The role of parental monitoring and affiliation with deviant peers in adolescents' sexual risk taking: toward an interactional model.

Background: Adolescence is considered as an important phase for beginning sexual high risk behaviors that increases the possibility of negative, unpleasant and problematic consequences like unwanted pregnancy and probability of copulative disease transmission.

Objectives: To determine the prevalence of sexual risk taking among students in Tehran and to develop and test a model for the relationship between parental monitoring and affiliation with deviant peers as they predict youth risky sexual behaviors.

Materials And Methods: In this cross sectional study, 1266 adolescents were recruited from high schools in Tehran and three scales of sexual risk behavior, parental monitoring and adolescent affiliation with deviant peers were completed.

Erectile dysfunction in methadone maintenance patients: a cross sectional study in northern iran.

Objective: Erectile dysfunction affects quality of life and is a common dysfunction in drug abusers. The aim of this study was to evaluate the frequency of erectile dysfunction in drug abusers on methadone maintenance therapy to reduce this drug side effect in the future studies.

Methods: This cross-sectional study was conducted with two hundred addicted individuals on methadone maintenance therapy.

Effectiveness of Methadone Maintenance Treatment in Prevention of Hepatitis C Virus Transmission among Injecting Drug Users.

Background: Injecting drug users (IDUs) are a major and most important risk factor for rising hepatitis C virus (HCV) prevalence in Iran.

Objectives: The objective of this study was to determine the effectiveness of methadone maintenance treatment (MMT) in prevention of HCV infection transmission among IDUs.

Patients And Methods: A mathematical modeling has been used to estimate number of HCV infections averted.

The lack of association between idiopathic hirsutism and metabolic disturbances: Iranian PCOS Prevalence Study.

Background: Idiopathic hirsutism (IH) is a condition diagnosed after other hirsutism related is ruled out. Its definition diagnosis had a dynamic process along with improving the understanding of the various androgen excess disorders. There is uncertainty regarding its health impact and its long-term metabolic consequences.

A novel prediction model for all cause emergency department visits in ischemic heart disease.

Background: Ischemic heart disease (IHD) is the main cause of morbidity and mortality worldwide, and a considerable part of these patients attend to emergency departments, which increases the burden to these busy departments. The aim of this study was to develop a prediction model enabling prediction of all cause emergency department (ED) visits in patients with documented coronary stenosis in a derivation set, and then to determine its accuracy in a validation set.

Methods: In a prospective study at outpatient setting of Baqiyatallah hospital, Tehran, Iran, 502 patients with IHD were followed for 6 months for observing the outcome of ED visits for all causes.

Prevention of di (2-ethylhexyl) Phthalate-induced Testicular Disturbance in Mice by Co-administration of L-carnitine.

Background: di (2-ethylhexyl) phthalate (DEHP) is widely used in the plastic industry and can induce reproductive toxicity. On the other hand, L-carnitine (LC) plays a crucial role in sperm metabolism and maturation. This study evaluates the effect of LC on body and testis weight, testis tissue, count, motility, viability, morphology, and chromatin quality of epididymal sperm, testicular spermatid number (TSN) per gram testis and daily sperm production (DSP) in LC-treated mice.

Helicobacter pylori eradication and histopathological esophagitis in dyspeptic patients.

Background: The association of Helicobacterpylori with peptic ulcer disease, atrophic gastritis, gastric adenocarcinoma, MALT (mucosa associated lymphoid tissue) lymphoma is well recognized.

Aim: This study was conducted to see whether there was any relation between H. pylori eradication and reflux esophagitis in Iran.

Evaluation of eating habits in dyspeptic patients with or without Helicobacter pylori infection.

Background: The prevalence of Helicobacter pylori infection varies in different societies and geographical locations. This is attributed to socioeconomic status, life style, family density and other factors. There is also a possibility of an association between eating habits and the prevalence of H.

Bioprosthetic tricuspid valve dehiscence in a patient with Ebstein anomaly.

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Mustard gas scarring with specific pigmentary, trophic and vascular charactristics (case report, 16-year post-exposure).

Sulfur mustard (mustard gas) is an alkylating agent used widely against Iranians during the 8-year Iraq-Iran war. This agent causes various late-occurring respiratory, skin and eye complications. A 37-year-old Iranian man exposed to the agent in vapor form 16 years prior to the date of this writing was given a clinical and pathological evaluation for late-occurring skin lesions.