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Updated: Jun 23, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
[TNF-alpha and carbohydrate and lipid parameters in overweight and obese children]
1Samodzielna Pracownia Propedeutyki Chorób Dzieci Pomorskiej Akademii Medycznej w Szczecinie ul. Unii Lubelskiej 1, 71-252 Szczecin.
Insights
Tumor necrosis factor alpha (TNF-alpha) levels were comparable in obese and lean children, but correlated with abdominal obesity in girls. Increased TNF-alpha was linked to lipid disturbances and atherogenesis risk in prepubertal children.
Area of Science:
- Pediatric Endocrinology
- Metabolic Syndrome Research
- Inflammation and Obesity Studies
Context:
- Obesity in children is associated with metabolic disturbances, including insulin resistance and dyslipidemia.
- Tumor necrosis factor alpha (TNF-alpha) is implicated in the pathogenesis of obesity and related complications.
- Understanding the role of TNF-alpha in pediatric obesity is crucial for identifying at-risk individuals and preventing long-term health issues like atheromatosis.
Purpose:
- To determine fasting serum concentrations of TNF-alpha in overweight and obese children.
- To analyze the relationships between TNF-alpha and insulin resistance, lipid disturbances, and markers of atheromatosis risk.
- To assess correlations between TNF-alpha and anthropometric measures (BMI, WHR), leptin, and plasminogen activator inhibitor type 1 (PAI-1).
Summary:
- Serum TNF-alpha concentrations were comparable between obese and lean children, but increased with waist-to-hip ratio (WHR) in obese girls, indicating a link to abdominal obesity.
- TNF-alpha levels did not correlate with fat-free mass or BMI but showed relationships with decreased HDL cholesterol and increased triglycerides (TG) in overweight/obese children, particularly during pubertal stages II-III.
- A positive correlation between TNF-alpha and PAI-1 was observed in boys with elevated TG, suggesting an increased risk of atherogenesis.
Impact:
- Highlights the importance of monitoring lipid profiles and metabolic syndrome markers in prepubertal children with excessive body weight.
- Suggests targeted interventions for boys with elevated TG and increased PAI-1 due to heightened atherogenesis risk.
- Indicates that while TNF-alpha may not be the sole driver of carbohydrate disturbances in obese children, its role in lipid metabolism and atheromatosis risk warrants attention.
Introduction:
Tumor necrosis factor alpha (TNF-alpha) is suspected to play a role in obesity and concomitant metabolic disturbances. The aim of the study was to determine fasting serum concentrations of TNF-alpha in overweight and obese children and to analyse the relationships between TNF-alpha and insulin resistance and lipid disturbances. The additional aim was to assess correlations between TNF-alpha and total fat mass, body mass index (BMI), WHR, leptin and plasminogen activator inhibitor type 1 (PAI-1), as the factor of increased risk of atheromatosis.
Material And Methods:
The study was performed in a group of 160 children aged 6-18.5 years: 127 overweight or obese and 33 healthy lean children (control group). The anthropometric measurements, BMI, WHR, fat-free mass, Tanner pubertal stage and blood pressure were determined. The fasting serum concentrations of TNF-alpha, glucose, insulin, lipids and fibrinogen were analysed in studied children. In overweight and obese subjects oral glucose tolerance test (OGTT) was done, serum leptin and plasma PAI-1 concentrations were determined. Atherogenic and insulin resistance indexes were counted. Statistic analysis was done.
Results And Conclusions:
The serum TNF-alpha concentration in overweight and obese children and lean controls were comparable. This fact doesn't deny the role of TNF-alpha in pathogenesis of obesity. TNF-alpha concentration grows in serum of girls according to degree of abdominal obesity, determined with increase of WHR. Fat-free mass and BMI don't influence TNF-alpha level. Carbohydrate disturbances in obese children may not depend only on TNF-alpha. There are relationships between TNF-alpha and decreased HDL cholesterol and increased triglycerides (TG) levels in serum of overweight and obese children, mainly in II-III pubertal stage. Special care should be provided for children with excessive body weight at the beginning of puberty because of increased intensity of metabolic syndrome in this period and greater risk of early atheromatosis. Special care should be also provided for boys with increased TG serum levels, because of growing atherogenesis risk, determined with higher plasma concentration of PAI-1 in them and positive correlation between TNF-alpha and PAI-1. Regulation ofleptin production and secretion may also be under the control of other factors than TNF-alpha.
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