Clinical Scorecard: The Role of Intestinal Lactate in the Renewal of Epithelial Cells During Sepsis
At a Glance
Category
Detail
Condition
Sepsis-induced acute gastrointestinal injury
Key Mechanisms
Sepsis induces metabolic reprogramming in intestinal epithelial cells leading to decreased intestinal lactate levels, which impairs intestinal stem cell proliferation and epithelial renewal
Target Population
Critically ill patients with sepsis, particularly those with gastrointestinal involvement
Care Setting
Intensive Care Unit (ICU) and critical care settings
Key Highlights
Sepsis causes decreased lactate levels in intestinal tissue but increased serum lactate levels, indicating metabolic reprogramming.
Lactate supplementation via gavage in septic mice improved intestinal epithelial renewal, increased villus length, and showed a trend toward improved survival.
Pyruvate dehydrogenase expression increases and lactate dehydrogenase decreases in intestinal tissue during sepsis, suggesting altered glucose metabolism.
Guideline-Based Recommendations
Diagnosis
Monitor lactate levels in serum and consider intestinal metabolic status in septic patients with gastrointestinal injury.
Management
Consider lactate supplementation as a potential therapeutic strategy to support intestinal epithelial renewal in sepsis, pending further research.
Monitoring & Follow-up
Assess intestinal function and epithelial integrity in septic patients, potentially via imaging or biomarkers reflecting epithelial renewal.
Risks
Current evidence is preliminary; lactate administration effects in non-septic patients and detailed mechanisms remain unclear.
Patient & Prescribing Data
Septic mice model (CLP-induced sepsis) used to study intestinal lactate effects
Lactate gavage for 7 days showed improved intestinal morphology and a trend toward increased survival, suggesting therapeutic potential.
Clinical Best Practices
Recognize the role of intestinal metabolic reprogramming in sepsis-related gastrointestinal injury.
Support further research into targeted lactate therapies to enhance intestinal epithelial renewal in septic patients.
Exercise caution in lactate supplementation until mechanisms and safety profiles are fully elucidated.
