PUBLICATION
Chronic dietary exposure to pyrolytic and petrogenic mixtures of PAHs causes physiological disruption in zebrafish-part II: behavior
- Authors
- Vignet, C., Le Menach, K., Lyphout, L., Guionnet, T., Frère, L., Leguay, D., Budzinski, H., Cousin, X., Bégout, M.L.
- ID
- ZDB-PUB-140513-267
- Date
- 2014
- Source
- Environmental science and pollution research international 21(24): 13818-32 (Journal)
- Registered Authors
- Cousin, Xavier
- Keywords
- none
- MeSH Terms
-
- Animal Feed/analysis
- Animals
- Behavior, Animal/drug effects*
- Environmental Monitoring
- Female
- Male
- Petroleum/analysis
- Petroleum/toxicity*
- Polycyclic Aromatic Hydrocarbons/analysis
- Polycyclic Aromatic Hydrocarbons/toxicity*
- Water Pollutants, Chemical/analysis
- Water Pollutants, Chemical/toxicity*
- Zebrafish/physiology*
- PubMed
- 24671398 Full text @ Environ. Sci. Pollut. Res. Int.
Citation
Vignet, C., Le Menach, K., Lyphout, L., Guionnet, T., Frère, L., Leguay, D., Budzinski, H., Cousin, X., Bégout, M.L. (2014) Chronic dietary exposure to pyrolytic and petrogenic mixtures of PAHs causes physiological disruption in zebrafish-part II: behavior. Environmental science and pollution research international. 21(24):13818-32.
Abstract
In the last 10 years, behavior assessment has been developed as an indicator of neurotoxicity and an integrated indicator of physiological disruption. Polycyclic aromatic hydrocarbon (PAH) release into the environment has increased in recent decades resulting in high concentrations of these compounds in the sediment of contaminated areas. We evaluated the behavioral consequences of long-term chronic exposure to PAHs, by exposing zebrafish to diets spiked with three PAH fractions at environmentally relevant concentrations. Fish were exposed to these chemicals from their first meal (5 days postfertilization) until they became reproducing adults (at 6 months old). The fractions used were representative of PAHs of pyrolytic (PY) origin and of two oils differing in composition (a heavy fuel oil (HO) and a light crude oil (LO)). Several tests were carried out to evaluate circadian spontaneous swimming activity, responses to a challenge (photomotor response), exploratory tendencies, and anxiety levels. We found that dietary PAH exposure was associated with greater mobility, lower levels of exploratory activity, and higher levels of anxiety, particularly in fish exposed to the HO fraction and, to a lesser extent, the LO fraction. Finally, our results indicate that PAH mixtures of different compositions, representative of situations encountered in the wild, can induce behavioral disruptions resulting in poorer fish performance.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping