Triglycerides and Residual Atherosclerosis Risk
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Even when low-density lipoprotein-cholesterol (LDL-C) levels are lower than guideline thresholds, a residual risk of atherosclerosis remains. It is unknown whether triglyceride (TG) levels are associated with subclinical atherosclerosis and vascular inflammation regardless of LDL-C.

This study sought to assess the association between serum TG levels and early atherosclerosis and vascular inflammation in apparently healthy individuals.

An observational, longitudinal, and prospective cohort study, including 3,754 middle-aged individuals with low to moderate cardiovascular risk from the PESA (Progression of Early Subclinical Atherosclerosis) study was conducted. Peripheral atherosclerotic plaques were assessed by 2-dimensional vascular ultrasound, and coronary artery calcification (CAC) was assessed by noncontrast computed tomography, whereas vascular inflammation was assessed by fluorine-18 fluorodeoxyglucose uptake on positron emission tomography.

Results:
-- Atherosclerotic plaques and CAC were observed in 58.0% and 16.8% of participants, respectively, whereas vascular inflammation was evident in 46.7% of evaluated participants.

-- After multivariate adjustment, TG levels ?150 mg/dl showed an association with subclinical noncoronary atherosclerosis.

-- This association was significant for groups with high LDL-C and normal LDL-C.

-- No association was found between TG level and CAC score.

-- TG levels more than 150 mg/dl were significantly associated with the presence of arterial inflammation.

Conclusively, in individuals with low to moderate cardiovascular risk, hypertriglyceridemia was associated with subclinical atherosclerosis and vascular inflammation, even in participants with normal LDL-C levels.

Source: https://www.jacc.org/doi/10.1016/j.jacc.2021.04.059?_ga=2.238407172.528053014.1623813392-777820309.1584504539
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