Volume 10, Issue 12 pp. 1703-1713
Full Article

Development of a classification model for non-alcoholic steatohepatitis (NASH) using confocal Raman micro-spectroscopy

Jie Yan

Jie Yan

Institute of Bioengineering and Nanotechnology, Agency for Science, Technology and Research (A*STAR), Singapore, 138669

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Yang Yu

Yang Yu

Institute of Bioengineering and Nanotechnology, Agency for Science, Technology and Research (A*STAR), Singapore, 138669

Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 2 Medical Drive, Singapore, 117597

BioSyM, Singapore-MIT Alliance for Research and Technology, Singapore, 138602

Co-first authors

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Jeon Woong Kang

Jeon Woong Kang

Laser Biomedical Research Center, George R. Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139 USA

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Zhi Yang Tam

Zhi Yang Tam

BioSyM, Singapore-MIT Alliance for Research and Technology, Singapore, 138602

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Shuoyu Xu

Shuoyu Xu

InvitroCue Pte Ltd, Singapore, 138667

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Eliza Li Shan Fong

Eliza Li Shan Fong

Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 2 Medical Drive, Singapore, 117597

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Surya Pratap Singh

Surya Pratap Singh

Laser Biomedical Research Center, George R. Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139 USA

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Ziwei Song

Ziwei Song

Institute of Bioengineering and Nanotechnology, Agency for Science, Technology and Research (A*STAR), Singapore, 138669

Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 2 Medical Drive, Singapore, 117597

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Lisa Tucker-Kellogg

Lisa Tucker-Kellogg

BioSyM, Singapore-MIT Alliance for Research and Technology, Singapore, 138602

Duke-NUS Graduate Medical School Singapore, National University of Singapore, Singapore, 169857

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Peter T. C. So

Peter T. C. So

BioSyM, Singapore-MIT Alliance for Research and Technology, Singapore, 138602

Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 USA

Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 USA

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Hanry Yu

Corresponding Author

Hanry Yu

Institute of Bioengineering and Nanotechnology, Agency for Science, Technology and Research (A*STAR), Singapore, 138669

Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 2 Medical Drive, Singapore, 117597

BioSyM, Singapore-MIT Alliance for Research and Technology, Singapore, 138602

Mechanobiology Institute, National University of Singapore, Singapore, 117411

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First published: 21 June 2017
Citations: 10

Abstract

Non-alcoholic fatty liver disease (NAFLD) is the most common liver disorder in developed countries [1]. A subset of individuals with NAFLD progress to non-alcoholic steatohepatitis (NASH), an advanced form of NAFLD which predisposes individuals to cirrhosis, liver failure and hepatocellular carcinoma. The current gold standard for NASH diagnosis and staging is based on histological evaluation, which is largely semi-quantitative and subjective. To address the need for an automated and objective approach to NASH detection, we combined Raman micro-spectroscopy and machine learning techniques to develop a classification model based on a well-established NASH mouse model, using spectrum pre-processing, biochemical component analysis (BCA) and logistic regression. By employing a selected pool of biochemical components, we identified biochemical changes specific to NASH and show that the classification model is capable of accurately detecting NASH (AUC=0.85–0.87) in mice. The unique biochemical fingerprint generated in this study may serve as a useful criterion to be leveraged for further validation in clinical samples.

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