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Objective:To examine the effect of smoking on serum xanthine oxidase, malondialdehyde, α- tocopherol and ascorbic acid levels in healthy adult male subjects.Methods:This cross-sectional comparative study was carried out at Isra University Hyderabad from July 2012 to December 2012. One hundred and twenty apparently healthy adult male subjects (60 smokers and 60 non-smokers) included in present study, were recruited from Jaindal kot, a small village located midway between Hyderabad and Matiari. Serum samples from smokers and non-smokers were analyzed for xanthine oxidase and malondialdehyde levels by standard kit methods, while for ascorbic acid and alpha- tocopherol by spectrophotometric methods.Results:The mean xanthine oxidase and malondialdehyde levels measured in healthy smokers were 0.30±0.05 mg/dl and 37.50±4.05 µmoles/l respectively as against 0.25±0.04 mg/dl and 19.86±2.21µmoles/l in non-smokers. Both xanthine oxidase and malondialdehyde levels were significantly (p<0.001) raised in healthy smokers than in non-smokers. Likewise, mean vitamin E and vitamin C levels were respectively 0.69±0.37 mg/dl and 0.80±0.16 mg/dl in healthy smokers compared to 1.14±0.43 mg/dl and 1.22±0.29 mg/dl in non-smokers. The concentrations of both these vitamins were significantly (p<0.001) lower in smokers than in non-smokers.Conclusion:The results of present study demonstrate that smoking had significantly increased xanthine oxidase and malondialdehyde levels and decreased vitamins C and E (antioxidants) levels. These findings suggest that smokers have to take additional amounts of vitamins C and E in order to avoid deleterious effects of smoking on their health.

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Objective: To investigate the common risk factors involved in the pathogenesis of renal stones and diabetes mellitus in adults. Method: The case-control study was carried out at the urology outpatient department and diabetic clinic of the Liaquat University of Medical and Health Sciences, Hyderabad, Pakistan, from January 2019 to January 2020, and comprised renal stone patients in group A, diabetes mellitus patients in group B and healthy controls in group C. Height and weight were determined for all subjects, followed by calculation of body mass index. Serum samples were analysed for creatinine, uric acid, total antioxidants, iron, malondialdehyde, superoxide dismutase, catalase, glutathione peroxidase, lactate dehydrogenase, xanthine oxidase, C-reactive protein, and nuclear factor kappa-light-chain-enhancer of activated B cells. Intra-group comparisons were done. Data was analysed using SPSS 22. Results: Of the 400 subjects, 100(25%) each were in groups A and B, and 200(50%) were in group C. Overall, there were 236(59%) males and 164(41%) females. The age range of the sample was 20-40 years. Obesity was more prevalent in group B 26(26%) as against 4(4%) in group A and 20(10%) in group C. Compared to group C, superoxide dismutase (p=0.0128) and C-reactive protein (p=0.032) levels were higher in group B, while the levels were lower for uric acid (p=0.0067), iron (p=0.0147) and xanthine oxidase (p=0.0360). ---Continue