20.500.12556/RUL-152338 HFpEF and atrial fibrillation the enigmatic interplay of dysmetabolism, biomarkers, and vascular endothelial dysfunction Background: Heart failure with preserved ejection fraction (HFpEF) has a complex pathophysiology that encompasses systemic proinflammatory state and dysregulated levels of cardiometabolic and oxidative stress biomarkers. The prevalence of both HFpEF and atrial fibrillation (AF) is continuously rising, especially in the elderly. The aim of our study was to explore if there were any differences in biomarker levels and vascular function in the elderly patients with HFpEF with and without AF and to assess interconnections between clinically relevant biomarkers and cardiac and vascular function. Methods: This was a cross-sectional study of patients ≥ 65 years with HFpEF who were divided into 2 groups based on the presence or absence of AF. We have sonographically assessed echocardiographic parameters of left ventricular systolic and diastolic function and the peripheral vascular function parameters, namely, pulse wave velocity (PWV) and flow-mediated dilation (FMD). NT-proBNP, irisin, leptin, adiponectin, insulin-like growth factor 1 (IGF-1), and malondialdehyde (MDA) blood levels were determined. Results: Fifty-two patients (mean age 80 ± 7 years, 67% females) were included. Patients with HFpEF and AF had significantly lower levels of irisin (median 4.75 vs. 13.5 ng/mL, p = 0.007), leptin (median 9.5 vs. 15.0 ng/L, p = 0.023), and MDA (median 293 vs. 450 ng/mL, p = 0.017) and significantly higher values of NT-proBNP (median 2365 vs. 529 ng/L, p < 0.001) but not vascular function parameters, as compared to HFpEF patients without AF. MDA was significantly correlated with diastolic function (r = 0.395, p = 0.007) and FMD (r = 0.394, p = 0.011), while adiponectin was inversely associated with FMD (r = –0.325, p = 0.038) and left ventricular ejection fraction (r = –0.319, p = 0.029). Conclusions: Our results have demonstrated that patients with HFpEF and AF have significantly lower leptin, irisin, and MDA levels compared to patients with HFpEF but without AF. These results offer new insights into the complexity of vascular function and cardiometabolic and oxidative stress biomarkers in the context of HFpEF, AF, and aging. atrial fibrillation heart failure ejection fraction atrijska fibrilacija srčno popuščanje iztisni delež true false true Angleški jezik Slovenski jezik Članek v reviji 2023-11-21 10:08:28 2023-11-21 10:08:32 2023-11-22 03:38:21 0000-00-00 00:00:00 2022 0 0 7 str. Vol. 2022, art. 9539676 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 616.1 1875-8630 10.1155/2022/9539676 141947139 RAZ_Bosanac_Jure_2022.pdf RAZ_Bosanac_Jure_2022.pdf 1 8445A6DFDDED809BAFFB76F4AB0F483D f85715b1715772c464fbe716b74aa95b00dca8698abf830f1f55e7e12988f143 8baddc72-884d-11ee-8d2e-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=177797 https://www.hindawi.com/journals/dm/2022/9539676/ 0 afd63628-884d-11ee-8d2e-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=177798 Medicinska fakulteta 0 0 0