RT Journal Article T1 MicroRNA-19b is a potential biomarker of increased myocardial collagen cross-linking in patients with aortic stenosis and heart failure. A1 Beaumont, Javier A1 López, Begoña A1 Ravassa, Susana A1 Hermida, Nerea A1 San José, Gorka A1 Gallego, Idoia A1 Valencia, Félix A1 Gómez-Doblas, Juan José A1 de Teresa, Eduardo A1 Díez, Javier A1 González, Arantxa AB This study analyzed the potential associations of 7 myocardial fibrosis-related microRNAs with the quality of the collagen network (e.g., the degree of collagen fibril cross-linking or CCL) and the enzyme lysyl oxidase (LOX) responsible for CCL in 28 patients with severe aortic stenosis (AS) of whom 46% had a diagnosis of chronic heart failure (HF). MicroRNA expression was analyzed in myocardial and blood samples. From the studied microRNAs only miR-19b presented a direct correlation (p  YR 2017 FD 2017-01-16 LK http://hdl.handle.net/10668/10778 UL http://hdl.handle.net/10668/10778 LA en DS RISalud RD Apr 10, 2025