Chronic hypernatremia activates the central osmoregulatory mechanisms and inhibits the function of the hypothalamic-pituitary-adrenal (HPA) axis. Noradrenaline (NE) release into the periventricular anteroventral third ventricle region (AV3V), the supraoptic (SON) and hypothalamic paraventricular
Experiments were done in conscious rats to investigate the effect of intravenous infusion of hypertonic saline on the induction of the phosphoprotein Fos in brainstem catecholaminergic neurons. Fos induction, detected immunohistochemically, was used as a marker for neuronal activation. Infusions of
We describe an infant with nephrogenic diabetes insipidus (NDI) with a novel mutation in the arginine vasopressin receptor 2 (AVPR2) gene. A 1-month-old infant showed failure to thrive and hypernatremia. The water deprivation test revealed elevated serum osmolality and low urine osmolality. The
The intention of this review is to emphasize the current knowledge about the extent and importance of the substances co-localized with magnocellular arginine vasopressin (AVP) and oxytocin (OXY) as potential candidates for the gradual clarification of their actual role in the regulation of
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