Seasonal variations in photoperiod affect hepatic metabolism of medaka (Oryzias latipes).

ABSTRACT: Organisms living in temperate regions are sensitive to seasonal variations in the environment; they are known to accumulate energy as fat in their livers during the winter when days are shorter, temperatures are lower, and food is scarce. However, the effect of variations in photoperiod alone on hepatic lipid metabolism has not been well studied. Therefore, in this study, we analyzed lipid metabolism in the liver of medaka, Oryzias latipes, while varying the length of days at constant temperature. Larger amounts of fatty acids accumulated in the liver after 14 days under short-day conditions than under long-day conditions. Metabolome analysis showed no accumulation of long-chain unsaturated fatty acids, but showed a significant accumulation of long-chain saturated fatty acids. Short-day co

SUBMITTER: Fujisawa K 

PROVIDER: S-EPMC8016123 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature