PMID: 8937890Nov 1, 1996Paper

Perinatal methanol exposure in the rat. I. Blood methanol concentration and neural cell adhesion molecules

Fundamental and Applied Toxicology : Official Journal of the Society of Toxicology
S SternB Weiss

Abstract

Although the acute toxicity of methanol is well documented, few studies have addressed the consequences of perinatal exposures to the low concentrations that are expected to arise from its proposed use as a component of automobile fuel. This report describes the general research design of a series of studies, the effects of methanol exposures on blood concentrations in dams and neonates, and indices of brain development. Four cohorts of Long-Evans pregnant rats, each cohort consisting of an exposure (n = 12) and a control (n = 12) group, were exposed whole-body to 4500 ppm methanol vapor or air for 6 hr daily beginning on Gestation Day 6. Both dams and pups were then exposed through Postnatal Day 21 (PND 21). Blood methanol concentrations determined by gas chromatography from samples obtained immediately following a 6-hr exposure reached approximately 500-800 micrograms/ml in the dams during gestation and lactation. Average concentrations for pups attained levels about twice those of the dams. Selected offspring from Cohort 4 were exposed for one additional 6-hr session at ages that extended out to PND 52. Regression analyses showed that the blood methanol concentrations of the pups declined until about PND 48, at which time th...Continue Reading

Citations

Feb 4, 2010·Environmental Health Perspectives·Hiromi IshitobiBernard Weiss
May 20, 1998·Molecular Neurobiology·K C BreenF D Hayes
Jul 20, 2002·Neurotoxicology and Teratology·Moammir Hasan AzizPrahlad Kishore Seth
Apr 15, 2004·Reproductive Toxicology·Michael ShelbyUNKNOWN NTP-CERHR Expert Panel

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