Aging alters resynchronization of the circadian system in rats after a shift of the light-dark cycle |
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| Authors: | M Bure?ová O Bene?ová H Illnerová |
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| Institution: | (1) Institute of Physiology, Czechoslovak Academy of Sciences, Vide ská 1083, CS-142 20 Prague 4, (Czechoslovakia);(2) Research Institute of Psychiatry, Ústavni 91, CS-180 00 Prague 8, (Czechoslovakia) |
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| Abstract: | Summary Four days following an 8-h advance of the light-dark cycle, the circadian rhythms in the pineal N-acetyltransferase activity and melatonin content reappeared in 7-week-old rats, but were still abolished in 24-month-old animals. |
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| Keywords: | Aging rat circadian system entrainment N-acetyltransferase melatonin |
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