Anxiolytic effects of fluoxetine and nicotine exposure on exploratory behavior in zebrafish

Zebrafish (Danio rerio) have emerged as a popular model for studying the pharmacology and behavior of anxiety. While there have been numerous studies documenting the anxiolytic and anxiogenic effects of common drugs in zebrafish, many do not report or test for behavioral differences between the sexe...

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Main Authors: Matthew L. Singer, Kris Oreschak, Zachariah Rhinehart, Barrie D. Robison
Format: Article
Language:English
Published: PeerJ Inc. 2016-08-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/2352.pdf
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author Matthew L. Singer
Kris Oreschak
Zachariah Rhinehart
Barrie D. Robison
author_facet Matthew L. Singer
Kris Oreschak
Zachariah Rhinehart
Barrie D. Robison
author_sort Matthew L. Singer
collection DOAJ
description Zebrafish (Danio rerio) have emerged as a popular model for studying the pharmacology and behavior of anxiety. While there have been numerous studies documenting the anxiolytic and anxiogenic effects of common drugs in zebrafish, many do not report or test for behavioral differences between the sexes. Previous studies have indicated that males and females differ in their baseline level of anxiety. In this study, we test for a sex interaction with fluoxetine and nicotine. We exposed fish to system water (control), 10 mg/L fluoxetine, or 1 mg/L nicotine for three minutes prior to being subjected to four minutes in an open-field drop test. Video recordings were tracked using ProAnalyst. Fish from both drug treatments reduced swimming speed, increased vertical position, and increased use of the top half of the open field when compared with the control, though fluoxetine had a larger effect on depth related behaviors while nicotine mostly affected swimming speed. A significant sex effect was observed where females swam at a slower and more constant speed than males, however neither drug produced a sex-dependent response.
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spelling doaj.art-f6a0af96ef184ddaabe965263581890f2023-12-03T09:21:05ZengPeerJ Inc.PeerJ2167-83592016-08-014e235210.7717/peerj.2352Anxiolytic effects of fluoxetine and nicotine exposure on exploratory behavior in zebrafishMatthew L. Singer0Kris Oreschak1Zachariah Rhinehart2Barrie D. Robison3Department of Biological Sciences, University of Idaho, Moscow, ID, United StatesDepartment of Biological Sciences, University of Idaho, Moscow, ID, United StatesDepartment of Biological Sciences, University of Idaho, Moscow, ID, United StatesDepartment of Biological Sciences, University of Idaho, Moscow, ID, United StatesZebrafish (Danio rerio) have emerged as a popular model for studying the pharmacology and behavior of anxiety. While there have been numerous studies documenting the anxiolytic and anxiogenic effects of common drugs in zebrafish, many do not report or test for behavioral differences between the sexes. Previous studies have indicated that males and females differ in their baseline level of anxiety. In this study, we test for a sex interaction with fluoxetine and nicotine. We exposed fish to system water (control), 10 mg/L fluoxetine, or 1 mg/L nicotine for three minutes prior to being subjected to four minutes in an open-field drop test. Video recordings were tracked using ProAnalyst. Fish from both drug treatments reduced swimming speed, increased vertical position, and increased use of the top half of the open field when compared with the control, though fluoxetine had a larger effect on depth related behaviors while nicotine mostly affected swimming speed. A significant sex effect was observed where females swam at a slower and more constant speed than males, however neither drug produced a sex-dependent response.https://peerj.com/articles/2352.pdfBehaviorAnxietyFluoxetineNicotine
spellingShingle Matthew L. Singer
Kris Oreschak
Zachariah Rhinehart
Barrie D. Robison
Anxiolytic effects of fluoxetine and nicotine exposure on exploratory behavior in zebrafish
PeerJ
Behavior
Anxiety
Fluoxetine
Nicotine
title Anxiolytic effects of fluoxetine and nicotine exposure on exploratory behavior in zebrafish
title_full Anxiolytic effects of fluoxetine and nicotine exposure on exploratory behavior in zebrafish
title_fullStr Anxiolytic effects of fluoxetine and nicotine exposure on exploratory behavior in zebrafish
title_full_unstemmed Anxiolytic effects of fluoxetine and nicotine exposure on exploratory behavior in zebrafish
title_short Anxiolytic effects of fluoxetine and nicotine exposure on exploratory behavior in zebrafish
title_sort anxiolytic effects of fluoxetine and nicotine exposure on exploratory behavior in zebrafish
topic Behavior
Anxiety
Fluoxetine
Nicotine
url https://peerj.com/articles/2352.pdf
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