Effects of the brominated flame retardants hexabromocyclododecane (HBCDD), and tetrabromobisphenol A (TBBPA), on hepatic enzymes and other biomarkers in juvenile rainbow trout and feral eelpout. Ronisz, D, Finne, E F., Karlsson, H, & Förlin, L Aquatic toxicology, 69(3):229–45, August, 2004. Paper doi abstract bibtex Brominated flame retardants (BFRs) leak out in the environment, including the aquatic one. Despite this, sublethal effects of these chemicals are poorly investigated in fish. In this study, a screening of selected biomarkers in juvenile rainbow trout (Oncorhynchus mykiss) and feral eelpout (Zoarces viviparus) was performed after exposure to hexabromocyclododecane (HBCDD) and tetrabromobisphenol A (TBBPA). Rainbow trout was injected intraperitoneally (i.p.) with HBCDD or TBBPA. Two out of four short-term experiments with HBCDD showed an increase in the activity of catalase. A 40% increase in liver somatic index (LSI) could be observed after 28 days. HBCDD did also seem to have an inhibitory effect on CYP1A's activity (ethoxyresorufin-O-deethylase (EROD)). A putative peroxisome proliferating activity of the compound was investigated without giving a definite answer. HBCDD did not seem to be estrogenic or genotoxic. TBBPA increased the activity of glutathione reductase (GR) after 4, 14 and 28 days in rainbow trout suggesting a possible role of this compound in inducing oxidative stress. The compound did not seem to be estrogenic. TBBPA seemed to compete with the artificial substrate ethoxyresorufin in vitro, during the EROD assay. In eelpout, only one 5 days in vivo experiment was performed. Neither of the compounds gave rise to any effect in this fish. This was the first screening of sublethal effects of the two chemicals in fish, using high doses. Our results indicate that there is a need for further studies of long-term, low-dose effects of these two widely used flame retardants.
@article{ronisz_effects_2004,
title = {Effects of the brominated flame retardants hexabromocyclododecane ({HBCDD}), and tetrabromobisphenol {A} ({TBBPA}), on hepatic enzymes and other biomarkers in juvenile rainbow trout and feral eelpout.},
volume = {69},
issn = {0166-445X},
url = {http://www.ncbi.nlm.nih.gov/pubmed/15276329},
doi = {10.1016/j.aquatox.2004.05.007},
abstract = {Brominated flame retardants (BFRs) leak out in the environment, including the aquatic one. Despite this, sublethal effects of these chemicals are poorly investigated in fish. In this study, a screening of selected biomarkers in juvenile rainbow trout (Oncorhynchus mykiss) and feral eelpout (Zoarces viviparus) was performed after exposure to hexabromocyclododecane (HBCDD) and tetrabromobisphenol A (TBBPA). Rainbow trout was injected intraperitoneally (i.p.) with HBCDD or TBBPA. Two out of four short-term experiments with HBCDD showed an increase in the activity of catalase. A 40\% increase in liver somatic index (LSI) could be observed after 28 days. HBCDD did also seem to have an inhibitory effect on CYP1A's activity (ethoxyresorufin-O-deethylase (EROD)). A putative peroxisome proliferating activity of the compound was investigated without giving a definite answer. HBCDD did not seem to be estrogenic or genotoxic. TBBPA increased the activity of glutathione reductase (GR) after 4, 14 and 28 days in rainbow trout suggesting a possible role of this compound in inducing oxidative stress. The compound did not seem to be estrogenic. TBBPA seemed to compete with the artificial substrate ethoxyresorufin in vitro, during the EROD assay. In eelpout, only one 5 days in vivo experiment was performed. Neither of the compounds gave rise to any effect in this fish. This was the first screening of sublethal effects of the two chemicals in fish, using high doses. Our results indicate that there is a need for further studies of long-term, low-dose effects of these two widely used flame retardants.},
number = {3},
journal = {Aquatic toxicology},
author = {Ronisz, D and Finne, E Farmen and Karlsson, H and Förlin, L},
month = aug,
year = {2004},
pmid = {15276329},
keywords = {Animals, Blotting, Brominated, Brominated: chemistry, Brominated: toxicity, Catalase, Catalase: metabolism, Cytochrome P-450 CYP1A1, Cytochrome P-450 CYP1A1: metabolism, Cytosol, Cytosol: enzymology, Enzyme-Linked Immunosorbent Assay, Flame Retardants: toxicity, Flame retardants, Gas Chromatography-Mass Spectrometry, Glutathione Reductase, Glutathione Reductase: metabolism, Hydrocarbons, Liver, Liver: drug effects, Liver: enzymology, Microsomes, Oncorhynchus mykiss, Oncorhynchus mykiss: metabolism, Organ Size, Perciformes, Perciformes: metabolism, Polybrominated Biphenyls, Polybrominated Biphenyls: chemistry, Polybrominated Biphenyls: toxicity, Spectrophotometry, Time Factors, Ultraviolet, Western, frbldg, frelec, tox},
pages = {229--45},
}
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In this study, a screening of selected biomarkers in juvenile rainbow trout (Oncorhynchus mykiss) and feral eelpout (Zoarces viviparus) was performed after exposure to hexabromocyclododecane (HBCDD) and tetrabromobisphenol A (TBBPA). Rainbow trout was injected intraperitoneally (i.p.) with HBCDD or TBBPA. Two out of four short-term experiments with HBCDD showed an increase in the activity of catalase. A 40% increase in liver somatic index (LSI) could be observed after 28 days. HBCDD did also seem to have an inhibitory effect on CYP1A's activity (ethoxyresorufin-O-deethylase (EROD)). A putative peroxisome proliferating activity of the compound was investigated without giving a definite answer. HBCDD did not seem to be estrogenic or genotoxic. TBBPA increased the activity of glutathione reductase (GR) after 4, 14 and 28 days in rainbow trout suggesting a possible role of this compound in inducing oxidative stress. The compound did not seem to be estrogenic. TBBPA seemed to compete with the artificial substrate ethoxyresorufin in vitro, during the EROD assay. In eelpout, only one 5 days in vivo experiment was performed. Neither of the compounds gave rise to any effect in this fish. This was the first screening of sublethal effects of the two chemicals in fish, using high doses. Our results indicate that there is a need for further studies of long-term, low-dose effects of these two widely used flame retardants.","number":"3","journal":"Aquatic toxicology","author":[{"propositions":[],"lastnames":["Ronisz"],"firstnames":["D"],"suffixes":[]},{"propositions":[],"lastnames":["Finne"],"firstnames":["E","Farmen"],"suffixes":[]},{"propositions":[],"lastnames":["Karlsson"],"firstnames":["H"],"suffixes":[]},{"propositions":[],"lastnames":["Förlin"],"firstnames":["L"],"suffixes":[]}],"month":"August","year":"2004","pmid":"15276329","keywords":"Animals, Blotting, Brominated, Brominated: chemistry, Brominated: toxicity, Catalase, Catalase: metabolism, Cytochrome P-450 CYP1A1, Cytochrome P-450 CYP1A1: metabolism, Cytosol, Cytosol: enzymology, Enzyme-Linked Immunosorbent Assay, Flame Retardants: toxicity, Flame retardants, Gas Chromatography-Mass Spectrometry, Glutathione Reductase, Glutathione Reductase: metabolism, Hydrocarbons, Liver, Liver: drug effects, Liver: enzymology, Microsomes, Oncorhynchus mykiss, Oncorhynchus mykiss: metabolism, Organ Size, Perciformes, Perciformes: metabolism, Polybrominated Biphenyls, Polybrominated Biphenyls: chemistry, Polybrominated Biphenyls: toxicity, Spectrophotometry, Time Factors, Ultraviolet, Western, frbldg, frelec, tox","pages":"229–45","bibtex":"@article{ronisz_effects_2004,\n\ttitle = {Effects of the brominated flame retardants hexabromocyclododecane ({HBCDD}), and tetrabromobisphenol {A} ({TBBPA}), on hepatic enzymes and other biomarkers in juvenile rainbow trout and feral eelpout.},\n\tvolume = {69},\n\tissn = {0166-445X},\n\turl = {http://www.ncbi.nlm.nih.gov/pubmed/15276329},\n\tdoi = {10.1016/j.aquatox.2004.05.007},\n\tabstract = {Brominated flame retardants (BFRs) leak out in the environment, including the aquatic one. Despite this, sublethal effects of these chemicals are poorly investigated in fish. In this study, a screening of selected biomarkers in juvenile rainbow trout (Oncorhynchus mykiss) and feral eelpout (Zoarces viviparus) was performed after exposure to hexabromocyclododecane (HBCDD) and tetrabromobisphenol A (TBBPA). Rainbow trout was injected intraperitoneally (i.p.) with HBCDD or TBBPA. Two out of four short-term experiments with HBCDD showed an increase in the activity of catalase. A 40\\% increase in liver somatic index (LSI) could be observed after 28 days. HBCDD did also seem to have an inhibitory effect on CYP1A's activity (ethoxyresorufin-O-deethylase (EROD)). A putative peroxisome proliferating activity of the compound was investigated without giving a definite answer. HBCDD did not seem to be estrogenic or genotoxic. TBBPA increased the activity of glutathione reductase (GR) after 4, 14 and 28 days in rainbow trout suggesting a possible role of this compound in inducing oxidative stress. The compound did not seem to be estrogenic. TBBPA seemed to compete with the artificial substrate ethoxyresorufin in vitro, during the EROD assay. In eelpout, only one 5 days in vivo experiment was performed. Neither of the compounds gave rise to any effect in this fish. This was the first screening of sublethal effects of the two chemicals in fish, using high doses. 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