BACKGROUND Excess weight may be associated with mental distress and this relationship varies according to the socio-cultural background of different populations. This study aims to assess the relationship of overweight and obesity with some psychological disorders in a nationally representative sample of Iranian adolescents. METHODS This nationwide study was conducted in 2009-2010 among 5570 ...

Now a day, antibiotic resistance is a global health threat which is considered as the major cause of treatment failures in bacterial infection. H. pylori (Helicobacter pylori) is a spiral-shaped gram negative bacterium that colonizes in gastric mucosa and is responsible for serious gastrointestinal diseases including peptic ulcers and gastric cancer. Appearance and increasing of antibiotic resi...

INTRODUCTION Hepatitis B virus (HBV) infection is the main cause of chronic liver disease in Iran (1,2). The epidemiology of HBV infection in Iran has been changed during the last two decades (1) and infantile vaccination with high coverage is the main cause for this change (3,4). The prevalence of hepatitis B surface antigen (HBsAg) in the country was reported between 2.5% and 7.2% in 1979 (5)...

Background: Iran, a lowto middle-income country, has experienced considerable socioeconomic changes in 20 century, which their impacts on the adult heights has not been assessed deeply by now. This article aims to quantify the temporal variations of height (with respect to shrinkage of height due to aging) and its deterministic factors in Iranian population born between 1940 and 1984. Methods: ...

BACKGROUND There is a great amount of literature concerning the effect of racial segregation on health outcomes but few papers have discussed the effect of segregation on the basis of social, demographic and economic characteristics on health. We estimated the independent effect of segregation of determinants of socioeconomic status on infant mortality in Iranian population. METHODS For measu...

The emergence of farming during the Neolithic transition, including the domestication of livestock, was a critical point in the evolution of human kind. The goat (Capra hircus) was one of the first domesticated ungulates. In this study, we compared the genetic diversity of domestic goats to that of the modern representatives of their wild ancestor, the bezoar, by analyzing 473 samples collected...

In this study, the chemical composition of the essential oils (EOs) extracted from aerial parts of native populations of Origanum vulgare ssp. vulgare from Iran was compared by GC and GC/MS. Plants were collected at bloom stage from their natural habitats located in Kaleybar, Sabalan, Meshkin Shahr and Chalus regions, respectively from East Azerbaijan, Ardabil, Ardabil and Mazandaran provinces....

The genus Juniperus L. (Cupressaceae), an aromatic evergreen plant, consists of up to 68 species around the world. We classified five species of Juniperus found in Iran using molecular markers to provide a means for molecular identification of Iranian species. Plants were collected (three samples of each species) from two different provinces of Iran (Golestan and East Azarbayejan). The DNA was ...

Phenylketonuria (PKU) is an autosomal recessive disease which results from mutations in the phenylalanine hydroxylase (PAH) gene. The aim of this study was the identification of sixteen different mutations in Iranian patients with hyperphenylalaninemia. The mutations were detected during the characterization of PAH genotypes of 39 PKU patients from Qazvin and Zanjan provinces of Iran. PAH mutat...

BACKGROUND Identifying factors, which influence health behaviors is critical to designing appropriate and effective preventive programs. Human immunodeficiency virus (HIV) transmission is highly related to people behaviors and understanding factors influencing healthy behaviors among Iranian people living with HIVs (PLHIVs)/acquired immunodeficiency syndrome (AIDS) is very important to tailor a...