| Literature DB >> 5460040 |
I Hanin, R Massarelli, E Costa.
Abstract
A diurnal oscillation of acetylcholine concentrations in rat brain has been demonstrated by gas chromatography. Peak concentrations occur at 2 hours of light, and a trough is seen at 6 hours of darkness. This pattern is observed only in grouped rats, and emerges after at least 18 days of prior conditioning in an environment with controlled light, humidity, and temperature.Entities:
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Year: 1970 PMID: 5460040 DOI: 10.1126/science.170.3955.341
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728