Quantitative analysis of glycogen content in hepatocytes of portal and central lobule zones of normal human liver and in patients with chronic hepatitis of different etiology

Abstract

Glycogen content was determined in hepatocytes of different lobule zones of the normal human liver (23 patients without any liver pathology) and the liver of patients with chronic viral B hepatitis (30 patients) and chronic alcohol hepatitis (28 patients). All the patients were males and aged between 17–50 years. Quantitative analysis of the glycogen content in hepatocytes of portal and central lobule zones was carried out in sections of the human liver (material of punctional biopsies) stained with PAS-reaction. The measurements were carried out using an image analyser ‘Magiscan’ which allows combined cytophotometric analysis of a substance in cells and determination of the cell localization in tissue. The results showed significant differences of the glycogen content in different lobule zones in the normal liver and in the liver in chronic viral and alcohol hepatitis. Ratios of glycogen content in hepatocytes of the portal and the central zones of liver lobule were 1.128 ± 0.004 and 1.061 ± 0.003 in normal human liver, and liver of patients with chronic viral hepatitis respectively, i.e. the glycogen content in hepatocytes of the portal lobule zone was much higher than in the central lobule zone in the normal liver and in the liver of patients with chronic viral B hepatitis. The ratio in patients with chronic alcohol hepatitis was less than 1.0 (0.930 ± .0.003), i.e. a significantly higher glycogen content was found in hepatocytes of the central liver lobule zone. Possible mechanisms of this phenomenon are discussed. Thus, the pattern of the glycogen content in hepatocytes of different lobule zones can be used as an indicator of etiology of chronic hepatitis.