INTERRELATION BETWEEN FECAL CALPROTECTIN LEVEL, SMALL INTESTINAL BACTERIAL OVERGROWTH AND HISTOLOGICAL MUCOSAL INFLAMMATION IN THE TERMINAL ILEUM IN IBS PATIENTS
Abstract
Aim. We aimed to determine possible interrelation between fecal calprotectin (FC) level, that small intestinal bacterial overgrowth (SIBO) and ileum mucosal inflammation in patients with irritable bowel syndrome (IBS). Methods. Based on Rome III criteria, 495 IBS patients (376 female, mean age 36,6±0,4 years) were included. All patients underwent FC levels, ileocolonoscopy with biopsies of the terminal ileum and H2 lactulose breath test to evaluate the presence of SIBO. Results. Among the 495 IBS patients 57% had reproducibly elevated calprotectin, including 17% with levels higher than 100 µg/g. SIBO was more frequent among IBS patients with elevated FC levels (>100 μg/g) than in those with normal FC levels (0-50μg/g) (77,1% vs 64,8%, р=0,011). We found a correlation between abnormal levels of FC and the presence of SIBO (Spearman r=0,153, p=0,001). Faecal calprotectin greater than 100 µg/g was predictive of ileum mucosal inflammation in IBS patients (OR6,19, 95%CI 3,99-9,61, р<0,0001). The abnormal calprotectin level was correlated with the grade ileum mucosal inflammation (Spearman r=0,399, p<0,0001). Conclusion. In IBS patients with SIBO the low-grade ileum mucosal inflammation was more frequent than in patients with IBS without SIBO (OR2.69, 95% CI 1.79-4.04, p <0.0001). Elevated FC levels (>100μg/g) were associated with low-grade ileum mucosal inflammation in IBS patients (OR6,19, 95%CI 3,99-9,61, р<0,0001).
About the Authors
S. A. Alexeenko
State educational government-financed institution of higher professional education “Far East state medical university”, Ministry of Healthcare of the Russian Federation
Russian Federation
Russian Federation
O. V. Krapivnaia
Non-government healthcare institution “Khabarovsk-1 Road clinical hospital, Open Society «Russian Railways»”
Russian Federation
Russian Federation
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Review
For citations:
Alexeenko S.A., Krapivnaia O.V. INTERRELATION BETWEEN FECAL CALPROTECTIN LEVEL, SMALL INTESTINAL BACTERIAL OVERGROWTH AND HISTOLOGICAL MUCOSAL INFLAMMATION IN THE TERMINAL ILEUM IN IBS PATIENTS. Experimental and Clinical Gastroenterology. 2018;(6):40-44. (In Russ.)
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