PMID- 10074781 OWN - NLM STAT- MEDLINE DCOM- 19990329 LR - 20190905 IS - 0079-6123 (Print) IS - 0079-6123 (Linking) VI - 119 DP - 1998 TI - Osmoregulation of vasopressin neurons: a synergy of intrinsic and synaptic processes. PG - 59-76 AB - The release of vasopressin into the general circulation varies as a function of plasma osmolality and therefore plays a major role in systemic osmoregulation. In vivo, the secretion of this hormone in the neurohypophysis is primarily determined by the rate of action potential discharge of the magnocellular neurosecretory cells (MNCs) in the hypothalamus. Experiments done over the past 20 years have clarified much of the neurophysiological basis underlying this important osmoregulatory reflex. As discussed here, recent findings indicate that the regulation of the firing rate of MNCs during changes in systemic osmolality involves the concerted modulation of mechanosensitive ion channels in MNCs, as well as excitatory glutamatergic inputs derived from forebrain regions such as the organum vasculosum of the lamina terminalis. FAU - Bourque, C W AU - Bourque CW AD - Centre for Research in Neuroscience, Montreal General Hospital, QC, Canada. LA - eng PT - Journal Article PT - Review PL - Netherlands TA - Prog Brain Res JT - Progress in brain research JID - 0376441 RN - 11000-17-2 (Vasopressins) SB - IM MH - Action Potentials/physiology MH - Animals MH - Mammals MH - Neurons/*physiology MH - Synapses/*physiology MH - Vasopressins/*physiology MH - Water-Electrolyte Balance/*physiology RF - 120 EDAT- 1999/03/13 00:00 MHDA- 1999/03/13 00:01 CRDT- 1999/03/13 00:00 PHST- 1999/03/13 00:00 [pubmed] PHST- 1999/03/13 00:01 [medline] PHST- 1999/03/13 00:00 [entrez] AID - S0079-6123(08)61562-9 [pii] AID - 10.1016/s0079-6123(08)61562-9 [doi] PST - ppublish SO - Prog Brain Res. 1998;119:59-76. doi: 10.1016/s0079-6123(08)61562-9.