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Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Physiological pathways involved in nutritional muscle dystrophy and healing in European sea bass (Dicentrarchus labrax) larvae
Author(s): Betancor, Monica
Izquierdo, Marisol S
Terova, Genciana
Preziosa, Elena
Saleh, Reda
Montero, Daniel
Hernandez-Cruz, Carmen Maria
Caballero, Maria Jose
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Keywords: Sea bass larvae
Oxidative stress
Issue Date: Feb-2013
Date Deposited: 25-Apr-2014
Citation: Betancor M, Izquierdo MS, Terova G, Preziosa E, Saleh R, Montero D, Hernandez-Cruz CM & Caballero MJ (2013) Physiological pathways involved in nutritional muscle dystrophy and healing in European sea bass (Dicentrarchus labrax) larvae. Comparative Biochemistry and Physiology Part A: Molecular and Integrative Physiology, 164 (2), pp. 399-409.
Abstract: The potential muscle regeneration after nutritional dystrophy caused by high dietary DHA contents in fish and the physiological pathways involved are still unknown. To better understand this process, an experiment was conducted for 3 weeks in 14 day-old European sea bass larvae using different DHA ratios (1 or 5%). After this period, part of the larvae fed 5% DHA diet was switched to 1% DHA diet ("wash-out") for another 2 weeks. Larvae fed 5% DHA diet showed altered oxidative status as indicated by the highest TBARS values, antioxidant enzymes (AOE) expression and incidence of muscular lesions. Accordingly, "washed-out" larvae showed lower dry weight and α-TOH content. IGF-I gene expression was elevated in 5% DHA larvae at 35 dph, suggesting increased muscle mitogenesis that was corroborated by the increase in myosin heavy chain expression. It can be concluded that high dietary DHA contents alter the oxidative status and cause muscular lesions in European sea bass larvae, with morphological and molecular aspects of mammalians muscular degenerative disease.
DOI Link: 10.1016/j.cbpa.2012.11.017
Rights: Published in Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology by Elsevier; Elsevier believes that individual authors should be able to distribute their accepted author manuscripts for their personal voluntary needs and interests, e.g. posting to their websites or their institution’s repository, e-mailing to colleagues. The Elsevier Policy is as follows: Authors retain the right to use the accepted author manuscript for personal use, internal institutional use and for permitted scholarly posting provided that these are not for purposes of commercial use or systematic distribution. An "accepted author manuscript" is the author’s version of the manuscript of an article that has been accepted for publication and which may include any author-incorporated changes suggested through the processes of submission processing, peer review, and editor-author communications.

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