About 80 percent of Iran is arid and semi-arid and about 35 percent of this area is susceptible to desertification hazard. Therefore desertification assessment and identification of the most important criteria for the assessment of risk and a basis for development of management plans is essential. This research was conducted in the semi-arid region of Agh-Band in the Golestan province, Iran wit...

background and objective: long period risk of gastric carcinoma in people affected with chronic helicobacter pylori gastritis is 5 times more than normal people. perhaps histological changes due to helicobacter pylori infection could be used for screening people at risk of gastric carcinoma and peptic ulcer. materials and methods: this study has been carried out as a cross-sectional process and...

background: sleep apnea is associated with increased risk ofdiabetes mellitus. however, no studies have compared sleep apneasymptoms in diabetic patients and their first degree relatives.the purpose of our study was to investigate high risk for sleepapnea syndrome, in diabetics and their first degree relatives forprevention of diabetes in family.methods: as a part of a cohort study, all of diab...

aim : the present study aimed to evaluate the prevalence of positive family history of these cancers in a large population-based sample of tehran province, capital of iran. background : upper gastrointestinal (ugi) cancers (gastric and esophagus cancer) constitute a major health problem worldwide. a family history of cancer can increase the risk for developing cancer and recognized as one of th...

the probability that the commutator of two group elements is equal to a given element has been introduced in literature few years ago. several authors have investigated this notion with methods of the representation theory and with combinatorial techniques. here we illustrate that a wider context may be considered and show some structural restrictions on the group.

background: it is presumed that gastric cancer has several etiologies. first-degree relatives of patients with gastric cancer are suggested to be at higher risk compared to others. this is the first study aimed at estimating this risk, using meta-analysis of case-control studies. materials and methods: all records prior to february 2008 in pubmed and embase were searched for case-control studie...

Background & Aims: The aim of this study was to estimate the prevalence and risk factors for diabetes, pre-diabetes and metabolic syndrome in first-degree relatives(FDRs) of patients with type 2 diabetes. Methods: In a cross-sectional study between 2003 and 2005, 3228 of first-degree relatives of patients with type 2 diabetes (841 men and 2387 women) from Isfahan Endocrine and Metabolism Resear...