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Biol Res

Title:		Discrimination of bile acids by the rainbow trout olfactory system: evidence as potential pheromone
Author(s):		Giaquinto PC; Hara TJ;
Address:		"Physiology Department, Biological Institute, Universidade Estadual Paulista, Botucatu, Sao Paulo, Brazil. perciliag@gmail.com"
Journal Title:		Biol Res
Year:		2008
Volume:		20080821
Issue:		1
Page Number:		33 - 42
DOI:
ISSN/ISBN:		0717-6287 (Electronic) 0716-9760 (Linking)
Abstract:		"Electro-olfactogram recording was used to determine whether the olfactory epithelium of adult rainbow trout is specifically sensitive to bile acids, some of which have been hypothesized to function as pheromones. Of 38 bile acids that had been pre-screened for olfactory activity, 6 were selected. The rainbow trout-specific bile acids, taurocholic acid (TCA), and taurolithocholic acid 3-sulfate (TLS) were the most potent compounds tested. TLS had a distinctive dose-response curve. Cross-adaptation experiments demonstrated that sensitivity to bile acids is attributable to at least 3 independent classes of olfactory receptor sites. Our data suggest that bile acids are discriminated by olfaction in rainbow trout, supporting the possibility that these compounds function as pheromones"
Keywords:		"Adaptation, Physiological/physiology Animals *Bile Acids and Salts Electrophysiology Olfactory Mucosa/*physiology Oncorhynchus mykiss/*physiology *Pheromones Smell/*physiology;"
Notes:		"MedlineGiaquinto, Percilia C Hara, Toshiaki J eng Research Support, Non-U.S. Gov't England 2008/09/05 Biol Res. 2008; 41(1):33-42. Epub 2008 Aug 21"