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Gállego-Suárez C, Bulan A, Hirschfeld E, Wachowiak P, Abrishami S, Griffin C, Sturza J, Tzau A, Hayes T, Woolford SJ, Lumeng CN, Lee JM, Singer K. Enhanced Myeloid Leukocytes in Obese Children and Adolescents at Risk for Metabolic Impairment. Front Endocrinol (Lausanne) 2020; 11:327. [PMID: 32528415 PMCID: PMC7266967 DOI: 10.3389/fendo.2020.00327] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 04/27/2020] [Indexed: 12/26/2022] Open
Abstract
Objective: We aimed to examine if myeloid leukocyte profiles are associated with metabolic impairment in children and adolescents with obesity, and if sex, age, or race influence this relationship. Methods: 282 children ages 8-17 were evaluated. Predictor measures were absolute neutrophil counts (ANC), absolute monocyte count, monocyte subtypes and C reactive protein (CRP). Outcome variables were waist circumference, fasting glucose and insulin, HOMA-IR, HbA1c (%) and lipid profiles. Pearson correlation coefficients were used to determine associations between predictor and outcome variables. Wilcoxon two-sample tests were used to evaluate differences by sex. Results: CRP (p < 0.0001), ANC (p < 0.0018), and classical monocytes (p = 0.05) were significantly higher in children with obesity. CRP, ANC and classical monocytes showed positive correlations with waist circumference, insulin, HOMA-IR and triglycerides. CRP was positively associated with ANC overall (p = 0.05). ANC demonstrated positive correlation with monocytes (p < 0.001). The associations between predictor and outcome variables were influenced by sex, race, and age. Conclusions: CRP and myeloid leukocyte populations, specifically classical monocytes and neutrophils associate with both body composition and metabolic parameters in children with obesity suggesting that these cells may play a critical role in metabolic impairment. Race, gender and age interactions between monocytes and metabolic parameters were significant.
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Affiliation(s)
- Cecilia Gállego-Suárez
- Division of Pediatric Endocrinology, Department of Pediatrics, University of Michigan, Ann Arbor, MI, United States
| | - Ayse Bulan
- Division of Pediatric Endocrinology, Department of Pediatrics, University of Michigan, Ann Arbor, MI, United States
| | - Emily Hirschfeld
- Department of Pediatrics, Child Health Evaluation and Research Center (CHEAR), University of Michigan, Ann Arbor, MI, United States
| | - Phillip Wachowiak
- Division of Pediatric Endocrinology, Department of Pediatrics, University of Michigan, Ann Arbor, MI, United States
| | - Simin Abrishami
- Division of Pediatric Endocrinology, Department of Pediatrics, University of Michigan, Ann Arbor, MI, United States
| | - Cameron Griffin
- Division of Pediatric Endocrinology, Department of Pediatrics, University of Michigan, Ann Arbor, MI, United States
| | - Julie Sturza
- Woodson Biostatistics Consultation Program, Department of Pediatrics, University of Michigan, Ann Arbor, MI, United States
| | - Abigail Tzau
- Division of Pediatric Endocrinology, Department of Pediatrics, University of Michigan, Ann Arbor, MI, United States
| | - Taryn Hayes
- Division of Pediatric Endocrinology, Department of Pediatrics, University of Michigan, Ann Arbor, MI, United States
| | - Susan J. Woolford
- Department of Pediatrics, Child Health Evaluation and Research Center (CHEAR), University of Michigan, Ann Arbor, MI, United States
| | - Carey N. Lumeng
- Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI, United States
- Graduate Program in Cellular and Molecular Biology, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Joyce M. Lee
- Division of Pediatric Endocrinology, Department of Pediatrics, University of Michigan, Ann Arbor, MI, United States
- Department of Pediatrics, Child Health Evaluation and Research Center (CHEAR), University of Michigan, Ann Arbor, MI, United States
| | - Kanakadurga Singer
- Division of Pediatric Endocrinology, Department of Pediatrics, University of Michigan, Ann Arbor, MI, United States
- Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI, United States
- Graduate Program in Cellular and Molecular Biology, University of Michigan Medical School, Ann Arbor, MI, United States
- *Correspondence: Kanakadurga Singer
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