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Circulating Oxidized Low‐Density Lipoprotein is a Strong Risk Factor for the Early Stage of Coronary Heart Disease
Author(s) -
Zhang Qiang,
Ai Yongshun,
Dong Huiqiu,
Wang Junsong,
Xu Li
Publication year - 2019
Publication title -
iubmb life
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.132
H-Index - 113
eISSN - 1521-6551
pISSN - 1521-6543
DOI - 10.1002/iub.1966
Subject(s) - medicine , unstable angina , myocardial infarction , lipoprotein , coronary heart disease , cholesterol , malondialdehyde , low density lipoprotein , cardiology , risk factor , high density lipoprotein , lipid peroxide , angina , oxidative stress , lipid peroxidation
This study aimed to detect the circulating oxidized low‐density lipoprotein (ox‐LDL) levels of controls and patients with stable angina pectoris (SAP), unstable angina pectoris (UAP), and acute myocardial infarction (AMI) and also to investigate the correlation with the severity of coronary heart disease (CHD). Plasma levels of circulating ox‐LDL‐4E6, malondialdehyde (MDA), high‐sensitivity C‐reactive protein (hs‐CRP), total cholesterol, high‐density lipoprotein cholesterol, LDL cholesterol, apoprotein A, apoprotein B, and lipoprotein (a) (Lp(a)) were measured in 99 participants who underwent coronary angiography. The plasma ox‐LDL level was significantly higher in patients with CHD than in controls ( P = 0.000). However, it was lower in the UAP and AMI groups than in the SAP group ( P = 0.000). The lipid peroxide level (MDA) showed a significant difference among all groups ( P = 0.000). It increased significantly in patients with CHD. The Lp(a) and hs‐CRP levels were significantly higher in patients with CHD ( P = 0.000 and 0.000, respectively). No difference in Lp(a) was found among the SAP, UAP, and AMI groups ( P = 0.296). In patients with CHD, the plasma ox‐LDL correlated negatively with hs‐CRP ( P = 0.011), and serum MDA correlated positively with hs‐CRP ( P = 0.004). The plasma ox‐LDL could be used as a strong risk factor for the early stage but not the advanced stage of CHD. Hs‐CRP may bound and transfer ox‐LDL to macrophages. © 2018 IUBMB Life, 71(1):277–282, 2019