نتایج جستجو برای: sublethal dose

تعداد نتایج: 313593  

Journal: :Agriculture 2022

Fall armyworm (FAW), Spodoptera frugiperda (Lepidoptera: Noctuidae), is a highly invasive polyphagous pest that causes great economic losses to agricultural production. Emamectin benzoate (EMB) one of the most popular biopesticides with high antipest, anti-parasitic and anti-nematode activities low toxicity. The present study was conducted determine lethality EMB FAW for 24 h. Sublethal effects...

Journal: :Infection and immunity 1983
E Carlson

Nine Staphylococcus aureus strains isolated from patients with toxic shock syndrome (TSS), two strains from non-disease-associated sources, and four strains from disease (not TSS)-associated sources were characterized for the intraperitoneal dose necessary to kill 50% of exposed animals (LD50) and toxic shock toxin production and studied for synergistic effects on mouse mortality and morbidity ...

Journal: :Medical physics 2010
Ryan T Flynn

PURPOSE Increased use of cone beam CT guidance in image guided radiotherapy has prompted the inclusion of the imaging dose in treatment plans, thus using imaging beams to treat tumors. Sublethal radiation damage repair during tau(d), the time between imaging and treatment, could reduce the effectiveness of the imaging dose, resulting in tumor underdosage. The theoretical magnitude of this effec...

Journal: :international journal of molecular and cellular medicine 0
najmeh assadi cellular and molecular biology research center (cmbrc), babol university of medical sciences , babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) ebrahim zabihi cellular and molecular biology research center (cmbrc), babol university of medical sciences , babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) meysam khosravifarsani cellular and molecular biology research center (cmbrc), babol university of medical sciences , babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) soraya khafri social medicine and health department, babol university of medical sciences, babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) haleh akhavan niaki cellular and molecular biology research center (cmbrc), babol university of medical sciences , babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) mehrangiz amiri department of nuclear medicine, paramedical faculty, babol university of medical sciences, babol, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences)

the adaptive response (ar) is a phenomenon by which cells exposure to sublethal doses of dna-damaging agents (non-mutagenic dose of chemical or radiation), known as conditioning treatment (ct), leads to increased resistance to a subsequent exposure to a higher dose of the same or other agents, known as challenge treatment (cr). the adaptive response (ar) induced by radiation in human lymphocyte...

Journal: :Journal of occupational health 2009
Masafumi Imanishi Tomotaro Dote Hiroshi Tsuji Eri Tanida Emi Yamadori Koichi Kono

OBJECTIVES In our previous study, we reported that even a sublethal dose of hydrofluoric acid (HFA) could cause acute toxic effects 60 min after intravenous injection. This study was designed to investigate the time- and dose-dependent changes associated with these disorders. The serum fluoride (F) kinetics are also considered in the discussion of the relationship between the concentrations of ...

Journal: :Environmental toxicology and chemistry 2012
Maria José Amaral Juan C Sanchez-Hernandez Rita C Bicho Miguel A Carretero Ricardo Valente Augusto M R Faustino Amadeu M V M Soares Reinier M Mann

In Europe, reptiles have been recently included in environmental risk-assessment processes for registration of plant-protection products. However, data on toxicity effects of most compounds are lacking. Chlorpyrifos is the most commonly used organophosphorus insecticide worldwide. In the present study, the authors exposed a lacertid lizard, Podarcis bocagei, to sublethal concentrations of chlor...

Journal: :caspian journal of environmental sciences 2008
m.s. prashanth

freshwater fish cirrhinus mrigala were exposed to lethal concentration (5 mg/l) for 1,2,3,4 days and sublethal concentration (1 mg/l) for 1,7,14,21 days of cypermethrin to examine the enzymes activity, in functionally three different tissues namely, gill, liver and muscle. activities of aspartate aminotransferase (aat), alanine aminotransferase (alat) and glutamate dehydrogenase (gdh) increased...

Journal: :Chemosphere 2011
I M Dubovskiy E V Grizanova N S Ershova M J Rantala V V Glupov

In this study, we tested the effects of dietary nickel on the activity of glutathione S-transferase (GST), esterases, phenoloxidase, and encapsulation in the haemolymph of larvae of the greater wax moth Galleria mellonella. We also explored the effects of dietary nickel on larval resistance to infection by the fungus Beauveria bassiana. Larvae fed a low dose of nickel (10 μg g(-1)) had signific...

Journal: :Journal of wildlife diseases 1999
S K Taylor E S Williams K W Mills

Adult male Woodhouse's toads (Bufo woodhousi) developed clinical disease, hepatomegaly, and died at a higher rate when externally exposed once to either a high or low sublethal dose (0.011 or 0.0011 mg malathion/g toad) of field grade malathion and challenged with a sublethal dose of Aeromonas hydrophila injected intraperintoneally (1.1 x 10(4) bacteria/g toad) when compared to toads not expose...

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