Robin P F Dullaart1, Wijtske Annema2, René A Tio3, Uwe J F Tietge2. 1. Department of Endocrinology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands. Electronic address: r.p.f.dullaart@umcg.nl. 2. Department of Pediatrics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands. 3. Department of Cardiology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands.
Abstract
BACKGROUND: Intrinsic functional properties of high density lipoproteins (HDL) are considered to be physiologically important for atheroprotection. We compared the HDL anti-inflammatory capacity between patients with acute myocardial infarction (MI) and patients with non-cardiac chest pain, and prospectively determined the association of new major adverse cardiovascular events (MACE) with this metric of HDL function. METHODS: A prospective study was carried out in 93 patients referred for acute chest pain (65 patients with acute MI). The HDL anti-inflammatory capacity was determined as the ability to suppress tumor necrosis factor-α-induced vascular cell adhesion molecule-1 mRNA expression in endothelial cells in vitro. RESULTS: Acute MI at admission was associated with impaired HDL anti-inflammatory capacity (p=0.001), even after adjustment for HDL cholesterol and apolipoprotein A-I (p=0.003). Twenty nine MACE were ascertained during a median follow-up of 1210 (910-1679) days. New MACE was associated with impaired HDL anti-inflammatory capacity (hazard ratio: 1.80 (1.17-2.77) per SD change, p=0.007) in age, sex, HDL cholesterol and apolipoprotein-AI adjusted analysis. CONCLUSIONS: The ability of HDL to attenuate endothelial inflammation is impaired in acute MI, and this metric of HDL function may serve as a predictor of new MACE, even independent of HDL cholesterol and apolipoprotein A-I.
BACKGROUND: Intrinsic functional properties of high density lipoproteins (HDL) are considered to be physiologically important for atheroprotection. We compared the HDL anti-inflammatory capacity between patients with acute myocardial infarction (MI) and patients with non-cardiac chest pain, and prospectively determined the association of new major adverse cardiovascular events (MACE) with this metric of HDL function. METHODS: A prospective study was carried out in 93 patients referred for acute chest pain (65 patients with acute MI). The HDL anti-inflammatory capacity was determined as the ability to suppress tumor necrosis factor-α-induced vascular cell adhesion molecule-1 mRNA expression in endothelial cells in vitro. RESULTS: Acute MI at admission was associated with impaired HDL anti-inflammatory capacity (p=0.001), even after adjustment for HDL cholesterol and apolipoprotein A-I (p=0.003). Twenty nine MACE were ascertained during a median follow-up of 1210 (910-1679) days. New MACE was associated with impaired HDL anti-inflammatory capacity (hazard ratio: 1.80 (1.17-2.77) per SD change, p=0.007) in age, sex, HDL cholesterol and apolipoprotein-AI adjusted analysis. CONCLUSIONS: The ability of HDL to attenuate endothelial inflammation is impaired in acute MI, and this metric of HDL function may serve as a predictor of new MACE, even independent of HDL cholesterol and apolipoprotein A-I.
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