TY - JOUR TI - Vascular conditioning prevents adverse left ventricular remodelling after acute myocardial infarction: a randomised remote conditioning study AU - Ikonomidis, I. AU - Vlastos, D. AU - Andreadou, I. AU - Gazouli, M. AU - Efentakis, P. AU - Varoudi, M. AU - Makavos, G. AU - Kapelouzou, A. AU - Lekakis, J. AU - Parissis, J. AU - Katsanos, S. AU - Tsilivarakis, D. AU - Hausenloy, D.J. AU - Alexopoulos, D. AU - Cokkinos, D.V. AU - Bøtker, H.-E. AU - Iliodromitis, E.K. JO - Basic Research in Cardiology PY - 2021 VL - 116 TODO - 1 SP - null PB - Springer Science and Business Media Deutschland GmbH SN - 0300-8428, 1435-1803 TODO - 10.1007/s00395-021-00851-1 TODO - acetylsalicylic acid; beta adrenergic receptor blocking agent; clopidogrel; dipeptidyl carboxypeptidase inhibitor; enoxaparin; heparin; hydroxymethylglutaryl coenzyme A reductase inhibitor; malonaldehyde; microRNA; miR 144; miR 150; miR 208; miR 21; nitrate; nitrite; unclassified drug; autacoid; circulating microRNA; microRNA, acute heart infarction; adult; arterial stiffness; Article; carotid-femoral pulse wave velocity; controlled study; female; glycocalyx; heart left ventricle endsystolic volume; heart left ventricle volume; heart ventricle remodeling; human; major clinical study; male; oxidative stress; percutaneous coronary intervention; randomized controlled trial; remote ischemic conditioning; ST segment elevation myocardial infarction; adverse event; aged; artery; blood; blood flow; diagnostic imaging; endothelium cell; Greece; heart left ventricle function; ischemic postconditioning; metabolism; middle aged; myocardial ischemia reperfusion injury; pathophysiology; percutaneous coronary intervention; prospective study; time factor; treatment outcome; upper limb; vascularization, Adult; Aged; Arteries; Circulating MicroRNA; Endothelial Cells; Female; Glycocalyx; Greece; Humans; Inflammation Mediators; Ischemic Postconditioning; Male; MicroRNAs; Middle Aged; Myocardial Reperfusion Injury; Oxidative Stress; Percutaneous Coronary Intervention; Prospective Studies; Regional Blood Flow; ST Elevation Myocardial Infarction; Time Factors; Treatment Outcome; Upper Extremity; Vascular Stiffness; Ventricular Function, Left; Ventricular Remodeling TODO - Aims: Remote ischemic conditioning (RIC) alleviates ischemia–reperfusion injury via several pathways, including micro-RNAs (miRs) expression and oxidative stress modulation. We investigated the effects of RIC on endothelial glycocalyx, arterial stiffness, LV remodelling, and the underlying mediators within the vasculature as a target for protection. Methods and results: We block-randomised 270 patients within 48 h of STEMI post-PCI to either one or two cycles of bilateral brachial cuff inflation, and a control group without RIC. We measured: (a) the perfusion boundary region (PBR) of the sublingual arterial microvessels to assess glycocalyx integrity; (b) the carotid-femoral pulse wave velocity (PWV); (c) miR-144,-150,-21,-208, nitrate-nitrite (NOx) and malondialdehyde (MDA) plasma levels at baseline (T0) and 40 min after RIC onset (T3); and (d) LV volumes at baseline and after one year. Compared to baseline, there was a greater PBR and PWV decrease, miR-144 and NOx levels increase (p < 0.05) at T3 following single- than double-cycle inflation (PBR:ΔT0–T3 = 0.249 ± 0.033 vs 0.126 ± 0.034 μm, p = 0.03 and PWV:0.4 ± 0.21 vs −1.02 ± 0.24 m/s, p = 0.03). Increased miR-150,-21,-208 (p < 0.05) and reduced MDA was observed after both protocols. Increased miR-144 was related to PWV reduction (r = 0.763, p < 0.001) after the first-cycle inflation in both protocols. After one year, single-cycle RIC was associated with LV end-systolic volume reduction (LVESV) > 15% (odds-ratio of 3.75, p = 0.029). MiR-144 and PWV changes post-RIC were interrelated and associated with LVESV reduction at follow-up (r = 0.40 and 0.37, p < 0.05), in the single-cycle RIC. Conclusion: RIC evokes “vascular conditioning” likely by upregulation of cardio-protective microRNAs, NOx production, and oxidative stress reduction, facilitating reverse LV remodelling. Clinical Trial Registration: http://www.clinicaltrials.gov. Unique identifier: NCT03984123. © 2021, Springer-Verlag GmbH, DE part of Springer Nature. ER -