Related Experiment Videos
Changes in postheparin lipolytic activity in liver diseases.
Acta Universitatis Carolinae. Medica. Monographia
|January 1, 1977
Summary
Lipoprotein lipase and postheparin esterase activity decrease in chronic liver disease. Postheparin esterase activity can monitor acute liver disease progression and shows enhanced response to testosterone in cirrhotic patients.
Area of Science:
- Biochemistry
- Hepatology
- Endocrinology
Background:
- Lipolytic enzyme activity, specifically lipoprotein lipase and postheparin esterase, is altered in liver diseases.
- Postheparin esterase activity is significantly diminished or absent in chronic liver conditions.
Purpose of the Study:
- To investigate the diagnostic and prognostic value of postheparin esterase activity in liver diseases.
- To assess the impact of sex hormones, such as testosterone, on postheparin esterase activity in patients with liver cirrhosis.
Main Methods:
- Enzyme activity assays for lipoprotein lipase and postheparin esterase.
- Monitoring of enzyme activity in patients with acute and chronic liver diseases.
- Administration of testosterone to cirrhotic patients and measurement of subsequent enzyme activity changes.
Main Results:
- Postheparin esterase activity is markedly reduced in chronic liver diseases, often near zero.
- In acute liver diseases, postheparin esterase activity is low but recovers with patient improvement, indicating its utility in disease monitoring.
- Cirrhotic patients exhibit a significantly greater percentage increase in postheparin esterase activity following testosterone administration compared to healthy individuals.
Conclusions:
- Postheparin esterase activity serves as a valuable biomarker for assessing the course of acute liver disease.
- The response of postheparin esterase activity to testosterone suggests a potential therapeutic or diagnostic avenue in managing liver cirrhosis.