Association between dietary fat and antioxidant status of Tunisian type 2 diabetic patients.
Prostaglandins Leukot Essent Fatty Acids
; 74(5): 323-9, 2006 May.
Article
em En
| MEDLINE
| ID: mdl-16584877
ABSTRACT
BACKGROUND:
The antioxidant enzymes superoxide dismutase (Cu/Zn SOD) and glutathione peroxidase (GSH-Px) provide a defense against the damage of cells by reactive oxygen species, which increased in diabetic state. It was demonstrated that dietary treatment could improve the antioxidant status in patients with type 2 diabetes mellitus. This study was undertaken to determine if erythrocyte Cu/Zn SOD and GSH-Px activities correlate with dietary nutrients in 35 selected type 2 diabetic patients (21 women and 14 men) without diabetic complications.RESULTS:
We found that erythrocyte Cu/Zn SOD was diminished in patients with poor controlled diabetes and GSH-Px activity was significantly decreased in obese compared with non-obese type 2 diabetic patients (1.07+/-0.87 and 2.36+/-1.99 U/ml, respectively; P=0.024). Both erythrocyte Cu/Zn SOD and GSH-Px activities were positively correlated to erythrocyte omega3-polyunsaturated fatty acids (PUFA). In non-obese diabetic patients, only GSH-Px activity was correlated negatively to the fraction of linoleic acid (182omega6) and arachidonic acid (204omega6) in erythrocytes phospholipids.CONCLUSIONS:
The data of this study reveal that activities of erythrocyte antioxidant enzymes were altered in type 2 diabetic patients. Further studies are needed to determine if diet supplemented with omega3-PUFA is required to improve antioxidant defense system in diabetic state.
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Base de dados:
MEDLINE
Assunto principal:
Gorduras na Dieta
/
Diabetes Mellitus Tipo 2
/
Antioxidantes
Tipo de estudo:
Risk_factors_studies
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Ano de publicação:
2006
Tipo de documento:
Article