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International Journal of Endocrinology
Volume 2018 (2018), Article ID 6712901, 5 pages
Research Article

Favorable Effect of Anti-TNF Therapy on Insulin Sensitivity in Nonobese, Nondiabetic Patients with Inflammatory Bowel Disease

1Department of Endocrinology and Diabetes, Hellenic Red Cross Hospital, Athens, Greece
2Department of Gastroenterology, Hellenic Red Cross Hospital, Athens, Greece

Correspondence should be addressed to Stavroula A. Paschou

Received 11 August 2017; Accepted 17 January 2018; Published 5 March 2018

Academic Editor: Claudio Casella

Copyright © 2018 Stavroula A. Paschou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. The aim of this study was to investigate the effect of anti-TNF therapy on glucose and lipid metabolism in nondiabetic, nonobese patients with inflammatory bowel disease (IBD). Patients and Methods. We studied 44 patients with IBD, without a known history of diabetes. Three of the patients were diagnosed with overt diabetes and were excluded. Eighteen of the remaining patients (9 M/9 F, 33.6 ± 8.8 years) were on anti-TNF therapy for longer than 1 year, while 23 patients (16 M/7 F, 38.7 ± 12.5 years) were treated with aminosalicylates (AMSs). Twelve of the patients from the second group were then treated with anti-TNF and reassessed 6 months later. Fasting glucose, insulin, c-peptide, HbA1c, lipid, CRP, and fibrinogen levels were determined, and HOMA-IR index was calculated in all patients. Results. Patients from the two therapy groups were matched for age and BMI and were not obese. We did not find any differences between patients from the two therapy groups regarding fasting glucose, c-peptide, HbA1c, total cholesterol, HDL, LDL, triglycerides, CRP, and HOMA-IR index. In patients who were treated for 6 months with anti-TNF, a statistically significant decrease in insulin (before 15.5 ± 5.9 versus after 9.9 ± 2.9 μIU/ml, ) and c-peptide (before 2.4 ± 1 versus after 1.3 ± 0.4 ng/ml, ) levels as well as the HOMA-IR index (before 4.2 ± 1.9 versus after 2.2 ± 0.9, ) was observed, without any changes in weight, BMI, glucose, HbA1c, lipid, CRP, and fibrinogen levels. Conclusion. Anti-TNF therapy exerts a favorable effect on insulin sensitivity, while it has no effect on lipid levels in nondiabetic, nonobese patients with inflammatory bowel disease.