Publications by authors named "K Andrzejczyk"

Circulating proteins may provide insights into the varying biological mechanisms involved in heart failure (HF) with preserved ejection fraction (HFpEF) and reduced ejection fraction (HFrEF). We aimed to identify specific proteomic patterns for HF, by comparing proteomic profiles across the ejection fraction spectrum. We investigated 4210 circulating proteins in 739 patients with normal (Stage A/Healthy) or elevated (Stage B) filling pressures, HFpEF, or ischemic HFrEF (iHFrEF).

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Background: Although anxiety and depression have been associated with adverse outcomes in chronic heart failure (HF), data on temporal evolution of these symptoms are scarce. We aimed to investigate the association between repeatedly measured depression and anxiety symptoms and clinical outcome in chronic HF patients.

Methods: In this prospective observational study, outpatients with chronic HF were included and followed-up for a maximum of 2.

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Aims: Examining the systemic biological processes in the heterogeneous syndrome of heart failure with reduced ejection fraction (HFrEF), as reflected by circulating proteins, in relation to echocardiographic characteristics, may provide insights into heart failure pathophysiology. We investigated the link of 4210 repeatedly measured circulating proteins with repeatedly measured echocardiographic parameters as well as with elevated left atrial pressure (LAP), in patients with HFrEF, to provide insights into underlying mechanisms.

Methods And Results: In 173 patients with HFrEF, we performed 6-monthly echocardiography and trimonthly blood sampling during a median follow-up of 2.

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Background: Liver dysfunction contributes to worse clinical outcomes in heart failure (HF) patients. However, studies exploring temporal evolutions of liver function parameters in chronic HF (CHF) pa- tients, and their associations with clinical outcome, are scarce. Detailed temporal patterns of alkaline phosphatase (ALP), gamma glutamyl transpeptidase (GGTP), total bilirubin (TBIL) and albumin (ALB) were investigated, and their relation with clinical outcome, in patients with stable CHF with reduced ejection fraction.

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Article Synopsis
  • The study investigates the connection between genetic variants of the TNNI3K gene and various heart conditions like dilated cardiomyopathy (DCM) and cardiac conduction disease, emphasizing the inconsistent findings in previous research.
  • Researchers performed genetic testing on patients with heart issues and used data from the UK Biobank, identifying a higher occurrence of rare variants in DCM patients and linking specific novel variants to DCM and atrial fibrillation.
  • The results suggest that certain rare variants enhance the autophosphorylation of TNNI3K, indicating a potential mechanism for their role in causing heart diseases, while one variant appeared harmless due to reduced autophosphorylation activity. *
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