Open AccessUrine Cofilin-1 Detection for Predicting Type 1 Cardiorenal Syndrome in the Coronary Care Unit: A Gold Nanoparticle- and Laser-Based Approach
Author(s) -
Hsing-Yu Chen,
Chien Chou,
ChihHsiang Chang,
Nien-Gen Lee,
Pei-Chun Yu,
YuChi Chen,
HengChih Pan,
PeiChun Fan,
Chih-Wei Yang,
WenJin Cherng,
YungChang Chen
Publication year - 2018
Publication title -
cardiorenal medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.661
H-Index - 21
eISSN - 1664-3828
pISSN - 1664-5502
DOI - 10.1159/000490927
Subject(s) - medicine , urine , receiver operating characteristic , gold standard (test) , biomarker , coronary care unit , acute coronary syndrome , cofilin , gastroenterology , cardiology , myocardial infarction , actin cytoskeleton , biochemistry , chemistry , genetics , cytoskeleton , biology , cell
Background: Type 1 cardiorenal syndrome (CRS) is a severe complication for acute decompensated heart failure patients. This study aimed at evaluating the feasibility of using the gold nanoparticle-based localized surface plasmon-coupled fluorescence biosensor (LSPCFB) to detect urine cofilin-1 as a biomarker for predicting CRS among patients in the coronary care unit (CCU). Methods: A total of 44 patients were included with prospectively collected urine and blood samples. Both LSPCFB and conventional enzyme-linked immunosorbent assays (ELISAs) were used to measure urine cofilin-1 at admission to the CCU. The occurrence of CRS was judged within 7 days after admission. The discrimination presented as the area under the receiver operating characteristic curve (AUROC) and calibration of both detection methods were used to assess the predictive ability of urine cofilin-1 measured by the LSPCFB and ELISA. Results: Thirteen patients were diagnosed with CRS, while the other 31 patients were classified into a non-CRS group. For predicting CRS by measuring urine cofilin-1, the LSPCFB had higher accuracy (AUROC: 0.707, p = 0.031; overall accuracy: 79.55%) than the ELISA (AUROC: 0.479, p = 0.827; overall accuracy: 53.27%). The positive and negative predictive values of the LSPCFB were also higher than those of the ELISA (positive predictive value: 70.0 vs. 34.8%; negative predictive value: 82.4 vs. 76.2%). Conclusions: The gold nanoparticle-based immunoassay LSPCFB could exploit the potential of urine cofilin-1 as a single biomarker to predict CRS among CCU patients.