Secretoneurin levels are higher in dilated cardiomyopathy than in ischaemic cardiomyopathy: preliminary results

Autor: Jiří Plášek, Jozef Dodulík, Marie Lazárová, David Stejskal, Zdeněk Švagera, Nela Chobolová, Patrik Šulc, Lukáš Evin, Dana Purová, Jan Václavík
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Frontiers in Cardiovascular Medicine, Vol 10 (2024)
Druh dokumentu: article
ISSN: 2297-055X
DOI: 10.3389/fcvm.2023.1297900
Popis: BackgroundSecretoneurin (SN) is a neuropeptide with potential utility as a biomarker of cardiovascular episodes. The main effect of SN is mediated through its inhibition of calmodulin-dependent kinase II (CaMKII), which influences calcium handling. We aimed to associate the levels of SN in plasma with different causes of heart failure.MethodsWe prospectively enrolled consecutive patients with ischaemic (ICM) and dilated (DCM) cardiomyopathy from the outpatient heart failure clinic and healthy individuals. SN was analysed from venous blood by use of the ELISA method. SN plasma levels were compared in DCM, ICM and healthy individuals with non-parametric tests.ResultsA total of 53 patients (81.1% male, 18.9% female; mean age 67.9 ± 12.6 years) and 34 healthy individuals (38% male, 62% female) were included in the analysis. Plasma SN levels were significantly higher in the dilated cardiomyopathy (38.8 ± 27 pmol/L) as compared with the ischaemic cardiomyopathy (19.7 ± 22.6 pmol/L) group (P = 0.006). There was no significant difference between females vs. males (27.1 ± 23 vs. 25.5 ± 26.2 pmol/L, P = NS). Plasma SN levels allowed DCM and ICM to be differentiated with 88% sensitivity and 61% specificity (P = 0.007), the cut of value is 13.3 pmol/L. Plasma SN levels differed significantly between healthy volunteers and both ICM (P
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