Association of plasma leptin, homocysteine and nitric oxide levels with the presence and unstability of coronary artery disease

• Published in: Biomarkers in medicine Vol. 8; no. 3; pp. 405 - 412
• Main Authors: Basati, Gholam, Razavi, Amirnader Emami, Abdi, Soheila, Sarrafzedegan, Nizal
• Format: Journal Article
• Language: English
• Published: England Future Medicine Ltd 01.03.2014
• Subjects: Aged; Angina pectoris; Angina, Stable - blood; Angina, Stable - complications; Angina, Stable - diagnosis; Angina, Unstable - blood; Angina, Unstable - complications; Angina, Unstable - diagnosis; CAD; Cholesterol; Chromatography, High Pressure Liquid; Coronary Artery Disease - blood; Coronary Artery Disease - etiology; Coronary vessels; Diagnosis; Female; Genetic aspects; Heart attacks; Homocysteine; Homocysteine - blood; Humans; Immunoenzyme Techniques; Leptin; Leptin - blood; Male; Middle Aged; nitric oxide; Nitric Oxide - blood; Odds Ratio; Physiological aspects; Plasma; Risk Factors; ROC Curve; Rodents; Spectrometry, Fluorescence; stable; unstable; Iran
• ISSN: 1752-0363; 1752-0371; 1752-0371
• DOI: 10.2217/bmm.13.131

Leptin and total homocysteine (tHcy) may participate in the pathogenesis of coronary artery disease (CAD) through nitric oxide (NO) depletion. We sought to investigate whether leptin, tHcy and NO are suitable predictors of CAD. This study contained 50 control subjects and 50 stable and 50 unstable angina patients. Plasma leptin, tHcy and NO levels were determined using enzyme immunoassay, HPLC fluorescence and spectrophotometric methods, respectively. Other conventional risk factors were also determined. Leptin and tHcy levels were highest in unstable angina patients, followed by stable angina patients and then controls (p < 0.001). Controls had significantly higher NO than patients (p <0.001). Leptin and tHcy had a positive and NO a negative association with the presence of CAD. Some athrogenic effects of leptin may be mediated by affecting tHcy and NO levels. Plasma leptin, tHcy and NO levels showed significant contribution to CAD prediction and discrimination.