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Pregnancy and parturition are accompanied by unique behavioral changes. Only some of the neural mechanisms behind the dramatic changes in behavior are understood. Estrogen's action within the medial preoptic nucleus (MPN) is necessary for the induction of maternal behavior around the time of parturition, and estrogen acts within the ventromedial nucleus (VMN) to trigger postpartum sexual receptivity...
Estrogen's action in specific brain regions, particularly the medial preoptic nucleus (MPN), is necessary for the onset of matemal behavior in the pregnant female rat. There is an increase in estrogen binding in the MPN during pregnancy, and it has been hypothesized that this increase is part of the mechanism by which the brain is readied to support estrogen-dependent maternal behavior. This experiment...
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