... on data about entrainment of the locomotor activity rhythm by melatonin. The present study was undertaken to check whether melatonin may phase-shift also other circadian rhythms, namely the rhythm in pineal N-acetyltransferase activity which is supposed to drive the rhythmic melatonin production...

... in melatonin excretion that were entrained to the light cycle. Animals killed at the time of day coinciding with diminished melatonin excretion had lower pineal and serum melatonin levels (0.2 ± 0.1 ng/pineal; 30 ± 8 pg/ml serum) than those killed 12 h later (2.0 ± 0.4 ng/pineal; 57 ± 20 pg/ml serum...

... Entrainment Neuroendocrinology 56:385-391 (1983) © 1983 S. Karger AG, Basel 0028-3835/83/0365-0385 S 2.75/0 Melatonin Accelerates the Reentrainment of the Circadian Adrenocortical Rhythm in Inverted Illumination Cycle Noboru M urakami\ Chieko Hayafuji\ Yukiko Sasaki\ Jun Yamazakih, Kiyobisa Takahashi...

... advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Corticosterone rhythm Entrainment Castration...