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Title: The impact of prenatal organophosphate pesticide exposures on thai infant neurodevelopment
Authors: Pornpimol Kongtip
Benyachalee Techasaensiri
Noppanun Nankongnab
Jane Adams
Akkarat Phamonphon
Anu Surach
Supha Sangprasert
Aree Thongsuksai
Prayoon Srikumpol
Susan Woskie
Mahidol University
University of Massachusetts Boston
Sawanpracharak Hospital
Paholpolpayuhasena Hospital
Amnatcharoen Hospital
University of Massachusetts Lowell
Keywords: Environmental Science
Issue Date: 1-Jun-2017
Citation: International Journal of Environmental Research and Public Health. Vol.14, No.6 (2017)
Abstract: © 2017 by the authors. Licensee MDPI, Basel, Switzerland. A birth cohort was begun to investigate the levels and sources of pesticide exposure in pregnant women living in Thailand, and to examine the effects of pesticide exposure on infant neurodevelopment at five months of age. Subjects were interviewed using questionnaires regarding their demographic characteristics, educational background, and work and home activities related to pesticide exposures. Spot urine samples were collected at 28 weeks gestation and analyzed by gas chromatography-mass spectrometry to determine maternal metabolite levels of organophosphate pesticides including dimethyl phosphate (DMP); total DEP (diethyl phosphate (DEP), diethyl thiophosphate (DETP), and diethyl dithiophosphate (DEDTP), and total DAP (the sum of all metabolite levels). At five months of age, infant development was evaluated using the Bayley Scales of Infant and Toddler Development-III (Bayley-III). Higher total DEP and total DAP metabolite levels from the mother at 28 weeks’ gestation were significantly associated with reduced motor composite scores on the Bayley-III at five months of age. The total DEP levels were also significantly associated with reduced cognitive composite scores. Prenatal concentrations of maternal urinary metabolites were associated with infant cognitive and motor development. The results of several studies now suggest the need for public health intervention to reduce prenatal pesticide exposures from both agricultural and domestic use.
ISSN: 16604601
Appears in Collections:Scopus 2016-2017

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