ABSTRACT
It is a well known fact that iodine is a very important trace element for normal growth and metabolism. Iodination of biomolecules has many important functions in the field of research, assay procedures, investigation and diagnosis of diseases. The present study is done to compare the iodine uptake by the serum of diabetes mellitus cases and healthy controls. Methods: The study was carried out on 50 cases of known diabetes mellitus with mean fasting blood glucose level of 324 mg/dl and 25 healthy controls with mean fasting blood glucose level of 78 mg/dl. The modified version of the colorimetric method was employed for the assay of iodine uptake. The data’s were analyzed using SPSS version 10. Results: Serum total iodine uptake was decreased significantly in cases as compared to healthy controls (p <0.01). Conclusion: The results of our study indicate that there is decreased iodine uptake by diabetic serum. The cause for decreased iodine uptake may be related to high blood sugar level which possibly may be causing some alteration in the structure of biomolecules by glycation leading to decrease in the binding sites of iodine.
ABSTRACT
Paraoxonase 1 [PON1] is an esterase, exclusively synthesized by liver. The present study has two objectives: to determine the PON1 activity status in various disorders associated with hepatocellular damage and to correlate the changes of PON1 activity with the standard liver function and fasting lipid profile tests in these disorders. The study groups consisted of 95 patients with liver diseases including acute viral hepatitis [14], cirrhosis with portal hypertension [33], leptospirosis [14], sepsis and multi organ failure [15], left ventricular failure [9], and falciparum malaria [10]; and 53 healthy controls. Serum PON1 activity was measured manually using spectrophotometer. Liver function test parameters and fasting lipid profile were performed in clinical chemistry auto analyzer [HITACHI 912]. The serum PON1 activity in patients with acute viral hepatitis and sepsis decreased significantly [P<0.001] and moderately in falciparum malaria [P<0.05]. However, in patients with cirrhosis, leptospirosis and left ventricular patients, its activity did not change significantly. On applying Pearson correlation, serum PON1 activity correlated positively with high-density lipoprotein-cholesterol [HDL-C] in patients with sepsis [r=0.633, P<0.05], left ventricular failure patients [r=0.814, P<0.05] and negatively with acute viral hepatitis patients [r=-0.528, P<0.05]. PON1 activity has decreased significantly in acute viral hepatitis, sepsis with multi organ failure and falciparum malaria patients. Determination of PON1 activity may serve as a useful additional test in assessing these conditions