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- W2064540971 abstract "Cortical slices were prepared from male rats 3 to 28 months old. The slices were superfused with choline-enriched Krebs solution containing physostigmine and electrically stimulated at frequencies of 1, 2 and 5 Hz for 5 min periods preceded and followed by rest periods. The amount of acetylcholine released during the stimulation periods was quantified by bioassay. In some experiments acetylcholine content was measured at the end of the superfusion period in stimulated and unstimulated slices. The evoked acetylcholine release was constant between 3 and 11 months of age at each f frequency tested and showed a 50% decrease between 11 and 14 months of age with no further decrease up to 28 months. No difference in the evoked acetylcholine release was detected between 3 and 16 month old rats if the old rats were pretreated with phosphatidylserine 15 mg/kg IP for at least 7 days. The effect of phosphatidylserine lasted for 5 days after interruption of the treatment. There was no difference in acetylcholine content between the stimulated and unstimulated slices in 3 month old rats. In 16 month old rats stimulation brought about a 44% decrease in acetylcholine content. This decrease did not occur in rats pretreated with phosphatidylserine for 7 days. Phosphatidylserine appears to restore acetylcholine release in aging rats by maintaining an adequate acetylcholine supply in the slices." @default.
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- W2064540971 date "1987-09-01" @default.
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- W2064540971 title "Effect of phosphatidylserine on acetylcholine release and content in cortical slices from aging rats" @default.
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- W2064540971 doi "https://doi.org/10.1016/0197-4580(87)90034-0" @default.
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