Coexistence of Aflatoxicosis with Protein Malnutrition Worsens Hepatic Oxidative Damage in Rats.
J Biochem Mol Toxicol
; 30(6): 269-76, 2016 Jun.
Article
en En
| MEDLINE
| ID: mdl-26804159
ABSTRACT
To investigate the effects of the coexistence of aflatoxin B1 (AFB1) and protein malnutrition in rat liver, weanling rats were fed either normal protein diet (20% protein), low-protein (PEM) diet (5%), normal protein diet + 40 ppb AFB1, or low-protein diet + 40 ppb AFB1. After 8 weeks, biomarkers of hepatic functions and oxidative stress, caspase-3 activity, and tumor suppressor protein 53 (p53) were determined spectrophotometrically. Randomly amplified polymorphic DNA polymerase chain reaction (RAPD-PCR) was employed to determine genomic alterations among the groups. Coexistence of aflatoxicosis and PEM significantly decreased glutathione, glutathione-S-transferase, glutathione peroxidase, and superoxide dismutase, while it increased peroxidase and catalase. RAPD-PCR showed genomic alterations that were associated with significant increases in p53 level and caspase-3 activity in rats fed PEM diet + AFB1. In conclusion, the coexistence of aflatoxicosis and protein malnutrition induced oxidative stress with concomitant genomic alterations in the liver of weanling rats.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Aflatoxina B1
/
Estrés Oxidativo
/
Dieta con Restricción de Proteínas
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Enfermedad Hepática Inducida por Sustancias y Drogas
/
Hígado
Tipo de estudio:
Etiology_studies
Límite:
Animals
Idioma:
En
Revista:
J Biochem Mol Toxicol
Asunto de la revista:
BIOLOGIA MOLECULAR
/
BIOQUIMICA
/
TOXICOLOGIA
Año:
2016
Tipo del documento:
Article
País de afiliación:
Nigeria