Related Experiment Videos
Sequential changes in body composition during infection: electron probe study IV
The American Journal of Clinical Nutrition
|September 1, 1977
Summary
Muscle electrolyte and water composition change during infection. Studies in monkeys revealed two patterns of muscle response, involving sodium-potassium exchange or cellular fluid and sodium increase, impacting potassium levels.
Area of Science:
- Biochemistry
- Physiology
- Infectious Disease
Background:
- Infection significantly alters human muscle electrolyte and water balance.
- Two primary mechanisms of muscle response to infection have been proposed.
- These involve shifts in sodium (Na), potassium (K), and water content.
Purpose of the Study:
- To investigate the specific mechanisms of muscle electrolyte and water alterations during infection.
- To analyze the patterns of muscle response using an experimental model.
Main Methods:
- Induction of Salmonella typhimurium sepsis in a monkey model.
- Utilizing electron probe microanalysis to assess muscle composition.
- Analyzing serum osmoles to understand cellular solute changes.
Main Results:
- Observed two distinct patterns of muscle response to sepsis.
- Demonstrated that potassium (K) loss is linked to intracellular saline accumulation, diluting K concentration.
- Identified increased undetermined serum osmoles, suggesting a role for intracellular organic osmoles.
Conclusions:
- Sepsis induces complex electrolyte and water shifts in muscle tissue.
- Intracellular fluid accumulation is a key factor in potassium dilution during infection.
- Further research is needed to elucidate the role of organic osmoles in these cellular changes.