NDLI: Detection of naproxen and its metabolites in fish bile following intraperitoneal and aqueous exposure.

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Detection of naproxen and its metabolites in fish bile following intraperitoneal and aqueous exposure.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Brozinski, Jenny-Maria Lahti, Marja Oikari, Aimo Kronberg, Leif
Description	Country affiliation: Finland Author Affiliation: Brozinski JM ( Laboratory of Organic Chemistry, Åbo Akademi University, Biskopsgatan 8, 20500, Åbo/Turku, Finland.)
Abstract	PURPOSE: The anti-inflammatory drug naproxen (NPX) has been found as a micropollutant in river water downstream the discharge points of wastewater treatment plants (WWTP). In this study, rainbow trout (Oncorhynchus mykiss) was exposed to NXP and the uptake and metabolism of the drug was studied. METHODS: Following exposure through intraperitoneal injection (i.p., 0.5 mg NPX/100 g fish biomass) and through water (1.6 µg L(-1)), the bile was collected and analyzed with various LC-MS/MS methods. The identification of the formed metabolites in i.p. injected fish was based on the exact mass determinations by a time-of-flight mass analyzer (Q-TOF-MS) and on the studies of fragments and fragmentation patterns of precursor ions by an ion trap mass analyzer (IT-MS). RESULTS: No matter the exposure route, the main metabolites were found to be acyl glucuronides of NPX and of 6-O-desmethylnaproxen. Also, unmetabolized NPX was detected in the bile. The total bioconcentration factors (BCF(total-bile)) of NPX and the metabolites in the bile of fish exposed through water ranged from 500 to 2,300. CONCLUSION: The findings suggest that fish living downstream WWTPs may take up NPX and metabolize the compound. Consequently, NPX and its metabolites in bile can be used to monitor the exposure of fish to NPX.
ISSN	09441344
Issue Number	5
Volume Number	18
e-ISSN	16147499
Journal	Environmental Science and Pollution Research
Language	English
Publisher	Springer
Publisher Date	2011-06-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Naproxen Metabolism Pharmacokinetics Oncorhynchus Mykiss Water Pollutants, Chemical Animals Anti-inflammatory Agents, Non-steroidal Administration & Dosage Chemistry Biological Availability Environmental Exposure Injections, Intraperitoneal Molecular Structure Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine

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Detection of naproxen and its metabolites in fish bile following intraperitoneal and aqueous exposure.

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