… The aim of this study was to establish an action spectrum for light-induced melatonin
suppression that could help elucidate the ocular photoreceptor system for regulating the human …

Over the past few years, we have shown that the surge of melatonin in the circulation during
darkness represents a potent oncostatic signal to tissue-isolated rat hepatoma 7288CTC, …

… exposure may be a risk factor for cancer is suggested by the suppressive effects of nocturnal
light on pineal melatonin [3,4] and the decrease in melatonin production that has been …

… blue LED light would have increased efficacy for melatonin suppression compared with the
… K white fluorescent light. To accomplish these aims, a within-subject study tested melatonin …

… nm monochromatic light of equal photon density. Similarly, 460 nm monochromatic light
causes twice the amount of melatonin suppression compared to 555 nm monochromatic light, …

… light/dark cycle entrains circadian melatonin production to a 24-hour cycle, whereas ocular
exposure to light during darkness rapidly suppresses melatonin … of the light exposure (20, 21). …

… SCN cell sensitivity to light stimuli, relative to various adaptive lighting conditions. These …
light adaptation will dampen the subsequent suppression of melatonin by monochromatic light …

… light-induced suppression of melatonin overnight. We show that phase resetting and melatonin
… h) exposure to light but that, at the start of a light exposure, melatonin suppression is best …

… light-induced suppression of melatonin. The aim of this study was to compare changes in
plasma melatonin levels when light … were exposed to patternless white light for 90 min between …

… In turn, the SCN transmit information about lighting and circadian time … melatonin is synthesized
8. As a result, daily patterns of light exposure entrain the circadian secretion of melatonin…