Neurobehavioural effects of developmental toxicity

http://www.thelancet.com/neurology
Vol 13 March 2014
Review
Neurobehavioural effects of developmental toxicity
Philippe Grandjean, Philip J Landrigan
Neurodevelopmental disabilities, including autism, attention-deficit hyperactivity disorder, dyslexia, and othercognitive impairments, affect millions of children worldwide, and some diagnoses seem to be increasing in frequency.
Industrial chemicals that injure the developing brain are among the known causes for this rise in prevalence. In 2006,we did a systematic review and identified five industrial chemicals as developmental neurotoxicants: lead,methylmercury, polychlorinated biphenyls, arsenic, and toluene. Since 2006, epidemiological studies have documentedsix additional developmental neurotoxicants—manganese, fluoride,chlorpyrifos,dichlorodiphenyltrichloroethane,tetrachloroethylene, and the polybrominated diphenyl ethers. We postulate that even more neurotoxicants remain undiscovered. To control the pandemic of developmental neurotoxicity, we propose a global prevention strategy.Untested chemicals should not be presumed to be safe to brain development, and chemicals in existing use and allnew chemicals must therefore be tested for developmental neurotoxicity. To coordinate these efforts and to acceleratetranslation of science into prevention, we propose the urgent formation of a new international clearinghouse…..

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