Exposure to organochlorine pesticides, including DDT, has previously been associated with premature birth. Using an improved protocol to characterize dose and time dependent responses, the present report extends a preliminary finding by this laboratory that o,p'-DDT directly stimulates uterine contractility. Contraction frequency was determined in longitudinal uterine strips from pregnant rats ...

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...

A novel bacterium capable of utilizing 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (DDT) as the sole carbon and energy source was isolated from a contaminated soil which was identified as Stenotrophomonas sp. DDT-1 based on morphological characteristics, BIOLOG GN2 microplate profile, and 16S rDNA phylogeny. Genome sequencing and functional annotation of the isolate DDT-1 showed a 4,514,569 b...

OBJECTIVE We investigated the relationship between prenatal exposure to dichlorodiphenyltrichloroethane (DDT) and dichlorodiphenyldichloroethylene (DDE) and neurodevelopment of Mexican farm-workers' children in California. METHODS Participants from the Center for the Health Assessment of Mothers and Children of Salinas study, a birth cohort study, included 360 singletons with maternal serum m...

The organochlorine insecticide dichlorodiphenyltrichloroethane (DDT) was initially introduced for control of vector-borne discases It was banned in the United States by the Environmental Protection Agency in 1972 because of potential harmful effects on humans, wildlife and the environment. Since it is a potential human carcinogen, the United Nations Environmental Program (UNEP) has recently res...

At the recent workshop on "Automated Resource Sharing on the ARPANET", considerable interest was expressed on the topic of network security. In particular, representatives of several sites felt that uncontrolled use of IMP DDT made access control mechanisms quite vulnerable to interception or tampering.* Individuals at the workshop seemed to be in general agreement that use of DDT should be muc...

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...

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...

El Diclorodifeniltricloroetano (DDT) y Hexaclorociclohexano (HCH) son disruptores endócrinos cuya presencia en la leche representa un riesgo para salud. Existe evidencia de que pasteurización disminuye o incrementa concentración plaguicidas organoclorados productos lácteos. La presente investigación evaluó el efecto a 63 °C 30 min-1 73 15 seg-1 las concentraciones DDT, HCH sus metabolitos bovin...

o,p'-DDT is an infamous xenoestrogen as well as a ubiquitous and persistent pollutant. Biomonitoring studies show that women have been internally exposed to o,p'-DDT at range of 0.3-500 ng/g (8.46×10(-10) M-1.41×10(-6) M) in blood and other tissues. However, very limited studies have investigated the biological effects and mechanism(s) of o,p'-DDT at levels equal to or lower than current exposu...