著作: [松崎 利也]/MUNKHSAIKHAN MUNKHZAYA/ALTANKHUU TUNGALAGSUVD/馬依拉 伊利亜斯/[岩佐 武]/[矢野 清人]/Yanagihara Rie/德井 貴子/[加藤 剛志]/[桑原 章]/[松井 寿美佳]/[苛原 稔]/Prenatal undernutrition disrupted the sexual maturation, but not the sexual behavior, in male rats./[Reproductive Medicine and Biology]
(英) Prenatal undernutrition disrupted the sexual maturation, but not the sexual behavior, in male rats.
(英) Exposure to various stressors, including psychological, metabolic, and immune, in the perinatal period induces long-lasting effects in physiological function and increase the risk of metabolic disorders in later life. In the present study, sexual maturation and sexual behavior were assessed in prenatally undernourished mature male rats. All the pregnant rats were divided into the maternal normal nutrition (mNN) group and the maternal undernutrition (mUN) group. The mUN mothers received 50% of the amount of the daily food intake of the mNN mothers. Preputial separation and sexual behavior were observed in randomly selected pups of the mNN and mUN groups. The body weight of the mothers was significantly lighter in the mUN group than in the mNN group. Similarly, the pups in the mUN group showed a significantly lower body weight than those in the mNN group from postnatal day (PND) 1 to PND 15. The preputial separation day was significantly delayed in the mUN group, compared to the mNN group. Sexual behavior did not show any significant difference between the two groups. These findings indicated that prenatal undernutrition delayed sexual maturation, but did not suppress sexual behavior, in mature male rats.
Reproductive Medicine and Biology(日本生殖医学会/日本アンドロロジー学会/日本受精着床学会)
|年月日||必須||2017年 9月 16日|