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Chen X, Leishman M, Bagnall D, Nasiri N. Nanostructured Gas Sensors: From Air Quality and Environmental Monitoring to Healthcare and Medical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1927. [PMID: 34443755 PMCID: PMC8398721 DOI: 10.3390/nano11081927] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/19/2021] [Accepted: 07/21/2021] [Indexed: 12/26/2022]
Abstract
In the last decades, nanomaterials have emerged as multifunctional building blocks for the development of next generation sensing technologies for a wide range of industrial sectors including the food industry, environment monitoring, public security, and agricultural production. The use of advanced nanosensing technologies, particularly nanostructured metal-oxide gas sensors, is a promising technique for monitoring low concentrations of gases in complex gas mixtures. However, their poor conductivity and lack of selectivity at room temperature are key barriers to their practical implementation in real world applications. Here, we provide a review of the fundamental mechanisms that have been successfully implemented for reducing the operating temperature of nanostructured materials for low and room temperature gas sensing. The latest advances in the design of efficient architecture for the fabrication of highly performing nanostructured gas sensing technologies for environmental and health monitoring is reviewed in detail. This review is concluded by summarizing achievements and standing challenges with the aim to provide directions for future research in the design and development of low and room temperature nanostructured gas sensing technologies.
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Affiliation(s)
- Xiaohu Chen
- NanoTech Laboratory, School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, NSW 2109, Australia;
| | - Michelle Leishman
- Department of Biological Sciences, Macquarie University, Sydney, NSW 2109, Australia;
| | - Darren Bagnall
- School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, NSW 2109, Australia;
| | - Noushin Nasiri
- NanoTech Laboratory, School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney, NSW 2109, Australia;
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Govindan R, Banerjee P, Dhania NK, Senapati S. FTIR based approach to study EnaC mechanosensory functions. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2021; 167:79-86. [PMID: 34293339 DOI: 10.1016/j.pbiomolbio.2021.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 07/07/2021] [Accepted: 07/14/2021] [Indexed: 10/20/2022]
Abstract
The pulmonary epithelial sodium ion channel (ENaC) is gaining importance for its sodium gating and mechanosensitive roles. The mechano functional studies on ENaC suggest direct molecular interactions between the ENaC protein with cytoskeleton microtubules and other extracellular matrix components. Also, in few mechanotransduction studies, ENaC was shown to respond both to membrane stretch as well as cell volume changes. However, the conformational characteristic of ENaC during sodium and mechano gating are yet to be fully elucidated. Thus obtaining ENaC protein conformational spectrum based on Fourier Transform Infrared Radiation (FTIR) spectroscopy in solution will be useful in predicting the nature of conformational changes occurring during any cell volume changes in an epithelial cell. The conformational spectrum looks promising in studying the disease biology of cystic fibrosis (CF) and CF like conditions that arise due to abnormal ion conductance membrane proteins and subsequent frequent fluid retentions. This review article presents the basics of epithelial ENaC protein as a gated mechanosensor and FTIR for developing fluid dynamics of ENaC protein. This can be applied to develop an ENaC based quantum mechanosensor for the prognosis as well as diagnosis of cystic fibrosis (CF) and allied lung diseases.
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Affiliation(s)
- Rekha Govindan
- Department of Biochemistry, PM Sayeed Calicut University Centre, Andrott, Lakshadweep, 682551, India
| | - Pratibha Banerjee
- Department of Human Genetics & Molecular Medicine, Central University of Punjab, Bathinda, 151401, India
| | - Narender K Dhania
- Department of Human Genetics & Molecular Medicine, Central University of Punjab, Bathinda, 151401, India.
| | - Sabyasachi Senapati
- Department of Human Genetics & Molecular Medicine, Central University of Punjab, Bathinda, 151401, India
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Statistical Evaluation of Total Expiratory Breath Samples Collected throughout a Year: Reproducibility and Applicability toward Olfactory Sensor-Based Breath Diagnostics. SENSORS 2021; 21:s21144742. [PMID: 34300482 PMCID: PMC8309533 DOI: 10.3390/s21144742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 07/05/2021] [Accepted: 07/07/2021] [Indexed: 12/22/2022]
Abstract
The endogenous volatile organic compounds (VOCs) in exhaled breath can be promising biomarkers for various diseases including cancers. An olfactory sensor has a possibility for extracting a specific feature from collective variations of the related VOCs with a certain health condition. For this approach, it is important to establish a feasible protocol for sampling exhaled breath in practical conditions to provide reproducible signal features. Here we report a robust protocol for the breath analysis, focusing on total expiratory breath measured by a Membrane-type Surface stress Sensor (MSS), which possesses practical characteristics for artificial olfactory systems. To assess its reproducibility, 83 exhaled breath samples were collected from one subject throughout more than a year. It has been confirmed that the reduction of humidity effects on the sensing signals either by controlling the humidity of purging room air or by normalizing the signal intensities leads to reasonable reproducibility verified by statistical analyses. We have also demonstrated the applicability of the protocol for detecting a target material by discriminating exhaled breaths collected from different subjects with pre- and post-alcohol ingestion on different occasions. This simple yet reproducible protocol based on the total expiratory breath measured by the MSS olfactory sensors will contribute to exploring the possibilities of clinical applications of breath diagnostics.
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54
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Validation of breath biomarkers for obstructive sleep apnea. Sleep Med 2021; 85:75-86. [PMID: 34280868 DOI: 10.1016/j.sleep.2021.06.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 05/31/2021] [Accepted: 06/17/2021] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND OBJECTIVES Obstructive sleep apnea (OSA) is an underdiagnosed respiratory disease with negative metabolic and cardiovascular effects. The current gold standard for diagnosing OSA is in-hospital polysomnography, a time-consuming and costly procedure, often inconvenient for the patient. Recent studies revealed evidence for the potential of breath analysis for the diagnosis of OSA based on a disease-specific metabolic pattern. However, none of these findings were validated in a larger and broader cohort, an essential step for its application in clinics. METHODS In the present study, we validated a panel of breath biomarkers in a cohort of patients with possible OSA (N = 149). These markers were previously identified in our group by secondary electrospray ionization high-resolution mass spectrometry (SESI-HRMS). RESULTS Here, we could confirm significant differences between metabolic patterns in exhaled breath from OSA patients compared to control subjects without OSA as well as the association of breath biomarker levels with disease severity. Our prediction of the diagnosis for the patients from this completely independent validation study using a classification model trained on the data from the previous study resulted in an area under the receiver operating characteristic curve of 0.66, which is comparable to questionnaire-based OSA screenings. CONCLUSIONS Thus, our results suggest that breath analysis by SESI-HRMS might be useful to screen for OSA as an objective measure. However, its true predictive power should be tested in combination with OSA screening questionnaires. CLINICAL TRIAL "Mass Spectral Fingerprinting in Obstructive Sleep Apnoea", NCT02810158, www.ClinicalTrials.gov.
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55
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van Oort PM, Nijsen TM, White IR, Knobel HH, Felton T, Rattray N, Lawal O, Bulut M, Ahmed W, Artigas A, Povoa PR, Martin-Loeches I, Weda H, Goodacre R, Schultz MJ, Dark PM, Fowler SJ, Bos LD. Untargeted Molecular Analysis of Exhaled Breath as a Diagnostic Test for Ventilator-Associated Lower Respiratory Tract Infections (BreathDx). Thorax 2021; 77:79-81. [PMID: 34088787 PMCID: PMC8685633 DOI: 10.1136/thoraxjnl-2021-217362] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 05/11/2021] [Indexed: 11/23/2022]
Abstract
Patients suspected of ventilator-associated lower respiratory tract infections (VA-LRTIs) commonly receive broad-spectrum antimicrobial therapy unnecessarily. We tested whether exhaled breath analysis can discriminate between patients suspected of VA-LRTI with confirmed infection, from patients with negative cultures. Breath from 108 patients suspected of VA-LRTI was analysed by gas chromatography-mass spectrometry. The breath test had a sensitivity of 98% at a specificity of 49%, confirmed with a second analytical method. The breath test had a negative predictive value of 96% and excluded pneumonia in half of the patients with negative cultures. Trial registration number: UKCRN ID number 19086, registered May 2015.
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Affiliation(s)
| | | | - Iain R White
- Laboratory for Environmental and Life Sciences, University of Nova Gorica, Nova Gorica, Slovenia.,Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, UK
| | - Hugo H Knobel
- Materials Analysis, Eurofins Materials Science Netherlands BV, Eindhoven, The Netherlands
| | - Timothy Felton
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, UK
| | | | - Oluwasola Lawal
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester, UK
| | | | - Waqar Ahmed
- Manchester Institute of Biotechnology, University of Manchester, Manchester, UK
| | - Antonio Artigas
- Critical Care Centre, Corporació Sanitària I Universitaria Parc Taulí-Hospital De Sabadell-Ciber Enfermedades Respiratorias, Sabadell, Barcelona, Spain
| | - Pedro R Povoa
- Intensive Care, Centro Hospitalar de Lisboa Central, Lisbon, Portugal
| | | | | | - Royston Goodacre
- Department of Biochemistry, University of Liverpool, Liverpool, UK
| | - Marcus J Schultz
- Intensive Care, Amsterdam UMC Location AMC, Amsterdam, The Netherlands.,Mahidol-Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok, Thailand
| | - Paul M Dark
- Intensive care, University of Manchester, Manchester, UK
| | - Stephen J Fowler
- Manchester University NHS Foundation Trust - Wythenshawe Hospital, Manchester, UK.,Division of Infection, Immunity and Respiratory Medicine, NIHR's Manchester Biomedical Research Centre (BRC), the University of Manchester, Manchester, UK
| | - Lieuwe D Bos
- Intensive Care, Amsterdam UMC Location AMC, Amsterdam, The Netherlands .,Respiratory Medicine, Amsterdam UMC Location AMC, Amsterdam, Netherlands
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Sola Martínez RA, Pastor Hernández JM, Yanes Torrado Ó, Cánovas Díaz M, de Diego Puente T, Vinaixa Crevillent M. Exhaled volatile organic compounds analysis in clinical pediatrics: a systematic review. Pediatr Res 2021; 89:1352-1363. [PMID: 32919397 DOI: 10.1038/s41390-020-01116-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 07/09/2020] [Accepted: 08/04/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Measured exhaled volatile organic compounds (VOCs) in breath also referred to as exhaled volatilome have been long claimed as a potential source of non-invasive and clinically applicable biomarkers. However, the feasibility of using exhaled volatilome in clinical practice remains to be demonstrated, particularly in pediatrics where the need for improved non-invasive diagnostic and monitoring methods is most urgent. This work presents the first formal evidence-based judgment of the clinical potential of breath volatilome in the pediatric population. METHODS A rigorous systematic review across Web of Science, SCOPUS, and PubMed databases following the PRISMA statement guidelines. A narrative synthesis of the evidence was conducted and QUADAS-2 was used to assess the quality of selected studies. RESULTS Two independent reviewers deemed 22 out of the 229 records initially found to satisfy inclusion criteria. A summary of breath VOCs found to be relevant for several respiratory, infectious, and metabolic pathologies was conducted. In addition, we assessed their associated metabolism coverage through a functional characterization analysis. CONCLUSION Our results indicate that current research remains stagnant in a preclinical exploratory setting. Designing exploratory experiments in compliance with metabolomics practice should drive forward the clinical translation of VOCs breath analysis. IMPACT What is the key message of your article? Metabolomics practice could help to achieve the clinical utility of exhaled volatilome analysis. What does it add to the existing literature? This work is the first systematic review focused on disease status discrimination using analysis of exhaled breath in the pediatric population. A summary of the reported exhaled volatile organic compounds is conducted together with a functional characterization analysis. What is the impact? Having noted challenges preventing the clinical translation, we summary metabolomics practices and the experimental designs that are closer to clinical practice to create a framework to guide future trials.
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Affiliation(s)
- Rosa A Sola Martínez
- Department of Biochemistry and Molecular Biology (B) and Immunology, University of Murcia and Murcian Institute of Biosanitary Research Virgen de la Arrixaca (IMIB), Murcia, Spain
| | - José M Pastor Hernández
- Department of Biochemistry and Molecular Biology (B) and Immunology, University of Murcia and Murcian Institute of Biosanitary Research Virgen de la Arrixaca (IMIB), Murcia, Spain
| | - Óscar Yanes Torrado
- Department of Electronic Engineering, Universitat Rovira i Virgili, Tarragona, Spain.,Institut d'Investigació Sanitària Pere Virgili (IISPV), Metabolomics Platform, Reus, Spain.,CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Manuel Cánovas Díaz
- Department of Biochemistry and Molecular Biology (B) and Immunology, University of Murcia and Murcian Institute of Biosanitary Research Virgen de la Arrixaca (IMIB), Murcia, Spain
| | - Teresa de Diego Puente
- Department of Biochemistry and Molecular Biology (B) and Immunology, University of Murcia and Murcian Institute of Biosanitary Research Virgen de la Arrixaca (IMIB), Murcia, Spain.
| | - María Vinaixa Crevillent
- Department of Electronic Engineering, Universitat Rovira i Virgili, Tarragona, Spain.,Institut d'Investigació Sanitària Pere Virgili (IISPV), Metabolomics Platform, Reus, Spain.,CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
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Jung YJ, Seo HS, Kim JH, Song KY, Park CH, Lee HH. Advanced Diagnostic Technology of Volatile Organic Compounds Real Time analysis Analysis From Exhaled Breath of Gastric Cancer Patients Using Proton-Transfer-Reaction Time-of-Flight Mass Spectrometry. Front Oncol 2021; 11:560591. [PMID: 33996531 PMCID: PMC8116791 DOI: 10.3389/fonc.2021.560591] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 04/06/2021] [Indexed: 02/01/2023] Open
Abstract
Background Screening endoscopy is considered to be the most accurate tool for early detection of gastric cancer, but it is both invasive and costly. It is therefore essential to develop cost-effective and non-invasive diagnostic tools for gastric cancer. The aim of this study is to investigate the presence of certain volatile organic compounds (VOCs) associated with gastric cancer and to survey the usefulness of VOCs as screening tools of gastric cancer. Methods The present study was conducted prospectively to identify the relationship between gastric cancer and specific VOCs quantified by mass spectrometry. Exhaled breath samples from a total of 43 participants were analysed. This study was approved by the Institutional Review Board of the College of Medicine, Catholic University of Korea (KC16TISI0598), and registered to clinical research information service (KCT0004356). Results Nine VOCs differed significantly between the control and cancer patient groups. When participants were divided into control, early gastric cancer (EGC), and advanced gastric cancer (AGC) groups, seven VOCs remained significantly different. Of these, four (propanal, aceticamide, isoprene and 1,3 propanediol) showed gradual increases as cancer advanced, from normal control to EGC to AGC. In receiver operating characteristic curves for these four VOCs, the area under the curve for gastric cancer prediction was highest (0.842) when more than two VOCs were present. Conclusions The present study offers potential directions for non-invasive gastric cancer screening, and may inspire advanced diagnostic technologies in the era of smart home healthcare. However, despite the high accuracy, cancer-specific VOCs from several studies on different populations, and analytic methods show inconsistency, it is necessary to establish standards for each analytical method, and to validate on each population.
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Affiliation(s)
- Yoon Ju Jung
- Division of Gastrointestinal Surgery, Department of Surgery, Catholic Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Ho Seok Seo
- Division of Gastrointestinal Surgery, Department of Surgery, Catholic Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Ji Hyun Kim
- Division of Gastrointestinal Surgery, Department of Surgery, Catholic Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Kyo Young Song
- Division of Gastrointestinal Surgery, Department of Surgery, Catholic Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Cho Hyun Park
- Division of Gastrointestinal Surgery, Department of Surgery, Catholic Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Han Hong Lee
- Division of Gastrointestinal Surgery, Department of Surgery, Catholic Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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Sharma R, Zang W, Zhou M, Schafer N, Begley LA, Huang YJ, Fan X. Real Time Breath Analysis Using Portable Gas Chromatography for Adult Asthma Phenotypes. Metabolites 2021; 11:265. [PMID: 33922762 PMCID: PMC8145057 DOI: 10.3390/metabo11050265] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 11/24/2022] Open
Abstract
Asthma is heterogeneous but accessible biomarkers to distinguish relevant phenotypes remain lacking, particularly in non-Type 2 (T2)-high asthma. Moreover, common clinical characteristics in both T2-high and T2-low asthma (e.g., atopy, obesity, inhaled steroid use) may confound interpretation of putative biomarkers and of underlying biology. This study aimed to identify volatile organic compounds (VOCs) in exhaled breath that distinguish not only asthmatic and non-asthmatic subjects, but also atopic non-asthmatic controls and also by variables that reflect clinical differences among asthmatic adults. A total of 73 participants (30 asthma, eight atopic non-asthma, and 35 non-asthma/non-atopic subjects) were recruited for this pilot study. A total of 79 breath samples were analyzed in real-time using an automated portable gas chromatography (GC) device developed in-house. GC-mass spectrometry was also used to identify the VOCs in breath. Machine learning, linear discriminant analysis, and principal component analysis were used to identify the biomarkers. Our results show that the portable GC was able to complete breath analysis in 30 min. A set of nine biomarkers distinguished asthma and non-asthma/non-atopic subjects, while sets of two and of four biomarkers, respectively, further distinguished asthmatic from atopic controls, and between atopic and non-atopic controls. Additional unique biomarkers were identified that discriminate subjects by blood eosinophil levels, obese status, inhaled corticosteroid treatment, and also acute upper respiratory illnesses within asthmatic groups. Our work demonstrates that breath VOC profiling can be a clinically accessible tool for asthma diagnosis and phenotyping. A portable GC system is a viable option for rapid assessment in asthma.
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Affiliation(s)
- Ruchi Sharma
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; (R.S.); (W.Z.); (M.Z.)
| | - Wenzhe Zang
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; (R.S.); (W.Z.); (M.Z.)
| | - Menglian Zhou
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; (R.S.); (W.Z.); (M.Z.)
| | - Nicole Schafer
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA; (N.S.); (L.A.B.)
| | - Lesa A. Begley
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA; (N.S.); (L.A.B.)
| | - Yvonne J. Huang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA; (N.S.); (L.A.B.)
| | - Xudong Fan
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; (R.S.); (W.Z.); (M.Z.)
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Abstract
Colorimetric sensing technologies have been widely used for both quantitative detection of specific analyte and recognition of a large set of analytes in gas phase, ranging from environmental chemicals to biomarkers in breath. However, the accuracy and reliability of the colorimetric gas sensors are threatened by the humidity interference in different application scenarios. Though substantial progress has been made toward new colorimetric sensors development, unless the humidity interference is well addressed, the colorimetric sensors cannot be deployed for real-world applications. Although there are comprehensive and insightful review articles about the colorimetric gas sensors, they have focused more on the progress in new sensing materials, new sensing systems, and new applications. There is a need for reviewing the works that have been done to solve the humidity issue, a challenge that the colorimetric gas sensors commonly face. In this review paper, we analyzed the mechanisms of the humidity interference and discussed the approaches that have been reported to mitigate the humidity interference in colorimetric sensing of environmental gases and breath biomarkers. Finally, the future perspectives of colorimetric sensing technologies are also discussed.
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Affiliation(s)
- Jingjing Yu
- Center for Bioelectronics and Biosensors, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Di Wang
- Center for Bioelectronics and Biosensors, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Vishal Varun Tipparaju
- Center for Bioelectronics and Biosensors, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Francis Tsow
- Center for Bioelectronics and Biosensors, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Xiaojun Xian
- Center for Bioelectronics and Biosensors, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
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Long Y, Wang C, Wang T, Li W, Dai W, Xie S, Tian Y, Liu M, Liu Y, Peng X, Liu Y, Zhang Y, Wang R, Li Q, Duan Y. High performance exhaled breath biomarkers for diagnosis of lung cancer and potential biomarkers for classification of lung cancer. J Breath Res 2021; 15:016017. [PMID: 33586667 DOI: 10.1088/1752-7163/abaecb] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Exhaled breath analysis has emerged as a promising non-invasive method for diagnosing lung cancer (LC), whereas reliable biomarkers are lacking. Herein, a standardized and systematic study was presented for LC diagnosis, classification and metabolism exploration. To improve the reliability of biomarkers, a validation group was included, and quality control for breath sampling and analysis, comprehensive pollutants analysis, and strict biomarker screening were performed. The performance of exhaled breath biomarkers was shown to be excellent in diagnosing LC even in early stages (stage I and II) with surpassing 0.930 area under the receiver operating characteristic (ROC) curve (AUC), 90% of sensitivity and 88% of specificity both in the discovery and validation analyses. Meanwhile, in these two groups, diagnosing subtypes of LC attained AUCs over 0.930 and reached 1.00 in the two subtypes of adenocarcinomas. It is demonstrated that the metabolism changes in LC are possibly related to lipid oxidation, gut microbial, cytochrome P450 and glutathione S-transferase, and glutathione pathways change in LC progression. Overall, the reliable biomarkers contribute to the clinical application of breath analysis in screening LC patients as well as those in early stages.
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Affiliation(s)
- Yijing Long
- Research Center of Analytical Instrumentation, Key Laboratory of Bio-source and Eco-environment, Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, People's Republic of China
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Mule NM, Patil DD, Kaur M. A comprehensive survey on investigation techniques of exhaled breath (EB) for diagnosis of diseases in human body. INFORMATICS IN MEDICINE UNLOCKED 2021. [DOI: 10.1016/j.imu.2021.100715] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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Data preprocessing workflow for exhaled breath analysis by GC/MS using open sources. Sci Rep 2020; 10:22008. [PMID: 33319832 PMCID: PMC7738550 DOI: 10.1038/s41598-020-79014-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 12/03/2020] [Indexed: 12/24/2022] Open
Abstract
The noninvasive diagnosis and monitoring of high prevalence diseases such as cardiovascular diseases, cancers and chronic respiratory diseases are currently priority objectives in the area of health. In this regard, the analysis of volatile organic compounds (VOCs) has been identified as a potential noninvasive tool for the diagnosis and surveillance of several diseases. Despite the advantages of this strategy, it is not yet a routine clinical tool. The lack of reproducible protocols for each step of the biomarker discovery phase is an obstacle of the current state. Specifically, this issue is present at the data preprocessing step. Thus, an open source workflow for preprocessing the data obtained by the analysis of exhaled breath samples using gas chromatography coupled with single quadrupole mass spectrometry (GC/MS) is presented in this paper. This workflow is based on the connection of two approaches to transform raw data into a useful matrix for statistical analysis. Moreover, this workflow includes matching compounds from breath samples with a spectral library. Three free packages (xcms, cliqueMS and eRah) written in the language R are used for this purpose. Furthermore, this paper presents a suitable protocol for exhaled breath sample collection from infants under 2 years of age for GC/MS.
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Bellagambi FG, Lomonaco T, Ghimenti S, Biagini D, Fuoco R, Di Francesco F. Determination of peppermint compounds in breath by needle trap micro-extraction coupled with gas chromatography-tandem mass spectrometry. J Breath Res 2020; 15. [PMID: 33238253 DOI: 10.1088/1752-7163/abcdec] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 11/25/2020] [Indexed: 01/26/2023]
Abstract
Breath analysis is an alternative approach for disease diagnosis and for monitoring therapy. The lack of standardized procedures for collecting and analysing breath samples currently limits its use in clinical practice. In order to overcome this limitation, the "Peppermint Consortium" was established within the breath community to carry out breath wash-out experiments and define reference values for a panel of compounds contained in the peppermint oil capsule. Here, we present a needle trap micro-extraction technique coupled with gas chromatography and tandem mass spectrometry for a rapid and accurate determination of alpha-pinene, beta-pinene, limonene, eucalyptol, menthofuran, menthone, menthol and menthyl acetate in mixed breath samples. Detection limits between 1 and 20 pptv were observed when 25 mL of a humidified standard gas mixture were loaded into a needle trap device at a flow rate of 10 mL/min. Inter- and intra-day precisions were lower than 15%, thus confirming the reliability of the assay. Our procedure was used to analyse breath samples taken from a nominally healthy volunteer who were invited to swallow a 200 mg capsule of peppermint oil. Six samples were collected at various times within six hours of ingestion. Analyte concentrations were not affected by the sampling mode (i.e. mixed vs. end-tidal fraction), whereas respiratory rate and exhalation flow rate values slightly influenced the concentration of the target compounds in breath samples.
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Affiliation(s)
- Francesca G Bellagambi
- Institut des Sciences Analytiques, Université Claude Bernard Lyon 1, 5, rue de la Doua, Villeurbanne, FRANCE, 69100, FRANCE
| | - Tommaso Lomonaco
- Department of Chemistry and Industrial Chemistry, Universita degli Studi di Pisa Dipartimento di Chimica e Chimica Industriale, Via G. Moruzzi, 13, Pisa, Tuscany, 56124, ITALY
| | - Silvia Ghimenti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Toscana, ITALY
| | - Denise Biagini
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Toscana, ITALY
| | - Roger Fuoco
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Toscana, ITALY
| | - Fabio Di Francesco
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Toscana, ITALY
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Aasi A, Aghaei SM, Panchapakesan B. A density functional theory study on the interaction of toluene with transition metal decorated carbon nanotubes: a promising platform for early detection of lung cancer from human breath. NANOTECHNOLOGY 2020; 31:415707. [PMID: 32554899 DOI: 10.1088/1361-6528/ab9da9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
In this study, single-wall carbon nanotubes (SWCNTs) decorated by platinum-group transition metals (Pt, Pd, Rh, or Ru) were introduced as promising nanosensors for the detection of toluene, an important biomarker in the exhaled breath of the lung cancer patients. First-principle calculations based on density functional theory (DFT) was employed to scrutinize the impact of an individual toluene gas molecule on the structural, electronic, and magnetic properties of pristine and metal decorated SWCNTs. It was discovered that toluene is physisorbed on the pristine SWCNT through the interaction of the π orbitals of the carbon atoms in the toluene and the nanotube. Decoration of the SWCNT with metal atoms enhanced the adsorption energies significantly by means of strong overlapping between d orbital of the metal atoms and p orbital of C atoms in the benzene ring of toluene. Investigations showed that toluene is strongly chemisorbed on Rh- and Ru-SWCNT systems via strong covalent bonds with the superior response (-96.98% and -99.98%, respectively), and moderately chemisorbed on Pt-SWCNTs (-27.3%) and Pd-SWCNTs (61.60%). Our findings propose metal decorated SWCNT molecular sensors are attractive candidates for the detection of toluene and other lung cancer biomarkers in the exhaled breath of the lung cancer patients.
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Affiliation(s)
- A Aasi
- Small Systems Laboratory, Department of Mechanical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts 01609, United States of America
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65
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Fielding D, Hartel G, Pass D, Davis M, Brown M, Dent A, Agnew J, Dickie G, Ware RS, Hodge R. Volatile organic compound breath testing detects in-situ squamous cell carcinoma of bronchial and laryngeal regions and shows distinct profiles of each tumour. J Breath Res 2020; 14:046013. [PMID: 33021204 DOI: 10.1088/1752-7163/abb18a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Volatile organic compound (VOC) breath testing of lung and head and neck squamous cell carcinoma (SCC) has been widely studied, however little is known regarding VOC profiles of in-situ SCC. A prospective study of VOC in patients with histologically proven SCC, either in-situ or advanced, and controls. Breath samples were analysed using the E-nose Cyranose ®320 and by gas chromatography/mass spectroscopy. Predictive models were developed using bootstrap forest using all 32 sensors. Data from 55 participants was analysed: 42 SCC cases comprising 20 bronchial (10 in-situ, 10 advanced) and 22 laryngeal (12 in-situ, 10 advanced), and 13 controls. There were 32 (76%) male SCC cases with mean age 63.6 (SD = 9.5) compared with 11 (85%) male controls with mean age 61.9 (SD = 10.1). Predictive models for in situ cases had good sensitivity and specificity compared to controls (overall, 95% and 69%; laryngeal, 100% and 85%; bronchial, 77% and 80%). When distinguishing in-situ and advanced tumours, sensitivity and specificity 82% and 75% respectively. For different tumour types (bronchial versus advanced laryngeal) sensitivity and specificity were 100% and 80% respectively. VOCs isolated from in-situ cancers included some previously demonstrated in advanced cancers and some novel VOCs. In-situ bronchial and laryngeal cancer can be detected by VOC analysis. Distinction from normal controls and between the two tumour types could allow screening in high risk groups for these curable lesions.
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Affiliation(s)
- David Fielding
- Department of Thoracic Medicine, Royal Brisbane and Women's Hospital, Brisbane, Australia
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66
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BALSAM-An Interactive Online Platform for Breath Analysis, Visualization and Classification. Metabolites 2020; 10:metabo10100393. [PMID: 33023186 PMCID: PMC7601018 DOI: 10.3390/metabo10100393] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/28/2020] [Accepted: 09/30/2020] [Indexed: 01/22/2023] Open
Abstract
The field of breath analysis lacks a fully automated analysis platform that enforces machine learning good practice and enables clinicians and clinical researchers to rapidly and reproducibly discover metabolite patterns in diseases. We present BALSAM-a comprehensive web-platform to simplify and automate this process, offering features for preprocessing, peak detection, feature extraction, visualization and pattern discovery. Our main focus is on data from multi-capillary-column ion-mobility-spectrometry. While not limited to breath data, BALSAM was developed to increase consistency and robustness in the data analysis process of breath samples, aiming to expand the array of low cost molecular diagnostics in clinics. Our platform is freely available as a web-service and in form of a publicly available docker container.
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67
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A Review of GC-Based Analysis of Non-Invasive Biomarkers of Colorectal Cancer and Related Pathways. J Clin Med 2020; 9:jcm9103191. [PMID: 33019642 PMCID: PMC7601558 DOI: 10.3390/jcm9103191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 09/27/2020] [Accepted: 09/30/2020] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is the third most commonly diagnosed cancer in the world. In Europe, it is the second most common cause of cancer-related deaths. With the advent of metabolomics approaches, studies regarding the investigation of metabolite profiles related to CRC have been conducted, aiming to serve as a tool for early diagnosis. In order to provide further information about the current status of this field of research, 21 studies were systematically reviewed, regarding their main findings and analytical aspects. A special focus was given to the employment of matrices obtained non-invasively and the use of gas chromatography as the analytical platform. The relationship between the reported volatile and non-volatile biomarkers and CRC-related metabolic alterations was also explored, demonstrating that many of these metabolites are connected with biochemical pathways proven to be involved in carcinogenesis. The most commonly reported CRC indicators were hydrocarbons, aldehydes, amino acids and short-chain fatty acids. These potential biomarkers can be associated with both human and bacterial pathways and the analysis based on such species has the potential to be applied in the clinical practice as a low-cost screening method.
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Chan LW, Anahtar MN, Ong TH, Hern KE, Kunz RR, Bhatia SN. Engineering synthetic breath biomarkers for respiratory disease. NATURE NANOTECHNOLOGY 2020; 15:792-800. [PMID: 32690884 PMCID: PMC8173716 DOI: 10.1038/s41565-020-0723-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 06/02/2020] [Indexed: 05/10/2023]
Abstract
Human breath contains many volatile metabolites. However, few breath tests are currently used in the clinic to monitor disease due to bottlenecks in biomarker identification. Here we engineered breath biomarkers for respiratory disease by local delivery of protease-sensing nanoparticles to the lungs. The nanosensors shed volatile reporters upon cleavage by neutrophil elastase, an inflammation-associated protease with elevated activity in lung diseases such as bacterial infection and alpha-1 antitrypsin deficiency. After intrapulmonary delivery into mouse models with acute lung inflammation, the volatile reporters are released and expelled in breath at levels detectable by mass spectrometry. These breath signals can identify diseased mice with high sensitivity as early as 10 min after nanosensor administration. Using these nanosensors, we performed serial breath tests to monitor dynamic changes in neutrophil elastase activity during lung infection and to assess the efficacy of a protease inhibitor therapy targeting neutrophil elastase for the treatment of alpha-1 antitrypsin deficiency.
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Affiliation(s)
- Leslie W Chan
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Melodi N Anahtar
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Harvard-MIT Division of Health Sciences and Technology, Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Ta-Hsuan Ong
- Biological and Chemical Technologies Group, Massachusetts Institute of Technology Lincoln Laboratory, Lexington, MA, USA
| | - Kelsey E Hern
- Harvard-MIT Division of Health Sciences and Technology, Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Roderick R Kunz
- Biological and Chemical Technologies Group, Massachusetts Institute of Technology Lincoln Laboratory, Lexington, MA, USA
| | - Sangeeta N Bhatia
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Harvard-MIT Division of Health Sciences and Technology, Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Broad Institute, Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA.
- Howard Hughes Medical Institute, Cambridge, MA, USA.
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69
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Noelle A, Vandaele AC, Martin-Torres J, Yuan C, Rajasekhar BN, Fahr A, Hartmann GK, Lary D, Lee YP, Limão-Vieira P, Locht R, McNeill K, Orlando JJ, Salama F, Wayne RP. UV/Vis + photochemistry database: Structure, content and applications. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 2020; 253:10.1016/j.jqsrt.2020.107056. [PMID: 34121770 PMCID: PMC8193824 DOI: 10.1016/j.jqsrt.2020.107056] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The "science-softCon UV/Vis+ Photochemistry Database" (www.photochemistry.org) is a large and comprehensive collection of EUV-VUV-UV-Vis-NIR spectral data and other photochemical information assembled from published peer-reviewed papers. The database contains photochemical data including absorption, fluorescence, photoelectron, and circular and linear dichroism spectra, as well as quantum yields and photolysis related data that are critically needed in many scientific disciplines. This manuscript gives an outline regarding the structure and content of the "science-softCon UV/Vis+ Photochemistry Database". The accurate and reliable molecular level information provided in this database is fundamental in nature and helps in proceeding further to understand photon, electron and ion induced chemistry of molecules of interest not only in spectroscopy, astrochemistry, astrophysics, Earth and planetary sciences, environmental chemistry, plasma physics, combustion chemistry but also in applied fields such as medical diagnostics, pharmaceutical sciences, biochemistry, agriculture, and catalysis. In order to illustrate this, we illustrate the use of the UV/Vis+ Photochemistry Database in four different fields of scientific endeavor.
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Affiliation(s)
| | - Ann Carine Vandaele
- Planetary Aeronomy Division, BIRA-IASB, 3 av. Circulaire, B-1180 Brussels, Belgium
| | - Javier Martin-Torres
- Department of Computer Science, Electrical and Space Engineering, Luleå University of Technology, 97187 Luleå, Sweden
- Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Av. de las Palmeras, 4, 18100 Armilla, Granada, Spain
- School of Geosciences, University of Aberdeen, Meston Building, King’s College, Aberdeen AB24 3UE, United Kingdom
| | - Chenyi Yuan
- Oak Ridge Institute for Science and Education (ORISE), Office of Research and Development, U.S. Environmental Protection Agency, Athens, GA 30605, United States
| | | | - Askar Fahr
- American Chemical Society, Office of Research Grants, 1155 Sixteenth Street, NW, Washington D.C. 20036, United States
| | | | - David Lary
- William B. Hanson Center for Space Sciences, Department of Physics, University of Texas at Dallas, 800 West Campbell Road Richardson, TX 75080-3021, United States
| | - Yuan-Pern Lee
- Department of Applied Chemistry and Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu 30010, Taiwan
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Paulo Limão-Vieira
- Atomic and Molecular Collisions Laboratory, CEFITEC, Department of Physics, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Robert Locht
- RU MolSys, Molecular Dynamics Laboratory, Department of Chemistry, Blg B6c, University of Liège, Sart-Tilman, B-4000 Liège 1, Belgium
| | - Kristopher McNeill
- Institute for Biogeochemistry and Pollutant Dynamics, ETH Zurich, Universitätsstrasse 16, 8092 Zurich, Switzerland
| | - John J. Orlando
- Atmospheric Chemistry Observations and Modeling Laboratory, UCAR, P.O. Box 3000, Boulder, CO 80307-3000, United States
| | - Farid Salama
- NASA-Ames Research Center, Space Science & Astrobiology Division, Mail Stop: 245-6, Moffett Field, CA 94035-1000, United States
| | - Richard P. Wayne
- Chemistry Department, University of Oxford, South Parks Road, Oxford, OX1 3QR, United Kingdom
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70
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Walker HJ, Burrell MM. Could breath analysis by MS could be a solution to rapid, non-invasive testing for COVID-19? Bioanalysis 2020; 12:1213-1217. [PMID: 32734782 PMCID: PMC7466950 DOI: 10.4155/bio-2020-0125] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 06/11/2020] [Indexed: 01/13/2023] Open
Affiliation(s)
- Heather J Walker
- biOMICS Facility, Department of Animal & Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
| | - Michael M Burrell
- biOMICS Facility, Department of Animal & Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
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71
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Papaefstathiou E, Stylianou M, Andreou C, Agapiou A. Breath analysis of smokers, non-smokers, and e-cigarette users. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1160:122349. [PMID: 32920481 DOI: 10.1016/j.jchromb.2020.122349] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 08/17/2020] [Accepted: 08/25/2020] [Indexed: 12/18/2022]
Abstract
Solid phase micro extraction-Gas Chromatography/Mass Spectrometry (SPME-GC/MS) analysis was performed in exhaled breath samples of 48 healthy volunteers: 20 non-smokers, 10 smokers and 18 e-cigarette (EC, vape) users. Each volunteer provided 1 L of exhaled breath in a pre-cleaned Tedlar bag, in which an SPME fiber was exposed to absorb the emitted breath volatile organic compounds (VOCs). The acquired data were processed using multivariate data analysis (MDA) methods in order to identify the characteristic chemicals of the three groups. The results revealed that the breath of non-smokers demonstrated inverse correlation with a variety of molecules related to the breath from smokers including furan, toluene, 2-butanone and other organic substances. Vapers were distinguished from smokers by the chemical speciation of the e-liquids, such as that of esters (e.g. ethyl acetate), terpenes (e.g. α-pinene, β-pinene, d-limonene, p-cymene, etc.) and oxygenated compounds (e.g. 3-hexen-1-ol, benzaldehyde, hexanal, decanal, etc). Two classification models were developed (a) using principal component analysis (PCA) with hierarchical cluster analysis (HCA) and (b) using partial least squares-discriminant analysis (PLS-DA). Both models were validated using 8 new samples (4 vapers and 4 smokers), collected in addition to the 48 samples of the calibration set. The combination of GC/MS breath analysis and MDA contributed successfully in classifying the volunteers into their respective groups and highlighted the relevant characteristic VOCs. The respective dynamic combination (SPME-GC/MS and MDA) provides a means for long term non-invasive monitoring of the population's health status for early detection purposes.
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Affiliation(s)
- E Papaefstathiou
- Department of Chemistry, University of Cyprus, P.O.Box 20537, 1678 Nicosia, Cyprus
| | - M Stylianou
- Department of Chemistry, University of Cyprus, P.O.Box 20537, 1678 Nicosia, Cyprus
| | - C Andreou
- Department of Electrical and Computer Engineering, University of Cyprus, 1678 Nicosia, Cyprus
| | - A Agapiou
- Department of Chemistry, University of Cyprus, P.O.Box 20537, 1678 Nicosia, Cyprus.
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72
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Koureas M, Kirgou P, Amoutzias G, Hadjichristodoulou C, Gourgoulianis K, Tsakalof A. Target Analysis of Volatile Organic Compounds in Exhaled Breath for Lung Cancer Discrimination from Other Pulmonary Diseases and Healthy Persons. Metabolites 2020; 10:metabo10080317. [PMID: 32756521 PMCID: PMC7464039 DOI: 10.3390/metabo10080317] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/29/2020] [Accepted: 07/31/2020] [Indexed: 02/07/2023] Open
Abstract
The aim of the present study was to investigate the ability of breath analysis to distinguish lung cancer (LC) patients from patients with other respiratory diseases and healthy people. The population sample consisted of 51 patients with confirmed LC, 38 patients with pathological computed tomography (CT) findings not diagnosed with LC, and 53 healthy controls. The concentrations of 19 volatile organic compounds (VOCs) were quantified in the exhaled breath of study participants by solid phase microextraction (SPME) of the VOCs and subsequent gas chromatography-mass spectrometry (GC-MS) analysis. Kruskal-Wallis and Mann-Whitney tests were used to identify significant differences between subgroups. Machine learning methods were used to determine the discriminant power of the method. Several compounds were found to differ significantly between LC patients and healthy controls. Strong associations were identified for 2-propanol, 1-propanol, toluene, ethylbenzene, and styrene (p-values < 0.001-0.006). These associations remained significant when ambient air concentrations were subtracted from breath concentrations. VOC levels were found to be affected by ambient air concentrations and a few by smoking status. The random forest machine learning algorithm achieved a correct classification of patients of 88.5% (area under the curve-AUC 0.94). However, none of the methods used achieved adequate discrimination between LC patients and patients with abnormal computed tomography (CT) findings. Biomarker sets, consisting mainly of the exogenous monoaromatic compounds and 1- and 2- propanol, adequately discriminated LC patients from healthy controls. The breath concentrations of these compounds may reflect the alterations in patient's physiological and biochemical status and perhaps can be used as probes for the investigation of these statuses or normalization of patient-related factors in breath analysis.
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Affiliation(s)
- Michalis Koureas
- Department of Hygiene and Epidemiology, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, 22 Papakyriazi Street, 41222 Larissa, Greece; (M.K.); (C.H.)
| | - Paraskevi Kirgou
- Respiratory Medicine Department, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (P.K.); (K.G.)
| | - Grigoris Amoutzias
- Bioinformatics Laboratory, Department of Biochemistry and Biotechnology, University of Thessaly, 41500 Larissa, Greece;
| | - Christos Hadjichristodoulou
- Department of Hygiene and Epidemiology, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, 22 Papakyriazi Street, 41222 Larissa, Greece; (M.K.); (C.H.)
| | - Konstantinos Gourgoulianis
- Respiratory Medicine Department, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (P.K.); (K.G.)
| | - Andreas Tsakalof
- Department of Hygiene and Epidemiology, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, 22 Papakyriazi Street, 41222 Larissa, Greece; (M.K.); (C.H.)
- Department of Biochemistry, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece
- Correspondence: ; Tel.: +30-2410685580
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73
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Dospinescu VM, Tiele A, Covington JA. Sniffing Out Urinary Tract Infection-Diagnosis Based on Volatile Organic Compounds and Smell Profile. BIOSENSORS 2020; 10:E83. [PMID: 32717983 PMCID: PMC7460005 DOI: 10.3390/bios10080083] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/19/2020] [Accepted: 07/20/2020] [Indexed: 02/08/2023]
Abstract
Current available methods for the clinical diagnosis of urinary tract infection (UTI) rely on a urine dipstick test or culturing of pathogens. The dipstick test is rapid (available in 1-2 min), but has a low positive predictive value, while culturing is time-consuming and delays diagnosis (24-72 h between sample collection and pathogen identification). Due to this delay, broad-spectrum antibiotics are often prescribed immediately. The over-prescription of antibiotics should be limited, in order to prevent the development of antimicrobial resistance. As a result, there is a growing need for alternative diagnostic tools. This paper reviews applications of chemical-analysis instruments, such as gas chromatography-mass spectrometry (GC-MS), selected ion flow tube mass spectrometry (SIFT-MS), ion mobility spectrometry (IMS), field asymmetric ion mobility spectrometry (FAIMS) and electronic noses (eNoses) used for the diagnosis of UTI. These methods analyse volatile organic compounds (VOCs) that emanate from the headspace of collected urine samples to identify the bacterial pathogen and even determine the causative agent's resistance to different antibiotics. There is great potential for these technologies to gain wide-spread and routine use in clinical settings, since the analysis can be automated, and test results can be available within minutes after sample collection. This could significantly reduce the necessity to prescribe broad-spectrum antibiotics and allow the faster and more effective use of narrow-spectrum antibiotics.
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Affiliation(s)
| | - Akira Tiele
- School of Engineering, University of Warwick, Coventry CV4 7AL, UK;
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74
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Slingers G, Goossens R, Janssens H, Spruyt M, Goelen E, Vanden EM, Raes M, Koppen G. Real-time selected ion flow tube mass spectrometry to assess short- and long-term variability in oral and nasal breath. J Breath Res 2020; 14:036006. [PMID: 32422613 DOI: 10.1088/1752-7163/ab9423] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Breath-based non-invasive diagnostics have the potential to provide valuable information about a person's health status. However, they are not yet widely used in clinical practice due to multiple factors causing variability and the lack of standardized procedures. This study focuses on the comparison of oral and nasal breathing, and on the variability of volatile metabolites over the short and long term. Selected ion flow tube mass spectrometry (SIFT-MS) was used for online analysis of selected volatile metabolites in oral and nasal breath of 10 healthy individuals five times in one day (short-term) and six times spread over three weeks (long-term), resulting in nearly 100 breath samplings. Intra-class correlation coefficients (ICCs) were used to assess short- and long-term biological variability. Additionally, the composition of ambient air was analyzed at different samplings. The selected volatiles common in exhaled breath were propanol, 2,3-butanedione, acetaldehyde, acetone, ammonia, dimethyl sulfide, isoprene, pentane, and propanal. Additionally, environmental compounds benzene and styrene were analyzed as well. Volatile metabolite concentrations in ambient air were not correlated with those in exhaled breath and were significantly lower than in breath samples. All volatiles showed significant correlation between oral and nasal breath. Five were significantly higher in oral breath compared to nasal breath, while for acetone, propanal, dimethyl sulfide, and ammonia, concentrations were similar in both matrices. Variability depended on the volatile metabolite. Most physiologically relevant volatiles (acetone, isoprene, propanol, acetaldehyde) showed good to very good biological reproducibility (ICC > 0.61) mainly in oral breath and over a short-term period of one day. Both breathing routes showed relatively similar patterns; however, bigger differences were expected. Therefore, since sampling from the mouth is practically more easy, the latter might be preferred.
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Affiliation(s)
- G Slingers
- Hasselt University, Faculty of Medicine and Life Sciences, LCRC, Agoralaan 3590, Diepenbeek, Belgium. Flemish Institute for Technological Research, Unit Health, Industriezone Vlasmeer 2400, Mol, Belgium. Paediatrics, Jessa Hospital, Hasselt, Stadsomvaart 3500, Belgium
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75
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Gasparri R, Sedda G, Noberini R, Bonaldi T, Spaggiari L. Clinical Application of Mass Spectrometry-Based Proteomics in Lung Cancer Early Diagnosis. Proteomics Clin Appl 2020; 14:e1900138. [PMID: 32418314 DOI: 10.1002/prca.201900138] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 04/06/2020] [Indexed: 12/18/2022]
Abstract
The current knowledge on proteomic biomarker analysis for the early diagnosis of lung cancer is summarized, underlining the diversity among the results and the current interest in translating research results into clinical practice. A MEDLINE/PubMed literature search to retrieve all the papers published in the last 10 years is performed. Proteomics studies on lung cancer have gathered evidence on the potential role of biomarkers in early diagnosis. Although promising, none of them have proved to be sufficiently reliable to achieve validation. Future research should evolve toward a multipanel analysis of proteins, considering the possibility that individual biomarkers might not be specific enough to diagnose lung cancer, but could be related to oncological conditions.
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Affiliation(s)
- Roberto Gasparri
- Department of Thoracic Surgery, IEO, European Institute of Oncology IRCCS, Via Giuseppe Ripamonti 435, Milan, 20141, Italy
| | - Giulia Sedda
- Department of Thoracic Surgery, IEO, European Institute of Oncology IRCCS, Via Giuseppe Ripamonti 435, Milan, 20141, Italy
| | - Roberta Noberini
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Via Adamello 16, Milan, 20139, Italy
| | - Tiziana Bonaldi
- Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Via Adamello 16, Milan, 20139, Italy
| | - Lorenzo Spaggiari
- Department of Thoracic Surgery, IEO, European Institute of Oncology IRCCS, Via Giuseppe Ripamonti 435, Milan, 20141, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Via Festa del Perdono, Milan, 7 - 20122, Italy
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76
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Peel AM, Wilkinson M, Sinha A, Loke YK, Fowler SJ, Wilson AM. Volatile organic compounds associated with diagnosis and disease characteristics in asthma - A systematic review. Respir Med 2020; 169:105984. [PMID: 32510334 DOI: 10.1016/j.rmed.2020.105984] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 03/30/2020] [Accepted: 04/19/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Metabolomics refers to study of the metabolome, the entire set of metabolites produced by a biological system. The application of metabolomics to exhaled breath samples - breathomics - is a rapidly growing field with potential application to asthma diagnosis and management. OBJECTIVES We aimed to review the adult asthma breathomic literature and present a comprehensive list of volatile organic compounds identified by asthma breathomic models. METHODS We undertook a systematic search for literature on exhaled volatile organic compounds in adult asthma. We assessed the quality of studies and performed a qualitative synthesis. RESULTS We identified twenty studies; these were methodologically heterogenous with a variable risk of bias. Studies almost universally reported breathomics to be capable of differentiating - with moderate or greater accuracy - between samples from healthy controls and those with asthma; and to be capable of phenotyping disease. However, there was little concordance in the compounds upon which discriminatory models were based. CONCLUSION Results to-date are promising but validation in independent prospective cohorts is needed. This may be challenging given the high levels of inter-individual variation. However, large-scale, multi-centre studies are underway and validation efforts have been aided by the publication of technical standards likely to increase inter-study comparability. Successful validation of breathomic models for diagnosis and phenotyping would constitute an important step towards personalised medicine in asthma.
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Affiliation(s)
- Adam M Peel
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
| | - Maxim Wilkinson
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester; Manchester Academic Health Science Centre and NIHR Manchester Biomedical Research Centre, Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Ashnish Sinha
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Yoon K Loke
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
| | - Stephen J Fowler
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester; Manchester Academic Health Science Centre and NIHR Manchester Biomedical Research Centre, Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Andrew M Wilson
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK
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Elmassry MM, Piechulla B. Volatilomes of Bacterial Infections in Humans. Front Neurosci 2020; 14:257. [PMID: 32269511 PMCID: PMC7111428 DOI: 10.3389/fnins.2020.00257] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 03/09/2020] [Indexed: 02/06/2023] Open
Abstract
Sense of smell in humans has the capacity to detect certain volatiles from bacterial infections. Our olfactory senses were used in ancient medicine to diagnose diseases in patients. As humans are considered holobionts, each person's unique odor consists of volatile organic compounds (VOCs, volatilome) produced not only by the humans themselves but also by their beneficial and pathogenic micro-habitants. In the past decade it has been well documented that microorganisms (fungi and bacteria) are able to emit a broad range of olfactory active VOCs [summarized in the mVOC database (http://bioinformatics.charite.de/mvoc/)]. During microbial infection, the equilibrium between the human and its microbiome is altered, followed by a change in the volatilome. For several decades, physicians have been trying to utilize these changes in smell composition to develop fast and efficient diagnostic tools, particularly because volatiles detection is non-invasive and non-destructive, which would be a breakthrough in many therapies. Within this review, we discuss bacterial infections including gastrointestinal, respiratory or lung, and blood infections, focusing on the pathogens and their known corresponding volatile biomarkers. Furthermore, we cover the potential role of the human microbiota and their volatilome in certain diseases such as neurodegenerative diseases. We also report on discrete mVOCs that affect humans.
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Affiliation(s)
- Moamen M. Elmassry
- Department of Biological Sciences, Texas Tech University, Lubbock, TX, United States
| | - Birgit Piechulla
- Institute for Biological Sciences, University of Rostock, Rostock, Germany
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78
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Heaney LM, Kang S, Turner MA, Lindley MR, Thomas CLP. Evidence for alternative exhaled elimination profiles of disinfection by-products and potential markers of airway responses to swimming in a chlorinated pool environment. INDOOR AIR 2020; 30:284-293. [PMID: 31814168 DOI: 10.1111/ina.12630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 10/28/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
Chlorine-based disinfectants protect pool water from pathogen contamination but produce potentially harmful halogenated disinfection by-products (DBPs). This study characterized the bioaccumulation and elimination of exhaled DBPs post-swimming and investigated changes in exhaled breath profiles associated with chlorinated pool exposure. Nineteen participants provided alveolar-enriched breath samples prior to and 5, 90, 300, 510, and 600 minutes post-swimming. Known DBPs associated with chlorinated water were quantitated by thermal desorption-gas chromatography-mass spectrometry. Two distinct exhaled DBP elimination profiles were observed. Most participants (84%) reported peak concentrations immediately post-swimming that reduced exponentially. A sub-group exhibited a previously unobserved and delayed washout profile with peak levels at 90 minutes post-exposure. Metabolomic investigations tentatively identified two candidate biomarkers associated with swimming pool exposure, demonstrating an upregulation in the hours after exposure. These data demonstrated a hitherto undescribed exhaled DBP elimination profile in a small number of participants which contrasts previous findings of uniform accumulation and exponential elimination. This sub-group which exhibited delayed peak-exhaled concentrations suggests the uptake, processing, and immediate elimination of DBPs are not ubiquitous across individuals as previously understood. Additionally, non-targeted metabolomics highlighted extended buildup of compounds tentatively associated with swimming in a chlorinated pool environment that may indicate airway responses to DBP exposure.
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Affiliation(s)
- Liam M Heaney
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Shuo Kang
- Centre for Analytical Science, Department of Chemistry, Loughborough University, Loughborough, UK
| | - Matthew A Turner
- Centre for Analytical Science, Department of Chemistry, Loughborough University, Loughborough, UK
| | - Martin R Lindley
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
- Translational Chemical Biology Research Group, Loughborough University, Loughborough, UK
| | - Charles L Paul Thomas
- Centre for Analytical Science, Department of Chemistry, Loughborough University, Loughborough, UK
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Abstract
In this paper, we report on an in-house developed electronic nose (E-nose) for use with breath analysis. The unit consists of an array of 10 micro-electro-mechanical systems (MEMS) metal oxide (MOX) gas sensors produced by seven manufacturers. Breath sampling of end-tidal breath is achieved using a heated sample tube, capable of monitoring sampling-related parameters, such as carbon dioxide (CO2), humidity, and temperature. A simple mobile app was developed to receive real-time data from the device, using Wi-Fi communication. The system has been tested using chemical standards and exhaled breath samples from healthy volunteers, before and after taking a peppermint capsule. Results from chemical testing indicate that we can separate chemical standards (acetone, isopropanol and 1-propanol) and different concentrations of isobutylene. The analysis of exhaled breath samples demonstrate that we can distinguish between pre- and post-consumption of peppermint capsules; area under the curve (AUC): 0.81, sensitivity: 0.83 (0.59–0.96), specificity: 0.72 (0.47–0.90), p-value: <0.001. The functionality of the developed device has been demonstrated with the testing of chemical standards and a simplified breath study using peppermint capsules. It is our intention to deploy this system in a UK hospital in an upcoming breath research study.
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80
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Takke A, Shende P. Non-invasive Biodiversified Sensors: A Modernized Screening Technology for Cancer. Curr Pharm Des 2019; 25:4108-4120. [DOI: 10.2174/1381612825666191022162232] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 10/14/2019] [Indexed: 01/30/2023]
Abstract
Background:
Biological sensors revolutionize the method of diagnoses of diseases from early to final
stages using the biomarkers present in the body. Biosensors are advantageous due to the involvement of minimal
sample collection with improved specificity and sensitivity for the detection of biomarkers.
Methods:
Conventional biopsies restrict problems like patient non-compliance, cross-infection and high cost and to
overcome these issues biological samples like saliva, sweat, urine, tears and sputum progress into clinical and diagnostic
research for the development of non-invasive biosensors. This article covers various non-invasive measurements
of biological samples, optical-based, mass-based, wearable and smartphone-based biosensors for the detection
of cancer.
Results:
The demand for non-invasive, rapid and economic analysis techniques escalated due to the modernization
of the introduction of self-diagnostics and miniature forms of devices. Biosensors have high sensitivity and
specificity for whole cells, microorganisms, enzymes, antibodies, and genetic materials.
Conclusion:
Biosensors provide a reliable early diagnosis of cancer, which results in faster therapeutic outcomes
with in-depth fundamental understanding of the disease progression.
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Affiliation(s)
- Anjali Takke
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM's NMIMS, V. L. Mehta Road, Vile Parle (W), Mumbai, India
| | - Pravin Shende
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM's NMIMS, V. L. Mehta Road, Vile Parle (W), Mumbai, India
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81
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Blood Ketone Bodies and Breath Acetone Analysis and Their Correlations in Type 2 Diabetes Mellitus. Diagnostics (Basel) 2019; 9:diagnostics9040224. [PMID: 31861135 PMCID: PMC6963753 DOI: 10.3390/diagnostics9040224] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/06/2019] [Accepted: 12/07/2019] [Indexed: 12/14/2022] Open
Abstract
Analysis of volatile organic compounds in the breath for disease detection and monitoring has gained momentum and clinical significance due to its rapid test results and non-invasiveness, especially for diabetes mellitus (DM). Studies have suggested that breath gases, including acetone, may be related to simultaneous blood glucose (BG) and blood ketone levels in adults with types 2 and 1 diabetes. Detecting altered concentrations of ketones in the breath, blood and urine may be crucial for the diagnosis and monitoring of diabetes mellitus. This study assesses the efficacy of a simple breath test as a non-invasive means of diabetes monitoring in adults with type 2 diabetes mellitus. Human breath samples were collected in Tedlar™ bags and analyzed by headspace solid-phase microextraction and gas chromatography-mass spectrometry (HS-SPME/GC-MS). The measurements were compared with capillary BG and blood ketone levels (β-hydroxybutyrate and acetoacetate) taken at the same time on a single visit to a routine hospital clinic in 30 subjects with type 2 diabetes and 28 control volunteers. Ketone bodies of diabetic subjects showed a significant increase when compared to the control subjects; however, the ketone levels were was controlled in both diabetic and non-diabetic volunteers. Worthy of note, a statistically significant relationship was found between breath acetone and blood acetoacetate (R = 0.89) and between breath acetone and β-hydroxybutyrate (R = 0.82).
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82
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Volatile scents of influenza A and S. pyogenes (co-)infected cells. Sci Rep 2019; 9:18894. [PMID: 31827195 PMCID: PMC6906285 DOI: 10.1038/s41598-019-55334-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 11/27/2019] [Indexed: 12/23/2022] Open
Abstract
Influenza A is a serious pathogen itself, but often leads to dangerous co-infections in combination with bacterial species such as Streptococcus pyogenes. In comparison to classical biochemical methods, analysis of volatile organic compounds (VOCs) in headspace above cultures can enable destruction free monitoring of metabolic processes in vitro. Thus, volatile biomarkers emitted from biological cell cultures and pathogens could serve for monitoring of infection processes in vitro. In this study we analysed VOCs from headspace above (co)-infected human cells by using a customized sampling system. For investigating the influenza A mono-infection and the viral-bacterial co-infection in vitro, we analysed VOCs from Detroit cells inoculated with influenza A virus and S. pyogenes by means of needle-trap micro-extraction (NTME) and gas chromatography mass spectrometry (GC-MS). Besides the determination of microbiological data such as cell count, cytokines, virus load and bacterial load, emissions from cell medium, uninfected cells and bacteria mono-infected cells were analysed. Significant differences in emitted VOC concentrations were identified between non-infected and infected cells. After inoculation with S. pyogenes, bacterial infection was mirrored by increased emissions of acetaldehyde and propanal. N-propyl acetate was linked to viral infection. Non-destructive monitoring of infections by means of VOC analysis may open a new window for infection research and clinical applications. VOC analysis could enable early recognition of pathogen presence and in-depth understanding of their etiopathology.
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83
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Welearegay TG, Diouani MF, Österlund L, Borys S, Khaled S, Smadhi H, Ionescu F, Bouchekoua M, Aloui D, Laouini D, Cindemir U, Ionescu R. Diagnosis of Human Echinococcosis via Exhaled Breath Analysis: A Promise for Rapid Diagnosis of Infectious Diseases Caused by Helminths. J Infect Dis 2019; 219:101-109. [PMID: 30016445 DOI: 10.1093/infdis/jiy449] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Accepted: 07/13/2018] [Indexed: 01/02/2023] Open
Abstract
Background Human echinococcosis is a neglected infectious disease affecting more than 1 million people globally. Its diagnosis is expensive and difficult because of lack of adequate resources in low-resource locations, where most cases occur. Methods A group of volunteers diagnosed with the 2 main types of echinococcosis and corresponding control groups were recruited from hospitals in Tunisia (32 patients with cystic echinococcosis and 43 controls) and Poland (16 patients with alveolar echinococcosis and 8 controls). Breath samples were collected from all patients and analyzed by gas chromatography coupled to mass spectrometry, and a specifically developed electronic nose system. Results The chemical analysis revealed statistically different concentrations of 2 compounds in the breath of patients with cystic echinococcosis compared to controls, and statistically different concentrations of 7 compounds in the breath of patients with alveolar echinococcosis compared to controls. The discrimination accuracy achieved by the electronic nose system was 100% for cystic echinococcosis and 92.9% for alveolar echinococcosis, while the discrimination accuracy between these 2 patient groups was 92.1%. Conclusion Here we advocate a noninvasive, fast, easy-to-operate and nonexpensive diagnostic tool for the diagnosis of human echinococcosis disease through exhaled breath analysis, suitable for early diagnosis and population screening.
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Affiliation(s)
| | - Mohamed Fethi Diouani
- Laboratory of Epidemiology and Veterinary Microbiology, Institut Pasteur de Tunis, University Tunis El Manar, Tunis-Belvédère, Tunisia
| | - Lars Österlund
- Molecular Fingerprint AB Sweden, Uppsala.,Ångström Laboratory, Division of Solid State Physics, Department of Engineering Sciences, Uppsala University, Sweden
| | - Sebastian Borys
- University Centre of Maritime and Tropical Medicine, Gdynia-Redlowo, Poland
| | - Samira Khaled
- Parasitology-Mycology Laboratory, Charles Nicolle Hospital, Tunis
| | - Hanen Smadhi
- Ibn Nafis Pneumology Department, Abderrahman Mami Hospital, Ariana
| | - Florina Ionescu
- Department of Electronics, Electrical and Automatic Engineering, Rovira i Virgili University, Tarragona, Spain
| | | | - Dorsaf Aloui
- Parasitology-Mycology Laboratory, Charles Nicolle Hospital, Tunis
| | - Dhafer Laouini
- Laboratory of Transmission, Control and Immunobiology of Infections
| | - Umut Cindemir
- Molecular Fingerprint AB Sweden, Uppsala.,Ångström Laboratory, Division of Solid State Physics, Department of Engineering Sciences, Uppsala University, Sweden
| | - Radu Ionescu
- Department of Electronics, Electrical and Automatic Engineering, Rovira i Virgili University, Tarragona, Spain.,Ångström Laboratory, Division of Solid State Physics, Department of Engineering Sciences, Uppsala University, Sweden.,Institute of Macromolecular Chemistry "Petru Poni", Iasi, Romania
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84
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Gorbunov IS, Gubal’ AR, Ganeev AA, Rodinkov OV, Kartsova LA, Bessonova EA, Arsen’ev AI, Nefedov AO, Kraeva LA. Optimization of the Conditions of Analysis of Exhaled Air by Gas Chromatography–Mass Spectrometry for the Noninvasive Diagnostics of Lung Cancer. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s1061934819110042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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85
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Bocato MZ, Bianchi Ximenez JP, Hoffmann C, Barbosa F. An overview of the current progress, challenges, and prospects of human biomonitoring and exposome studies. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2019; 22:131-156. [PMID: 31543064 DOI: 10.1080/10937404.2019.1661588] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Human Biomonitoring (HB), the process for determining whether and to what extent chemical substances penetrated our bodies, serves as a useful tool to quantify human exposure to pollutants. In cases of nutrition and physiologic status, HB plays a critical role in the identification of excess or deficiency of essential nutrients. In pollutant HB studies, levels of substances measured in body fluids (blood, urine, and breast milk) or tissues (hair, nails or teeth) aid in the identification of potential health risks or associated adverse effects. However, even as a widespread practice in several countries, most HB studies reflect exposure to a single compound or mixtures which are measured at a single time point in lifecycle. On the other hand, throughout an individual's lifespan, the contact with different physical, chemical, and social stressors occurs at varying intensities, differing times and durations. Further, the interaction between stressors and body receptors leads to dynamic responses of the entire biological system including proteome, metabolome, transcriptome, and adductome. Bearing this in mind, a relatively new vision in exposure science, defined as the exposome, is postulated to expand the traditional practice of measuring a single exposure to one or few chemicals at one-time point to an approach that addresses measures of exposure to multiple stressors throughout the lifespan. With the exposome concept, the science of exposure advances to an Environment-Wide Association Perspective, which might exhibit a stronger relationship with good health or disease conditions for an individual (phenotype). Thus, this critical review focused on the current progress of HB and exposome investigations, anticipating some challenges, strategies, and future needs to be taken into account for designing future surveys.
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Affiliation(s)
- Mariana Zuccherato Bocato
- Laboratório de Toxicologia Analítica e de Sistemas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , Brazil
| | - João Paulo Bianchi Ximenez
- Laboratório de Toxicologia Analítica e de Sistemas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , Brazil
| | - Christian Hoffmann
- Departmento de Alimentos e Nutrição Experimental Faculdade de Ciências Farmacêuticas, Universidade de São Paulo , São Paulo , Brazil
| | - Fernando Barbosa
- Laboratório de Toxicologia Analítica e de Sistemas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo , Ribeirão Preto , Brazil
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86
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Rudnicka J, Kowalkowski T, Buszewski B. Searching for selected VOCs in human breath samples as potential markers of lung cancer. Lung Cancer 2019; 135:123-129. [DOI: 10.1016/j.lungcan.2019.02.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/11/2019] [Accepted: 02/14/2019] [Indexed: 01/09/2023]
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87
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Iskander-Rizk S, van der Steen AFW, van Soest G. Photoacoustic imaging for guidance of interventions in cardiovascular medicine. Phys Med Biol 2019; 64:16TR01. [PMID: 31048573 DOI: 10.1088/1361-6560/ab1ede] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Imaging guidance is paramount to procedural success in minimally invasive interventions. Catheter-based therapies are the standard of care in the treatment of many cardiac disorders, including coronary artery disease, structural heart disease and electrophysiological conditions. Many of these diseases are caused by, or effect, a change in vasculature or cardiac tissue composition, which can potentially be detected by photoacoustic imaging. This review summarizes the state of the art in photoacoustic imaging approaches that have been proposed for intervention guidance in cardiovascular care. All of these techniques are currently in the preclinical phase. We will conclude with an outlook towards clinical applications.
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Affiliation(s)
- Sophinese Iskander-Rizk
- Department of Cardiology, Biomedical Engineering, Erasmus MC University Medical Center Rotterdam, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands
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88
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Barbosa JMG, Pereira NZ, David LC, de Oliveira CG, Soares MFG, Avelino MAG, de Oliveira AE, Shokry E, Filho NRA. Cerumenogram: a new frontier in cancer diagnosis in humans. Sci Rep 2019; 9:11722. [PMID: 31409861 PMCID: PMC6692389 DOI: 10.1038/s41598-019-48121-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 07/22/2019] [Indexed: 02/07/2023] Open
Abstract
Cancer is the deadliest human disease and the development of new diagnosis methods is important to increase the chances of a cure. In this work it was developed a new method, named here for the first time as cerumenogram, using cerumen (earwax) as a new biomatrix for diagnosis. Earwax samples collected from cancer patients (cancer group) and cancer-free patients (control group) were analyzed by Headspace/Gas Chromatography-Mass Spectrometry (HS/GC-MS), following with multivariate analysis steps to process the raw data generated. In total, 158 volatile organic metabolites (VOMs) were identified in the cerumen samples. The 27 selected as potential VOMs biomarkers for cancer provided 100% discrimination between the cancer and control groups. This new test can thus be routinely employed for cancer diagnoses that is non-invasive, fast, cheap, and highly accurate.
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Affiliation(s)
- João Marcos Gonçalves Barbosa
- Laboratory of Extraction and Separation Methods (LAMES), Institute of Chemistry, Federal University of Goiás (UFG), Campus II - Samambaia, 74690-900, Goiânia, GO, Brazil.
| | - Naiara Zedes Pereira
- Laboratory of Extraction and Separation Methods (LAMES), Institute of Chemistry, Federal University of Goiás (UFG), Campus II - Samambaia, 74690-900, Goiânia, GO, Brazil
| | - Lurian Caetano David
- Laboratory of Extraction and Separation Methods (LAMES), Institute of Chemistry, Federal University of Goiás (UFG), Campus II - Samambaia, 74690-900, Goiânia, GO, Brazil
| | - Camilla Gabriela de Oliveira
- Clinical Hospital, Federal University of Goiás (UFG), Campus I - Colemar Natal e Silva, 74605-020, Goiânia, GO, Brazil
| | - Marina Ferraz Gontijo Soares
- Clinical Hospital, Federal University of Goiás (UFG), Campus I - Colemar Natal e Silva, 74605-020, Goiânia, GO, Brazil
| | - Melissa Ameloti Gomes Avelino
- Clinical Hospital, Federal University of Goiás (UFG), Campus I - Colemar Natal e Silva, 74605-020, Goiânia, GO, Brazil
| | - Anselmo Elcana de Oliveira
- Laboratory of Theoretical and Computational Chemistry (LQTC), Institute of Chemistry, Federal University of Goiás (UFG), Campus II - Samambaia, 74690-970, Goiânia, GO, Brazil
| | - Engy Shokry
- Laboratory of Extraction and Separation Methods (LAMES), Institute of Chemistry, Federal University of Goiás (UFG), Campus II - Samambaia, 74690-900, Goiânia, GO, Brazil
| | - Nelson Roberto Antoniosi Filho
- Laboratory of Extraction and Separation Methods (LAMES), Institute of Chemistry, Federal University of Goiás (UFG), Campus II - Samambaia, 74690-900, Goiânia, GO, Brazil. .,Laboratory of Extraction and Separation Methods (LAMES), Institute of Chemistry, Federal University of Goiás (UFG), Campus II - Samambaia, 74690-900, Goiânia, GO, Brazil.
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89
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Li W, Dai W, Liu M, Long Y, Wang C, Xie S, Liu Y, Zhang Y, Shi Q, Peng X, Liu Y, Li Q, Duan Y. VOC biomarkers identification and predictive model construction for lung cancer based on exhaled breath analysis: research protocol for an exploratory study. BMJ Open 2019; 9:e028448. [PMID: 31399453 PMCID: PMC6701581 DOI: 10.1136/bmjopen-2018-028448] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 03/26/2019] [Accepted: 06/19/2019] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION Lung cancer is the most common cancer and the leading cause of cancer death in China, as well as in the world. Late diagnosis is the main obstacle to improving survival. Currently, early detection methods for lung cancer have many limitations, for example, low specificity, risk of radiation exposure and overdiagnosis. Exhaled breath analysis is one of the most promising non-invasive techniques for early detection of lung cancer. The aim of this study is to identify volatile organic compound (VOC) biomarkers in lung cancer and to construct a predictive model for lung cancer based on exhaled breath analysis. METHODS AND ANALYSIS The study will recruit 389 lung cancer patients in one cancer centre and 389 healthy subjects in two lung cancer screening centres. Bio-VOC breath sampler and Tedlar bag will be used to collect breath samples. Gas chromatography-mass spectrometry coupled with solid phase microextraction technique will be used to analyse VOCs in exhaled breath. VOC biomarkers with statistical significance and showing abilities to discriminate lung cancer patients from healthy subjects will be selected for the construction of predictive model for lung cancer. ETHICS AND DISSEMINATION The study was approved by the Ethics Committee of Sichuan Cancer Hospital on 6 April 2017 (No. SCCHEC-02-2017-011). The results of this study will be disseminated in presentations at academic conferences, publications in peer-reviewed journals and the news media. TRIAL REGISTRATION NUMBER ChiCTR-DOD-17011134; Pre-results.
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Affiliation(s)
- Wenwen Li
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
- Research Center of Analytical Instrumentation, The College of Life Sciences, Sichuan University, Chengdu, China
| | - Wei Dai
- Department of Thoracic Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Mingxin Liu
- Department of Thoracic Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yijing Long
- Research Center of Analytical Instrumentation, The College of Life Sciences, Sichuan University, Chengdu, China
| | - Chunyan Wang
- Research Center of Analytical Instrumentation, The College of Life Sciences, Sichuan University, Chengdu, China
| | - Shaohua Xie
- Department of Thoracic Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Graduate School, Chengdu Medical College, Chengdu, China
| | - Yuanling Liu
- Research Center of Analytical Instrumentation, The College of Life Sciences, Sichuan University, Chengdu, China
| | - Yinchenxi Zhang
- Research Center of Analytical Instrumentation, The College of Life Sciences, Sichuan University, Chengdu, China
| | - Qiuling Shi
- Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Xiaoqin Peng
- Department of Thoracic Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Graduate School, Chengdu Medical College, Chengdu, China
| | - Yifeng Liu
- Department of Thoracic Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Graduate School, Chengdu Medical College, Chengdu, China
| | - Qiang Li
- Department of Thoracic Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yixiang Duan
- Research Center of Analytical Instrumentation, The College of Life Sciences, Sichuan University, Chengdu, China
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90
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Synthesis of Graphene-based Materials for Surface-Enhanced Raman Scattering Applications. E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY 2019. [DOI: 10.1380/ejssnt.2019.71] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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91
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Hashoul D, Haick H. Sensors for detecting pulmonary diseases from exhaled breath. Eur Respir Rev 2019; 28:28/152/190011. [PMID: 31243097 PMCID: PMC9489036 DOI: 10.1183/16000617.0011-2019] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 05/13/2019] [Indexed: 01/09/2023] Open
Abstract
This review presents and discusses a new frontier for fast, risk-free and potentially inexpensive diagnostics of respiratory diseases by detecting volatile organic compounds (VOCs) present in exhaled breath. One part of the review is a didactic presentation of the overlaying concept and the chemistry of exhaled breath. The other part discusses diverse sensors that have been developed and used for the detection of respiratory diseases (e.g. chronic obstructive pulmonary disease, asthma, lung cancer, pulmonary arterial hypertension, tuberculosis, cystic fibrosis, obstructive sleep apnoea syndrome and pneumoconiosis) by analysis of VOCs in exhaled breath. The strengths and pitfalls are discussed and criticised, particularly in the perspective in disseminating information regarding these advances. Ideas regarding the improvement of sensors, sensor arrays, sensing devices and the further planning of workflow are also discussed. Detection of volatile organic compounds from exhaled breath by nanomaterial-based sensors is a new diagnostics frontier in the screening of pulmonary diseases.http://bit.ly/2JoBKXn
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Affiliation(s)
- Dina Hashoul
- Dept of Chemical Engineering, Russell Berrie Nanotechnology Institute, and the Technion Integrated Cancer Center, Haifa, Israel
| | - Hossam Haick
- Dept of Chemical Engineering, Russell Berrie Nanotechnology Institute, and the Technion Integrated Cancer Center, Haifa, Israel
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Rothbart N, Holz O, Koczulla R, Schmalz K, Hübers HW. Analysis of Human Breath by Millimeter-Wave/Terahertz Spectroscopy. SENSORS (BASEL, SWITZERLAND) 2019; 19:E2719. [PMID: 31212999 PMCID: PMC6630364 DOI: 10.3390/s19122719] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 06/12/2019] [Accepted: 06/13/2019] [Indexed: 11/17/2022]
Abstract
Breath gas analysis is a promising tool for medical research and diagnosis. A particularly powerful technological approach is millimeter-wave/terahertz (mmW/THz) spectroscopy, because it is a very sensitive and highly selective technique. In addition, it offers the potential for compact and affordable sensing systems for wide use. In this work, we demonstrate the capability of a mmW/THz spectrometer for breath analysis. Samples from three volunteers and a sample from ambient air were analyzed with respect to 31 different molecular species. High-resolution absorption spectra were measured by scanning two absorption lines from each species. Out of the 31, a total of 21 species were detected. The results demonstrate the potential of mmW/THz spectroscopy for breath analysis.
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Affiliation(s)
- Nick Rothbart
- Institute of Optical Sensor Systems, German Aerospace Center (DLR), 12489 Berlin, Germany.
- Department of Physics, Humboldt-Universität zu Berlin, 12489 Berlin, Germany.
| | - Olaf Holz
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), 30625 Hannover, Germany.
- The German Center for Lung Research (DZL), 35392 Giessen, Germany.
| | - Rembert Koczulla
- The German Center for Lung Research (DZL), 35392 Giessen, Germany.
- Department of Pulmonology, Institute for Internal Medicine, Philipps-University of Marburg, 35043 Marburg, Germany.
- Schön Klinik Berchtesgadener Land, Department for Pulmonology, Teaching Hospital of the Philipps-University, 35043 Marburg, Germany.
- Teaching Department of the Paracelsus University Salzburg, 5020 Salzburg, Austria.
| | - Klaus Schmalz
- IHP-Leibniz-Institut für innovative Mikroelektronik, 15236 Frankfurt (Oder), Germany.
| | - Heinz-Wilhelm Hübers
- Institute of Optical Sensor Systems, German Aerospace Center (DLR), 12489 Berlin, Germany.
- Department of Physics, Humboldt-Universität zu Berlin, 12489 Berlin, Germany.
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93
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Hybrid Analytical Platform Based on Field-Asymmetric Ion Mobility Spectrometry, Infrared Sensing, and Luminescence-Based Oxygen Sensing for Exhaled Breath Analysis. SENSORS 2019; 19:s19122653. [PMID: 31212768 PMCID: PMC6630267 DOI: 10.3390/s19122653] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/07/2019] [Accepted: 06/09/2019] [Indexed: 12/19/2022]
Abstract
The reliable online analysis of volatile compounds in exhaled breath remains a challenge, as a plethora of molecules occur in different concentration ranges (i.e., ppt to %) and need to be detected against an extremely complex background matrix. Although this complexity is commonly addressed by hyphenating a specific analytical technique with appropriate preconcentration and/or preseparation strategies prior to detection, we herein propose the combination of three different detector types based on truly orthogonal measurement principles as an alternative solution: Field-asymmetric ion mobility spectrometry (FAIMS), Fourier-transform infrared (FTIR) spectroscopy-based sensors utilizing substrate-integrated hollow waveguides (iHWG), and luminescence sensing (LS). By carefully aligning the experimental needs and measurement protocols of all three methods, they were successfully integrated into a single compact analytical platform suitable for online measurements. The analytical performance of this prototype system was tested via artificial breath samples containing nitrogen (N2), oxygen (O2), carbon dioxide (CO2), and acetone as a model volatile organic compound (VOC) commonly present in breath. All three target analytes could be detected within their respectively breath-relevant concentration range, i.e., CO2 and O2 at 3-5 % and at ~19.6 %, respectively, while acetone could be detected with LOQs as low as 165-405 ppt. Orthogonality of the three methods operating in concert was clearly proven, which is essential to cover a possibly wide range of detectable analytes. Finally, the remaining challenges toward the implementation of the developed hybrid FAIMS-FTIR-LS system for exhaled breath analysis for metabolic studies in small animal intensive care units are discussed.
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94
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Subbiah DK, Babu KJ, Das A, Rayappan JBB. NiO x Nanoflower Modified Cotton Fabric for UV Filter and Gas Sensing Applications. ACS APPLIED MATERIALS & INTERFACES 2019; 11:20045-20055. [PMID: 31084020 DOI: 10.1021/acsami.9b04682] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Integration of multifunctional nanomaterials with textiles could be a significant value addition to the bright future of the growing technology "Technical Textiles". Development of textiles with antielectromagnetic radiation and in particular antiultraviolet features could be one of the best solutions to the ozone depletion induced ultraviolet pollution of the environment, which is a major concern in the context of surging skin cancer cases. In this background, multifunctional nanoflower structured partial hydroxide nickel oxide (NiO x) was grown on cotton fabric using a chemical bath deposition technique for the development of UV filter and flexible gas/chemical sensor. X-ray diffraction patterns of bare and NiO x modified cotton fabrics confirmed the micro and poly crystalline nature, respectively. Field emission scanning electron microscopic images revealed the growth of 3D green button chrysanthemum flower-like morphology on the surface of cotton fabric. In addition, X-ray photoelectron spectra revealed the presence of nickel, carbon, and oxygen elements in the NiO x modified cotton cellulose. The increase in hydrophobic nature of surface-treated fabric was observed using a goniometer. A differential scanning calorimeter trace for bare and surface modified cotton fabrics exhibited endothermic behavior at the characteristic onset temperature. The results of thermogravimetric analysis revealed the enhanced thermal stability of up to 800 °C for the surface-treated fabric compared to bare cotton. Further, the ultraviolet protection factor (UPF) of the NiO x nanoflower modified cotton fabric was measured using an in vitro method following the AATCC 183:2004 standard using a UV transmittance analyzer. The enhanced absorbance of ultraviolet rays at 388 nm resulted in the UPF of 2000. The chemical/gas sensing features of the surface modified textile samples were investigated using the homemade gas testing chamber. NiO x modified fabric showed a selective response of 12431 toward trimethylamine at room temperature.
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Affiliation(s)
- Dinesh Kumar Subbiah
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB) and School of Electrical & Electronics Engineering (SEEE) , SASTRA Deemed to be University , Thanjavur 613 401 , India
| | - K Jayanth Babu
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB) and School of Electrical & Electronics Engineering (SEEE) , SASTRA Deemed to be University , Thanjavur 613 401 , India
| | - Apurba Das
- Depatment of Textile Technology , Indian Institute of Technology Delhi , New Delhi - 110 016 , India
| | - John Bosco Balaguru Rayappan
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB) and School of Electrical & Electronics Engineering (SEEE) , SASTRA Deemed to be University , Thanjavur 613 401 , India
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95
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Gashimova EM, Temerdashev AZ, Porkhanov VA, Polyakov IS, Perunov DV, Azaryan AA, Dmitrieva EV. Evaluation of the Possibility of Volatile Organic Compounds Determination in Exhaled Air by Gas Chromatography for the Noninvasive Diagnostics of Lung Cancer. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s1061934819050034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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96
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Gaude E, Nakhleh MK, Patassini S, Boschmans J, Allsworth M, Boyle B, van der Schee MP. Targeted breath analysis: exogenous volatile organic compounds (EVOC) as metabolic pathway-specific probes. J Breath Res 2019; 13:032001. [DOI: 10.1088/1752-7163/ab1789] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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97
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Papaefstathiou E, Stylianou M, Agapiou A. Main and side stream effects of electronic cigarettes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 238:10-17. [PMID: 30836280 DOI: 10.1016/j.jenvman.2019.01.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/05/2019] [Accepted: 01/11/2019] [Indexed: 06/09/2023]
Abstract
Over the last decade there has been a significant boost towards the use of electronic cigarettes (e-cigarettes), especially among youth. Different concentrations of propylene glycol (PG) or vegetable glycerin (VG), flavors and nicotine are mixed in plastic cartridges and commercially offered or privately produced by the vapers. During vaping, a mixture of air and vapors is inhaled to the lungs. Since the ingredients of the e-cigarettes are not burned but vaporized (heated), fewer chemicals are emitted. The levels of potentially toxic compounds (e.g. volatile organic compounds (VOCs), particulate matter (PM), metals, radicals, nitrosamines, etc.) emitted from vaping appear to be lower compared to that of tobacco smoking (from combustible cigarettes). Nevertheless, measurable toxic elements and VOCs are still released (e.g. acetaldehyde, formaldehyde, acrolein, benzene, etc.) along with other volatiles associated with e-liquid flavoring and device variability with PG and VG. The wide range of available flavors at various purities along with the heating temperature are important parameters affecting the evolution of VOCs and aerosols. There is lack of standardized short- and long-term epidemiological medical data (chronic exposure) on e-cigarettes effects to users, non-users and the human micro-environment (second- or third-hand exposure). Therefore, the potential health, safety and environmental effects of vaping are reviewed, examined and discussed.
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Affiliation(s)
- E Papaefstathiou
- Department of Chemistry, University of Cyprus, P.O. Box 20537, Nicosia 1678, Cyprus
| | - M Stylianou
- Department of Chemistry, University of Cyprus, P.O. Box 20537, Nicosia 1678, Cyprus; NIREAS-International Water Research Center, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus
| | - A Agapiou
- Department of Chemistry, University of Cyprus, P.O. Box 20537, Nicosia 1678, Cyprus.
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98
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Antoniou SX, Gaude E, Ruparel M, van der Schee MP, Janes SM, Rintoul RC. The potential of breath analysis to improve outcome for patients with lung cancer. J Breath Res 2019; 13:034002. [PMID: 30822771 DOI: 10.1088/1752-7163/ab0bee] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Lung cancer remains the most common cause of cancer related death in both the UK and USA. Development of diagnostic approaches that have the ability to detect lung cancer early are a research priority with potential to improve survival. Analysis of exhaled breath metabolites, or volatile organic compounds (VOCs) is an area of considerable interest as it could fulfil such requirements. Numerous studies have shown that VOC profiles are different in the breath of patients with lung cancer compared to healthy individuals or those with non-malignant lung diseases. This review provides a scientific and clinical assessment of the potential value of a breath test in lung cancer. It discusses the current understanding of metabolic pathways that contribute to exhaled VOC production in lung cancer and reviews the research conducted to date. Finally, we highlight important areas for future research and discuss how a breath test could be incorporated into various clinical pathways.
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Affiliation(s)
- S X Antoniou
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, United Kingdom.,Equal contribution
| | - E Gaude
- Owlstone Medical, Cambridge, United Kingdom,Equal contribution
| | - M Ruparel
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, United Kingdom
| | | | - S M Janes
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, United Kingdom
| | - R C Rintoul
- Papworth Trials Unit Collaboration, Royal Papworth Hospital, Cambridge, United Kingdom,Department of Oncology, University of Cambridge, United Kingdom
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99
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Wingelaar TT, Brinkman P, van Ooij PJAM, Hoencamp R, Maitland-van der Zee AH, Hollmann MW, van Hulst RA. Markers of Pulmonary Oxygen Toxicity in Hyperbaric Oxygen Therapy Using Exhaled Breath Analysis. Front Physiol 2019; 10:475. [PMID: 31068838 PMCID: PMC6491850 DOI: 10.3389/fphys.2019.00475] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 04/04/2019] [Indexed: 12/16/2022] Open
Abstract
Introduction Although hyperbaric oxygen therapy (HBOT) has beneficial effects, some patients experience fatigue and pulmonary complaints after several sessions. The current limits of hyperbaric oxygen exposure to prevent pulmonary oxygen toxicity (POT) are based on pulmonary function tests (PFT), but the limitations of PFT are recognized worldwide. However, no newer modalities to detect POT have been established. Exhaled breath analysis in divers have shown volatile organic compounds (VOCs) of inflammation and methyl alkanes. This study hypothesized that similar VOCs might be detected after HBOT. Methods Ten healthy volunteers of the Royal Netherlands Navy underwent six HBOT sessions (95 min at 253 kPa, including three 5-min “air breaks”), i.e., on five consecutive days followed by another session after 2 days of rest. At 30 min before the dive, and at 30 min, 2 and 4 h post-dive, exhaled breath was collected and followed by PFT. Exhaled breath samples were analyzed using gas chromatography-mass spectrometry (GC-MS). After univariate tests and correlation of retention times, ion fragments could be identified using a reference database. Using these fragments VOCs could be reconstructed, which were clustered using principal component analysis. These clusters were tested longitudinally with ANOVA. Results After GC-MS analysis, eleven relevant VOCs were identified which could be clustered into two principal components (PC). PC1 consisted of VOCs associated with inflammation and showed no significant change over time. The intensities of PC2, consisting of methyl alkanes, showed a significant decrease (p = 0.001) after the first HBOT session to 50.8%, remained decreased during the subsequent days (mean 82%), and decreased even further after 2 days of rest to 58% (compared to baseline). PFT remained virtually unchanged. Discussion Although similar VOCs were found when compared to diving, the decrease of methyl alkanes (PC2) is in contrast to the increase seen in divers. It is unknown why emission of methyl alkanes (which could originate from the phosphatidylcholine membrane in the alveoli) are reduced after HBOT. This suggests that HBOT might not be as damaging to the pulmonary tract as previously assumed. Future research on POT should focus on the identified VOCs (inflammation and methyl alkanes).
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Affiliation(s)
- T T Wingelaar
- Diving Medical Centre, Royal Netherlands Navy, Den Helder, Netherlands.,Department of Anaesthesiology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - P Brinkman
- Department of Pulmonology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - P J A M van Ooij
- Diving Medical Centre, Royal Netherlands Navy, Den Helder, Netherlands.,Department of Pulmonology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - R Hoencamp
- Department of Surgery, Alrijne Hospital Leiderdorp, Leiderdorp, Netherlands.,Defense Healthcare Organisation, Ministry of Defence, Utrecht, Netherlands.,Leiden University Medical Center, Leiden, Netherlands
| | | | - M W Hollmann
- Department of Anaesthesiology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - R A van Hulst
- Department of Anaesthesiology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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100
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Tiele A, Wicaksono A, Kansara J, Arasaradnam RP, Covington JA. Breath Analysis Using eNose and Ion Mobility Technology to Diagnose Inflammatory Bowel Disease-A Pilot Study. BIOSENSORS-BASEL 2019; 9:bios9020055. [PMID: 31013848 PMCID: PMC6627846 DOI: 10.3390/bios9020055] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 03/29/2019] [Accepted: 04/08/2019] [Indexed: 12/12/2022]
Abstract
Early diagnosis of inflammatory bowel disease (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), remains a clinical challenge with current tests being invasive and costly. The analysis of volatile organic compounds (VOCs) in exhaled breath and biomarkers in stool (faecal calprotectin (FCP)) show increasing potential as non-invasive diagnostic tools. The aim of this pilot study is to evaluate the efficacy of breath analysis and determine if FCP can be used as an additional non-invasive parameter to supplement breath results, for the diagnosis of IBD. Thirty-nine subjects were recruited (14 CD, 16 UC, 9 controls). Breath samples were analysed using an in-house built electronic nose (Wolf eNose) and commercial gas chromatograph-ion mobility spectrometer (G.A.S. BreathSpec GC-IMS). Both technologies could consistently separate IBD and controls [AUC ± 95%, sensitivity, specificity], eNose: [0.81, 0.67, 0.89]; GC-IMS: [0.93, 0.87, 0.89]. Furthermore, we could separate CD from UC, eNose: [0.88, 0.71, 0.88]; GC-IMS: [0.71, 0.86, 0.62]. Including FCP did not improve distinction between CD vs UC; eNose: [0.74, 1.00, 0.56], but rather, improved separation of CD vs controls and UC vs controls; eNose: [0.77, 0.55, 1.00] and [0.72, 0.89, 0.67] without FCP, [0.81, 0.73, 0.78] and [0.90, 1.00, 0.78] with FCP, respectively. These results confirm the utility of breath analysis to distinguish between IBD-related diagnostic groups. FCP does not add significant diagnostic value to breath analysis within this study.
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Affiliation(s)
- Akira Tiele
- School of Engineering, University of Warwick, Coventry CV4 7AL, UK.
| | - Alfian Wicaksono
- School of Engineering, University of Warwick, Coventry CV4 7AL, UK.
| | - Jiten Kansara
- Department of Gastroenterology, University Hospitals Coventry and Warwickshire, Coventry CV2 2DX, UK.
| | - Ramesh P Arasaradnam
- Department of Gastroenterology, University Hospitals Coventry and Warwickshire, Coventry CV2 2DX, UK.
- Applied Biological Sciences, Coventry University, Coventry CV1 5FB, UK.
- Health and Life Sciences, University of Leicester, Leicester LE1 7RH, UK.
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK.
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