نتایج جستجو برای: organophosphorus

تعداد نتایج: 2782  

Journal: :African health sciences 2013
I A Hundekari A N Suryakar D B Rathi

BACKGROUND Pesticide poisoning is an important cause of morbidity and mortality in India. OBJECTIVES To assess the oxidative damage, hemoglobin level and leukocyte count in acute organophosphorus pesticide poisoning. METHODS Plasma cholinesterase was assessed as a toxicity marker. Oxidative damage was assessed by estimating serum malondialdehyde (MDA) levels, plasma total antioxidant capaci...

ژورنال: مجله طب نظامی 2019

Organophosphorus compounds are widely used in pesticides, insecticides in agriculture and as nervous chemical agents. These chemicals inhibit the acetylcholinesterase enzyme activity that is responsible for the nervous impulse in organisms. This effect leads to an increase in acetylcholine level and finally neuronal complications. Many methods are used to degrade and decontaminate these compou...

2004
MOHAMED B. ABOU-DONIA

Organophosphorus compounds are potent neurotoxic chemicals that are widely used in medicine, industry, and agriculture. The neurotoxicity of these chemicals has been documented in accidental human poisoning, epidemiological studies, and animal models. Organophosphorus compounds have 3 distinct neurotoxic actions. The primary action is the irreversible inhibition of acetylcholinesterase, resulti...

2014
Jian Tian Li Xu Shuangyu Zhang Wen Sun Xiaoyu Chu Ningfeng Wu

Pseudomonas sp. strain 1-7, isolated from organophosphorus-polluted sludge, is able to degrade many organophosphorus compounds. Here, we report the draft genome sequence of Pseudomonas sp. strain 1-7.

2017
P. Joshi

An innovative method is given for the estimation of certain organophosphorus insecticides in the serum of occupational persons. The compounds are extracted with a mixture of acetone and diethyl ether (1:1 v/v) in acidic medium and the extraction residue is analyzed by gas chromatography with nitrogen phosphorus detection method. The method for percentage recovery for the six different organopho...

2013
Anjum Gahlaut Ashish Gothwal Anil K. Chhillar Vikas Hooda

In last few decades there is exponential increase in use of organophosphorus (OP) compounds as pesticides and insecticides leading to adverse effect on human population and live stock. There is a great need to develop portable analytical tools that are amenable for remediation and bioremediation process monitoring, where rapid analysis of large number of samples is essential. Determination of v...

2011
Syed M Nurulain

Oximes are well known as acetylcholinesterase reactivators and are used in organophosphorus poisoning to reactivate inhibited acetylcholinesterase. Therapeutically available oximes, namely, pralidoxime (2-PAM), obidoxime, trimedoxime and Hagedorn oxime (HI-6), have no broad-spectrum activity against structurally different kinds of organophosphorus anticholinesterases. The widely used oxime, 2-P...

Journal: :Acta crystallographica. Section F, Structural biology and crystallization communications 2013
Guillaume Gotthard Julien Hiblot Daniel Gonzalez Eric Chabrière Mikael Elias

Enzymes that are capable of degrading neurotoxic organophosphorus compounds are of increasing interest because of the lack of efficient and clean methods for their removal. Recently, a novel organophosphorus hydrolase belonging to the metallo-β-lactamase superfamily was identified and isolated from the mesophilic bacterium Pseudomonas pseudoalcaligenes. This enzyme, named OPHC2, is endowed with...

Journal: :Critical Care 2002
Soupramanien Sivagnanam

This letter is a response to the report by Sungur and Güven [1] on intensive care management of organophosphate insecticide poisoning, which was recently published in Critical Care. Insect damage costs the world loses approximately 6 billion pounds sterling every year. Use of pesticides has increased food production in parallel with population growth in many parts of the world. Many insect-born...

2013
Hideki Yorimitsu

Organophosphorus compounds are important in organic chemistry. This review article covers emerging, powerful synthetic approaches to organophosphorus compounds by homolytic substitution at phosphorus with a carbon-centered radical. Phosphination reagents include diphosphines, chalcogenophosphines and stannylphosphines, which bear a weak P-heteroatom bond for homolysis. This article deals with t...

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