نتایج جستجو برای: exposure level
تعداد نتایج: 1349755 فیلتر نتایج به سال:
this study demonstrates the changes in six different pathophysiological parameters such as body weight, body temperature, fecal pellet count, blood-brain barrier (bbb) permeability, plasma corticosterone level and emergence of hemorrhagic peptic ulcer spots due to exposure to high environmental heat in three different age groups of freely moving rats. methods: each age group of rats was sub div...
Backgrounds andObjectives:The objective of the present study was to evaluate the potential effect of environmental exposure to toxic metal (cadmium) on pregnancy outcome and fetal growth.Materials and Methods: 330 normal pregnant women were randomly selected from vali-e-asr hospital, from July 2003 through Feb. 2005. Cadmium was measured in umbilical cord blood and mother whole blood of postpar...
Background and aims: Noise is one of the harmful parameters of the industrial environments. It affects the human health in different aspects including harmful effects on hearing damage, vision, neurological and psychiatric, hormones, physiological and mental systems. Paying attention to the importance of hormonal effects on human body, the aim of the present study is to investigate the effects ...
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background: over the past few years, the rapid use of high frequency electromagnetic fields like mobile phones has raised global concerns about the negative health effects of its use. adaptive response is the ability of a cell or tissue to better resist stress damage by prior exposure to a lesser amount of stress. this study aimed to assess whether radiofrequency radiation can induce adaptive r...
Introduction: Cement factory workers exposure to airborne particles containing crystalline silica in Portland cement chemical compound can caused pulmonary diseases, including silicosis and lung cancer. The aim of this study was to assess the risk of occupational exposure to respirable cement dust and crystalline silica in a cement factory in Khorasan Razavi province. Methods: In this cross-se...
Background & Objective : We study Surrogacy validation of Th1 and Th2, when the true endpoint is Long-term Skin Effects of Exposure to Mustard Gas based on “Martyrs and Veterans Affair” assignment. Materials & Methods : This study is a part of Sardasht-Iran cohort study. 327 chemical victims of sulfur mustard from Sardasht and 128 controlled, totally 500 persons, are studied. Results : Tr...
Background and aims: The aluminum-containing compounds are used as glaze in tile and ceramic production plants. It means that the workers working in these plants are in direct exposure to aluminum-containing compounds. The aim of this study was to assess the potential damages caused by aluminum among tile plant workers. Methods: In this cross-sectional study, 60 workers whom were in direct exp...
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