Document Detail


Chronic exposure to fluoxetine (Prozac) causes developmental delays in Rana pipiens larvae.
MedLine Citation:
PMID:  20836066     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Selective serotonin reuptake inhibitors (SSRIs), such as fluoxetine, are among the many pharmaceuticals detected in aquatic ecosystems. Although the acute effects of SSRIs on select organisms have been reported, little is understood about the chronic effects of these drugs on amphibians, which are particularly sensitive to environmental pollutants. Serotonin plays important roles in many physiological functions, including a wide array of developmental processes. Exposure to SSRIs during development may cause developmental complications in a variety of organisms, but little is known about the degree of exposure necessary to cause deleterious effects. Here, we sought to gain a better understanding of the effects of SSRIs on amphibian development by use of a combined laboratory and outdoor mesocosm study. Tadpoles in a laboratory setting were exposed to a low (0.029 µg/L) and a high (0.29 µg/L) concentration of the common SSRI fluoxetine from stages 21 and 22 through completion of metamorphosis. Tadpoles in outdoor mesocosms were exposed to fluoxetine concentrations ranging from 0.1 to 0.3 µg/L. Exposed tadpoles in the laboratory showed delayed development compared with controls when stage was assessed throughout the experiment. Control tadpoles also gained weight faster than treatment tadpoles, which may be explained by reduced food intake. Mesocosm tadpoles exhibited similar trends, but no significant differences were detected. These results indicate that ecologically relevant levels of fluoxetine may cause developmental delays in amphibians.
Authors:
Hannah R Foster; G Allen Burton; Niladri Basu; Earl E Werner
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-10-15
Journal Detail:
Title:  Environmental toxicology and chemistry / SETAC     Volume:  29     ISSN:  1552-8618     ISO Abbreviation:  Environ. Toxicol. Chem.     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8308958     Medline TA:  Environ Toxicol Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2845-50     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 SETAC.
Affiliation:
Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan 48109, USA. fosterh@umich.edu
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