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Low concentrations, potential ecological consequences: Synthetic estrogens alter life-history and demographic structures of aquatic invertebrates

Souza, Maria Sol; Hallgren, Per LU ; Balseiro, Esteban and Hansson, Lars-Anders LU (2013) In Environmental Pollution 178. p.237-243
Abstract
Contraceptive drugs are nowadays found in aquatic environments around the globe. Particularly, 17 alpha-ethinylestradiol (EE2) may act even at low concentrations, such as those recorded in natural ecosystems. We evaluated the physiological effects of EE2 on cyclopoids and calanoids, common copepods in both marine and freshwater communities. We used three EE2 concentrations and assessed its impact on activity of different physiological endpoints: Acetylcholinesterase (neurotransmission), Glutathione S-transferase (detoxifying system), and Caspase-3 (apoptosis). While EE2 exerts, distinctive effect on detoxifying and apoptotic systems, no effect on AChE was observed at environmental doses. Our results show that EE2 exposure affects... (More)
Contraceptive drugs are nowadays found in aquatic environments around the globe. Particularly, 17 alpha-ethinylestradiol (EE2) may act even at low concentrations, such as those recorded in natural ecosystems. We evaluated the physiological effects of EE2 on cyclopoids and calanoids, common copepods in both marine and freshwater communities. We used three EE2 concentrations and assessed its impact on activity of different physiological endpoints: Acetylcholinesterase (neurotransmission), Glutathione S-transferase (detoxifying system), and Caspase-3 (apoptosis). While EE2 exerts, distinctive effect on detoxifying and apoptotic systems, no effect on AChE was observed at environmental doses. Our results show that EE2 exposure affects differently copepod physiology endpoints, altering moulting process, adult recruitment in calanoids and calanoid to cyclopoid ratio. The ecological consequences of this underlying physiological process may affect since life history to population and community structures, and this represent a new aspects of this xenobiotic in natural systems. (C) 2013 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Aquatic systems, Caspase-3, Copepods, Estrogens, Glutathione, S-transferase
in
Environmental Pollution
volume
178
pages
237 - 243
publisher
Elsevier
external identifiers
  • wos:000320487700032
  • scopus:84876204428
ISSN
0269-7491
DOI
10.1016/j.envpol.2013.03.038
language
English
LU publication?
yes
id
90154388-bcbd-43c6-aaad-79bd4cbd34b3 (old id 3975920)
date added to LUP
2013-08-22 15:50:44
date last changed
2019-05-14 02:42:53
@article{90154388-bcbd-43c6-aaad-79bd4cbd34b3,
  abstract     = {Contraceptive drugs are nowadays found in aquatic environments around the globe. Particularly, 17 alpha-ethinylestradiol (EE2) may act even at low concentrations, such as those recorded in natural ecosystems. We evaluated the physiological effects of EE2 on cyclopoids and calanoids, common copepods in both marine and freshwater communities. We used three EE2 concentrations and assessed its impact on activity of different physiological endpoints: Acetylcholinesterase (neurotransmission), Glutathione S-transferase (detoxifying system), and Caspase-3 (apoptosis). While EE2 exerts, distinctive effect on detoxifying and apoptotic systems, no effect on AChE was observed at environmental doses. Our results show that EE2 exposure affects differently copepod physiology endpoints, altering moulting process, adult recruitment in calanoids and calanoid to cyclopoid ratio. The ecological consequences of this underlying physiological process may affect since life history to population and community structures, and this represent a new aspects of this xenobiotic in natural systems. (C) 2013 Elsevier Ltd. All rights reserved.},
  author       = {Souza, Maria Sol and Hallgren, Per and Balseiro, Esteban and Hansson, Lars-Anders},
  issn         = {0269-7491},
  keyword      = {Aquatic systems,Caspase-3,Copepods,Estrogens,Glutathione,S-transferase},
  language     = {eng},
  pages        = {237--243},
  publisher    = {Elsevier},
  series       = {Environmental Pollution},
  title        = {Low concentrations, potential ecological consequences: Synthetic estrogens alter life-history and demographic structures of aquatic invertebrates},
  url          = {http://dx.doi.org/10.1016/j.envpol.2013.03.038},
  volume       = {178},
  year         = {2013},
}