抄録
Plasma lipid profiles in the winter were studied in 128 male subjects. They were Japanese sub jects born on the main island, those born on Hokkaido, and Ainu.
Appreciable differences were not detected among these three groups in the concentrations of total lipids, triglycerides, phospholipids, total and free cholesterol, and esterifled fatty acids in the plasma, although average values of total cholesterol and phospholipids were considerably low, as compared with values reported by American or European investigators.
Highly significant differences were observed in the plasma levels of FFA; the lowest values were obtained in the Ainu who were considered to be well adapted to cold, while the highest in sub jects born on the main island and not adapted to cold.
The results suggest that FFA mobilization is related in some way to the thermoregulation in the cold and the development of cold acclimatization.
