BACKGROUND: Recently, serum lipopolysaccharide-binding protein (LBP) has been closely associated with coronary artery disease. Here, we aimed to investigate the possible relationship between serum LBP and markers of atherosclerosis. METHODS: Serum LBP and carotid intima media thickness (C-IMT) were measured in 332 subjects (101 men and 231 women) who were recruited from an ongoing multicenter project. RESULTS: Serum LBP was significantly associated with obesity [BMI, fat mass and waist circumference (r > 0.38, p < 0.0001)], HOMA (r = 0.36, p < 0.0001) and high sensitivity CRP (hsCRP) (r = 0.50, p < 0.0001). Circulating LBP was also positively associated with C-IMT (r = 0.27, p < 0.0001). Circulating LBP (β = 0.16; p = 0.001) contributed independently to C-IMT variance, after controlling for the effects of age, gender, BMI and hsCRP. Of note, circulating LBP was found to be increased in the population with carotid plaque (n = 50; 32.7 ± 12.5 vs 28.7 ± 10.7; p = 0.021). CONCLUSION: The consistent association between serum LBP and the carotid intima media thickness, a widely used atherosclerosis marker, reveals serum LBP as a putative factor related to atherosclerosis.
BACKGROUND: Recently, serum lipopolysaccharide-binding protein (LBP) has been closely associated with coronary artery disease. Here, we aimed to investigate the possible relationship between serum LBP and markers of atherosclerosis. METHODS: Serum LBP and carotid intima media thickness (C-IMT) were measured in 332 subjects (101 men and 231 women) who were recruited from an ongoing multicenter project. RESULTS: Serum LBP was significantly associated with obesity [BMI, fat mass and waist circumference (r > 0.38, p < 0.0001)], HOMA (r = 0.36, p < 0.0001) and high sensitivity CRP (hsCRP) (r = 0.50, p < 0.0001). Circulating LBP was also positively associated with C-IMT (r = 0.27, p < 0.0001). Circulating LBP (β = 0.16; p = 0.001) contributed independently to C-IMT variance, after controlling for the effects of age, gender, BMI and hsCRP. Of note, circulating LBP was found to be increased in the population with carotid plaque (n = 50; 32.7 ± 12.5 vs 28.7 ± 10.7; p = 0.021). CONCLUSION: The consistent association between serum LBP and the carotid intima media thickness, a widely used atherosclerosis marker, reveals serum LBP as a putative factor related to atherosclerosis.
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