effects of long-term exposure to hydrogen sulfide on human red blood cells

Effects of long-term exposure to hydrogen sulfide on human red blood cells.

BACKGROUND Hydrogen sulfide (H2S) exhibits both physiological and toxicological roles in the biological systems. Acute exposure to high levels of H2S is life threatening while long-term exposure to ambient levels of H2S elicits human health effects. OBJECTIVE To study the harmful effects of long-term exposure to low levels of H2S on human blood cells. METHODS 110 adult workers from Iran who...

the effects of keyword and context methods on pronunciation and receptive/ productive vocabulary of low-intermediate iranian efl learners: short-term and long-term memory in focus

از گذشته تا کنون، تحقیقات بسیاری صورت گرفته است که همگی به گونه ای بر مثمر ثمر بودن استفاده از استراتژی های یادگیری لغت در یک زبان بیگانه اذعان داشته اند. این تحقیق به بررسی تاثیر دو روش مختلف آموزش واژگان انگلیسی (کلیدی و بافتی) بر تلفظ و دانش لغوی فراگیران ایرانی زیر متوسط زبان انگلیسی و بر ماندگاری آن در حافظه می پردازد. به این منظور، تعداد شصت نفر از زبان آموزان ایرانی هشت تا چهارده ساله با...

Long-term Developmental Effects of Lactational Exposure to Lead Acetate on Ovary in Offspring Wistar Rats

Effects of High Doses of X-Ray on Hematological Parameters and Morphology of Red Blood Cells in Human Blood

Introduction: The aim of the current study was to investigate the effects of X-ray radiation on some hematological parameters, morphology of red blood cells (RBC) and erythrocyte sedimentation rate (ESR) analysis of human blood using computed tomography (CT) scanner. Material and Methods: For the purpose of the study, 5 ml of wholeblood was drawn from vein puncture of 28 healthy people and div...

Sensory and Cognitive Effects of Acute Exposure to Hydrogen Sulfide

BACKGROUND Some epidemiologic studies have reported compromised cognitive and sensory performance among individuals exposed to low concentrations of hydrogen sulfide (H2S). OBJECTIVES We hypothesized a dose-response increase in symptom severity and reduction in sensory and cognitive performance in response to controlled H2S exposures. METHODS In separate exposure sessions administered in ra...

The Effect of Long-Term X-Ray Exposure on Human Lymphocyte

The aim of the paper is to investigate effects of long term x-ray exposure on the human lymphocyte, reactive lymphocyte parameters and morphology of lymphocytes in x-ray technicians at Kirkuk hospitals. The study included 54 apparently healthy male x-ray technicians were matched with another 54 apparently healthy control to show any alteration in the lymphocytes, reactive lymphocytes and morpho...