Modest decrease in severity of obesity in adolescence associates with low arterial stiffness
SourceAtherosclerosis, 335, (2021), pp. 23-30
Article / Letter to editor
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SubjectRadboudumc 16: Vascular damage RIMLS: Radboud Institute for Molecular Life Sciences
BACKGROUND AND AIMS: Childhood obesity is associated with cardiovascular risk factors (CVRF), subclinical cardiovascular phenotypes (carotid intima-media thickness, cIMT; pulse-wave velocity, PWV; and carotid elasticity), and adult cardiovascular disease (CVD) mortality. In youth with obesity (body mass index, BMI ≥95th centile), we investigated associations between changes in adiposity and CVRF in early adolescence and subclinical cardiovascular phenotypes in late adolescence. METHODS: Participants had adiposity measures (the severity of obesity in percentage >95th BMI-centile (%>95th BMI-centile)), waist circumference (WC), percentage total body fat (%BF) and CVRF (systolic blood pressure, SBP; glycoprotein acetyls, GlycA; and low-density lipoprotein cholesterol) assessed in early (mean age 10.2 ± 3.5y) and late (15.7 ± 3.7y) adolescence. Subclinical cardiovascular phenotypes were assessed in late adolescence. Multivariable regression analysis was performed. RESULTS: Decreasing the %>95th BMI-centile was associated with carotid elasticity (0.945%/10 mmHg, p = 0.002) in females, and with PWV in males (-0.75 m/s, p < 0.001). Changes in all adiposity measures (per 1-unit increase) were associated with carotid elasticity (-0.020 to -0.063%/10 mmHg, p < 0.005), and PWV (0.011-0.045 m/s, p < 0.005). Changes in GlycA (per 50μmol-increase) were associated with elasticity (-0.162%/10 mmHg, p = 0.042), and changes in SBP (per 10 mmHg-increase) were associated with PWV (0.260 m/s, p < 0.001). Adjusted for change in BMI, the coefficient for GlycA was reduced by 46% and for SBP by 12%. Only male sex was associated with cIMT (+34 μm, p = 0.006). CONCLUSIONS: In youth with obesity, decreasing or maintaining the severity of obesity, and decreasing the levels of SBP and GlycA from early to late adolescence was associated with low arterial stiffness.
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