Disparate miRNA expression in serum and plasma of patients with acute myocardial infarction: a systematic and paired comparative analysis
Despite the promising value of miRNAs in the diagnostic and prognostic of cardiovascular disease (CVD), recent meta-analyses did not support their potential. Methodological variances in studies may interfere with miRNA profle and afect their results. This study determines if the blood starting mater...
| Autores: | , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/186907 |
| Acceso en línea: | https://hdl.handle.net/2445/186907 |
| Access Level: | acceso abierto |
| Palabra clave: | Vellesa Micro RNAs Infart de miocardi Plasma sanguini Old age MicroRNAs Myocardial infarction Blood plasma |
| Sumario: | Despite the promising value of miRNAs in the diagnostic and prognostic of cardiovascular disease (CVD), recent meta-analyses did not support their potential. Methodological variances in studies may interfere with miRNA profle and afect their results. This study determines if the blood starting material is a source of variance in miRNA profle by performing a paired comparison in plasma and serum of the expression of primary miRNAs associated with CVD. Circulating miRNA yield was similar in both plasma and serum, although a signifcant increase was observed in patients with Non-ST-elevation myocardial infarction (NSTEMI) compared to control volunteers. When normalized by the expression of miR-484, diferent patterns of miRNA expression between serum and plasma. Although NSTEMI modifed the expression of miR-1 and miR-208 in both serum and plasma, plasma displayed a higher variance than serum (Levene's test p<0.01). For miR-133a and miR-26a, diferences were only detected in serum (p=0.0240), and conversely, miR-499a showed diferences only in plasma of NSTEMI (p=0.001). Interestingly, miR-21 showed an opposite pattern of expression, being increased in serum (2−ΔΔCt : 5.7, p=0.0221) and decreased in plasma (2−ΔΔCt : 0.5, p=0.0107). Plasma and serum exhibit diferent patterns of circulating miRNA expression in NSTEMI and suggest that results from studies with diferent starting material could not be comparable. |
|---|