نتایج جستجو برای: ddt

تعداد نتایج: 3049  

2015
Nosiku Sipilanyambe Munyinda Charles Michelo Kwenga Sichilongo

BACKGROUND In 2000, a Zambian private mining company reintroduced the use of dichlorodiphenyltrichloroethane (DDT) to control malaria in two districts. From 2000 to 2010, DDT had been applied in homes without any studies conducted to ascertain its fate in the environment. We aimed to quantify the presence of DDT and its metabolites in the soil and water around communities where it was recently ...

2012
Meirong Zhao Cui Wang Chunlong Zhang Yuezhong Wen Weiping Liu

BACKGROUND The continued uses of dichlordiphenyltrichloroethane (DDT) for indoor vector control in some developing countries have recently fueled intensive debates toward the global ban of this persistent legacy contaminant. Current approaches for ecological and health risk assessment has ignored the chiral nature of DDT. In this study by employing an array of cytotoxicity related endpoints, we...

2012
Maria N. Manaca Joan O. Grimalt Merce Gari Jahit Sacarlal Jordi Sunyer Raquel Gonzalez Carlota Dobaño Clara Menendez Pedro L. Alonso

INTRODUCTION We report on the analysis of 4,4'-dichlorodiphenyltrichloroethane (4,4'-DDT) and its metabolites in thatch and branch samples constituting the wall materials of dwellings from South African subtropical areas. This approach was used to assess the exposure to DDT in the residents of the dwellings after indoor residual spraying (IRS) following recommended sanitation practices against ...

2017
Thierry Roger Luregn J. Schlapbach Anina Schneider Manuela Weier Sven Wellmann Patrick Marquis David Vermijlen Fred C. G. J. Sweep Lin Leng Richard Bucala Thierry Calandra Eric Giannoni

Macrophage migration inhibitory factor (MIF) is a pleiotropic, constitutively expressed, pro-inflammatory cytokine and an important regulator of immune responses. d-dopachrome tautomerase (DDT), a newly described member of the MIF protein superfamily, shares sequence homology and biological activities with MIF. We recently reported that high expression levels of MIF sustain innate immune respon...

Journal: :Environmental Health Perspectives 2002
Vladimir Turusov Valery Rakitsky Lorenzo Tomatis

Due to uncontrolled use for several decades, dichlorodiphenyltrichloroethane (DDT), probably the best known and most useful insecticide in the world, has damaged wildlife and might have negative effects on human health. This review gives a brief history of the use of DDT in various countries and presents the results of epidemiologic and experimental studies of carcinogenesis. Even though its us...

2007
Armando Meyer

DDT is a persistent insecticide that was widely used in the world from the 1940s until the 70s, when it was banned in the United States and other countries. Most of its toxic effects are not observed in the acute forms, but particularly after chronic exposure. These long-term issues include reproductive effects, varying according to the time of life in which the individuals were exposed. The ai...

Journal: :American Journal of Public Health and the Nations Health 1960

Journal: :Environmental Health Perspectives 1997
L Rivero-Rodriguez V H Borja-Aburto C Santos-Burgoa S Waliszewskiy C Rios V Cruz

DDT has systematically been used in sanitation campaigns against malaria in Mexico. To assess chronic occupational exposure, we studied a group of workers dedicated to spraying houses to control malaria vectors in the state of Veracruz. Exposure was directly estimated for a subgroup of 40 workers by measuring DDT metabolites in adipose tissue samples and indirectly estimated for 331 workers by ...

2012
Syreeta L. Tilghman Melyssa R. Bratton H. Chris Segar Elizabeth C. Martin Lyndsay V. Rhodes Meng Li John A. McLachlan Thomas E. Wiese Kenneth P. Nephew Matthew E. Burow

BACKGROUND Several environmental agents termed "endocrine disrupting compounds" or EDCs have been reported to bind and activate the estrogen receptor-α (ER). The EDCs DDT and BPA are ubiquitously present in the environment, and DDT and BPA levels in human blood and adipose tissue are detectable in most if not all women and men. ER-mediated biological responses can be regulated at numerous level...

2011
Roland Ritter Martin Scheringer Matthew MacLeod Konrad Hungerbühler

BACKGROUND People who live in dwellings treated with indoor residual spraying (IRS) of DDT [1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane] for disease-vector control in the tropics and indigenous populations in the Arctic who consume marine mammals experience high nonoccupational exposure to DDT. Although the use of DDT in IRS is rising, the resulting nonoccupational exposure is poorly characte...

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