학술논문

Predicting and elucidating the etiology of fatty liver disease: A machine learning modeling and validation study in the IMI DIRECT cohorts
Document Type
Clinical report
Source
PLoS Medicine. June 19, 2020, Vol. 17 Issue 6, pe1003149
Subject
Diagnostic imaging -- Health aspects
Machine learning -- Health aspects
Type 2 diabetes -- Risk factors
Enzymes -- Health aspects
Fatty liver -- Risk factors
Language
English
ISSN
1549-1277
Abstract
Background Non-alcoholic fatty liver disease (NAFLD) is highly prevalent and causes serious health complications in individuals with and without type 2 diabetes (T2D). Early diagnosis of NAFLD is important, as this can help prevent irreversible damage to the liver and, ultimately, hepatocellular carcinomas. We sought to expand etiological understanding and develop a diagnostic tool for NAFLD using machine learning. Methods and findings We utilized the baseline data from IMI DIRECT, a multicenter prospective cohort study of 3,029 European-ancestry adults recently diagnosed with T2D (n = 795) or at high risk of developing the disease (n = 2,234). Multi-omics (genetic, transcriptomic, proteomic, and metabolomic) and clinical (liver enzymes and other serological biomarkers, anthropometry, measures of beta-cell function, insulin sensitivity, and lifestyle) data comprised the key input variables. The models were trained on MRI-image-derived liver fat content ( Conclusions In this study, we developed several models with different combinations of clinical and omics data and identified biological features that appear to be associated with liver fat accumulation. In general, the clinical variables showed better prediction ability than the complex omics variables. However, the combination of omics and clinical variables yielded the highest accuracy. We have incorporated the developed clinical models into a web interface (see: https://www.predictliverfat.org/) and made it available to the community. Trial registration ClinicalTrials.gov NCT03814915.
Author(s): Naeimeh Atabaki-Pasdar 1, Mattias Ohlsson 2,3, Ana Viñuela 4,5,6, Francesca Frau 7, Hugo Pomares-Millan 1, Mark Haid 8, Angus G. Jones 9, E. Louise Thomas 10, Robert W. Koivula [...]