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Diurnal variation in the effects of methylxanthines on rat brain levels of endogenous opioids

โœ Scribed by M.R.I. Soliman; N.S. Himaya; C.M. Winget


Book ID
115884648
Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
240 KB
Volume
183
Category
Article
ISSN
0014-2999

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## Abstract The levels of Nโ€acetylserotonin and melatonin (nโ€acetylโ€5โ€methoxytryptamine) in the rat brain were studied. Male rats were housed under a photoperiod of 12L:12D. After 2 weeks, the rats were sacrificed in light or in dark at 4โ€hour intervals round the clock. Brain melatonin and Nโ€acetyl