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Updated: Jul 8, 2025

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
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.
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.
Objective:
The aim of this study was to identify the differential metabolic characteristics of children with overweight and obesity and understand their potential mechanism in different age stratifications.
Methods:
Four hundred seventy-three children were recruited and divided into two age stratifications: >4 years (older children) and ≤4 years (younger children), and overweight and obesity were defined according to their BMI percentile. A one dimensional proton nuclear magnetic resonance (1 H-NMR)-based metabolomics strategy combined with pattern recognition methods was used to identify the metabolic characteristics of childhood overweight and obesity.
Results:
Four and sixteen potential biomarkers related to overweight and two and twenty potential biomarkers related to obesity were identified from younger and older children, respectively. Fluctuations in phenylalanine, tyrosine, glutamine, leucine, histidine, and ascorbate co-occurred in children with obesity at two age stratifications. The disturbances in biosynthesis and metabolism of amino acids, lipid metabolism, and galactose metabolism disturbance were mainly involved in children with overweight and obesity.
Conclusions:
The metabolic disturbances show a significant progression from overweight to obesity in children, and different metabolic characteristics were demonstrated in age stratifications. The changes in the levels of phenylalanine, tyrosine, glutamine, leucine, histidine, and ascorbate were tracked with the persistence of childhood obesity. These findings will promote the mechanistic understanding of childhood overweight and obesity.
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