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Horm Behav


Title:Methyl-testosterone induces male-typical ventilatory behavior in response to putative steroidal pheromones in female round gobies (Neogobius melanostomus)
Author(s):Murphy CA; Stacey NE;
Address:"Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada T6G 2E9. cmurph4@lsu.edu"
Journal Title:Horm Behav
Year:2002
Volume:42
Issue:2
Page Number:109 - 115
DOI: 10.1006/hbeh.2002.1810
ISSN/ISBN:0018-506X (Print) 0018-506X (Linking)
Abstract:"Male round gobies (Neogobius melanostomus) transiently increase their rate of ventilation when exposed to nanomolar concentrations of three putative steroidal pheromones (etiocholanolone, ETIO; estrone, E1; estradiol-glucuronide, E2-3g), whereas females exhibit this response only to ETIO. In this study we implanted females with Silastic capsules that were empty (Blank) or filled with methyl-testosterone (MT) to determine whether androgen induces a male-typical pattern of ventilatory response. As with untreated females in our previous studies, Blank females increased ventilation only in response to ETIO. In contrast, MT females tested 2-3 weeks postimplant responded not only to ETIO, but also to E1 and E2-3g. These results provide the first demonstration of an androgen inducing a male-typical behavioral response to a steroidal pheromone in adult female fish. Together with our previous findings of sexually isomorphic sensory responses to steroid odorants, the present results also suggest that a central action of androgen is responsible for sexually dimorphic behavioral responses to putative pheromonal steroids in Neogobius"
Keywords:"Animals Drug Implants Female Male Methyltestosterone/administration & dosage/*pharmacology Pheromones/*physiology Respiration/*drug effects *Respiratory Physiological Phenomena *Sex Characteristics Sexual Behavior, Animal/*drug effects/*physiology Testost;"
Notes:"MedlineMurphy, Cheryl A Stacey, Norm E eng Research Support, Non-U.S. Gov't 2002/10/09 Horm Behav. 2002 Sep; 42(2):109-15. doi: 10.1006/hbeh.2002.1810"

 
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