Arch Environ Occup Health 2013 Jan; 68(1):39-46
Regression analysis was used to estimate and test for relationships between urinary pesticide metabolites and neurobehavioral test performance in adults, 20 to 59 years old, participating in the third National Health and Nutrition Examination Survey. The 12 pesticide metabolites included 2 naphthols, 8 phenols, a phenoxyacetic acid, and a pyridinol. The 3 neurobehavioral tests included in the survey were simple reaction time, symbol-digit substitution, and serial digit learning. As the 2,4-dichlorophenol, 2,5-dichlorophenol, and the pentachlorophenol concentrations increased, performance on the serial digit learning test improved. As the 2,5-dichlorophenol concentration increased, performance on the symbol-digit substitution test improved. At low concentrations, the parent compounds of these metabolites may act at acetylcholine and gamma-aminobutyric acid synapses in the central nervous system to improve neurobehavioral test performance.
Metabolites; Urinalysis; Pesticides; Neurological-system; Nervous-system-function; Neuromotor-function; Neuromuscular-system; Behavior; Neurotoxic-effects; Humans; Men; Women; Age-groups; Naphthalenes; Phenols; Phenolic-acids; Pyridines; Central-nervous-system
Edward F. Krieg, National Institute for Occupational Safety and Health, DART, MS-C22, Cincinnati, OH, 45226
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Archives of Environmental & Occupational Health