• Users Online: 78
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Search Ahead of print Current issue Archives Submit article Instructions Subscribe Contacts Login 
Year : 2016  |  Volume : 28  |  Issue : 1  |  Page : 21-27

Utility of fecal calprotectin as a discriminative biomarker between ulcerative colitis and irritable bowel syndrome and its ability to be used for the assessment of the remission stage of ulcerative colitis

1 Department of Internal Medicine, Faculty of Medicine, Al-Azhar University, Damitta, Egypt
2 Department of Internal Medicine, Faculty of Medicine, Banha University, Banha, Egypt
3 Department of Tropical Medicine, Faculty of Medicine, Tanta University, Tanta, Egypt
4 Department of Clinical Pathology, Faculty of Medicine, Al-Minia University, Al-Minia, Egypt
5 Department of Pathology, Faculty of Medicine, Aligarh Muslim University, Aligarh, Egypt

Correspondence Address:
Hossam M Elsaadany
Lecturer of Internal Medicine, Fuculty of Medicine, Al-Azhar University, New Damitta
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1110-7782.182956

Rights and Permissions

Background and aim Fecal calprotectin (FC) has been proposed in recent studies as a sensitive, specific biomarker for the diagnosis of ulcerative colitis (UC). Hence, the present study sought to investigate the efficacy of FC for the diagnosis and monitoring of UC, as well as to assess the correlation of FC with other disease activity indexes. Research design and methods The present study included 96 consecutive patients who presented with lower gastrointestinal complaints. Patients were classified into two groups: group I (which included patients with UC) and group II (which included patients with irritable bowel syndrome); then, according to the disease activity, group I was subdivided into the following: group Ia (which included patients with active UC) and group Ib (which included only those patients of group Ia who were in the remission stage of UC). For all patients, erythrocyte sedimentation rate and C-reactive protein were determined; moreover, all patients underwent quantitative determination of calprotectin in stool samples, abdominal ultrasonography, and complete colonoscopy with biopsies for the histopathological examination to assess the disease severity by using the UC activity index according to the Mayo endoscopic and Geboes histological scores. The diagnostic validity of FC levels in correlation with Mayo Disease Activity Index (MDAI) was then investigated. Results FC levels showed highly significant increase in patients with active UC compared with inactive UC and irritable bowel syndrome (524.17 ± 48.0 vs. 184.48 ± 3.33 and 47.17 ± 5.32 mg/kg, respectively, P < 0.001). FC level has 100% accuracy, sensitivity, specificity, positive predictive value, and negative predictive value in distinguishing UC patients from the control group at a cutoff value of 140 mg/kg, but at a cutoff value of 223 mg/kg FC level shows 93.4% accuracy, 89.8% sensitivity, 97% specificity, 97.4% positive predictive value, and 55% negative predictive value to distinguish the active phase from the remission phase of UC. In addition, there was a statistically significant proportional correlation between FC and the MDAI, but the correlation between FC and histological inflammatory activity statistically was more significant than with MDAI (r = 0.75, P < 0.001). Conclusion FC level is an accurate, noninvasive biomarker in clinical practice with high specificity and sensitivity for the diagnosis and monitoring of UC, as well as good marker for the evaluation of disease activity. Therefore, it can be used as a monitoring test to assess medical response and to predict clinical relapse of the disease.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded196    
    Comments [Add]    

Recommend this journal