Association of Serum 8-isoprostaglandin F2? Levels with Glycemic Control in Type 2 Diabetes Patients with Senile Cataract

ABSTRACT

Background: Lipid Peroxidation (LPO) plays a major initiative factor of cataractogenesis in both age-related or senile cataract and Diabetic cataract. Recently, 8-isoprostaglandin F2? (8-iso-PGF2?) is a reliable biomarker of in-vivo LPO and used as potential indicator of oxidative stress. However, serum 8-iso-PGF2? concentration and its association with glycemic control (HbA1c) in the pathogenesis of diabetic cataract subjects are still unknown. Objectives: The present study was designed to estimate 8-iso-PGF2? and antioxidant enzymes levels in serum of Type 2 Diabetes Mellitus patients with senile cataract compared to healthy individuals without cataract as control. To assess the magnitude of the association between 8-iso-PGF2? and glycemic status in diabetic cataract. Materials and Methods: 60 Diabetic Senile Cataracts (DSC) and 60 healthy individuals without cataract in the age group between 45-75 years of both genders. 8-iso-PGF2?, Superoxide Dismutase [Cu-Zn] (SOD3) and Catalase (CAT) concentration were estimated in serum by ELISA method. Results: The mean concentration of 8-iso-PGF2? was significantly increased (541.6±142.7 pg/ml, p<0.001) and mean concentration of SOD3 (102.1±32.8 ng/ml, p=0.007) and Catalase (1005±274.5 IU/ml, p<0.001) were significantly decreased in serum of diabetic senile cataract when compared to healthy individuals without cataract (control). A negative correlation between serum 8-iso-PGF2? and SOD3 and positive correlation between serum 8- iso-PGF2? and fasting blood glucose were observed in Diabetic Senile Cataracts. Conclusion: The present findings indicate that increased 8-iso-PGF2? is associated with oxidative stress which plays a significant role in the pathogenesis of cataract in diabetic patients