• Anoshia Javed, Khadija Mehboob, Amir Rashid, Asifa Majid, Sumbal Khan, and Zunaira Ali Baig.
• Department of Biochemistry, Army Medical College, Islamabad, Pakistan.
• J Coll Physicians Surg Pak. 2023 Nov 1; 33 (11): 125412581254-1258.

ObjectiveTo compare superoxide dismutase 1 (SOD 1) and malondialdehyde (MDA) levels along with biochemical parameters in patients of non-alcoholic fatty liver disease (NAFLD) with and without Type 2 diabetes mellitus.Study DesignCross-sectional comparative study. Place and Duration of the Study: Centre for Research in Experimental and Applied Medicine, AMC, in collaboration with the Department of Radiology, Combined Military Hospital, Rawalpindi, from February to November 2022.MethodologyTwo hundred and ten patients were selected by non-probability purposive sampling and divided into 3 groups. Healthy individuals were labelled as Group Ι, Group II included patients of NAFLD without diabetes mellitus, and Group III had patients of NAFLD with diabetes mellitus. Fasting blood glucose levels and lipid profile were measured. ELISA (enzyme-linked immunoassay) was done for the assessment of SOD 1 and MDA levels. The data was analysed by version 22.0 of SPSS and expressed in mean ± SD and percentage. One-way ANOVA was done for all groups and grade comparison was followed by the post-hoc Tukey test.ResultsWhen compared to control groups, the mean SOD 1 level in diseased groups was significantly lower (p<0.001). There was a statistically significant difference between each group (p<0.001). Mean levels of MDA were significantly increased in diseased groups as compared to controls with a statistically significant difference between all groups except between Group II and III.ConclusionIn patients having NAFLD with and without diabetes mellitus, SOD 1 levels were considerably lower compared to controls whereas MDA levels were significantly higher. This decrease in SOD 1 and raise in MDA levels was indicative of increased oxidative stress in patients and can be viewed as a biomarker for oxidative stress.Key WordsNAFLD, ELISA, Oxidative stress, SOD 1, MDA, Lipid peroxidation.

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