Oxidative stress markers in aqueous humor of patients with senile cataracts.
Curr Eye Res
; 34(1): 36-41, 2009 Jan.
Article
em En
| MEDLINE
| ID: mdl-19172468
ABSTRACT
PURPOSE:
To investigate the levels of oxidative stress markers in human eyes with senile cataracts.METHODS:
We conducted a retrospective, case-controlled study of 57 patients with senile cataracts. To assess oxidative stress markers in the eye, we measured the enzymatic activities of superoxide dismutase (SOD) and catalase (CAT) as well as the total protein levels in aqueous humor.RESULTS:
In aqueous humor, SOD and CAT activity levels were 0.133 +/- 0.020 and 1.223 +/- 0.081 U/ml, respectively; protein levels were 2.372 +/- 0.166 mg/ml (means +/- SEM). We observed a significant increase in SOD activity and the protein level in progressed nuclear cataracts. No significant age-associated difference in antioxidant enzyme levels was detected.CONCLUSION:
Significant increases in the levels of SOD activity and total protein correlated with the severity of the cataract but not with patient age, suggesting that progressed cataract is associated with molecules leaking from the lens capsule.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Humor Aquoso
/
Superóxido Dismutase
/
Catarata
/
Biomarcadores
/
Catalase
/
Estresse Oxidativo
Tipo de estudo:
Observational_studies
/
Risk_factors_studies
Limite:
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Curr Eye Res
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Japão