Abstract

Fecal calprotectin (FC) is a promising biomarker for diagnosis and treatment of inflammatory bowel disease, ulcerative colitis (UC), and Crohn’s disease. An enzyme immunoassay (EIA) is widely used for FC detection, though the considerable lag time, up to several days, causes clinical management delay. This study was performed to examine the new rapid kit fCAL-turbo, which is based on a particle-enhanced turbidimetric immunoassay (15 min), by comparing FC values with other EIAs (EliA, PhiCal, Bühlmann) and endoscopic scores. Using 94 samples, fCAL-turbo showed strong significant positive correlations with the other kits (Spearman’s r = 0.9178–0.9886). Of 74 UC patients, 69 underwent an endoscopy and fCAL-turbo reflected endoscopic activity with a moderate correlation with Mayo endoscopic subscore (MES) (r = 0.6945, others r = 0.6682–0.7013). Receiver operating characteristic analyses based on MES 0 versus 1–3 showed a similar efficacy as compared to the other kits (cut-off and area under the curve: 89.70 µg/g and 0.8592, respectively, others 62.35–138.4 µg/g and 0.8280–0.8611, respectively). Furthermore, multiple regression analysis confirmed that fCAL-turbo results significantly contributed to prediction of MES 0 with a higher t-value as compared to the other biomarkers. fCAL-turbo showed strong correlations with the other kits and also demonstrated excellent performance for predicting endoscopic remission of UC.

Details

Title
Validation of rapid fecal calprotectin assay using particle enhanced turbidimetric immunoassay for inflammatory bowel disease
Author
Oka, Akihiko 1 ; Kawashima, Kousaku 2 ; Kishimoto, Kenichi 1 ; Kotani, Satoshi 1 ; Fukunaga, Mai 1 ; Fukuba, Nobuhiko 1 ; Mishima, Yoshiyuki 1 ; Oshima, Naoki 1 ; Ishimura, Norihisa 1 ; Awoniyi, Muyiwa 3 ; Ishihara, Shunji 4 

 Shimane University Faculty of Medicine, Department of Internal Medicine II, Izumo, Japan (GRID:grid.411621.1) (ISNI:0000 0000 8661 1590) 
 Shimane University Faculty of Medicine, Department of Internal Medicine II, Izumo, Japan (GRID:grid.411621.1) (ISNI:0000 0000 8661 1590); Shimane University Hospital, Inflammatory Bowel Disease Center, Izumo, Japan (GRID:grid.412567.3); Matsue Seikyo General Hospital, Department of Internal Medicine, Matsue, Japan (GRID:grid.412567.3) 
 Cleveland Clinic Lerner Research Institute, Department of Inflammation and Immunity, Digestive Disease and Surgery Institute, Division of Gastroenterology, Hepatology and Nutrition, Cleveland, USA (GRID:grid.239578.2) (ISNI:0000 0001 0675 4725) 
 Shimane University Faculty of Medicine, Department of Internal Medicine II, Izumo, Japan (GRID:grid.411621.1) (ISNI:0000 0000 8661 1590); Shimane University Hospital, Inflammatory Bowel Disease Center, Izumo, Japan (GRID:grid.412567.3) 
Pages
1653
Publication year
2024
Publication date
2024
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2916280999
Copyright
© The Author(s) 2024. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.