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Rapid changes in the serum total protein and globulin levels in complications caused by facultatively pathogenic
Insights
In septic shock, globulin levels rapidly decrease due to increased capillary permeability, not just protein loss. This impacts globulin transport to inflammatory sites during severe infections.
Area of Science:
- Biochemistry
- Immunology
- Critical Care Medicine
Background:
- Gram-negative bacterial infections can lead to severe complications like septic shock.
- Respiratory insufficiency is a common critical illness requiring intensive care.
- Globulin levels are important indicators of immune response and overall health.
Purpose of the Study:
- To investigate the changes in total protein and globulin fractions during infectious complications.
- To understand the underlying mechanisms causing globulin level fluctuations in critically ill patients.
- To correlate these changes with the severity of illness, particularly septic shock.
Main Methods:
- Studied 37 acute respiratory insufficiency patients and 9 chronic ventilated patients.
- Monitored total protein and four globulin fractions throughout infectious complications.
- Analyzed changes in globulin levels, focusing on the onset of septic shock.
Main Results:
- Globulin fractions significantly decreased with a half-life of 2-4 days at infection onset, especially in septic shock.
- Increased catabolism or urinary/tracheal protein loss did not fully explain the globulin decrease.
- Elevated capillary permeability, likely due to antigen-antibody reactions and endotoxins, is implicated.
Conclusions:
- Decreased globulin levels in severe infections are primarily due to increased capillary permeability.
- This permeability change hinders globulin transport to inflammatory sites during critical illness.
- Findings highlight the complex pathophysiology of septic shock and its impact on protein dynamics.
Abstract:
The changes in the levels of total protein and four globulin fractions were followed up throughout the entire course of complications caused by Gram-negative facultative pathogens in 37 acute cases of respiratory insufficiency accompanying different underlying illnesses and in 9 chronic, bedridden patients given artificial ventilation. At the onset of the infectious complications, in the first place in septic shock, the levels of various globulin fractions showed a decrease corresponding to a half-life of 2 to 4 days. Neither the increased catabolism, nor the protein losses by the urine and tracheal secretions offer a sufficient explanation for the escape of globulins of this extent from the plasma. It seems that this is a consequence of the increase in capillary permeability due to the effect of antigen-antibody reactions and that of endotoxin. As a result, in the critical phase of the infectious complications, at the point of culmination, e.g. in septic shock, diminished amount of different globulins is transported to the site of utilization, that is, to the inflammatory area.