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Can we increase protein synthesis by anabolic factors?
1Department of Clinical, Morphological and Technological Sciences, Division of Internal Medicine, University of Trieste, Italy. gianni.biolo@clmed.univ.trieste.it
Summary
Wasting disease involves altered protein turnover, either slow or fast. Anabolic hormones can help normalize depressed protein turnover in chronic conditions but require caution in critical illness or advanced kidney failure.
Area of Science:
- Biochemistry
- Endocrinology
- Metabolic Diseases
Background:
- Wasting disease states are defined by decreased or accelerated protein turnover.
- Slow turnover is linked to low intake, immobilization, hypoxia, or moderate organ failure.
- Rapid turnover occurs in hypercatabolic states and systemic inflammation.
Purpose of the Study:
- To explore the role of anabolic hormones in modulating protein turnover across various disease states.
- To assess the safety and efficacy of anabolic agents in chronic versus acute conditions.
- To evaluate the specific impact of anabolic agents on protein metabolism in chronic kidney disease.
Main Methods:
- Review of existing literature on protein turnover and anabolic hormone therapy.
- Analysis of hormonal effects on protein metabolism, particularly in skeletal muscle.
- Clinical considerations for anabolic agent use in different patient populations.
Main Results:
- Anabolic hormones (growth hormone, androgenic steroids) stimulate protein turnover, especially in muscle.
- Therapies are safe and effective in normalizing depressed turnover in chronic diseases.
- Accelerating turnover may be inappropriate in critically ill patients with already high turnover rates.
Conclusions:
- Anabolic agents can normalize protein metabolism in stable, chronically uremic patients.
- Careful application is needed in advanced renal failure, particularly during infections.
- The therapeutic strategy for anabolic hormone use must be tailored to the specific protein turnover state of the patient.