若年女性の隠れ肥満を形成する食行動と遺伝的要因の検討

抄録

  This research studied the eating behavior and genetic factors that cause masked obesity, in which body fat percentage is high even though the body weight is low or normal, a phenomenon that is increasing among young Japanese women. This study performed physical measurement, an eating-behavior survey based on EAT-26, and a genetic polymorphism test that used the non-invasive collection of fingernail clippings on 94 young women. The result showed that 13. 8% of the women have masked obesity, while 39. 4% have masked obesity tendency, and the total of both groups equaled more than half the total number (53. 2%). When the masked obesity group is compared to the standard group, no difference can be seen in the frequency of appearance of β3-adrenergic receptor (β3AR) genetic polymorphism (Trp64Arg) and insulin-induced gene 2 (INSIG2) genetic polymorphism (rs7566605), but there is a significantly higher rating in EAT-26. These results suggest the possibility that unique eating behavior habits of young women are largely involved in causing masked obesity in this population.