Oxidized and electronegative low-density lipoprotein as potential biomarkers of cardiovascular risk in obese adolescents
Clinics
;
73: e189, 2018. tab, graf
Article
in English
| LILACS
| ID: biblio-974943
ABSTRACT
OBJECTIVES:
To evaluate biomarkers associated with early cardiometabolic risk in obese adolescents.METHODS:
This cross-sectional study included 137 adolescents of both sexes aged 10 to 19 years divided into a normal weight group (NW) (n=69) and an obese group (OB) (n=68).RESULTS:
As expected, obesity showed positive associations with homeostatic model assessment for insulin resistance (HOMA-IR), triacylglycerol, insulin, plasma levels of non-esterified fatty acids, and cholesterol ester transfer protein activity and negative associations with plasma antioxidant levels. Plasma oxidized low-density lipoprotein (oxLDL) and electronegative low-density lipoprotein [LDL(-)] levels were significantly higher in the OB group. Higher tertiles of oxLDL were associated with increased values of body mass index; waist circumference; fatty mass percentage (%FM); and the atherogenic lipids non-high-density-lipoprotein cholesterol (non-HDL-C), low-density lipoprotein cholesterol (LDL-C), apolipoprotein B and triacylglycerol. Higher tertiles of LDL(-) were robustly associated with body mass index and waist circumference. Logistic regression models (odds ratios) confirmed that increased values of lipids and apolipoprotein B were associated with increased risk of oxLDL. For LDL(-), these associations were not significant, suggesting that another mechanism is involved in generating this particle in obese adolescents.CONCLUSIONS:
Obese adolescents showed increased plasma LDL(-) and oxLDL, and obese girls had more LDL(-) than obese boys. Therefore, oxLDL is strongly and independently associated with classical cardiovascular risk factors, while increased levels of LDL(-) were influenced by body mass index, waist circumference and demographic parameters in obese adolescents.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Cardiovascular Diseases
/
Lipoproteins, LDL
/
Obesity
Type of study:
Etiology study
/
Observational study
/
Prevalence study
/
Prognostic study
/
Risk factors
Limits:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Language:
English
Journal:
Clinics
Journal subject:
Medicine
Year:
2018
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade de Sao Paulo/BR
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