Gill and liver histopathology in Goodea atripinnis Jordan, related to oxidative stress in Yuriria Lake, Mexico

Título traducido de la contribución: Histopatología en las Branquias e Hígado de Goodea atripinnis Jordan, Relacionada con el Estrés Oxidativo en la Laguna Yuriria, México

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

10 Citas (Scopus)

Resumen

In aquatic ecosystems, the complex mixture of pollutants may mediate the formation of free radicals and cause oxidative damage to the biota. Yuriria Lake (a Ramsar site in Central Mexico) receives input of wastewater from its tributaries, agricultural runoff, and municipal discharge. We studied the lipid peroxidation (LPO), antioxidant enzymes (superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx), and histopathology of gill and liver of the native fish Goodea atripinnis in Yuriria Lake. Results were compared to a control group of fish cultivated in the laboratory. LPO, SOD, and CAT showed no significant differences compared to controls, but GPx showed greater and significant differences in both tissues. Three class sizes were identified; organisms of classes I and II had slight vasocongestion in the liver as compared to controls. Hepatocytes of class III showed cytoplasmic vacuolization, cellular disorganization, and the liver showed marked fibrosis compared to controls. Gills of controls and classes I and II showed no damage in gill filaments. Tissue damage in class III included hypertrophy, loss of the typical morphology, and edema in the gill filaments. The longer exposure of older organisms to Yuriria Lake conditions may have resulted in their poorer health condition.

Título traducido de la contribuciónHistopatología en las Branquias e Hígado de Goodea atripinnis Jordan, Relacionada con el Estrés Oxidativo en la Laguna Yuriria, México
Idioma originalInglés
Páginas (desde-hasta)1139-1149
Número de páginas11
PublicaciónInternational Journal of Morphology
Volumen30
N.º3
DOI
EstadoPublicada - sep. 2012

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