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The effect of prenatal exposure to methadone on neurotransmitters in neonatal rats
H Z Guo1, E K Enters, K P McDowell
1Department of Pharmacology and Toxicology, Medical College of Virginia, Virginia Commonwealth University, Richmond 23298-0613.
The effect of prenatal exposure to methadone via maternal osmotic minipumps was studied on neurotransmitter content of 4-day-old male and female rats. Several sex-related differences were observed in brain regional neurotransmitter content. Prenatal exposure to methadone produced only selective changes in brain regional neurotransmitter content. Exposure to methadone in doses sufficient to produce maternal and fetal dependence selectively reduced striatal acetylcholine content and produced a sex-dependent change in hindbrain acetylcholine.
The effect of prenatal exposure to methadone via maternal osmotic minipumps was studied on neurotransmitter content of 4-day-old male and female rats. Several sex-related differences were observed in brain regional neurotransmitter content. Prenatal exposure to methadone produced only selective changes in brain regional neurotransmitter content. Exposure to methadone in doses sufficient to produce maternal and fetal dependence selectively reduced striatal acetylcholine content and produced a sex-dependent change in hindbrain acetylcholine.