Extraction of Reduced Infrared Biomarker Signatures for the Stratification of Patients Affected by Parkinson’s Disease: An Untargeted Metabolomic Approach

Autor: Kateryna Tkachenko, María Espinosa, Isabel Esteban-Díez, José M. González-Sáiz, Consuelo Pizarro
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Chemosensors, Vol 10, Iss 6, p 229 (2022)
Druh dokumentu: article
ISSN: 2227-9040
DOI: 10.3390/chemosensors10060229
Popis: An untargeted Fourier transform infrared (FTIR) metabolomic approach was employed to study metabolic changes and disarrangements, recorded as infrared signatures, in Parkinson’s disease (PD). Herein, the principal aim was to propose an efficient sequential classification strategy based on SELECT-LDA, which enabled optimal stratification of three main categories: PD patients from subjects with Alzheimer’s disease (AD) and healthy controls (HC). Moreover, sub-categories, such as PD at the early stage (PDI) from PD in the advanced stage (PDD), and PDD vs. AD, were stratified. Every classification step with selected wavenumbers achieved 90.11% to 100% correct assignment rates in classification and internal validation. Therefore, selected metabolic signatures from new patients could be used as input features for screening and diagnostic purposes.
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