PMID: 6537965Feb 1, 1984Paper

Localization of central nervous system structures mediating extracellular thirst in the female rat

The Journal of Endocrinology
J Kucharczyk

Abstract

Water intake elicited by microinjection of the hormone angiotensin-II into the preoptic region of cyclic female rats was significantly less on days of vaginal oestrus than at dioestrus or metoestrus, whereas the drinking of 2.7% NaCl solution, to which rats also had access, did not vary with the cycle. Administration of the same dose of angiotensin-II to the subfornical organ and the lateral cerebral ventricles induced drinking at all stages of the oestrous cycle, but the volumes of water or 2.7% NaCl ingested did not vary with the cycle. Water intake after subcutaneous injection of isoprenaline, a beta-adrenergic agonist which causes increased angiotensin biosynthesis, varied cyclically with the stage of the oestrous cycle. On the other hand, water and 2.7% NaCl intakes induced by intraperitoneal injection of hypertonic NaCl (a cellular stimulus of thirst) or by 24-h water deprivation (which dehydrates both the extracellular and cellular body fluid compartments) did not differ significantly at the various stages of the oestrous cycle. The finding that fluctuations in angiotensin- and isoprenaline-induced water intake parallel the changes in spontaneous 24-h drinking suggests that the preoptic region may play an important role ...Continue Reading

Citations

Feb 1, 1984·Brain Research Bulletin·J Kucharczyk
Jul 2, 2003·Physiology & Behavior·Eric G KrauseRobert J Contreras
Jun 6, 2003·Brain Research Bulletin·Terence V Sewards, Mark A Sewards
Jun 20, 2001·Journal of Neuroendocrinology·K OnoK Inenaga
Mar 10, 2009·Physiology & Behavior·Kathleen S Curtis
Jun 4, 2015·Physiology & Behavior·Jessica Santollo, Derek Daniels
Mar 20, 2015·Frontiers in Systems Neuroscience·Jessica Santollo, Derek Daniels
Jan 11, 2001·Consciousness and Cognition·T V Sewards, M A Sewards
Mar 1, 1995·Anatomia, histologia, embryologia·A Smollich, J Grossmann
Jan 14, 1999·The American Journal of Physiology·L R KisleyS J Fluharty

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