IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Print this page

Cadmium exposure exerts neurotoxic effects in peacock blennies Salaria pavo
Naïja, A.; Kestemont, P.; Chenais, B.; Haouas, Z.; Blust, R.; Helal, A.N.; Marchand, J. (2017). Cadmium exposure exerts neurotoxic effects in peacock blennies Salaria pavo. Ecotoxicol. Environ. Saf. 143: 217-227. https://hdl.handle.net/10.1016/j.ecoenv.2017.05.041
In: Ecotoxicology and Environmental Safety. Academic Press/Elsevier: Amsterdam, Netherlands etc. ISSN 0147-6513; e-ISSN 1090-2414, more
Peer reviewed article  

Available in  Authors 

Keywords
    Salaria pavo (Risso, 1810) [WoRMS]
    Marine
Author keywords
    CdCl2; Salaria pavo; mRNA expression; Histology; ABC transporters; AChE

Authors  Top 
  • Naïja, A.
  • Kestemont, P., more
  • Chenais, B.
  • Haouas, Z.
  • Blust, R., more
  • Helal, A.N.
  • Marchand, J.

Abstract
    Cadmium (Cd) is considered as an important factor involved in several neurological disturbances. The aim of this study was to assess the effects of Cd in the brain of peacock blennies Salaria pavo, a species used as a bioindicator of water pollution. A sublethal contamination of 2 mg CdCl2 L−1 was performed over periods of 1, 4, 10 and 15 days. Total Cd accumulation was measured in brains and displayed low concentrations throughout the experiment. Partial-length cDNA of different ATP-binding cassette transporters (abcb1, abcc1, abcc2, abcg2 proteins) and acetylcholinesterase (ache) were characterized. mRNA expressions profiles displayed an up-regulation of abcc2 mRNA after 4 days of Cd exposure only while abcg2 mRNA was down-regulated after 10 days only. For AChE, the mRNA transcription and the activity of the enzyme were followed and highlighted that Cd exerted an inhibitory effect on the nervous information transmission. At the histological level, fish exhibited pathological symptoms in the optic tectum and the cerebellum and results showed that the cerebellum was the most affected organ.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors