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Title: | The interference of pharmaceuticals with endogenous and xenobiotic metabolizing enzymes in carp liver: an in-vitro study |
Authors: | Thibaut, Rémi; Schnell, Sabine ![]() ![]() |
Keywords: | Xenobiotic In vitro Liver Enzyme Drug Interference |
Issue Date: | 7-Jul-2006 |
Publisher: | American Chemical Society |
Citation: | Environmental Science & Technology 40(16): 5154-5160 (2006) |
Abstract: | The interactions of fibrate (clofibrate, fenofibrate, bezafibrate, gemfibrozil), antiinflammatory (ibuprofen, diclofenac, naproxen, ketoprofen), and anti-depressive (fluoxetine, fluvoxamine, paroxetine) drugs with CYP catalyzed pathways (CYP1A, CYP3A-, CYP2K-, and CYP2M-like) and Phase II activities (UDP-glucuronosyltransferases and sulfotransferases), involved in both xenobiotic and endogenous metabolism in fish, were investigated in-vitro by incubating carp liver subcellular fractions in the presence of the substrate and the selected drug. Antidepressive drugs were strong inhibitors of CYP1A (92-94% inhibition), CYP3A-like (69-80% inhibition), and CYP2Klike (36-69% inhibition) catalyzed activities, while antiinflammatory drugs were potent CYP2M-like inhibitors (32-74% inhibition). Among the lipid regulators, gemfibrozil strongly inhibited CYP2M-catalyzed activity (91% inhibition) and other CYP isoforms (CYP1A and CYP3A-like). Additionally, glucuronidation of naphthol and testosterone were targeted by antiinflammatory drugs, and to a lesser extent, by fibrate drugs (48-78% inhibition). No significant alteration on sulfotransferase activities was observed, apart from a minor inhibitory effect of clofibrate, gemfibrozil, and fluoxetine on the sulfation of estradiol. Overall, gemfibrozil, diclofenac, and the three anti-depressive drugs appear to be the pharmaceuticals with the highest potential to interfere with fish metabolic systems. |
Description: | 7 pages, 2 figures.-- PMID: 16955921 [PubMed].-- Printed version published Aug 15, 2006. |
Publisher version (URL): | http://dx.doi.org/10.1021/es0607483 |
URI: | http://hdl.handle.net/10261/11569 |
DOI: | 10.1021/es0607483 |
ISSN: | 0013-936x |
E-ISSN: | 1520-5851 |
Appears in Collections: | (IDAEA) Artículos |
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