Circadian rhythms in mice fed a single daily meal at different stages of lighting regimen.

摘要: Circadian rhythms in systemic and cellular variables were studied three groups of mice on different schedules daily food accessibility: (1) only during the first 4 hours 12-hour light span; (2) dark (3) at all times. The amplitudes circadian variation rectal temperature, serum corticosterone, liver glycogen increased by "meal-feeding" either early or darkness. overall averages corticosterone also meal-feeding stage lighting regimen. time peak values determined presentation, regardless its relation to On other hand, interval between presentation corneal mitotic index was greater when feeding restricted These differences among animals resulted relations varibles any given after onset. Such effects concerning total bodily function, energy storage, hormonal regulation, basic processes indicate pertinence meal timing nutritional research practice.