Acute exposure to 17-α-ethinylestradiol disrupt the embryonic development and oxidative status of Danio rerio
Copyright © 2021 Elsevier Inc. All rights reserved..
17-Alpha-ethinylestradiol (EE2) is an estrogen derived from estradiol (E2). This compound and is one of the most widely used drugs both in humans and animals. Numerous studies have reported the ability of EE2 to alter sex determination and delay sexual maturity, but there are toxic effects that need to be explored. In this work, we analyzed the effect of EE2 on embryonic development and oxidative stress biomarkers in Danio rerio. For this effect, zebrafish embryos in the blastula period (2.5 h post fecundation) were exposed to different concentrations of EE2 (36-106 ng L-1) until 96 hpf. Survival, alterations to embryonic development, and teratogenic effects were evaluated using a stereomicroscope. Furthermore, oxidative stress biomarkers: superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX) activities, lipid peroxidation (LPX), hydroperoxide content (HPX), and protein carbonyl content (POX) were evaluated at 72 and 96 hpf using spectrophotometric methods. LC50 and EC50 of malformations got values of 82 ng L-1 and 57.7 ng L-1, respectively. The main teratogenic effects found were: chorda malformation, body malformation, and developmental delay. These alterations occurred at 86, 96, and 106 ng L-1. Integrated biomarker index showed that the oxidative stress biomarkers that had the most influence on embryos were SOD, CAT, GPX, and LPX. Overall, our results allow us to conclude that low concentrations of EE2 may potentially alter the development and oxidative status in the early life stages of zebrafish. Therefore, this bio-active estrogen can be considered a hazardous substance for fish.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:251 |
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| Enthalten in: |
Comparative biochemistry and physiology. Toxicology & pharmacology : CBP - 251(2022) vom: 01. Jan., Seite 109199 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ramírez-Montero, María Del Carmen [VerfasserIn] |
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| Links: |
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| Themen: |
423D2T571U |
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| Anmerkungen: |
Date Completed 14.02.2022 Date Revised 14.02.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.cbpc.2021.109199 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a 17-Alpha-ethinylestradiol (EE2) is an estrogen derived from estradiol (E2). This compound and is one of the most widely used drugs both in humans and animals. Numerous studies have reported the ability of EE2 to alter sex determination and delay sexual maturity, but there are toxic effects that need to be explored. In this work, we analyzed the effect of EE2 on embryonic development and oxidative stress biomarkers in Danio rerio. For this effect, zebrafish embryos in the blastula period (2.5 h post fecundation) were exposed to different concentrations of EE2 (36-106 ng L-1) until 96 hpf. Survival, alterations to embryonic development, and teratogenic effects were evaluated using a stereomicroscope. Furthermore, oxidative stress biomarkers: superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX) activities, lipid peroxidation (LPX), hydroperoxide content (HPX), and protein carbonyl content (POX) were evaluated at 72 and 96 hpf using spectrophotometric methods. LC50 and EC50 of malformations got values of 82 ng L-1 and 57.7 ng L-1, respectively. The main teratogenic effects found were: chorda malformation, body malformation, and developmental delay. These alterations occurred at 86, 96, and 106 ng L-1. Integrated biomarker index showed that the oxidative stress biomarkers that had the most influence on embryos were SOD, CAT, GPX, and LPX. Overall, our results allow us to conclude that low concentrations of EE2 may potentially alter the development and oxidative status in the early life stages of zebrafish. Therefore, this bio-active estrogen can be considered a hazardous substance for fish | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Embryotoxic | |
| 650 | 4 | |a Estrogen | |
| 650 | 4 | |a Teratogenic effects | |
| 650 | 4 | |a Zebrafish | |
| 650 | 7 | |a Biomarkers |2 NLM | |
| 650 | 7 | |a Water Pollutants, Chemical |2 NLM | |
| 650 | 7 | |a Ethinyl Estradiol |2 NLM | |
| 650 | 7 | |a 423D2T571U |2 NLM | |
| 700 | 1 | |a Gómez-Oliván, Leobardo Manuel |e verfasserin |4 aut | |
| 700 | 1 | |a Gutiérrez-Noya, Verónica Margarita |e verfasserin |4 aut | |
| 700 | 1 | |a Orozco-Hernández, José Manuel |e verfasserin |4 aut | |
| 700 | 1 | |a Islas-Flores, Hariz |e verfasserin |4 aut | |
| 700 | 1 | |a Elizalde-Velázquez, Gustavo Axel |e verfasserin |4 aut | |
| 700 | 1 | |a SanJuan-Reyes, Nely |e verfasserin |4 aut | |
| 700 | 1 | |a Galar-Martínez, Marcela |e verfasserin |4 aut | |
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