Background: The organochlorine DDT has estrogenic activity but the mechanism underlying the estrogenic activity of this pesticide remains unclear. In the present investigation here, we studied the transcriptional effects of a synthetic organochlorine pesticide o,p’-DDT [1.1.1.-trichloro-2-(o-chlorophenyl)-2-p-chloriphenyl ethane] and its metabolite p,p'-DDE (2-2-bis(4/chlorophenyl)-1-1-di...

The Stockholm Convention on Persistent Organic Pollutants granted a controversial exemption for some countries to continue using DDT. DDT has a history of use in malaria control, but widespread concern about health risks led to declining use. A science-based policy analysis of existing published literature was conducted to consider DDT toxicology and malaria risk in South Africa to generate dat...

Indoor residual spraying with DDT was the principle method by which malaria transmission was eradicated or greatly reduced in many countries between the late 1940s and 1970s. Since then, decreasing use of DDT has been associated with a resurgence of malaria in India, Sri Lanka, former Soviet Central Asia, Zanzibar, Venezuela and several other Latin American countries. In India and Zanzibar, DDT...

BACKGROUND Basic health indicators, such as body mass index (BMI), have been associated with serum 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane/1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (DDT/DDE) levels; however, both positive and inverse associations of BMI with serum DDT/DDE have been reported. Given the association of BMI with a number of outcomes, it may confound studies of DDT/DDE-asso...

BACKGROUND Few studies have examined predictors of DDT (dichlorodiphenyltrichloroethane) and DDE (dichlorodiphenyldichloroethylene) levels among residents in homes sprayed with DDT for malaria control with the aim of identifying exposure-reduction strategies. METHODS The present analysis included 381 women enrolled in the Study of Women and Babies (SOWB) during 2010-2011, from eight South Afr...

BACKGROUND & OBJECTIVES Impact of indoor residual spraying of DDT on malaria transmission and vector density was evaluated in six villages of Shergarh PHC, Bareilly district, Uttar Pradesh under the operational condition of National Vector Borne Disease Control Programme (NVBDCP) from July 2001 to March 2002 (one transmission season only). METHODS Two rounds of DDT (50% WDP) spraying @ 1 g/m2...

The detection of people that are infected with COVID-19 is critical issue due to the high variance appearing symptoms between them. Therefore, different medical tests adopted detect patients, such as Polymerase Chain Reaction (PCR) and SARS-CoV-2 Antibodies. In order produce a model for detecting people, decision-making techniques can be utilized. this paper, decision tree technique based Decis...

Purpose: To assess changes in the tear film and delayed drainage after upper or lower, combined punctal occlusion using dissolvable polydioxanone plugs patients with dry eye.Methods: In total, 40 eye (80 eyes) were enrolled: four groups of 10 (20 no, upper, lower occlusions. Dissolvable placed. The break-up time (tBUT) meniscus height (TMH) measured, Schirmer I test dye disappearance (DDT) perf...

DDT remains an important type of persistent organic pollutant (POP) in the environment of China. One of the current applications of DDT in China has been through antifouling paint for fishing ships as an active component. It has been estimated that approximately 5000 t of DDT was released into the Chinese coastal environment during the last two decades. Therefore, sediments in coastal fishing h...

AIMS To determine if 'Defocus Incorporated Soft Contact' (DISC) lens wear slows childhood myopia progression. METHODS A 2-year double-blind randomised controlled trial was carried out in 221 children aged 8-13 years, with myopia between -1.00 and -5.00 Dioptres (D) and astigmatism ≤1.00 D. Subjects were randomly assigned to the DISC (n=111) or single vision (SV; n=110) contact lens group. DIS...