نتایج جستجو برای: acute and chronic exposure
تعداد نتایج: 17068453 فیلتر نتایج به سال:
Background: Brucella is a well-known intracellular bacterium entailing acute and chronic illnesses in humans and domestic animals. The infection chronicity may be affected by the cell-mediated immunity and cytokine patterns. Objective: To evaluate the patterns of T-helper cytokines in patients suffering from chronic and acute brucellosis. Methods: In this cross-sectional study, 22 individuals w...
Background: Nowadays, aromatic hydrocarbons such as benzene, toluene, and xylene are extensively used in the different environments and industries, causing adverse effects on individuals who are being exposed occupationally and environmentally to these hazardous compounds. In this study, occupational exposure to xylene in workers, employing at pathology wards of hospitals belonging to the Qazvi...
Background & Aims: Multiple evidences available about zinc oxide nanoparticles (nano-ZnO) ameliorative effects on neuroinflammation that worked in contrast to mechanisms activate with paclitaxel. In this study, effect of local and intraperitoneal application of nano-ZnO on paclitaxel-induced acute and chronic thermal hyperalgesia in mice was evaluated. Materials & Methods: Adult male mic...
cml in breif cml is characterized by the proliferation of large numbers of immature wbc in the blood and bone marrow. in most of the patients , it is a clonal disorder in which all cell lines, express the philadelphia chromosome)q/22 translocation(it accounts for 20 of all leukemias and most cases occur over 25 yrs of age. the disease usually begins insidiously,but symptoms referable to anemia ...
SUMMARY In order to investigate acute and chronic effects of exposure to warfare containing mustards in young men, the time course of changes in serum concentrations of total and free testosterone, dehydroepiandrosterone (DS), FSH, LH and prolactin was evaluated in 16 men in the first 3 months and testicular function in 42 men one to three years after injury. Serum total and free testostero...
We examined the effects of acute and chronic stress on neurotransmission of nociceptin/orphanin FQ (N/OFQ) in a variety of brain regions. Four groups of rats were exposed to chronic variable stress, and/or a single acute stress before decapitation. Group 1 served as unstressed controls. The rats in group 2 (chronic stress/no acute stress) were exposed to a 10-day regimen of chronic stress (two ...
OBJECTIVES Due to the prevalence and pervasiveness of stress in modern life and exposure to both chronic and acute stresses, it is not clear whether prior exposure to chronic stress can influence the impairing effects of acute stress on memory retrieval. This issue was tested in this study. MATERIALS AND METHODS Adult male Wistar rats were randomly assigned to the following groups: control, a...
In this report of a 5-yr longitudinal study of workers at six cotton textile mills, exposure and across-shift FEV, changes were evaluated as possible predictors of the annual change in FEV, for yarn manufacturing workers. A total of 611 workers had three repeatable spirometric tests, over at least 3yr, and at least one (average of three) across-shift test, while always working the same shift. T...
Wyatt, FB. Physiological Responses to Altitude: A Brief Review. JEPonline 2014;17(1):90-96. Hypoxia has been defined as conditions with lower than normal oxygen availability. Altitude exposure and acclimatization have been areas of research for a considerable time. The immediate (acute) effects of lowered ambient pressure of oxygen (PO2) pertaining to the human response and the adaptations to p...
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