| Autor: |
Roberta D'Assante, Michele Arcopinto, Giuseppe Rengo, Andrea Salzano, Marion Walser, Giuseppina Gambino, Maria Gaia Monti, Leonardo Bencivenga, Alberto M. Marra, David N. Åberg, Carlo De Vincentiis, Andrea Ballotta, Eduardo Bossone, Jörgen Isgaard, Antonio Cittadini |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
ESC Heart Failure, Vol 8, Iss 2, Pp 1681-1686 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2055-5822 |
| DOI: |
10.1002/ehf2.13067 |
| Popis: |
Abstract Aims Limited data are available regarding cardiac expression of molecules involved in heart failure (HF) pathophysiology. The majority of the studies have focused on end‐stage HF with reduced ejection fraction (HFrEF) without comparison with healthy subjects, while no data are available with regard to HF with preserved ejection fraction (HFpEF). HFpEF is a condition whose multiple pathophysiological mechanisms are still not fully defined, with many proposed hypotheses remaining speculative due to limited access to human heart tissue. This study aimed at evaluating cardiac expression levels of key genes of interest in human biopsy samples from patients affected with HFrEF and HFpEF in order to possibly point out distinct phenotypes. Methods and results Total RNA was extracted from left ventricular cardiac biopsies collected from stable patients with HFrEF (n = 6) and HFpEF (n = 7) and healthy subjects (n = 9) undergoing elective cardiac surgery for valvular replacement, mitral valvuloplasty, aortic surgery, or coronary artery bypass. Real‐time PCR was performed to evaluate the mRNA expression levels of genes involved in somatotropic axis regulation [IGF‐1, IGF‐1 receptor (IGF‐1R), and GH receptor (GHR)], in adrenergic signalling (GRK2, GRK5, ADRB1, and ADRB2), in myocardial calcium handling (SERCA2), and in TNF‐α. Patients with HFrEF and HFpEF showed reduced serum IGF‐1 circulating levels when compared with controls (102 ± 35.6, 138 ± 11.5, and 160 ± 13.2 ng/mL, P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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