نتایج جستجو برای: ENDOSULFAN

تعداد نتایج: 799  

Journal: :Drug metabolism and disposition: the biological fate of chemicals 2006
Hwa-Kyung Lee Joon-Kwan Moon Chul-Hee Chang Hoon Choi Hee-Won Park Byeoung-Soo Park Hye-Suk Lee Eul-Chul Hwang Young-Deuk Lee Kwang-Hyeon Liu Jeong-Han Kim

Endosulfan (6,7,8,9,10,10-hexachloro-1,5,5a,6,9,9a-hexahydro-6,9-methano-2,3,4-benzo(e)dioxathiepin-3-oxide) is a broad-spectrum chlorinated cyclodiene insecticide. This study was performed to elucidate the stereoselective metabolism of endosulfan in human liver microsomes and to characterize the cytochrome P450 (P450) enzymes that are involved in the metabolism of endosulfan. Human liver micro...

Journal: :Journal of environmental monitoring : JEM 2003
Spencer S Walse Geoffrey I Scott John L Ferry

Solutions of alpha-endosulfan, beta-endosulfan, and technical grade endosulfan (70alpha:30beta) were added to modular estuarine mesocosms; the kinetics and degradation products from each mesocosm are reported. The persistent product endosulfan sulfate was generated in all cases; however, its yield was approximately a factor of three higher from alpha-endosulfan relative to beta-endosulfan. Beta...

2002
Tara D. Sutherland Irene Horne Robyn J. Russell John G. Oakeshott

The gram-positive bacterium Mycobacterium sp. strain ESD is able to use the cyclodiene insecticide endosulfan as a source of sulfur for growth. This activity is dependent on the absence of sulfite or sulfate in the growth medium. A cosmid library of strain ESD DNA was constructed in a Mycobacterium-Escherichia coli shuttle vector and screened for endosulfan-degrading activity in Mycobacterium s...

2016
Vijayalakshmi Pradeep Usha Malavalli Subbaiah

The current investigation is taken up with the aim of studying repeated batch and continuous degradation of Endosulfan, using Ca-alginate immobilized cells of Pseudomonas aeruginosa isolated from an agricultural soil. The work involves the study of genes and enzymes involved in the degradation of the pesticide and was carried out with an objective of reducing the toxicity of Endosulfan by degra...

Journal: :Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes 2005
H M Shivaramaiah F Sanchez-Bayo J Al-Rifai I R Kennedy

Although the use of endosulfan to control cotton pests has declined, this insecticide still has widespread application in agriculture and can contaminate riverine systems as runoff from soil or by aerial deposition. The degradation of endosulfan in pure water at different pH values of 5, 7 and 9 and in river water from the Namoi and the Hawkesbury rivers of New South Wales (NSW), Australia, was...

Journal: :Environmental science & technology 2002
Spencer S Walse Ken D Shimizu John L Ferry

We report the effect of suspended solids on the oxidation and hydrolysis of the insecticide endosulfan (alpha and beta isomers) and its degradation products: endosulfan diol, endosulfan sulfate, endosulfan ether, and endosulfan lactone in 0.001 M NaHCO3 buffer (pH 8.15). Suspensions of sea sand, TiO2, alpha-Fe2O3, alpha-FeOOH, Laponite, and SiO2 all catalyzed the hydrolysis of endosulfan to the...

Journal: :Journal of agricultural and food chemistry 2003
Sung-Eun Lee Jong-Soo Kim Ivan R Kennedy Jong-Woo Park Gi-Seok Kwon Sung-Cheol Koh Jang-Eok Kim

This study assesses the role of the blue-green algal species present in the soil in the dissipation of endosulfan and its metabolites in the soil environment. Two Anabaena species, Anabaena sp. PCC 7120 and Anabaena flos-aquae, were used in this study. Anabaena sp. PCC 7120 produced three principal biotransformation compounds, chiefly endosulfan diol (endodiol), and minor amounts of endosulfan ...

2014
Mariana Romero-Aguilar Efrain Tovar-Sánchez Enrique Sánchez-Salinas Patricia Mussali-Galante Juan Carlos Sánchez-Meza María Luisa Castrejón-Godínez Edgar Dantán-González Miguel Ángel Trujillo-Vera Ma Laura Ortiz-Hernández

Endosulfan is an organochloride and persistent pesticide that has caused concern because of its impact in the environment and its toxicity to and bioaccumulation in living organisms. In this study, we isolated an endosulfan-degrading fungus from the activated sludge from an industrial wastewater treatment plant. Through repetitive enrichment and successive subculture in media containing endosul...

Journal: :Applied and environmental microbiology 2000
T D Sutherland I Horne M J Lacey R L Harcourt R J Russell J G Oakeshott

An endosulfan-degrading mixed bacterial culture was enriched from soil with a history of endosulfan exposure. Enrichment was obtained by using the insecticide as the sole source of sulfur. Chemical hydrolysis was minimized by using strongly buffered culture medium (pH 6.6), and the detergent Tween 80 was included to emulsify the insecticide, thereby increasing the amount of endosulfan in contac...

Journal: :iranian journal of medical sciences 0
mohammad ali takhshid department of anesthesiology, imam reza hospital, faculty of medicine, tabriz university of medical sciences, tabriz, iran, department of anesthesiology, faculty of paramedicine, tabriz university of medical sciences, tabriz, iran ali reza tavasuli department of anesthesiology, faculty of paramedicine, tabriz university of medical sciences, tabriz, iran yazdan heidary medical library and information sciences, faculty of paramedicine, tabriz university of medical sciences, tabriz, iran mojtaba keshavarz medical library and information sciences, faculty of paramedicine, tabriz university of medical sciences, tabriz, iran hussain kargar medical library and information sciences, faculty of paramedicine, tabriz university of medical sciences, tabriz, iran

background: the role of oxidative stress in endosulfan-induced reproductive toxicity has been implicated. this study was performed to evaluate the possible protective effect of vitamins e and c, against endosulfan-induced reproductive toxicity in rats. methods: fifty adult male sprague–dawley rats were randomly divided into five groups (n=10 each). the groups included a control receiving vehicl...

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