Abstract
The electrical activity of several hypothalamic sites, before and following cervical stimulation, was examined in an attempt to evaluate the central nervous system processes involved in the induction of pseudopregnancy in the rat. Cervical stimulation, resulting in pseudopregnancy, induced a sequence of neuronal changes at: 3.8, 4.4, 11.6, 20.1, 30.8, 44.5, 51.2, 51.7, 62.4, 85.1 and 111.5 min after stimulation in the preoptic area, lateral hypothalamus, ventromedial hypothalamus, preoptic area, suprachiasmatic nucleus, lateral hypothalamus, preoptic area, ventromedial hypothalamus, lateral hypothalamus and anterior hypothalamus, respectively. These results suggest that the preoptic region contains both the facilitatory neuronal mechanism and also an inhibitory system. The latter could tonically inhibit the expression of the nocturnal prolactin surge. We conclude that the sequence of neuronal events observed in various hypothalamic areas is in part responsible for the process which results in pseudopregnancy.
Citations
Dec 28, 2012·Journal of Neural Transmission·Bin Tang, Nachum Dafny
Dec 1, 1994·Neuropharmacology·C Reyes-VázquezN Dafny
Jan 1, 1993·Brain Research Bulletin·M S Erskine
May 9, 2000·Brain Research·A Kato, Y Sakuma
Nov 25, 1996·Brain Research·J G PfausH Abillamaa
Jan 1, 1997·Brain Research Bulletin·J G Pfaus, M M Heeb
May 1, 1995·Journal of Neuroendocrinology·A E HerbisonS Dye
Feb 10, 2006·American Journal of Physiology. Endocrinology and Metabolism·Richard BertramMarc E Freeman
Nov 20, 2013·Journal of Neural Transmission·Zachary Jones, Nachum Dafny
Sep 22, 2012·European Journal of Pharmacology·Bin Tang, Nachum Dafny
May 10, 2011·European Journal of Pharmacology·Pamela B YangNachum Dafny
Apr 15, 2008·Neuroscience·J G Oberlander, M S Erskine
May 18, 2007·Developmental Neurobiology·Jasmine J YangMary S Erskine
Jul 22, 2004·Behavioural Brain Research·Mary S ErskineEva K Polston
Sep 3, 1993·Brain Research·D W Rowe, M S Erskine
Jul 28, 2013·Brain Research Bulletin·Bin Tang, Nachum Dafny
Feb 19, 2014·Physiology & Behavior·Catherine M ClaussenNachum Dafny
Nov 2, 2011·Brain Research Bulletin·Catherine Claussen, Nachum Dafny
Jan 18, 2012·Brain Research Bulletin·Samuel L ChongNachum Dafny
Feb 7, 2012·European Journal of Pharmacology·R Layla SalekNachum Dafny
Jun 24, 2015·Pharmacology, Biochemistry, and Behavior·Catherine M Claussen, Nachum Dafny
Aug 12, 2009·Hormones and Behavior·Michaela GeorgescuJames G Pfaus
Jun 16, 2017·Journal of Neurophysiology·Tahseen J KarimNachum Dafny
Nov 18, 2016·Journal of Neural Transmission·Sidish VenkataramanNachum Dafny