Dataset Information

Machine learning for classification of hypertension subtypes using multi-omics: A multi-centre, retrospective, data-driven study.

ABSTRACT:

Background

Arterial hypertension is a major cardiovascular risk factor. Identification of secondary hypertension in its various forms is key to preventing and targeting treatment of cardiovascular complications. Simplified diagnostic tests are urgently required to distinguish primary and secondary hypertension to address the current underdiagnosis of the latter.

Methods

This study uses Machine Learning (ML) to classify subtypes of endocrine hypertension (EHT) in a large cohort of hypertensive patients using multidimensional omics analysis of plasma and urine samples. We measured 409 multi-omics (MOmics) features including plasma miRNAs (PmiRNA: 173), plasma catechol O-methylated metabolites (PMetas: 4), plasma steroids (PSteroids: 16), urinary steroid metabolites (USteroids: 27), and plasma small metabolites (PSmallMB: 189) in primary hypertension (PHT) patients, EHT patients with either primary aldosteronism (PA), pheochromocytoma/functional paraganglioma (PPGL) or Cushing syndrome (CS) and normotensive volunteers (NV). Biomarker discovery involved selection of disease combination, outlier handling, feature reduction, 8 ML classifiers, class balancing and consideration of different age- and sex-based scenarios. Classifications were evaluated using balanced accuracy, sensitivity, specificity, AUC, F1, and Kappa score.

Findings

Complete clinical and biological datasets were generated from 307 subjects (PA=113, PPGL=88, CS=41 and PHT=112). The random forest classifier provided ∼92% balanced accuracy (∼11% improvement on the best mono-omics classifier), with 96% specificity and 0.95 AUC to distinguish one of the four conditions in multi-class ALL-ALL comparisons (PPGL vs PA vs CS vs PHT) on an unseen test set, using 57 MOmics features. For discrimination of EHT (PA + PPGL + CS) vs PHT, the simple logistic classifier achieved 0.96 AUC with 90% sensitivity, and ∼86% specificity, using 37 MOmics features. One PmiRNA (hsa-miR-15a-5p) and two PSmallMB (C9 and PC ae C38:1) features were found to be most discriminating for all disease combinations. Overall, the MOmics-based classifiers were able to provide better classification performance in comparison to mono-omics classifiers.

Interpretation

We have developed a ML pipeline to distinguish different EHT subtypes from PHT using multi-omics data. This innovative approach to stratification is an advancement towards the development of a diagnostic tool for EHT patients, significantly increasing testing throughput and accelerating administration of appropriate treatment.

Funding

European Union's Horizon 2020 Research and Innovation Programme under Grant Agreement No. 633983, Clinical Research Priority Program of the University of Zurich for the CRPP HYRENE (to Z.E. and F.B.), and Deutsche Forschungsgemeinschaft (CRC/Transregio 205/1).

SUBMITTER: Reel PS

PROVIDER: S-EPMC9520210 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature

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Publications

Machine learning for classification of hypertension subtypes using multi-omics: A multi-centre, retrospective, data-driven study.

Reel Parminder S PS Reel Smarti S van Kralingen Josie C JC Langton Katharina K Lang Katharina K Erlic Zoran Z Larsen Casper K CK Amar Laurence L Pamporaki Christina C Mulatero Paolo P Blanchard Anne A Kabat Marek M Robertson Stacy S MacKenzie Scott M SM Taylor Angela E AE Peitzsch Mirko M Ceccato Filippo F Scaroni Carla C Reincke Martin M Kroiss Matthias M Dennedy Michael C MC Pecori Alessio A Monticone Silvia S Deinum Jaap J Rossi Gian Paolo GP Lenzini Livia L McClure John D JD Nind Thomas T Riddell Alexandra A Stell Anthony A Cole Christian C Sudano Isabella I Prehn Cornelia C Adamski Jerzy J Gimenez-Roqueplo Anne-Paule AP Assié Guillaume G Arlt Wiebke W Beuschlein Felix F Eisenhofer Graeme G Davies Eleanor E Zennaro Maria-Christina MC Jefferson Emily E

EBioMedicine 20220927

<h4>Background</h4>Arterial hypertension is a major cardiovascular risk factor. Identification of secondary hypertension in its various forms is key to preventing and targeting treatment of cardiovascular complications. Simplified diagnostic tests are urgently required to distinguish primary and secondary hypertension to address the current underdiagnosis of the latter.<h4>Methods</h4>This study uses Machine Learning (ML) to classify subtypes of endocrine hypertension (EHT) in a large cohort of ...[more]

PMID: 36179553

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Dataset Information

Machine learning for classification of hypertension subtypes using multi-omics: A multi-centre, retrospective, data-driven study.

Background

Methods

Findings

Interpretation

Funding

Publications

Machine learning for classification of hypertension subtypes using multi-omics: A multi-centre, retrospective, data-driven study.

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