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Inverse correlation of serum inflammatory markers with metabolic parameters in healthy, Black and White prepubertal

J Zabaleta1, C Velasco-Gonzalez2, J Estrada3

  • 11] Department of Pediatrics and Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA [2] Behavioral & Community Health Sciences Program, School of Public Health, Louisiana State University Health Sciences Center, New Orleans, LA, USA.

International Journal of Obesity (2005)
|November 27, 2013
PubMed

Insights

In healthy children aged 7-9, pro-inflammatory cytokines like TNF-α and IL-8 showed inverse correlations with obesity markers. These relationships differ from adults, suggesting unique pediatric metabolic regulation.

Area of Science:

  • Pediatric Endocrinology
  • Immunology
  • Metabolic Health

Background:

  • Obesity is linked to chronic inflammation and metabolic dysfunction in adults.
  • Understanding these associations in prepubertal children is crucial for early disease risk assessment.
  • Race and age are important factors in pediatric metabolic health.

Purpose of the Study:

  • To investigate the relationship between pro-inflammatory cytokines and obesity-related metabolic biomarkers in prepubertal children.
  • To compare these associations between Black and White children.
  • To examine differences compared to adult patterns.

Main Methods:

  • Assessed body mass index (BMI), insulin resistance, adipose tissue (visceral, subcutaneous), intrahepatic lipid (IHL), and intramyocellular lipid (IMCL) in 40 obese and non-obese children (7-9 years).
  • Measured serum levels of key pro-inflammatory cytokines: IL-1, IL-6, IL-8, TNF-α, and MCP-1.
  • Utilized magnetic resonance imaging (MRI), dual-energy X-ray absorptiometry, and proton magnetic resonance spectroscopy for body composition and fat distribution.

Main Results:

  • Found significant inverse correlations between BMI z-score, subcutaneous adipose tissue (SAT), total body fat (BF), and IHL with tumor necrosis factor alpha (TNF-α).
  • Interleukin-8 (IL-8) levels were inversely correlated with intramyocellular lipid (IMCL), remaining significant after adjusting for race.
  • Intramyocellular lipid (IMCL) showed an inverse association with TNF-α, particularly after race adjustment.

Conclusions:

  • The study reveals reversed relationships between pro-inflammatory markers and metabolic parameters in healthy prepubertal children compared to adults.
  • These findings highlight distinct inflammatory and metabolic profiles in early childhood obesity.
  • Further longitudinal research is needed to understand the long-term implications for chronic disease risk.
Abstract

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