title: Effects of dietary yeast Saccaromyces cerevisiae on the antioxidant system in the liver of juvenile sea bass Dicentrarchus labrax.
abstract: The main goal of this work was to determine the effect of dietary live yeast Saccharomyces cerevisiae on the oxidative status of sea bass Dicentrarchus labrax juveniles. Fishes were fed on three diets: the GM group were fed a diet containing lyophilized yeast grown on grape must, the CS group were fed a diet containing lyophilized yeast grown on cornstarch, and the control group were fed a diet without yeast. The activity of the main antioxidative enzymes, superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase, glutathione S-transferase (GST), and glutathione (GSH) content, as well as lipid peroxidation, was measured in the liver of sea bass juveniles 90 days after hatching. Supplementation of the diet with S. cerevisiae significantly reduced the SOD and CAT activity, increased the GST activity, decreased the GSH content, and had no effect on lipid peroxidation. The results support the already reported radical-scavenging properties of yeast and usefulness of its employment as antiperoxidative agent in fish.
authors.affiliation: Division of Aquaculture, Department of Public Health and Animal Science, University of Bari, Str. Prov. per Casamassima km 3, 70010, Valenzano, Italy.
authors.forename: Maria Pia
authors.initials: MP
authors.lastname: Santacroce
authors.forename: Elisabetta
authors.initials: E
authors.lastname: Merra
authors.forename: Gerardo
authors.initials: G
authors.lastname: Centoducati
authors.forename: Valentina
authors.initials: V
authors.lastname: Zacchino
authors.forename: Elisabetta
authors.initials: E
authors.lastname: Casalino
mesh_terms: D000375:Aging; D000821:Animal Feed / Q000032:analysis; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D000975:Antioxidants / Q000378:metabolism*; D001492:Bass / Q000378:metabolism*; D002374:Catalase; D004032:Diet / Q000662:veterinary; D019587:Dietary Supplements; D005979:Glutathione Peroxidase; D005982:Glutathione Transferase; D015227:Lipid Peroxidation; D008099:Liver / Q000187:drug effects* / Q000201:enzymology / Q000378:metabolism*; D010084:Oxidation-Reduction; D012441:Saccharomyces cerevisiae / Q000502:physiology*; D013482:Superoxide Dismutase
chemical_list: D000975:Antioxidants; D002374:Catalase; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase; D005982:Glutathione Transferase