DDT

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DDT

 [dichlorodiphenyltrichloroethane]
a moderately toxic chlorinated hydrocarbon pesticide, formerly widely used but now banned in the United States except for a few specialized purposes because its extremely long half-life causes ecological damage.

DDT

DDT

(dē′dē-tē′)
n.
A contact insecticide, C14H9Cl5, occurring as colorless crystals or a whitish powder, toxic to humans and animals when swallowed or absorbed through the skin. Most uses have been banned in the United States since 1972.

DDT

A gene on chromosome 22q11.23 that encodes an enzyme belonging to the MIF family which converts D-dopachrome into 5,6-dihydroxyindole.

DDT

Dichloro-diphenyl-trichloroethane Environment A highly hepatotoxic and potentially neurotoxic insecticide that accumulates in fat; DDT is non-biodegradable and concentrates up the food chain. See Pesticide.

DDT

Abbreviation for dichloro-diphenyl- trichloroethane.

DDT

Dichloro-diphenyl-trichloroethane. This highly effective insecticide kills flies, mosquitos, lice, butterflies, moths and beetles. The use of DDT has saved millions of human lives that would otherwise have been lost from MALARIA, YELLOW FEVER, TYPHUS, PLAGUE, river blindness (ONCHOCERCIASIS), DYSENTERY, SLEEPING SICKNESS and FILARIASIS. For ecological reasons it has now been largely replaced by organophosphorous insecticides such as Malathion, Parathion and Paraquat.

DDT

abbrev. (d ichlorod iphenyl-t richloroethane) a chlorinated hydrocarbon which acts as a powerful insecticide with long-lasting effects. DDT was the first major insecticide in use. Although DDT is cheap to manufacture, its use has adverse ecological consequences. Its lack of biodegradability and the fact that it tends to accumulate in fatty tissues has resulted in its transfer from one consumer to another up the FOOD CHAIN becoming concentrated at each step. One effect of this has been to endanger the top carnivorous birds whose eggshells have become paper-thin because DDT has prevented the mobilization of calcium in the oviduct, so reducing the reproductive potential of many rare species. While these processes have been occurring the target insects have been subjected to strong SELECTION pressure from the DDT, with the result that highly resistant populations now exist, making the insecticide useless in many parts of the world.
References in periodicals archive ?
The associations of BMI-z with the exposure to the other DDTs were by far less evaluated, and the meta-analysis of such subsamples was not feasible.
However, we have not seen any evidence in the experimental literature indicating DDTs cause hyperphagia or sedentary activity (La Merrill 2014; Howell et al.
Experimental evidence suggests that DDTs can act on several arms of the renin angiotensin system (RAS) to possibly increase risk of hypertension.
Because DDTs were not measured during the life of the daughters and pharmacokinetic modeling has not been attempted, we cannot rule out the possibility that exposure after birth contributed to the association between prenatal p,p'-DDT exposure and adult hypertension.
KEY WORDS: computational biology, DDT, genomics, proteomics, systems biology.
The pesticide dichlorodiphenyltrichloroechane (DDT) was marketed as an ideal insecticide with long-term protection; however, the environmental persistence of DDT and its metabolite dichlorodiphenyldichloroethylene (DDE) resulted in bioaccumulation and delayed or latent adverse effects.
METHODS: We compiled > 600 average or median DDT concentrations from the peer-reviewed literature, representing > 23,000 individual measurements in humans, food, air, soil, and dust.
In the present study we investigated the interactive effects of domoic and the DDT congeners o,p'-DDT and p,p'-DDE on neurodevelopment using zebrafish.
Women born in the Southeast had significantly higher o,p'-DDT, p,p'DDE, p,p'-DDT, and sum of DDTs, and those born in California had higher serum p,p'-DDT and sum of DDTs.
To evaluate the effects of developmental DDT exposure on adult VTG synthesis, adult male and female VTG scores relative to dose were analyzed by separate one-way ANOVAs.
The ratio between DDT and DDE diminishes over time due to metabolism and offers some clues concerning the nature of the pollution source.