• J. Int. Med. Res. · Aug 2013

    Faecal calprotectin concentrations in gastrointestinal diseases.

    • Shaodong Wang, Zhenkai Wang, Hui Shi, Lu Heng, Wei Juan, Boshi Yuan, Xiaochen Wu, and Fangyu Wang.
    • Department of Gastroenterology, Jingling Hospital, Nanjing, China.
    • J. Int. Med. Res. 2013 Aug 1; 41 (4): 1357-61.

    ObjectiveTo quantify faecal calprotectin concentrations in a variety of gastrointestinal disorders in order to determine its diagnostic value.MethodsPatients with gastrointestinal symptoms undergoing upper or lower endoscopy and healthy control subjects provided stool samples. Calprotectin was quantified by enzyme-linked immunosorbent assay.ResultsThe study recruited 210 patients with definitively diagnosed gastrointestinal diseases and 50 control subjects. Calprotectin concentrations were significantly higher in patients with ulcerative colitis or Crohn's disease compared with controls, or patients with colorectal polyps or irritable bowel syndrome. The faecal calprotectin concentration significantly differentiated between inflammatory bowel diseases (IBD) and non-IBD (area under ROC curve 0.949). Calprotectin concentrations were significantly higher in patients with oesophageal polyps or gastric neoplasms than in those with chronic gastritis, stomach ulcers, duodenal ulcers or acute pancreatitis.ConclusionCalprotectin may be a useful noninvasive marker for the diagnosis of IBD.

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