HFrEF subphenotypes based on 4210 repeatedly measured circulating proteins are driven by different biological mechanisms.

ABSTRACT:

Background

HFrEF is a heterogenous condition with high mortality. We used serial assessments of 4210 circulating proteins to identify distinct novel protein-based HFrEF subphenotypes and to investigate underlying dynamic biological mechanisms. Herewith we aimed to gain pathophysiological insights and fuel opportunities for personalised treatment.

Methods

In 382 patients, we performed trimonthly blood sampling during a median follow-up of 2.1 [IQR:1.1-2.6] years. We selected all baseline samples and two samples closest to the primary endpoint (PEP; composite of cardiovascular mortality, HF hospitalization, LVAD implantation, and heart transplantation) or censoring, and applied an aptamer-based multiplex proteomic approach. Using unsupervised machine learning methods, we deriv

SUBMITTER: Petersen TB 

PROVIDER: S-EPMC10279550 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature