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An oxygenated metab...
An oxygenated metabolite of benzo[a]pyrene increases hepatic beta-oxidation of fatty acids in chick embryos
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- Westman, Ola, 1971- (författare)
- Örebro universitet,Institutionen för naturvetenskap och teknik,Structor Miljöteknik AB, Örebro, Sweden,MTM
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- Larsson, Maria, 1975- (författare)
- Örebro universitet,Institutionen för naturvetenskap och teknik,MTM
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- Venizelos, Nikolaos, 1946- (författare)
- Örebro universitet,Institutionen för hälsovetenskap och medicin
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- Hollert, Henner (författare)
- Institute for Environmental Research, Department of Ecosystem Analysis, RWTH Aachen University, Aachen, Germany
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- Engwall, Magnus, 1965- (författare)
- Örebro universitet,Institutionen för naturvetenskap och teknik,MTM
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(creator_code:org_t)
- 2014-01-03
- 2014
- Engelska.
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Ingår i: Environmental Science and Pollution Research. - Heidelberg : Springer Berlin/Heidelberg. - 0944-1344 .- 1614-7499. ; 21:9, s. 6243-6251
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Polycyclic aromatic hydrocarbons (PAHs) are well-known carcinogens to humans and ecotoxicological effects have been shown in several studies. However, PAHs can also be oxidized into more water soluble-oxygenated metabolites (Oxy-PAHs). The first purpose of the present project was to (1) assess the effects of a mixture containing three parent PAHs: anthracene, benz[a]anthracene, and benzo[a]pyrene versus a mixture of their oxygenated metabolites, namely: anthracene-9,10-dione, benz[a]anthracene-7,12-dione, and 9,10-dihydrobenzo[a]pyrene-7-(8H)-one on the hepatic fatty acid beta-oxidation in chicken embryos (Gallus gallus domesticus) exposed in ovo. The second and also main purpose of the project was to (2) assess the effects of the parent PAHs versus their oxy-PAHs analogues when injected individually, followed by (3) additional testing of the individual oxy-PAHs. The hepatic beta-oxidation was measured using a tritium release assay with [9,10-H-3]-palmitic acid (16:0) as substrate. The result from the first part (1) showed reduced hepatic beta-oxidation after exposure in ovo to a mixture of three PAHs, however, increased after exposure to the mixture of three oxy-PAHs compared to control. The result from the second part (2) and also the follow-up experiment (3) showed that 9,10-dihydrobenzo[a]pyrene-7-(8H)-one was the causative oxy-PAH. The implication of this finding on the risk assessment of PAH metabolite exposure in avian wildlife remains to be determined. To the best of our knowledge, no similar studies have been reported.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Miljöbioteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Biotechnology (hsv//eng)
Nyckelord
- Polycyclic aromatic hydrocarbons
- Oxygenated derivatives
- Chick embryo
- beta-oxidation
- Biology
- Biologi
- Enviromental Science
- Miljövetenskap
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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