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Anal Chim Acta

Title:		Comparative analysis of volatile organic compounds of breath and urine for distinguishing patients with liver cirrhosis from healthy controls by using electronic nose and voltammetric electronic tongue
Author(s):		Zaim O; Diouf A; El Bari N; Lagdali N; Benelbarhdadi I; Ajana FZ; Llobet E; Bouchikhi B;
Address:		"Sensor Electronic & Instrumentation Group, Department of Physics, Faculty of Sciences, Moulay Ismail University of Meknes, B.P. 11201, Zitoune, Meknes, Morocco; Biosensors and Nanotechnology Group, Department of Biology, Faculty of Sciences, Moulay Ismail University of Meknes, B.P. 11201, Zitoune, 50003, Meknes, Morocco. Biosensors and Nanotechnology Group, Department of Biology, Faculty of Sciences, Moulay Ismail University of Meknes, B.P. 11201, Zitoune, 50003, Meknes, Morocco. Mohammed V University, Ibn Sina Hospital, Department of Medical Gastroenterology C, Rabat, Morocco. Department of Electronic Engineering, Universitat Rovira I Virgili, MINOS-EMaS, Microsystems and Nanotechnologies for Chemical Analysis, Avinguda Paisos Catalans, 26, 43007, Tarragona, Spain. Sensor Electronic & Instrumentation Group, Department of Physics, Faculty of Sciences, Moulay Ismail University of Meknes, B.P. 11201, Zitoune, Meknes, Morocco. Electronic address: benachir.bouchikhi@gmail.com"
Journal Title:		Anal Chim Acta
Year:		2021
Volume:		20210903
Issue:
Page Number:		339028 -
DOI:		10.1016/j.aca.2021.339028
ISSN/ISBN:		1873-4324 (Electronic) 0003-2670 (Linking)
Abstract:		"Advanced stage detection of liver cirrhosis (LCi) would lead to high mortality rates in patients. Therefore, accurate and non-invasive tools for its early detection are highly needed using human emanations that may reflect this disease. Human breath, along with urine and blood, has long been one of the three main biological media for assessing human health and environmental exposure. The primary objective of this study was to explore the potential of using volatile organic compounds (VOCs) assay of exhaled breath and urine samples for the diagnosis of patients with LCi and healthy controls (HC). For this purpose, we used a hybrid electronic nose (E-nose) combining two sensor families, consisting of an array of five commercial chemical gas sensors and six interdigitated chemical gas sensors based on pristine or metal-doped WO(3) nanowires for sensing volatile gases in exhaled breath. A voltammetric electronic tongue (VE-tongue), composed of five working electrodes, was dedicated to the analysis of urinary VOCs using cyclic voltammetry as a measurement technique. 54 patients were recruited for this study, comprising 22 patients with LCi, and 32 HC. The two-sensing systems coupled with pattern recognition methods, namely Principal Component Analysis (PCA) and Discriminant Function Analysis (DFA), were trained to classify data clusters associated with the health status of the two groups. The diagnostic performances of the E-nose and VE-tongue systems were studied by using the receiver operating characteristic (ROC) method. The use of the E-nose or the VE-tongue separately, trained with these appropriate classifiers, showed a slight overlap indicating no clear discrimination between LCi patients and HC. To improve the performance of both electronic sensing devices, an emerging strategy, namely a multi-sensor data fusion technique, was proposed as a second aim to overcome this shortcoming. The data fusion approach of the two systems, at a medium level of abstraction, has demonstrated the ability to assess human health and disease status using non-invasive screening tools based on exhaled breath and urinary VOC analysis. This suggests that exhaled breath as well as urinary VOCs are specific to a disease state and could potentially be used as diagnostic methods"
Keywords:		Breath Tests Cross-Sectional Studies *Electronic Nose Humans Liver Cirrhosis *Volatile Organic Compounds Data fusion Electronic sensing system Exhaled breath analysis Urine analysis Volatile organic compounds;
Notes:		"MedlineZaim, Omar Diouf, Alassane El Bari, Nezha Lagdali, Naoual Benelbarhdadi, Imane Ajana, Fatima Zohra Llobet, Eduard Bouchikhi, Benachir eng Netherlands 2021/10/10 Anal Chim Acta. 2021 Nov 1; 1184:339028. doi: 10.1016/j.aca.2021.339028. Epub 2021 Sep 3"