders of Barling, Loughlin, and Kelloway questionnaires in 2011. Data were analyzed using Pearson correlation coefficient and hierarchical regression. Results: Results showed significant internal correlations among chronic stress disorders, mental disorders, and somatoform disorders (p<0.01). In addition, by controlling for demographic variables, the results of hierarchical regression analysis showed the interactive effect of chronic stress disorders and mental disorders on reporting somatoform disorders to be significant (p<0.05). Conclusion: This study showed that chronic stress disorders have a positive relationship with reporting somatoform disorders both in experiencing and not experiencing psychological disorders however, this relationship was stronger when employees in addition to chronic stress disorders experienced psychological disorders.

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Background: Hemophilia A is an X-linked bleeding disorder caused by heterogenous mutations in factor VIII gene that encodes coagulation factor VIII (F8) protein. Due to the high heterogeneity of mutations, large size (186 kb) and structural complexity of the F8 gene, direct mutation analysis is costly and time consuming. Alternatively, linkage analysis using informative polymorphic markers such as single nucleotide polymorphism (SNP) markers has been introduced as a rapid and cost effective method for hemophilia A carrier detection in families with an affected individual. Several SNP markers associated with the F8 gene region have been studied.

Materials and Methods: In this exprimental study, the characteristics of A/T SNP (rs4898352) as an informative marker located in intron 18 of F8 gene region was investigated in Isfahanin population. rs4898352 marker was genotyped using tetra primer ARMS PCR method followed by agarose gel electrophoresis in 140 unrelated control healthy females in mentioned population. New primers were designed for rs4898352 marker using the oligo 7 software. The allele frequency, degree of heterozygosity and Hardy-Weinberg equilibrium were estimated by use of Genepop program. The polymorphism information content (PIC) value was estimated using the Powermarker software.

Results:  The results showed that the allele frequency of rs4898352 polymorphism for A and T alleles was 0.482 and 0.518, respectively. The observed heterozigosity rate was 60%. Analysis of Hardy-Weinberg Equilibrium demonstrated that the Isfahan population was in equilibrium (p>0.05) for rs4898352 marker. Moreover, analysis of PIC value revealed that this marker could be considered as a highly informative marker in the mentioned population.

Conclusion: Together, the data suggested that rs4898352 could be introduced as an informative marker for molecular diagnosis of hemophilia A in Isfahan Population