Oxidized low-density lipoprotein in postmenopausal women

Area of Science:

• Cardiovascular Medicine
• Lipid Metabolism
• Gerontology

Background:

• Oxidized low-density lipoprotein (oxLDL) is a key driver of atherosclerosis and cardiovascular disease.
• Postmenopausal women face increased cardiovascular disease risk due to altered lipid metabolism.
• The prevalence and clinical associations of oxLDL in this demographic require further investigation.

Purpose of the Study:

• To determine the prevalence of serum oxLDL in postmenopausal women.
• To identify clinical and laboratory features associated with oxLDL in postmenopausal women.

Main Methods:

• 533 postmenopausal women underwent clinical examination, questionnaires, and carotid artery ultrasound.
• Serum oxLDL concentration was quantified using proton nuclear magnetic resonance (NMR) spectroscopy.
• Associations between oxLDL and clinical/laboratory parameters were analyzed.

Main Results:

• oxLDL was detected in 12.4% of the study population.
• Postmenopausal women with oxLDL showed a higher prevalence of atherosclerotic plaques.
• Higher high-density lipoprotein, impaired glucose tolerance, and diastolic blood pressure (DBP) were independently associated with oxLDL occurrence.

Conclusions:

• oxLDL can be reliably quantified in large cohorts of postmenopausal women using proton NMR spectroscopy.
• oxLDL may serve as a biomarker for early atherosclerotic changes in postmenopausal women.
• Higher blood urea concentrations were inversely associated with oxLDL levels.