Abstract
Background: Higher fasting glucose and hemoglobin A1C levels are seen more often in African American (AA) and Hispanic (H) youth, even after adjusting for body mass index (BMI), pointing to other factors that might be promoting abnormal glucose tolerance, such as inflammatory mediators. Our study compared markers of inflammation and oxidative stress in adolescents of different ethnicities. Methods: This was a cross-sectional cohort study of healthy Caucasian (C), H, and AA adolescents. Fasting urine for F2-isoprostanes and plasma for adiponectin, soluble vascular cell adhesion molecule (s-VCAM 1), interleukins (ILs), and tumor necrosis factor-α were collected and analyzed. Insulin resistance was measured by homeostasis model assessment of insulin resistance (HOMA-IR). Multivariable regression analyses were used to assess the effect of the biomarkers on HOMA-IR. Results: Seventy adolescents were enrolled (26 C, 20 A, and 24 H); 32 were male (46%) and 27 (39%) were obese. Exploratory analysis showed that for every 1 U increase in BMI z-score, IL-8 rose by 0.53 (0.05, 1.00), P = 0.03. On regression analyses, for every unit increase in BMI z-score, HOMA-IR increased by 0.67 U (P = 0.001); for every unit increase in IL-8, HOMA-IR decreased by 0.21 U (P = 0.04). None of the other biomarkers was significantly associated with HOMA-IR. Conclusions: Higher insulin resistance was associated with increasing BMI z-scores and lower IL-8. This pilot study demonstrates the need to further evaluate inflammatory markers as an independent risk factor for the development of diabetes and to explore if there is a cause and effect relationship between IL-8 and insulin resistance. This could prove valuable for early identification of insulin resistance and as targets for intervention.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 182-186 |
| Number of pages | 5 |
| Journal | Metabolic Syndrome and Related Disorders |
| Volume | 14 |
| Issue number | 3 |
| DOIs | |
| State | Published - Apr 1 2016 |
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ASJC Scopus subject areas
- Endocrinology, Diabetes and Metabolism
- Internal Medicine
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Preliminary Report of Inflammatory Markers, Oxidative Stress, and Insulin Resistance in Adolescents of Different Ethnicities. / Butani, Lavjay; Dharmar, Madan; Devaraj, Sridevi; Jialal, Ishwarlal.
In: Metabolic Syndrome and Related Disorders, Vol. 14, No. 3, 01.04.2016, p. 182-186.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Preliminary Report of Inflammatory Markers, Oxidative Stress, and Insulin Resistance in Adolescents of Different Ethnicities
AU - Butani, Lavjay
AU - Dharmar, Madan
AU - Devaraj, Sridevi
AU - Jialal, Ishwarlal
PY - 2016/4/1
Y1 - 2016/4/1
N2 - Background: Higher fasting glucose and hemoglobin A1C levels are seen more often in African American (AA) and Hispanic (H) youth, even after adjusting for body mass index (BMI), pointing to other factors that might be promoting abnormal glucose tolerance, such as inflammatory mediators. Our study compared markers of inflammation and oxidative stress in adolescents of different ethnicities. Methods: This was a cross-sectional cohort study of healthy Caucasian (C), H, and AA adolescents. Fasting urine for F2-isoprostanes and plasma for adiponectin, soluble vascular cell adhesion molecule (s-VCAM 1), interleukins (ILs), and tumor necrosis factor-α were collected and analyzed. Insulin resistance was measured by homeostasis model assessment of insulin resistance (HOMA-IR). Multivariable regression analyses were used to assess the effect of the biomarkers on HOMA-IR. Results: Seventy adolescents were enrolled (26 C, 20 A, and 24 H); 32 were male (46%) and 27 (39%) were obese. Exploratory analysis showed that for every 1 U increase in BMI z-score, IL-8 rose by 0.53 (0.05, 1.00), P = 0.03. On regression analyses, for every unit increase in BMI z-score, HOMA-IR increased by 0.67 U (P = 0.001); for every unit increase in IL-8, HOMA-IR decreased by 0.21 U (P = 0.04). None of the other biomarkers was significantly associated with HOMA-IR. Conclusions: Higher insulin resistance was associated with increasing BMI z-scores and lower IL-8. This pilot study demonstrates the need to further evaluate inflammatory markers as an independent risk factor for the development of diabetes and to explore if there is a cause and effect relationship between IL-8 and insulin resistance. This could prove valuable for early identification of insulin resistance and as targets for intervention.
AB - Background: Higher fasting glucose and hemoglobin A1C levels are seen more often in African American (AA) and Hispanic (H) youth, even after adjusting for body mass index (BMI), pointing to other factors that might be promoting abnormal glucose tolerance, such as inflammatory mediators. Our study compared markers of inflammation and oxidative stress in adolescents of different ethnicities. Methods: This was a cross-sectional cohort study of healthy Caucasian (C), H, and AA adolescents. Fasting urine for F2-isoprostanes and plasma for adiponectin, soluble vascular cell adhesion molecule (s-VCAM 1), interleukins (ILs), and tumor necrosis factor-α were collected and analyzed. Insulin resistance was measured by homeostasis model assessment of insulin resistance (HOMA-IR). Multivariable regression analyses were used to assess the effect of the biomarkers on HOMA-IR. Results: Seventy adolescents were enrolled (26 C, 20 A, and 24 H); 32 were male (46%) and 27 (39%) were obese. Exploratory analysis showed that for every 1 U increase in BMI z-score, IL-8 rose by 0.53 (0.05, 1.00), P = 0.03. On regression analyses, for every unit increase in BMI z-score, HOMA-IR increased by 0.67 U (P = 0.001); for every unit increase in IL-8, HOMA-IR decreased by 0.21 U (P = 0.04). None of the other biomarkers was significantly associated with HOMA-IR. Conclusions: Higher insulin resistance was associated with increasing BMI z-scores and lower IL-8. This pilot study demonstrates the need to further evaluate inflammatory markers as an independent risk factor for the development of diabetes and to explore if there is a cause and effect relationship between IL-8 and insulin resistance. This could prove valuable for early identification of insulin resistance and as targets for intervention.
UR - http://www.scopus.com/inward/record.url?scp=84961857271&partnerID=8YFLogxK
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U2 - 10.1089/met.2015.0161
DO - 10.1089/met.2015.0161
M3 - Article
C2 - 26824677
AN - SCOPUS:84961857271
VL - 14
SP - 182
EP - 186
JO - Metabolic Syndrome and Related Disorders
JF - Metabolic Syndrome and Related Disorders
SN - 1540-4196
IS - 3
ER -