Childhood overweight and obesity: age stratification contributes to the differences in metabolic characteristics

Jinxia Wu1, Zhenchang Li1, Hongwei Zhu2

  • 1Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen, China.

PubMed

Insights

This study identified distinct metabolic profiles in overweight and obese children, revealing age-related differences and key biomarkers like phenylalanine and tyrosine. These findings advance understanding of childhood obesity mechanisms.

Area of Science:

  • Pediatric Endocrinology
  • Metabolomics
  • Biochemistry

Background:

  • Childhood overweight and obesity are significant public health concerns.
  • Understanding the underlying metabolic alterations is crucial for effective interventions.

Purpose of the Study:

  • To identify differential metabolic characteristics in children with overweight and obesity.
  • To explore potential mechanisms across different age groups (>4 years and ≤4 years).

Main Methods:

  • Utilized a 1D proton nuclear magnetic resonance (1H-NMR) based metabolomics approach.
  • Employed pattern recognition methods for data analysis.
  • Recruited 473 children stratified by age and BMI percentile.

Main Results:

  • Identified numerous potential biomarkers for overweight and obesity, varying by age group.
  • Observed co-occurring fluctuations in phenylalanine, tyrosine, glutamine, leucine, histidine, and ascorbate in obese children.
  • Highlighted disturbances in amino acid biosynthesis, lipid metabolism, and galactose metabolism.

Conclusions:

  • Metabolic disturbances progress significantly from overweight to obesity in children.
  • Distinct metabolic profiles were observed between younger and older children.
  • Specific metabolite changes, including phenylalanine and tyrosine, are linked to persistent childhood obesity.
Abstract

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