Key result
More metabolic syndrome criteria linked to higher postprandial triglyceride exposure in CAD patients.
Cross-Sectional (n=1,002)
p-value: p=<0.001
OBJECTIVE: To determine whether metabolic syndrome traits influence the postprandial lipemia response of coronary patients, and whether this influence depends on the number of MetS criteria. MATERIALS AND METHODS: 1002 coronary artery disease patients from the CORDIOPREV study were submitted to an oral fat load test meal with 0.7 g fat/kg body weight (12% saturated fatty acids, 10% polyunsaturated fatty acids, 43% monounsaturated fatty acids), 10% protein and 25% carbohydrates. Serial blood test analyzing lipid fractions were drawn at 0, 1, 2, 3 and 4 hours during the postprandial state. Total and incremental area under the curves of the different postprandial parameters were calculated following the trapezoid rule to assess the magnitude of change during the postprandial state. RESULTS: Postprandial lipemia response was directly related to the presence of metabolic syndrome. We found a positive association between the number of metabolic syndrome criteria and the response of postprandial plasma triglycerides (p<0.001), area under the curve of triglycerides (p<0.001) and incremental area under the curve of triglycerides (p<0.001). However, the influence of them on postprandial triglycerides remained statistically significant only in those patients without basal hypertriglyceridemia. Interestingly, in stepwise multiple linear regression analysis with the AUC of triglycerides as the dependent variable, only fasting triglycerides, fasting glucose and waist circumference appeared as significant independent (P<0.05) contributors. The multiple lineal regression (R) was 0.77, and fasting triglycerides showed the greatest effect on AUC of triglycerides with a standardized coefficient of 0.75. CONCLUSIONS: Fasting triglycerides are the major contributors to the postprandial triglycerides levels. MetS influences the postprandial response of lipids in patients with coronary heart disease, particularly in non-hypertriglyceridemic patients.
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Alcalá‐Díaz et al. (2014) conducted a cross-sectional in Coronary artery disease (n=1,002). Metabolic syndrome traits vs. Fewer metabolic syndrome criteria / absence of hypertriglyceridemia was evaluated on Area under the curve of postprandial plasma triglycerides (p=<0.001). The number of metabolic syndrome criteria was positively associated with the area under the curve of postprandial triglycerides in patients with coronary artery disease (P<0.001).
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