Bone Marrow Adipokine Expression Was Associated With Decreased Erythroid Colony Growth After Trauma

Area of Science:

• Biomedical Science
• Physiology
• Immunology

Background:

• Adipokines, signaling molecules from fat tissue, are implicated in critical illness inflammation.
• Limited research exists on adipokine responses following traumatic injury.
• Systemic inflammation and erythroid suppression are potential consequences of trauma.

Purpose of the Study:

• To investigate the systemic release of adipokines after trauma.
• To determine the influence of trauma on adipokine transcription in bone marrow.
• To examine the relationship between adipokines and erythroid suppression post-trauma.

Main Methods:

• Collected blood and bone marrow samples from trauma patients (ISS > 15) and elective hip replacement controls.
• Measured plasma adipokine concentrations.
• Assayed bone marrow for adipokine transcription and erythroid progenitor growth potential.

Main Results:

• Trauma patients showed reduced adiponectin and increased leptin and resistin levels.
• Elevated visfatin transcription was observed in bone marrow of trauma patients.
• Adipokine transcription negatively correlated with erythroid progenitor growth potential.

Conclusions:

• Adipose tissue activity is associated with inflammatory responses after injury, with variations based on age and sex.
• Bone marrow adipose tissue may play a role in erythroid recovery following trauma.