نتایج جستجو برای: exposure to concentrations around 40

تعداد نتایج: 10780847  

Hossein Rahmani, Mohammadkazem Khalesi, Sohrab Kohestan Eskandari, Zeynab Abedi,

Background: The present study compared lethal concentrations (LC50-96 h) of CdCl2, CrCl3, and Pb (NO3)2 between two scaled and scaleless freshwater fish species: Cyprinus carpio (Cyprinidae) and Pangasius hypophthalmus (Pangasiidae). Methods: The experimental fishes were obtained from fish markets/ponds with average lengths and weights of approximately 11.68 ±1.92 and 9.8±1.9 cm, and 25.92±6....

Journal: :international journal of environmental research 2011
p. nassiri m.r. monazzam m. yunesian m.h. sowlat m.h. safari

the ever increasing rate of power consumption has led to an increase in public exposure to extremely low frequency magnetic fields (elf-mfs) and brought severe concerns about their health effects. considering previous studies and the facts about potential health effects of these fields, the present study aimed to evaluate the elf-mf flux densities from power distribution lines near hospitals i...

Journal: :Toxicology communications 2021

Incidence of carbon monoxide (CO) poisoning in Nepal has not been studied. The objective this study was to evaluate baseline carboxyhemoglobin (COHb) concentrations, population risk factors, and incidence CO at a single hospital Nepal. This prospective, observational patients presenting Patan Hospital Emergency Department from April 2019 March 2020. Demographics, factors for poisoning, symptoms...

Journal: :Antimicrobial agents and chemotherapy 1983
R H Alford B B Cartwright

Human peripheral blood lymphocytes stimulated with Histoplasma capsulatum yeasts were exposed in culture to graded concentrations of ketoconazole or amphotericin B and subsequently assessed for membrane integrity, thymidine uptake, and blastogenesis. Lymphocyte reactivity varied with concentration and duration of exposure to ketoconazole. Overt membrane toxicity resulted from exposure to 40 mic...

Journal: :medical journal of islamic republic of iran 0
f azizi from the endocrine research center and the department of medicine, shahid beheshti university of medical sciences, tehran, islamic republic of iran. h elyasi h sohrabpour n jalali m nafarabadi

serum concentration of fsh, lh, testosterone, prolactin, acth, cortisol, tsh, t4, t3 and resin t3 uptake were measured in 146 men who were exposed to vesicants used by the iraqi regime a few days t04 weeks prior to testing. clinical and laboratory findings had confirmed the use of mustard gas. mean serum concentrations of fsh, lh, tsh and prolactin were not significantly different from normal v...

Journal: :The new microbiologica 2016
Maria Grazia Capretti Concetta Marsico Matteo Conti Luigi Tommaso Corvaglia Santo Arcuri Giacomo Faldella Maria Carla Re

Prophylaxis with zidovudine and 3 doses of nevirapine (NVP) is recommended for infants born to HIV-1 infected untreated mothers to prevent HIV-1 mother-to-child transmission. However little is known about NVP pharmacokinetics in neonates, mostly in preterm infants. We performed therapeutic monitoring of NVP plasma concentrations in a 32-week preterm HIV-1 exposed infant born to an infected untr...

Journal: :Ecological Indicators 2021

Atrazine is one of the most used herbicides and its over-application in fields can affect soils their associated biota. In this work, earthworms (Eisenia fetida) were exposed to different concentrations atrazine assess possible sublethal harmful effects. search for reliable biomarkers these effects, acetylcholinesterase (AChE), alkaline phosphatase (ALP) lactate dehydrogenase (LDH) activities m...

Journal: :Comparative biochemistry and physiology. Toxicology & pharmacology : CBP 2003
Martin Grosell Chris M Wood Patrick J Walsh

Clear nosed skate, Raja erinacea were exposed to 0.10 (control), 0.52 or 1.73 microM copper and sculpin, Myoxocephalus octodecemspinosus were exposed to 0.10 or 1.73 microM copper (as CuSO4) in Salisbury Cove seawater for up to seven days. Skate gill copper concentrations increased 40-50 fold over background in response to copper exposure at both concentrations. In comparison, sculpin gill leve...

A. Ghorohi H. Pourgholam M. Soltani M.D. Hassan R. Nahavandi R. Pourgholam,

Chemiluminescent response of grass carp (Ctenopharyngodon idella) was assessed to determine the effect of various concentrations of diazinon on the phagocytosis of grass carp in order to evaluate the fish immunity after exposure to this toxic chemical. One hundred and twenty specimens with individual weight of 850±155g were exposed to various concentrations of diazinon at 1, 2 and 4mg/L provide...

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