Abstract:
AIM:Smoking induces vascular inflammation and increases the risk of cardiovascular events. Lectinlike oxidized low-density lipoprotein receptor-1 (LOX-1) is a scavenger receptor that is induced by oxidative stress and is associated with atherosclerotic plaque formation and destabilization. LOX-1 interacts with C-reactive protein (CRP) and plays an important role in inflammatory diseases. We therefore hypothesized that LOX-1 may be involved in the onset of smoking-induced vascular inflammation. METHODS:We measured the soluble LOX-1 (sLOX-1) levels in sera obtained from 207 current smokers. RESULTS:The serum sLOX-1 levels positively correlated with various smoking variables, such as the number of cigarettes smoked per day (r= 0.150, p<0.05), the expired air carbon monoxide (CO) concentrations (r= 0.198, p<0.005) and the Fagerstrom test for nicotine dependence scores (r= 0.190, p<0.01). The serum levels of sLOX-1 also correlated with those of a representative inflammatory marker, the serum high-sensitivity CRP level (hsCRP; r= 0.232, p<0.005). A multivariate regression analysis revealed the independent determinants of the serum sLOX-1 level to be the expired air CO concentration (β= 0.182, p<0.05) and the hsCRP level (β= 0.213, p<0.01). CONCLUSIONS:The serum sLOX-1 level was found to increase in close association with both the smoking-related variables and the inflammatory marker hsCRP. These findings suggest that LOX-1 may therefore play an important role in the onset of smoking-induced inflammation and atherosclerosis in humans.
journal_name
J Atheroscler Thrombjournal_title
Journal of atherosclerosis and thrombosisauthors
Takanabe-Mori R,Ono K,Wada H,Takaya T,Ura S,Yamakage H,Satoh-Asahara N,Shimatsu A,Takahashi Y,Fujita M,Fujita Y,Sawamura T,Hasegawa Kdoi
10.5551/jat.16436subject
Has Abstractpub_date
2013-01-01 00:00:00pages
585-90issue
6eissn
1340-3478issn
1880-3873pii
DN/JST.JSTAGE/jat/16436journal_volume
20pub_type
杂志文章abstract:AIM:The Vietnamese develop type 2 diabetes (T2D) and metabolic syndrome (MS) at a lower BMI than other ethnicities. Thus, biomarkers that identify subjects at an increased risk of T2D independently of obesity are being sought. Recent studies show that circulating NO metabolites (NOx) are increased in T2D. We investigat...
journal_title:Journal of atherosclerosis and thrombosis
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pub_type: 杂志文章,多中心研究,随机对照试验
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