استرس در دوران بارداری به شکل ناهمسانی بر عادت واکنش های کورتیکوسترون به استرس مکرر در موش نر و ماده تاثیر می گذارد
|کد مقاله||سال انتشار||مقاله انگلیسی||ترجمه فارسی||تعداد کلمات|
|75492||2005||9 صفحه PDF||سفارش دهید||6310 کلمه|
Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : Hormones and Behavior, Volume 47, Issue 4, April 2005, Pages 430–438
Environmental factors operating early in life have long-lasting and important consequences for the mental and physical health of the adult organism. In particular, prenatal exposure to stress represents one category of adverse early environmental events that are associated with development of depression and schizophrenia in adulthood. In the present studies, we examined whether prenatal stress alters the habituation of hypothalamic–pituitary–adrenal (HPA) activity that occurs with repeated stress exposure in adulthood. We compared corticosterone responses to the first vs. the eighth restraint, with lower responses to the eighth vs. the first considered evidence of habituation. In males, prenatal stress prevented the habituation of corticosterone responses to repeated restraint that was observed in non-prenatally stressed rats. Limited evidence of habituation was seen in either group of females and prenatally stressed females did not exhibit the enhanced corticosterone response during recovery from the eighth restraint that was seen in non-prenatally stressed females. Together, these results suggest a sex-specific interaction between prenatal stress and adult chronic stress on HPA activity.