Lactation is associated with complex changes of the hypothalamo-neurohypophysial system, and oxytocin released within the hypothalamic supraoptic (SON) and paraventricular nuclei may serve as a signal of communication between the magnocellular nuclei in lactating rats. In the first study, the intranuclear and peripheral release patterns of oxytocin and vasopressin in response to intraperitoneal...

Mature oxytocin (OT) and vasopressin (AVP) magnocellular neurons of the hypothalamic supraoptic nuclei (SON) autocontrol their electrical activity via somatodendritic release of their respective peptides. Because OT and AVP are synthesized early in development and could play an important role in the maturation of these neurons, we checked whether the peptides are released within the SON and act...

The release of vasopressin and oxytocin from the supraoptic nucleus (SON) neurons is tonically regulated by excitatory glutamatergic and inhibitory GABAergic synaptic inputs. Acetylcholine is known to excite SON neurons and to elicit vasopressin release. Cholinergic receptors are located pre- and postsynaptically in the SON, but their functional significance in the regulation of SON neurons is ...

Dans cette perspective, et dans le but de développer des outils et des ressources linguistiques, nous avons entrepris de construire un module NooJ pour la langue amazighe standard (Ameur et al., 2004). Le présent article propose une formalisation de la catégorie nom permettant de générer à partir d’une entrée lexicale son genre (masculin, féminin), son nombre (singulier, pluriel), et son état (...

birth of the son whose case is described below. Dimness of sight then came on, and gradually progressed to complete blindness without any redness, pain or lachrymation. An examination of the eyes gave the following results (28th April 1897) :? Right eye: The iris is divided completely into two portions (Fig. 1) by two large broad colobomata, one of which extends downwards and outwards, the othe...