Use of markers of dyslipidemia to identify overweight youth with insulin resistance

Autor: Fida Bacha, Janine E. Janosky, Tamara S. Hannon, SoJung Lee, Silva A. Arslanian
Rok vydání: 2006
Předmět:
Zdroj: Pediatric Diabetes. 7:260-266
ISSN: 1399-5448
1399-543X
DOI: 10.1111/j.1399-5448.2006.00199.x
Popis: Context: Markers to identify overweight youth with insulin resistance are of clinical importance. Objective: To determine if markers of dyslipidemia could identify overweight adolescents with insulin resistance. Setting, Participants, and Study Design: We retrospectively examined the association between markers of dyslipidemia and insulin resistance in 35 overweight [body mass index (BMI) of ≥95th percentile], white adolescents [mean age 13.5 ± (SD) 1.6 yr] who had participated in hyperinsulinemic–euglycemic clamp studies to evaluate insulin action. Total body fat was measured by dual-energy X-ray absorptiometry and abdominal fat with computed tomography. Using receiver-operating curves, cut-points for triglyceride (TG)/high-density lipoprotein (HDL) and TG level to identify overweight individuals in the lowest tertile for insulin sensitivity were determined. Main Outcome Measure: Difference in the values for insulin sensitivity among the groups. Results: Of the markers examined (TG, TG/HDL, adiponectin, measures of adiposity and fasting insulin), fasting insulin was the strongest correlate of insulin sensitivity (r = 0.87, p < 0.001). Youth with TG/HDL level ≥3 had lower insulin sensitivity (50% lower median values, p < 0.01) and higher visceral fat (p < 0.05) despite BMI comparable to that of youth with TG/HDL level
Databáze: OpenAIRE