Decreased GlycA after lifestyle intervention among obese, prediabetic adolescent Latinos

Micah L. Olson, Ana Rentería-Mexía, Margery A. Connelly, Sonia Vega-Lopez, Erica G. Soltero, Yolanda P. Konopken, Allison N. Williams, Felipe Castro, Colleen S. Keller, Hongwei P. Yang, Michael Todd, Gabriel Shaibi

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Background: Obese youth with prediabetes are at increased risk for premature morbidity and mortality through multiple mechanisms, including increased systemic inflammation. GlycA is a novel measure of systemic inflammation that predicts type II diabetes, cardiovascular events, and all-cause mortality in adults. Objective: The purpose of the present study was to examine changes in GlycA after lifestyle intervention among obese, prediabetic Latino youth. Methods: Obese, prediabetic Latino youth (n = 27; 15.5 ± 1.1 years, 13 males/14 females) completed a 12-week lifestyle intervention that included weekly nutrition education and 3 d/wk of moderate to vigorous physical activity. Prediabetes was characterized by an expanded definition of impaired glucose tolerance, using 2-hour glucose ≥120 mg/dL after an oral glucose tolerance test. GlycA was assessed at baseline and 12 weeks using nuclear magnetic resonance spectroscopy. Results: After the lifestyle intervention, GlycA was significantly reduced (445.3 ± 51.3 μmol/L to 419.0 ± 50.0 μmol/L, P =.01) (mean ± standard deviation). Additional improvements were observed in multiple cardiovascular risk factors, including body mass index (BMI; 34.8 ± 5.0 kg/m 2 to 34.0 ± 5.1 kg/m 2 , P <.001), total cholesterol (154.1 ± 30.3 mg/dL to 143.3 ± 29.1 mg/dL, P =.003), and 2-hour glucose (141.0 ± 13.2 mg/dL to 115.9 ± 31.4 mg/dL, P <.001). Decreases in GlycA were associated with decreases in 2-hour glucose (r = 0.49, P =.008) and BMI (r = 0.41, P =.03). Conclusion: These data are consistent with the hypothesis that lifestyle intervention might improve GlycA levels in obese, prediabetic adolescent Latinos, but randomized trial evidence is needed. Healthy lifestyle modifications among high-risk youth may decrease future risk of cardiometabolic disease through reducing systemic inflammation, in addition to improving traditional cardiovascular risk factors.

Original languageEnglish (US)
Pages (from-to)186-193
Number of pages8
JournalJournal of Clinical Lipidology
Issue number1
StatePublished - Jan 1 2019


  • Cardiovascular disease
  • Impaired glucose tolerance
  • Inflammation
  • Latino
  • Pediatric obesity
  • Type II diabetes

ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Nutrition and Dietetics
  • Cardiology and Cardiovascular Medicine


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