Annals of clinical biochemistry · 2013
Smaller HDL particles are associated with absence of obstructive coronary artery disease in stable angina pectoris patients.
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Zeljkovic Aleksandra, Vekic Jelena, Spasojevic-Kalimanovska Vesna, Jelic-Ivanovic Zorana, Kalimanovska-Ostric Dimitra, Memon Lidija, Bogavac-Stanojevic Natasa, Topic Aleksandra, Spasic Slavica
Аннотация
BACKGROUND: A research on novel cardiovascular risk factors is mainly focused on patients with clinically verified coronary artery disease (CAD), while less is known about their presence in symptomatic patients, but without angiographically proven occlusion of coronary arteries. The aim of this study was to compare plasma low-density lipoprotein (LDL) and high-density lipoprotein (HDL) size and subclasses in stable angina patients with and without significant obstructive CAD.
METHODS: LDL and HDL subclasses were analysed in 100 stable angina patients with ≥50% of obstruction and 40 patients with less than 50% of luminal narrowing, as assessed by coronary angiography.
RESULTS: Patients with <50% of obstruction had reduced mean HDL size and higher proportion of small HDL particles (P < 0.05). HDL size and proportion of small HDL particles were significant and independent predictors of obstructive CAD (P < 0.05, respectively).
CONCLUSIONS: Stable angina patients with <50% of coronary obstruction have more favourable HDL subclasses distribution than patients with significant coronary stenosis.
METHODS: LDL and HDL subclasses were analysed in 100 stable angina patients with ≥50% of obstruction and 40 patients with less than 50% of luminal narrowing, as assessed by coronary angiography.
RESULTS: Patients with <50% of obstruction had reduced mean HDL size and higher proportion of small HDL particles (P < 0.05). HDL size and proportion of small HDL particles were significant and independent predictors of obstructive CAD (P < 0.05, respectively).
CONCLUSIONS: Stable angina patients with <50% of coronary obstruction have more favourable HDL subclasses distribution than patients with significant coronary stenosis.