2020
DOI: 10.1007/s00580-019-03090-y
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Oxidative stress in liver of grass carp Ctenopharyngodon idella naturally infected with Saprolegnia parasitica and its influence on disease pathogenesis

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Cited by 5 publications
(4 citation statements)
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“…In the same context, a significant reduction of CAT, levels was reported in two species of shrimps after pathogen infections: Penaeus monodon infected with white spot syndrome virus (WSSV) 79 and Litopenaeus stylirostris infected with Vibrio nigripulchritudo . Baldissera et al 68 and Zahran and Risha 47 recorded a significant inhibition of liver and serum SOD activity in grass carp and Nile tilapia naturally infected with S. parasitica and S. ferax found; respectively indicating lower protection against oxidative damage induced by superoxides 70 . Several studies reported drop in GSH activity in muscles gills, serum, head, kidney and liver of Nile tilapia naturally or experimentally infected with various pathogens such as A. laevis and P. herbarum 76 , E. faecali 34 and Falvobacterium colmnare 80 .…”
Section: Discussionmentioning
confidence: 94%
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“…In the same context, a significant reduction of CAT, levels was reported in two species of shrimps after pathogen infections: Penaeus monodon infected with white spot syndrome virus (WSSV) 79 and Litopenaeus stylirostris infected with Vibrio nigripulchritudo . Baldissera et al 68 and Zahran and Risha 47 recorded a significant inhibition of liver and serum SOD activity in grass carp and Nile tilapia naturally infected with S. parasitica and S. ferax found; respectively indicating lower protection against oxidative damage induced by superoxides 70 . Several studies reported drop in GSH activity in muscles gills, serum, head, kidney and liver of Nile tilapia naturally or experimentally infected with various pathogens such as A. laevis and P. herbarum 76 , E. faecali 34 and Falvobacterium colmnare 80 .…”
Section: Discussionmentioning
confidence: 94%
“…The presence of toxic chemicals, pollutants, or infections in fish environments could promote FRs production 62 – 66 . When the antioxidant system cannot cope with the oxidation rate of cell components, an irreversible process known as oxidative damage occurs, that is biomolecular damage caused by the attack of free radicals as reactive oxygen species (ROS) 67 , 68 .…”
Section: Discussionmentioning
confidence: 99%
“…El incremento en la concentración de malondialdehido (MDA), uno de los productos finales de la cadena de peroxidación lipídica, es usado como potencial indicador de daño lipídico sobre membranas celulares y como un marcador indirecto de la generación de EROs en peces (Ali et al, 2011). Estos incrementos fueron detectados en trucha arcoíris (Droshnev, 2020), bagre africano, tilapia del Nilo y carpas infectadas naturalmente o en forma experimental con Oomycetes y/o agentes bacterianos (Ali et al, 2011;Adeyemi, 2014;Azimzadeh y Amniattalab, 2017;Baldissera et al, 2020;Solopova et al, 2020). También se observaron alteraciones en los niveles de antioxidantes como el GSH y las enzimas CAT, SOD y GR, catalizadora de la reacción de reducción del GSSG, en tejidos y suero de peces En este trabajo se evalúan las concentraciones de GSH, GSSG, GR y daño oxidativo a lípidos (TBARS) como indicadores de estrés oxidativo en grupos truchas arcoíris infectadas con F. psychrophilum y expuestas a zoosporas de S. parasitica.…”
Section: Balance Oxidativounclassified
“…Distintos estudios demuestran que las enfermedades infecciosas generan condiciones prooxidantes que pueden producir aumentos en la peroxidación lipídica en órganos y tejidos de los peces. Por ejemplo, Baldissera et al (2020) observaron un aumento de la peroxidación lipídica junto con aumento en los niveles de EROs y una disminución de la capacidad antioxidante en el hígado de la carpa herbívora (Ctenopharyngodon idella (Valencienes)) infectadas naturalmente con Saprolegnia sp. Mientras que también se observaron aumentos en los niveles de peroxidación lipídica en hígado y riñón de tilapias infectadas con Providencia rettgeri Rettger (Souza et al, 2019), en el hígado del bagre plateado (Rhamdia quelen (Quoy y Gaimard)) infectado con Aeromonas sp.…”
Section: Balance Oxidativounclassified