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Front Neurosci

Title:		Electrophysiological characterization of male goldfish (Carassius auratus) ventral preoptic area neurons receiving olfactory inputs
Author(s):		Lado WE; Spanswick DC; Lewis JE; Trudeau VL;
Address:		"Department of Biology, University of Ottawa Ottawa, ON, Canada ; Department of Cell and Systems Biology, University of Toronto Toronto, ON, Canada. Warwick Medical School, University of Warwick Coventry, UK ; Department of Physiology, Monash University Clayton, VIC, Australia. Department of Biology, University of Ottawa Ottawa, ON, Canada"
Journal Title:		Front Neurosci
Year:		2014
Volume:		20140630
Issue:
Page Number:		185 -
DOI:		10.3389/fnins.2014.00185
ISSN/ISBN:		1662-4548 (Print) 1662-453X (Electronic) 1662-453X (Linking)
Abstract:		"Chemical communication via sex pheromones is critical for successful reproduction but the underlying neural mechanisms are not well-understood. The goldfish is a tractable model because sex pheromones have been well-characterized in this species. We used male goldfish forebrain explants in vitro and performed whole-cell current clamp recordings from single neurons in the ventral preoptic area (vPOA) to characterize their membrane properties and synaptic inputs from the olfactory bulbs (OB). Principle component and cluster analyses based on intrinsic membrane properties of vPOA neurons (N = 107) revealed five (I-V) distinct cell groups. These cells displayed differences in their input resistance (Rinput: I < II < IV < III = V), time constant (TC: I = II < IV < III = V), and threshold current (Ithreshold: I > II = IV > III = V). Evidence from electrical stimulation of the OB and application of receptor antagonists suggests that vPOA neurons receive monosynaptic glutamatergic inputs via the medial olfactory tract, with connectivity varying among neuronal groups [I (24%), II (40%), III (0%), IV (34%), and V (2%)]"
Keywords:		male goldfish monosynaptic glutamatergic projections ventral preoptic area;
Notes:		"PubMed-not-MEDLINELado, Wudu E Spanswick, David C Lewis, John E Trudeau, Vance L eng Switzerland 2014/07/30 Front Neurosci. 2014 Jun 30; 8:185. doi: 10.3389/fnins.2014.00185. eCollection 2014"