Neurochemical Effects of Repeated Gestational Exposure to Chlorpyrifos in Developing Rats
نویسندگان
چکیده
منابع مشابه
Neurochemical and neurobehavioral effects of repeated gestational exposure to chlorpyrifos in maternal and developing rats.
Acute exposure to the organophosphate pesticide chlorpyrifos (CPF) on gestation day 12 (GD12, 200 mg/kg/ml, SC) causes extensive neurochemical changes in maternal brain but lesser changes in fetal brain. In the present study, we examined the relative neurotoxicity of repeated, lower-level CPF exposures during gestation in rats. Pregnant Sprague-Dawley rats were exposed to CPF (6.25, 12.5, or 25...
متن کاملNeurochemical effects of repeated gestational exposure to chlorpyrifos in developing rats.
The neurochemical effects in developing rats exposed during gestation to the anticholinesterase organophosphorus insecticide chlorpyrifos (CPS) were determined. Pregnant rats were dosed daily with CPS (0, 3, or 7 mg/kg) in corn oil from gestation days (GD) 6-20. Pups were euthanized on postnatal days (PND) 1, 3, 6, 9, 12, and 30 for the determination of brain cholinesterase (ChE) and choline ac...
متن کاملEffects of repeated oral postnatal exposure to chlorpyrifos on cholinergic neurochemistry in developing rats.
The neurochemical effects of repeated postnatal exposure to chlorpyrifos (CPS) were studied in developing rats. Rats were gavaged daily from postnatal day (PND) 1-21 with CPS in corn oil starting at 1.5 mg/kg (low dosage group) and increasing gradually to 3 mg/kg and then to 6 mg/kg (high dosage group). Brain cholinesterase (ChE) activity was significantly inhibited on PND 6, 12, 22, and 30, wi...
متن کاملEffects of repeated oral postnatal exposure to chlorpyrifos on open-field behavior in juvenile rats.
Organophosphorus (OP) insecticides have the potential to cause behavioral effects in children. This study was designed to determine if repeated oral exposure of preweanling rats to chlorpyrifos would produce behavioral changes at both pre- and postweanling ages. Treatment occurred every second day beginning on post-natal day (PND) 1, and continued through PND 21. The rats received one of the fo...
متن کاملNeurobehavioral effects of chronic dietary and repeated high-level spike exposure to chlorpyrifos in rats.
This study aimed to model long-term subtoxic human exposure to an organophosphorus pesticide, chlorpyrifos, and to examine the influence of that exposure on the response to intermittent high-dose acute challenges. Adult Long-Evans male rats were maintained at 350 g body weight by limited access to a chlorpyrifos-containing diet to produce an intake of 0, 1, or 5 mg/kg/day chlorpyrifos. During t...
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ژورنال
عنوان ژورنال: Toxicological Sciences
سال: 2003
ISSN: 1096-0929
DOI: 10.1093/toxsci/kfh014