Abstract
Background and aimsAtherosclerosis is a prominent vascular lesion, and potentially causing ischemic alterations in the brain and heart. Recent studies have reported that physiological and pathological alterations in atherosclerosis and extracellular vesicles (EV) are related. This study aimed to investigate the association between the extent of atherosclerotic lesions and the number of serum EVs in a mouse model of atherosclerosis (wild-type). MethodsEighteen 3-week-old C57BL/6 N male mice(wild-type) were purchased. Twelve mice were fed a 45% high-fat diet (HFD) for six months. Six mice were provided standard laboratory chow for six months. The entire aorta, from the aortic sinus to the division of the iliac artery, was dissected out from each mouse. Furthermore, the degree of atherosclerosis was microscopically determined. Serum EVs were quantified by size via nanoparticle tracking analysis. ResultsThe number of EVs in the high-atherosclerotic score group (1.43 × 109) was higher than that in the low- atherosclerotic score group (0.7 × 109) in the range of 211.5–222.5 nm (p = 0.033). ConclusionsEnumeration of EVs is a potential method of detecting atherosclerosis.
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