Oxidative stress indicators and trace elements in the blue shark (Prionace glauca) off the east coast of the Mexican Pacific Ocean

Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP
Angélica Barrera-GarcíaT Zenteno-Savin

Abstract

Trace element concentrations and oxidative stress indicators (including production of reactive oxygen species (ROS), antioxidant enzyme activities and oxidative damage) were measured in muscle of blue sharks collected along the west coast of Baja California Sur to determine potential differences by sex and maturity cohorts. Mercury (Hg) concentration in muscle samples from larger sharks (>200 cm LT) exceeded the permissible limit (>1 ppm wet weight) for human consumption set by numerous international agencies. Significant differences were found in Hg concentrations (mature>immature; males>females), and in protein carbonyl concentrations (male>female); however, except for carbonyl protein levels, no significant differences by sex or maturity stage were found in the oxidative stress indicators. Differences between sexes and maturity stages in trace element concentration and carbonyl protein levels in blue shark muscle may be related to variations in diet within different cohorts.

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Citations

Feb 8, 2013·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Angélica Barrera-GarcíaTania Zenteno-Savín
Mar 19, 2013·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Marcela Vélez-AlavezTania Zenteno-Savín
May 8, 2014·Biological Trace Element Research·Gabriel Gustinelli Arantes de CarvalhoJosé Roberto Ferreira
Jun 20, 2014·Archives of Environmental Contamination and Toxicology·Darren RumboldAswani Volety
Apr 11, 2015·Marine Pollution Bulletin·Jailson Fulgencio de MouraSalvatore Siciliano
Jan 23, 2021·International Journal of Environmental Research and Public Health·Elisa Serviere-ZaragozaLia Celina Méndez-Rodríguez
Jan 11, 2021·Environmental Science and Pollution Research International·Sara Álvaro-BerlangaMarco A Liñán-Cabello
Mar 20, 2021·Archives of Environmental Contamination and Toxicology·Magdalena E Bergés-TiznadoFederico Páez-Osuna
Jun 26, 2021·Journal of Trace Elements in Medicine and Biology : Organ of the Society for Minerals and Trace Elements (GMS)·Rachel Ann Hauser-DavisDouglas H Adams

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