scholarly journals Tissue fractionation studies. 2. The nature of the linkage between acid phosphatase and mitochondria in rat-liver tissue

1951 ◽  
Vol 50 (2) ◽  
pp. 182-189 ◽  
Author(s):  
J. Berthet ◽  
L. Berthet ◽  
F. Appelmans ◽  
C. De Duve
Keyword(s):  
Acid Phosphatase ◽  
Rat Liver ◽  
Liver Tissue ◽  
Tissue Fractionation

scholarly journals Tissue fractionation studies. 6. Intracellular distribution patterns of enzymes in rat-liver tissue*

1955 ◽  
Vol 60 (4) ◽  
pp. 604-617 ◽  
Author(s):  
C. de Duve ◽  
B. C. Pressman ◽  
R. Gianetto ◽  
R. Wattiaux ◽  
F. Appelmans
Keyword(s):  
Rat Liver ◽  
Liver Tissue ◽  
Distribution Patterns ◽  
Intracellular Distribution ◽  
Tissue Fractionation

scholarly journals Postprandial Glycogen Content Is Increased in the Hepatocytes of Human and Rat Cirrhotic Liver

Cells ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 976
Author(s):  
Natalia N. Bezborodkina ◽  
Sergey V. Okovityi ◽  
Boris N. Kudryavtsev
Keyword(s):  
Rat Liver ◽  
Liver Tissue ◽  
Glycogen Content ◽  
Glycogen Synthase ◽  
Fibrous Tissue ◽  
Glycogen Metabolism ◽  
Liver Parenchyma ◽  
Dry Mass ◽  
Cirrhotic Liver ◽  
Liver Biopsies

Chronic hepatitises of various etiologies are widespread liver diseases in humans. Their final stage, liver cirrhosis (LC), is considered to be one of the main causes of hepatocellular carcinoma (HCC). About 80–90% of all HCC cases develop in LC patients, which suggests that cirrhotic conditions play a crucial role in the process of hepatocarcinogenesis. Carbohydrate metabolism in LC undergoes profound disturbances characterized by altered glycogen metabolism. Unfortunately, data on the glycogen content in LC are few and contradictory. In this study, the material was obtained from liver biopsies of patients with LC of viral and alcohol etiology and from the liver tissue of rats with CCl4-induced LC. The activity of glycogen phosphorylase (GP), glycogen synthase (GS), and glucose-6-phosphatase (G6Pase) was investigated in human and rat liver tissue by biochemical methods. Total glycogen and its labile and stable fractions were measured in isolated individual hepatocytes, using the cytofluorometry technique of PAS reaction in situ. The development of LC in human and rat liver was accompanied by an increase in fibrous tissue (20- and 8.8-fold), an increase in the dry mass of hepatocytes (by 25.6% and 23.7%), and a decrease in the number of hepatocytes (by 50% and 28%), respectively. The rearrangement of the liver parenchyma was combined with changes in glycogen metabolism. The present study showed a significant increase in the glycogen content in the hepatocytes of the human and the rat cirrhotic liver, by 255% and 210%, respectively. An increased glycogen content in cells of the cirrhotic liver can be explained by a decrease in glycogenolysis due to a decreased activity of G6Pase and GP.

Sign in / Sign up

Export Citation Format

Share Document