background: sulfur mustard (sm) has acute and chronic effects on skin and mucosal surfaces. the aim of the study was to evaluate the frequency of esophagitis in a historical cohort of veterans who had been exposed to sm in iran-iraq war nearly 25 years ago.   methods : one hundred two veterans with dyspepsia and/or heartburn underwent esophago-gastro-duodenoscopy. of them, 52 cases had been exp...

saffron (crocus sativus l.) has been considered as a medicinal plant since ancient times and also widely used as food additive for its color, taste and odor. the pharmacological properties of saffron and its main constituents, crocin and safranal have been evaluated using different in vivo and in vitro models. additionally, other lines of studies have found toxicological effects of saffron.  ho...

Background: Low back pain (LBP) is one of the most common problems among the workers of different industries. The role of occupational factors in causing the LBP has been indicated previously. LBP has great socio-economic costs and most of its costs are related to the chronic LBP. The aim of this study was to identify the occupational risk factors that are related to the progression of the ...

Saffron (Crocus sativus L.) has been considered as a medicinal plant since ancient times and also widely used as food additive for its color, taste and odor. The pharmacological properties of saffron and its main constituents, crocin and safranal have been evaluated using different in vivo and in vitro models. Additionally, other lines of studies have found toxicological effects of saffron.  Ho...

  Background: Sulfur mustard (SM) has acute and chronic effects on skin and mucosal surfaces. The aim of the study was to evaluate the frequency of esophagitis in a historical cohort of veterans who had been exposed to SM in Iran-Iraq war nearly 25 years ago.   Methods : One hundred two veterans with dyspepsia and/or heartburn underwent esophago-gastro-duodenoscopy. Of them, 52 cases had been e...

Background: Sulfur mustard is one of the chemical warfare gases that has been known as a vesicant or blistering agents. It is a chemical alkylating compound agent that can be frequently absorbed through skin, respiratory system, genital tract, and ocular system. This study was done to pathologically analyze the microscopic pancreatic lesions in cadavers. Methods: This case series study was per...

because of on-call responsibilities, many medical residents are subjected to chronic partial sleep deprivation, a form of sleep restriction whereby individuals have chronic patterns of insufficient sleep. it is unclear whether deterioration in cognitive processing skills due to chronic partial sleep deprivation among medical residents would influence educational exposure or patient safety.twent...

silicon dioxide or silica is the earth’s most abundant mineral. the primary pulmonary illness attributable to silica exposure is silicosis, which is observed in three forms: classic, accelerated and acute. a case of silicosis is presented in this article who has been working in a stone-cutting plant. he had suffered from symptoms of silicosis one year after employment in this plant (acute form)...

introduction: exposure to 3, 4- methylenedioxymethamphetamine (mdma) could lead to serotonergic system toxicity in the brain. this system is responsible for learning and memory functions. studies show that mdma causes memory impairment dose-dependently and acutely. the present study was designed to evaluate the chronic and acute effects of mdmd on spatial memory and acquisition of passive avoid...