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Archives 2020
Myanmar Health Sciences Research Journal
Volume 32, Number 1
TITLE: Serum High Density Lipoprotein Subfractions and Other Lipid Parameters in Coronary Artery Diseases
AUTHOR: Hein Ko Oo, Sint Sint Tun, Theingi Myint & Kyu Kyu Maung
SOURCE: Myanmar Health Sciences Research Journal, 2020; 32(1):58-65
ABSTRACT:
Conventionally, high density lipoprotein cholesterol (HDL-C) level was measured in prediction of coronary artery disease (CAD). Because HDL particles are continuously remodeled in terms of lipid and apolipoprotein composition, the distribution of cholesterol in HDL subclasses; HDL2- Cholesterol (HDL2-C) and HDL3-Cholesterol (HDL3-C) levels are more predictive values for occurrence of CAD than total HDL-C level. The aim of this study was to investigate the HDL2-C and HDL3-C levels in patients who had undergone coronary angiogram in Yangon General Hospital and to investigate the association between serum HDL2-C level, HDL3-C level and occurrence of CAD. Pre-procedural fasting serum were collected from 132 patients and analyzed for HDL2-C, HDL3-C, total cholesterol (TC), total HDL cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C) and triglyceride (TG). The TC, HDL-C and TG levels were determined by enzymatic colorimetric method and LDL-C levels were calculated from the above-mentioned lipid parameters. The median serum HDL-C levels were significantly lower in CAD patients (35.73 mg/dl) than patients with normal angiogram (40.95 mg/dl). The median serum HDL2-C levels were 11.93 mg/dl in significant CAD patients and 18.39 mg/dl in patients with normal angiogram. The median serum HDL3-C levels were 22.54 mg/dl in significant CAD patients and 22.93 mg/dl in patients with normal angiogram. Patients with significant CAD had significantly lower median serum HDL2-C level than patients with normal angiogram (p<0.01). There was no significant difference in median HDL3-C level between patients with significant CAD and patients with normal angiogram (p>0.05). There was significant association between CAD and decreased level of HDL2-C (p<0.05). The fall in serum HDL 2-C level is more likely to be predictive of CAD risk than HDL3-C level. Therefore, low serum HDL2-C level is associated with increased CAD risk.
SUBJECT HEADINGS: HDL2 cholesterol, HDL subfractions, Coronary artery disease
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