NDLI: SOD and CAT cDNA cloning, and expression pattern of detoxification genes in the freshwater bivalve Unio tumidus transplanted into the Moselle river.

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Year: 2010 Volume: 19 Issue: 1

Year: 2009 Volume: 18

Year: 2008 Volume: 17

SOD and CAT cDNA cloning, and expression pattern of detoxification genes in the freshwater bivalve Unio tumidus transplanted into the Moselle river.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Bigot, Aurélie Vasseur, Paule Rodius, François
Spatial Coverage	France
Description	Country affiliation: France Author Affiliation: Bigot A ( Lab. L.I.E.B.E, CNRS UMR 7146, Université de Metz, Rue Delestraint, 57070, Metz, France.)
Abstract	The cDNA sequences encoding manganese superoxide dismutase (Mn-SOD) and catalase (CAT) were isolated in the freshwater bivalve Unio tumidus by reverse-transcription polymerase chain reaction (RT-PCR) using degenerate primers. Quantitative real-time PCR approach was used to evaluate the mRNA expression patterns of SOD, CAT, selenium-dependent glutathione peroxidase (Se-GPx), pi class glutathione S-transferase (pi-GST) and metallothionein (MT), in the digestive gland of Unio tumidus transplanted from a control site to four stations in the Moselle River (M1-M4), for periods of 8 and 21 days. These sites were chosen upstream and downstream of populated areas. Chemical analysis performed on sediments from the Moselle river sites did not show high levels of pollutants. Decrease of SOD, CAT, Se-GPx and MT mRNA levels were observed at M3 site after a 21-day exposure compared to control site. These results suggest inefficiency of antioxidant systems affected by cytotoxic mechanisms and confirm an environmental perturbation. Organisms transplanted at M4 site showed a strong increase of biomarkers transcription levels after 21 days of exposure. These inductions could correspond to an adaptive response to an altered environment. Our results showed that biological approaches using multibiomarkers appear as essential tools complementary to measurement of contaminants, to detect environmental degradations.
File Format	HTM / HTML
ISSN	09639292
Issue Number	2
Volume Number	19
e-ISSN	15733017
Journal	Ecotoxicology
Language	English
Publisher	Springer
Publisher Date	2010-02-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Ecology Discipline Environmental Health Discipline Toxicology Catalase Genetics Dna, Complementary Gene Expression Regulation, Enzymologic Inactivation, Metabolic Rivers Superoxide Dismutase Unio Drug Effects Water Pollutants, Chemical Toxicity Amino Acid Sequence Animals Base Sequence Chemistry Cloning, Molecular France Glutathione Peroxidase Isolation & Purification Metabolism Glutathione Transferase Metallothionein Metals Rna, Messenger Reverse Transcriptase Polymerase Chain Reaction Time Factors Transcription, Genetic Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Health, Toxicology and Mutagenesis Medicine Toxicology Management, Monitoring, Policy and Law

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