Antitumor effect through a cell-cycle-specific mechanism by delaying the entry of cells into mitosis.

Nocturnal melatonin levels were significantly reduced by exposure to this weak alternating MF.

Melatonin(0,3nM)inhibited MCF7 cell growth, effect of melatonin was reduced by the co-administration of 5-FU.

No abstract available.

Exposure to extremely low-frequency electromagnetic fields reduces the production of melatonin.

Melatonin(10(-9)M) may inhibit the action and/or release of growth stimulatory factors as well as stimulate the release of growth inhibitory factors.

Antiproliferative effect was obtained by sequential exposure to 10(-9) M/10(-11)M 12/12h melatonin, which mimics the physiological rhythm of serum melatonin concentration.

Plasma melatonin concentrations in tumor-bearing rats killed at 3.00 h were suppressed by 35% when compared to the control animals killed at the same time.

Antiproliferative actions of Mlt are mediated through the suppression of the transcription of ER gene.

Mindfulness meditation is associated with increased physiological levels of melatonin.