Failure of recovery from lead induced hepatoxicity and disruption of erythrocyte antioxidant defence system in Wistar rats.
Environ Toxicol Pharmacol
; 37(3): 1202-11, 2014 May.
Article
en En
| MEDLINE
| ID: mdl-24814264
ABSTRACT
Lead acetate (PbA) is one of the major environmental contaminants with grave toxicological consequences both in the developing and developed countries. The liver and erythrocyte antioxidant status and markers of oxidative were assessed. Exposure of rats to PbA led to significant decline (p < 0.05) in hepatic and erythrocyte glutathione peroxidase (GPx), glutathione S-transferase (GST), catalase (CAT), superoxide dismutase (SOD), and reduced glutathione (GSH) content. Similarly, malondialdehyde (MDA) and H(2)O(2) concentrations were significantly (p < 0.05) elevated. Histopathology and immunohistology of liver of rats exposed to PbA showed focal areas of necrosis and COX-2 expression after 6 weeks of PbA withdrawal. Taken together, hepatic and erythrocytes antioxidant defence system failed to recover after withdrawal of the exposed PbA for the period of the study. In conclusion, experimental animals exposed to PbA did not recover from hepatotoxicity and disruption of erythrocyte antioxidant defence system via free radical generation and oxidative stress.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Compuestos Organometálicos
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Contaminantes Ambientales
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Eritrocitos
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Enfermedad Hepática Inducida por Sustancias y Drogas
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Hígado
Tipo de estudio:
Etiology_studies
Límite:
Animals
Idioma:
En
Año:
2014
Tipo del documento:
Article