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Gut Microbiota and Probiotics/Synbiotics for Modulation of Immunity in Critically Ill Patients
Kentaro Shimizu1, Masahiro Ojima1, Hiroshi Ogura1
1Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan.
Abstract:
Patients suffering from critical illness have host inflammatory responses against injuries, such as infection and trauma, that can lead to tissue damage, organ failure, and death. Modulation of host immune response as well as infection and damage control are detrimental factors in the management of systemic inflammation. The gut is the motor of multiple organ failure following injury, and it is recognized that gut dysfunction is one of the causative factors of disease progression. The gut microbiota has a role in maintaining host immunity, and disruption of the gut microbiota might induce an immunosuppressive condition in critically ill patients. Treatment with probiotics and synbiotics has been reported to attenuate systemic inflammation by maintaining gut microbiota and to reduce postoperative infectious complications and ventilator-associated pneumonia. The administration of prophylactic probiotics/synbiotics could be an important treatment option for preventing infectious complications and modulating immunity. Further basic and clinical research is needed to promote intestinal therapies for critically ill patients.
Insights
Probiotics and synbiotics may help critically ill patients by supporting gut microbiota, reducing inflammation, and preventing infections like pneumonia. Further research is needed to optimize these intestinal therapies.
Area of Science:
- Critical care medicine
- Immunology
- Microbiology
Background:
- Critically ill patients experience systemic inflammation due to injuries, potentially leading to organ failure.
- Gut dysfunction is a key factor in disease progression and organ failure in critical illness.
- The gut microbiota plays a crucial role in host immunity, and its disruption can lead to immunosuppression.
Purpose of the Study:
- To explore the role of probiotics and synbiotics in managing systemic inflammation in critically ill patients.
- To investigate the potential of these interventions in preventing infectious complications.
Main Methods:
- Review of existing literature on probiotics, synbiotics, and their effects in critical illness.
- Analysis of studies reporting on the modulation of gut microbiota and immune response.
Main Results:
- Probiotics and synbiotics may attenuate systemic inflammation by preserving gut microbiota integrity.
- These interventions have shown potential in reducing postoperative infections and ventilator-associated pneumonia.
Conclusions:
- Prophylactic administration of probiotics/synbiotics could be a valuable strategy for preventing infections and modulating immunity in critical care.
- Further clinical and basic research is necessary to establish intestinal therapies for critically ill patients.
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