Abstract:
:We tested whether low high-density lipoprotein cholesterol (HDL-C) and/or high triglycerides are associated to abnormal HDL subclasses distribution and composition, and their relationships with fasting insulin and C-reactive protein (CRP). Four groups of adolescents were studied: group 1 (HDL-C< or =35 mg/dl+TG> or =150 mg/dl; n=16); group 2 (isolated HDL-C< or =35 mg/dl; n=31); group 3 (isolated TG> or =150 mg/dl; n=20); and group 4 (CT<200 mg/dl, HDL-C>35 mg/dl, LDL-C<130 mg/dl, and TG<150 mg/dl; n=39). Tanner score-adjusted proportions of large subspecies (HDL(2b), HDL(2a)) were lower, and small (HDL(3b), HDL(3c)) were higher in groups 1, 2 and 3 than in group 4. As a result, HDL particle size in the three dyslipidemic groups was smaller than in group 4 (p<0.001). HDL CE, FC, PL, and apo AI percent contents were lower, whereas HDL TG percent content was higher in groups 1, 2 and 3 compared to group 4. CRP median values were also significantly higher in the three groups with dyslipidemia than in normolipidemic subjects (group 4). Fasting Insulin concentration and HOMA-IR were significantly higher in group 1 than in the other three groups. In stepwise multivariate analysis HDL subclass distribution and composition were independently associated only with HDL-C and waist circumference. As reported in adults, adolescents with low HDL-C and/or high TG have abnormalities in HDL subclasses distribution and lipid composition, which may render their HDL dysfunctional. In addition, these subjects have high CRP and insulin levels suggesting the presence of chronic low-grade inflammation.
journal_name
Atherosclerosisjournal_title
Atherosclerosisauthors
Medina-Urrutia A,Juarez-Rojas JG,Martínez-Alvarado R,Jorge-Galarza E,Posadas-Sánchez R,Cardoso-Saldaña G,Caracas-Portilla N,Mendoza-Perez E,Posadas-Romero Cdoi
10.1016/j.atherosclerosis.2008.02.029subject
Has Abstractpub_date
2008-12-01 00:00:00pages
392-7issue
2eissn
0021-9150issn
1879-1484pii
S0021-9150(08)00133-0journal_volume
201pub_type
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