Organohalogenated contaminants in white-tailed eagle (Haliaeetus albicilla) nestlings: An assessment of relationships to immunoglobulin levels, telomeres and oxidative stress

International audience Biomagnifying organohalogenated compounds (OHCs)may have adverse effects on the health of birds, especiallymarine avian top predators that accumulate high OHC loads. Contaminants may impair the humoral immunityand also influence the antioxidant enzyme activity (i.e. oxidative...

Full description

Bibliographic Details
Published in:Science of The Total Environment
Main Authors: Sletten, Silja, Bourgeon, Sophie, Bårdsen, Bård-Jørgen, Herzke, Dorte, Criscuolo, François, Massemin, Sylvie, Zahn, Sandrine, Johnsen, Trond Vidar, Bustnes, Jan Ove
Other Authors: Norwegian Institute for Nature Research (NINA), Norwegian Polar Institute, Norwegian Institute for Air Research (NILU), Département Ecologie, Physiologie et Ethologie (DEPE-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2016
Subjects:
Perfluoroalkyl substances
White-tailed eagle
Plasma immunoglobulin Y
Organochlorines
Oxidative stress
Telomeres
[SDE]Environmental Sciences
Arctic
Haliaeetus albicilla
Online Access:https://hal.science/hal-01205284
https://doi.org/10.1016/j.scitotenv.2015.08.123
Description
Summary:International audience Biomagnifying organohalogenated compounds (OHCs)may have adverse effects on the health of birds, especiallymarine avian top predators that accumulate high OHC loads. Contaminants may impair the humoral immunityand also influence the antioxidant enzyme activity (i.e. oxidative stress). Moreover, physical conditions andoxidative stress during development may reduce telomere lengths, one of the main mechanisms explainingcell senescence. To examine the potential effects of environmental contaminants on physiological biomarkersof health, OHCs with different ‘physicochemical’ properties were related to immunoglobulin Y levels (IgY; humoralimmunity), superoxide dismutase enzyme(SOD) activity in blood plasma, and telomere length (measuredin red blood cells) in individual 7–8 weeks old nestlings (n = 35) of white-tailed eagles (Haliaeetus albicilla) inthe Norwegian Sub-Arctic. Different organochlorines (OCs) and perfluoroalkylated substances (PFASs) weremeasured in blood plasma of nestlings, demonstrating higher concentrations of the emerging contaminants(PFASs), notably perfluorooctane sulfonate (PFOS), compared to legacy OCs. There were no relationshipsbetween the contaminant loads and plasma IgY levels. Moreover, differences between years were found fortelomere lengths, but this was not related to contaminants and more likely a result of different developmental

Similar Items