Negative correlation of age and the leve
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Pang, S. F. ;Tang, F. ;Tang, P. L.
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Article
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1984
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John Wiley and Sons
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English
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Pineal concentrations of N-acetylserotonin and melatonin and serum levels of melatonin were studied in 3-wk-old (prepubertal), 8-wk-old (adult), and 17-mo-old (senile) male rats. They were adapted to a photoperiod of 12 h light112 h darkness for a minimum of 1 wk and killed at mid-light and mid-dark