Fecal and Serum Granulocyte Protein Levels in Inflammatory Bowel Disease and Irritable Bowel Syndrome and Their Relation to Disease Activity.

IF 3 3区 医学 Q2 GASTROENTEROLOGY & HEPATOLOGY
Helena Ekoff, Niclas Rydell, Per M Hellström, Robert Movérare
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引用次数: 0

Abstract

Introduction: Neutrophilic calprotectin (CP) and myeloperoxidase (MPO), neutrophil gelatinase-associated lipocalin (NGAL), and eosinophil-derived neurotoxin (EDN) are suggested proxy markers for gut inflammation. However, there are insufficient supporting data for MPO, NGAL, and EDN.

Methods: In a cross-sectional investigation including adult patients, we studied the ability of CP, MPO, NGAL, and EDN, measured in fecal and serum samples, to differentiate between inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS), and to predict disease activity.

Results: Fifty-nine patients had ulcerative colitis (UC), 38 had Crohn's disease, and 100 patients had IBS. The protein concentrations were higher in patients with IBD in the fecal samples ( P < 0.001) and the serum samples ( P < 0.01), and they correlated weakly (r s ≤0.38) between the sample sources. Fecal EDN was higher in patients with Crohn's disease compared with UC (1.79 vs 0.50 mg/kg, P = 0.016). The neutrophilic proteins were superior to EDN in the fecal samples for differentiating between patients with IBD and IBS. Fecal MPO (cutoff: 0.86 mg/kg) had the highest sensitivity (74.7%) and specificity (84.6%). Combining fecal CP and MPO increased the sensitivity to 82.3% (specificity: 73.6%). NGAL (cutoff: 196.9 μg/L) showed the best discriminating performance in serum (sensitivity: 62.9%; specificity: 68.0%). Serum NGAL (cutoff: 272.4 μg/L) predicted active disease in UC (Partial Mayo Score ≥2) with a sensitivity and specificity of 57.1% and 83.3%, respectively.

Discussion: Fecal MPO and serum NGAL are promising novel biomarkers, in addition to fecal CP, for differentiating between IBD and IBS. Serum NGAL may also predict disease activity in patients with UC.

炎症性肠病和肠易激综合征的粪便和血清粒细胞蛋白水平及其与疾病活动的关系。
导言:中性粒细胞钙蛋白(CP)和髓过氧化物酶(MPO)、中性粒细胞明胶酶相关脂褐质(NGAL)和嗜酸性粒细胞衍生神经毒素(EDN)被认为是肠道炎症的替代标记物。然而,MPO、NGAL 和 EDN 的支持数据并不充分:在一项包括成年患者在内的横断面调查中,我们研究了粪便和血清样本中测得的 CP、MPO、NGAL 和 EDN 在区分炎症性肠病(IBD)和肠易激综合征(IBS)以及预测疾病活动性方面的能力:59名患者患有溃疡性结肠炎(UC),38名患者患有克罗恩病(CD),100名患者患有肠易激综合征。在粪便样本中,IBD 患者的蛋白质浓度更高(p 结论:粪便 MPO 和血清凝乳酶原的浓度在 IBD 患者中更高:除粪便 CP 外,粪便 MPO 和血清 NGAL 是很有前途的新型生物标记物,可用于区分 IBD 和 IBS。血清 NGAL 还能预测 UC 患者的疾病活动性。
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来源期刊
Clinical and Translational Gastroenterology
Clinical and Translational Gastroenterology GASTROENTEROLOGY & HEPATOLOGY-
CiteScore
7.00
自引率
0.00%
发文量
114
审稿时长
16 weeks
期刊介绍: Clinical and Translational Gastroenterology (CTG), published on behalf of the American College of Gastroenterology (ACG), is a peer-reviewed open access online journal dedicated to innovative clinical work in the field of gastroenterology and hepatology. CTG hopes to fulfill an unmet need for clinicians and scientists by welcoming novel cohort studies, early-phase clinical trials, qualitative and quantitative epidemiologic research, hypothesis-generating research, studies of novel mechanisms and methodologies including public health interventions, and integration of approaches across organs and disciplines. CTG also welcomes hypothesis-generating small studies, methods papers, and translational research with clear applications to human physiology or disease. Colon and small bowel Endoscopy and novel diagnostics Esophagus Functional GI disorders Immunology of the GI tract Microbiology of the GI tract Inflammatory bowel disease Pancreas and biliary tract Liver Pathology Pediatrics Preventative medicine Nutrition/obesity Stomach.
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