Determnation of total globulin in serum by direct method in patients with hepatitis-B and C

To establish a convenient and practicable direct method for estimation of globulin in the serum. The study was carried out in the Department of Biochemistry. Basic Medical Sciences Institute, Jinnah Postgraduate Medical Center Karachi. This was a prospective study performed during the period of January 2008 to June 2008. A single, convenient and stable method has been developed for the direct spectrophotometric analysis of globulin in the serum, which has good conformance to Beer's law and is also reproducible. The analysis is based on Hopkins-Cole reaction, which is a direct method for the estimation of total globulin in the serum. The method is based on the estimation of serum tryptophan levels. There is a direct correlation between total serum globulin and total serum tryptophan levels. Globulin differs markedly from albumin in the proportion of their tryptophan content. The glyoxylic acid condenses with tryptophan residues present in globulin and produces purple colour in the presence of copper in an acidic medium. The intensity of colour produced is directly proportional to the concentration of globulin present. The method has no statistical difference with indirect method, both in normal and diseased subjects. In patients when only globulin estimation is required, it can be done by direct method, which is convenient, fast, simple and is not laborious and saves time by avoiding double test performance

Lipoprotein [a] behaviour in viral hepatitis patients

To correlate liver lipoprotein [a] level with biochemical parameters of viral hepatitis, induced due to most common causes, hepatitis B and C. This was a prospective study performed during the period of January 2008 to June 2008. Patient selection was done by simple random enrollment of adult males and females after confirmation of their diagnosis by ELISA method. Total of 80 patients positive for hepatitis B and C virus infection with and without cirrhosis were enrolled for study. Normal subjects were selected as control for study. Serum lipoprotein [a] was estimated by ELISA method and prothrombin time by one stage method. While enzymes assay was done by enzymatic method. The mean values of lipoprotein [a] were found statistically significantly diminished in all groups, which indicate decreased synthesis by the damaged liver. It showed statistically significant negative correlation with prothrombin time, AST and ALT in all patients groups. The results of our study indicate that there is an apparent decline in lipoprotein [a] level in both patients of with and without cirrhosis irrespective of causative organism, relatively more decline in patients of cirrhosis. The apparent decline and evidence of more decrease in the level of lipoprotein [a] with the increase in the stage of disease and its significant correlation with other biochemical parameters, reflects that the evaluation of lipoprotein [a] serum levels may contribute, among other markers, to a more complete evaluation of liver function in patients of viral hepatitis