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Investigating the Role of LRG1 in Hepatosteatosis and Insulin Resistance in Obese Children
Berna Singin1, Zeynep Donbaloğlu1, Ebru Barsal Çetiner1
1Akdeniz University Hospital, Department of Pediatric Endocrinology, Antalya, Türkiye
Insights
Leucine-rich alpha-2-glycoprotein 1 (LRG1) is not a biomarker for hepatosteatosis in obese children but shows negative associations with insulin resistance (IR) and dyslipidemia. Further research is needed to understand LRG1's role in metabolic dysfunction.
Area of Science:
- Pediatrics
- Metabolic Disorders
- Biomarker Research
Background:
- Obesity in children is linked to metabolic complications like hepatosteatosis and insulin resistance (IR).
- Leucine-rich alpha-2-glycoprotein 1 (LRG1) is a potential biomarker for metabolic dysfunction, but its role in pediatric obesity requires investigation.
Purpose of the Study:
- To investigate the relationship between LRG1, hepatosteatosis, and IR in obese children.
- To evaluate LRG1's potential as a biomarker for these metabolic conditions in pediatric obesity.
Main Methods:
- A cohort of 172 children (100 obese, 72 non-obese) was studied.
- Anthropometric, biochemical, and inflammatory markers (LRG1, adiponectin, TNF-α) were assessed.
- Statistical analyses explored associations between LRG1 and metabolic parameters.
Main Results:
- Obese children exhibited higher BMI, body fat, blood pressure, and adverse lipid profiles.
- LRG1 levels were not significantly different in obesity or hepatosteatosis but were lower in children with IR.
- LRG1 showed negative correlations with markers of IR and dyslipidemia (e.g., HOMA-IR, triglycerides, LDL-C) and positive correlation with HDL-C.
Conclusions:
- LRG1 may not be a direct biomarker for hepatosteatosis in obese children.
- LRG1 is negatively associated with insulin resistance and dyslipidemia in this population.
- The study highlights a complex role for LRG1 in obesity-related metabolic dysfunction, warranting further investigation.
Objective:
This study aimed to investigate the relationship between leucine-rich alpha-2-glycoprotein 1 (LRG1), hepatosteatosis, and insulin resistance (IR) in obese children, and to evaluate the potential role of LRG1 as a biomarker in these metabolic conditions.
Methods:
A cohort of obese and non-obese children were enrolled. Obese subjects were further grouped by hepatosteatosis and IR status. Anthropometric measurements, biochemical parameters, and inflammatory markers including LRG1, adiponectin, and tumor necrosis factor-α (TNF-α) were evaluated. Associations between these markers and metabolic parameters were analyzed.
Results:
The cohort consisted of 172 children, of whom 100 (58.1%) were obese and 72 were non-obese. Obese children had significantly higher body mass index (BMI), BMI standard deviation scores, waist and upper arm circumferences, triceps skinfold thickness, total and percentage body of fat (PBF), and elevated systolic blood pressure (SBP) and diastolic blood pressure (DBP) (p<0.001). Laboratory findings revealed elevated glucose, insulin, homeostatic model assessment of IR (HOMA-IR), alanine aminotransferase, triglycerides (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), and lower high-density lipoprotein cholesterol (HDL-C) in the obese group (p<0.05). LRG1 levels did not differ by obesity or hepatosteatosis status but were significantly lower in those with IR (p=0.03). LRG1 was negatively correlated with waist circumference, DBP, insulin, HOMA-IR, TG, TC, and LDL-C, and positively with HDL-C (p<0.05). Adiponectin showed inverse correlations with waist circumference, SBP, insulin, HOMA-IR, TC, LDL-C, TG, and a positive correlation with HDL-C (p<0.05).
Conclusion:
Findings suggest LRG1 may not serve as a direct biomarker for hepatosteatosis in obese children but was negatively associated with IR and dyslipidemia. These results highlight a complex role for LRG1 in obesity-related metabolic dysfunction and support further longitudinal and pathophysiological studies.
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