Insulin sensitivity in moderately severe to acute severe ulcerative colitis

Area of Science:

• Gastroenterology
• Endocrinology
• Metabolic Research

Background:

• Hospitalized patients with moderately severe to severe ulcerative colitis (UC) may develop metabolic disturbances.
• Inflammation and glucocorticoid (GC) treatment are implicated in insulin resistance in UC patients.

Purpose of the Study:

• To evaluate insulin sensitivity in hospitalized patients with moderately severe to severe UC.
• To compare insulin sensitivity during active disease flares versus remission.

Main Methods:

• Pilot study involving patients hospitalized for moderately-severely active UC.
• Hyperinsulinemic euglycemic clamp (HEC) methodology used for insulin sensitivity quantification.
• Insulin sensitivity assessed during active flare and steroid-free remission, with comparison to healthy controls.

Main Results:

• All five participating UC patients showed significantly reduced insulin sensitivity during the active flare.
• Reduced insulin sensitivity persisted regardless of treatment outcome (infliximab or colectomy).
• Insulin sensitivity normalized to levels comparable to healthy controls upon achieving remission.

Conclusions:

• Patients with moderately severe to severe UC exhibit significant insulin resistance during active flares.
• Both inflammation and GC treatment likely contribute to insulin resistance in UC.
• Restoration of insulin sensitivity in remission suggests a reversible metabolic disturbance.