Study of serum copper and zinc in diabetic retinopathy and its correlation with glycemic status


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Article type :

Original Article

Author :

Arati Ganiger, K Mallikarjuna Swamy, Shankar Prasad DS, Neela B Mannangi, Shivanand Gundalli

Volume :

3

Issue :

1

Abstract :

Background: Diabetes Mellitus (DM) is a global public health problem. It is associated with increased level of free radicals which lead to oxidative stress and dangerous complications like retinopathy. Trace elements have specific role in progress to complications of DM. Objectives: The study was designed to estimate and   compare the levels of serum copper and zinc among type-2 DM with and without retinopathy and to compare them with matched healthy controls. A correlation of serum copper and zinc was done with glycosylated haemoglobin (HbA1c)   in patients of type 2 DM with retinopathy. Materials and Methods: It was a case control study. The investigation included 50 cases of type 2 DM with retinopathy and 50 cases of type 2 DM without retinopathy and 50 matched healthy controls. Venous  blood sample  was analysed for fasting blood sugar(FBS), post prandial blood sugar (PPBS), serum copper, serum zinc and glycosylated haemoglobin(HbA1c) in both cases and controls. Statistical analysis was done using student 't' test. Pearson's correlation was performed to establish the relationship between study variables. Results: There was statistically highly significant increase in serum copper levels in cases of retinopathy compared to controls(p

Keyword :

Diabetic retinopathy, Type 2 DM, Copper, zinc, glycosylated hemoglobin