Effects of infliximab therapy on abdominal fat and metabolic profile in patients with Crohn's disease

Inflamm Bowel Dis. 2009 Oct;15(10):1476-84. doi: 10.1002/ibd.20931.


Background: Tumor necrosis factor is an adipocytokine possessing a well-established lipolytic effect. In Crohn's disease (CD) patients, infliximab therapy may thus result in visceral fat accumulation, which is associated with an increased risk of metabolic syndrome.

Methods: A total of 132 CD patients were investigated. In a first prospective study, magnetic resonance imaging (MRI) quantification of subcutaneous and visceral abdominal fat was performed before and 8 weeks after initiation of infliximab induction therapy (5 mg/kg at weeks 0, 2, and 6) in 21 responding patients treated for perianal disease. In a second prospective study, fasting glycemia, glycated hemoglobin (HbA1c), HDL, LDL, and total cholesterol and triglyceride levels were assessed in 111 responding patients receiving infliximab infusions every 8 weeks, with a mean follow-up of 41 weeks.

Results: A significant homogeneous 18% increase in total abdominal fat was observed in the 21 CD patients after infliximab induction therapy (P = 0.027), independently of body mass index evolution. Infliximab maintenance therapy was associated with a decrease in glycemia (P < 0.0001) and HbA1c (P = 0.0005) concentrations, together with an increase in both total cholesterol (P = 0.02) and HDL cholesterol (P = 0.008) concentrations. All glycemic and lipid parameters remained within the normal range throughout the study.

Conclusions: Infliximab induction therapy is associated with a significant increase in abdominal fat tissue in CD patients. Infliximab maintenance therapy has no deleterious effects on lipid profile and is accompanied by a decrease in glycemia and HbA1c concentrations, probably by reversing the impairment of tumor necrosis factor-induced insulin-mediated glucose uptake.

MeSH terms

  • Abdominal Fat / drug effects*
  • Adult
  • Anti-Inflammatory Agents / therapeutic use*
  • Antibodies, Monoclonal / therapeutic use*
  • Blood Glucose / metabolism
  • Cholesterol / metabolism
  • Colonoscopy
  • Crohn Disease / drug therapy*
  • Crohn Disease / metabolism*
  • Crohn Disease / pathology
  • Female
  • Follow-Up Studies
  • Glycated Hemoglobin A / metabolism
  • Humans
  • Hypoglycemic Agents / metabolism
  • Infliximab
  • Insulin / metabolism
  • Lipids / analysis
  • Magnetic Resonance Imaging
  • Male
  • Metabolome / drug effects*
  • Middle Aged
  • Prognosis
  • Prospective Studies
  • Treatment Outcome
  • Tumor Necrosis Factor-alpha / metabolism
  • Young Adult


  • Anti-Inflammatory Agents
  • Antibodies, Monoclonal
  • Blood Glucose
  • Glycated Hemoglobin A
  • Hypoglycemic Agents
  • Insulin
  • Lipids
  • Tumor Necrosis Factor-alpha
  • Cholesterol
  • Infliximab