نتایج جستجو برای: ddt and o

تعداد نتایج: 17093713  

2001

DDT is an organochlorine insecticide that has found a broad range of agricultural and nonagricultural applications in the United States and worldwide beginning in 1939. In 1972, DDT use was banned in the United States and in many parts of the world, except for use in controlling emergency public health problems. DDT is still used in certain parts of the world to control vector-borne diseases, s...

Journal: :Environmental Health Perspectives 2008

2013
Billy Fossog Tene Rodolphe Poupardin Carlo Costantini Parfait Awono-Ambene Charles S. Wondji Hilary Ranson Christophe Antonio-Nkondjio

BACKGROUND In the city of Yaoundé in Cameroon malaria is predominately transmitted by the M and S molecular forms of Anopheles gambiae and both are resistant to the pyrethroid insecticides and DDT. Mutations in the target site of these insecticides, present at a high frequency in malaria vectors in this city, contribute to this resistance profile. To identify additional resistance mechanisms, t...

Journal: :International journal of cancer 2016
Dawei Guo Jinshuai Guo Junchao Yao Kun Jiang Jianhua Hu Bo Wang Haiyang Liu Lin Lin Wenyu Sun Xiaofeng Jiang

Previous studies have established the important role of MIF in the development of pancreatic ductal adenocarcinoma (PDAC) for both therapeutic and diagnostic perspectives, but little is known about the expression and function of D-dopachrome tautomerase (DDT), a functional homolog of MIF, in PDAC. In the present study, we demonstrated that DDT was over-expressed in PDAC tissues in a pattern cor...

Journal: :Chemosphere 2011
Maria N Manaca Joan O Grimalt Jordi Sunyer Inacio Mandomando Raquel Gonzalez Jahit Sacarlal Carlota Dobaño Pedro L Alonso Clara Menendez

Breast milk concentrations of 4,4'-DDT and its related compounds were studied in samples collected in 2002 and 2006 from two populations of mothers in Manhiça, Mozambique. The 2006 samples were obtained several months after implementation of indoor residual spraying (IRS) with DDT for malaria vector control in dwellings and those from 2002 were taken as reference prior to DDT use. A significant...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Ting-Lan Chiu Zhimou Wen Sanjeewa G Rupasinghe Mary A Schuler

One of the challenges faced in malarial control is the acquisition of insecticide resistance that has developed in mosquitoes that are vectors for this disease. Anopheles gambiae, which has been the major mosquito vector of the malaria parasite Plasmodium falciparum in Africa, has over the years developed resistance to insecticides including dieldrin, 1,1-bis(p-chlorophenyl)-2,2,2-trichloroetha...

2009
Henk van den Berg

In this article I reviewed the status of dichlorodiphenyltrichloroethane (DDT), used for disease vector control, and its benefits and risks in relation to the available alternatives. Contemporary data on DDT use were obtained from questionnaires and reports as well as a Scopus search to retrieve published articles. Nearly 14 countries use DDT for disease control, and several others are reintrod...

2015
N. Lavanya S. Govindaraj R.Babu Rajendran

The study was aimed to determine the concentrations of organochlorine pesticides (OCPs) in bovine milk (both branded and unbranded) collected from in and around Tiruchirappalli city, Southern India. The results of the present investigation indicated that these milk specimens were found to be contaminated with 7 different pesticides. Mirex (higher incidence), Heptachlor, o,p’-DDD, o,p’DDE, Aldri...

Journal: :Journal of the National Cancer Institute 2006
Katherine A McGlynn Christian C Abnet Mingdong Zhang Xiu-Di Sun Jin-Hu Fan Thomas R O'Brien Wen-Qiang Wei Betty A Ortiz-Conde Sanford M Dawsey Jean-Philippe Weber Philip R Taylor Hormuzd Katki Steven D Mark You-Lin Qiao

BACKGROUND 1,1,1-Trichloro-2,2-bis(p-chlorophenyl)ethane (DDT) exposure has been demonstrated to cause liver tumors in laboratory rodents. DDT's persistent metabolite and environmental degradation product, 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (DDE), has also been associated with liver tumors in laboratory animals. Whether DDT and DDE are associated with hepatocarcinogenesis in humans is...

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