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Relationship between circulating high density lipoprotein concentrations and interleukin-6 release during abdominal
1Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan.
The European Journal of Surgery = Acta Chirurgica
|June 23, 2001
Summary
High-density lipoprotein (HDL) levels impact interleukin-6 (IL-6) release during abdominal surgery. Lower HDL concentrations are linked to increased IL-6, suggesting HDL may mitigate endotoxin-induced inflammation.
Area of Science:
- Surgical Inflammation
- Lipid Metabolism
- Immunology
Background:
- Abdominal operations trigger inflammatory responses.
- High-density lipoprotein (HDL) plays a role in immune modulation.
- The relationship between HDL and surgical inflammation requires further investigation.
Purpose of the Study:
- To determine if circulating high-density lipoprotein (HDL) concentrations affect inflammatory cytokine release during abdominal operations.
- To explore the association between HDL levels and interleukin-6 (IL-6) during gastric cancer surgery.
Main Methods:
- Study conducted at a University Hospital in Japan.
- 30 patients undergoing curative gastric cancer surgery were analyzed.
- Serum HDL, cytokine concentrations, and endotoxin levels were measured preoperatively and during surgery.
Main Results:
- Patients with low HDL (< 0.9 mmol/L) exhibited significantly higher portal IL-6 levels compared to those with normal/high HDL (p < 0.01).
- An inverse correlation was observed between portal IL-6 concentrations and circulating HDL levels (r = -0.43, p < 0.05).
Conclusions:
- Serum HDL concentrations appear to influence IL-6 release following abdominal operations.
- Circulating HDL particles may play a protective role by reducing endotoxin-induced IL-6 release in humans.