Circulating Endothelial Progenitor Cells in Patients with Heart Failure with Preserved versus Reduced Ejection Fraction.
Isr Med Assoc J
; 23(6): 364-368, 2021 Jun.
Article
em En
| MEDLINE
| ID: mdl-34155850
ABSTRACT
BACKGROUND:
Heart failure with preserved ejection fraction (HFpEF) is a common clinical entity, with a mechanism that appears to involve endothelial dysfunction of the cardiac microcirculation. Endothelial progenitor cells (EPC) are bone marrow derived cells that are able to differentiate into functional endothelial cells and participate in endothelial surface repair.OBJECTIVES:
To compare the level and function of EPCs in patients with HFpEF compared with heart failure with reduced ejection fraction (HFrEF) and control subjects.METHODS:
We enrolled 21 patients with HFpEF (LVEF ≥ 50%, age 74.5 ± 9.9 years, 43% men, 48% diabetes), 20 patients with HFrEF (LVEF < 40%, age 70 ± 11.5 years, 90% men, 60% diabetes), and 11 control subjects with cardiovascular risk factors (age 53.3 ± 6.1years, 90% men, 64% diabetes). Circulating EPC levels were evaluated by expression of vascular endothelial growth factor receptor-2 (VEGFR-2), CD34, and CD133 by flow-cytometry. EPCs colony forming units (CFUs) were quantified after 7 days in culture.RESULTS:
The proportion of cells that co-expressed VEGFR-2 and CD34 or VEGFR-2 and CD133 was similar among the HFpEF and HFrEF groups, and significantly lower than in the control group. The number of EPC-CFUs was also similar among the two heart failure groups and significantly lower than the control group.CONCLUSIONS:
Patients with HFpEF, like HFrEF, have significant reduction in EPC level and function.
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Base de dados:
MEDLINE
Assunto principal:
Volume Sistólico
/
Endotélio Vascular
/
Receptor 2 de Fatores de Crescimento do Endotélio Vascular
/
Células Progenitoras Endoteliais
/
Antígeno AC133
/
Insuficiência Cardíaca
Tipo de estudo:
Etiology_studies
/
Risk_factors_studies
Limite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Isr Med Assoc J
Assunto da revista:
MEDICINA
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Israel