نتایج جستجو برای: organophosphorous pesticides
تعداد نتایج: 19825 فیلتر نتایج به سال:
The present investigation deals with histopathological and histochemical studies of profenophos on liver and kidney of male albino rats and the protective effects of vitamin C and ginseng to reduce the deleterious effect induced by profenophos. Oral administration of profenophos at dose level of 1 /10 LD50 for 15 successive days induced histological changes in liver and kidney. No histological ...
The aim of this study was to develop a simple and efficient sample preparation methodology in pesticide multiresidue analysis that shortens the analytical process during extraction and cleanup. We have conducted recovery tests of about 300 pesticides in foods with a modified method reported previously. Ten g of sample was extracted with 20 ml of acetonitrile using a high-speed homogenizer. One ...
OBJECTIVE The purpose of this work was to compare DNA damage, acetylcholinesterase (AChE) activity, inflammatory markers and clinical symptoms in farmers exposed to organophosphorus pesticides to individuals that had no pesticide exposure. MATERIALS AND METHODS We conducted a cross-sectional survey with a total of 134 people. The subject group consisted of 67 farmers who were exposed to organ...
Backgrounds and Objectives: Water contamination by pesticides is considered as an environmentalproblem today. In terms of agricultural development and diversity of plant pests, the use of pesticides has been increasing. Hamedan province has a suitable agricultural condition, it has enjoyed significant development in this respect. Among all the cities of Hamedan province, Hamedan city has the hi...
Organophosphorus compounds have been used as pesticides and as chemical warfare nerve agents. The mechanism of toxicity of organophosphorus compounds is the inhibition of acetylcholinesterase, which results in accumulation of acetylcholine and the continued stimulation of acetylcholine receptors. Therefore, they are also called anticholinesterase agents. Organophosphorus pesticides have largely...
Race Phytoseiulus Persimilis A.-H. (Acarina: Phytoseiidae)—Resistant to Organophosphorous Pesticides
Herein, we report a portable electrochemical biosensor based on butyrylcholinesterase (BChE) immobilized on carbon black (CB)-modified screen-printed electrodes (SPEs) for the detection of organophosphorous pesticides in olive oil. The BChE/CB-SPE biosensor was developed to detect paraoxon in standard solutions as well as in olive oil samples previously treated with the QuEChERS method to extra...
BACKGROUND Organophosphorous (OP) pesticides are associated with reduced fetal growth in animals, but human studies are inconsistent. OBJECTIVES We pooled data from four cohorts to examine associations of prenatal OP exposure with birth weight (n = 1,169), length (n = 1,152), and head circumference (n = 1,143). METHODS Data were from the CHAMACOS, HOME, Columbia, and Mount Sinai birth cohor...
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