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Correlation between PPAR Gene Polymorphisms and Primary Nephrotic Syndrome in Children
Jiaping Jin1, Guixia Ding, Huaying Bao
1Department of Nephrology, Nanjing Children's Hospital, Nanjing Medical University, 72 Guangzhou Road, Nanjing, Jiangsu 210008, China.
Genetic variations in PPAR-γ and PGC-1α influence metabolic factors in children with nephrotic syndrome, potentially impacting disease prognosis. These genetic factors may affect insulin and triglyceride levels in pediatric patients.
Area of Science:
- Genetics
- Pediatrics
- Nephrology
Background:
- Pediatric primary nephrotic syndrome (PNS) is a chronic condition linked to metabolic and immune issues.
- Peroxisome proliferator-activated receptor (PPAR) gene variations are implicated in metabolic and kidney diseases.
Purpose of the Study:
- To investigate the association between specific PPAR polymorphisms and pediatric primary nephrotic syndrome (PNS).
- To analyze correlations between these polymorphisms and clinical, metabolic, and steroid response indicators in PNS patients.
Main Methods:
- Compared distributions of PPAR-γ (Pro12Ala, Val290Met), PGC-1α (Gly482Ser), and PPAR-α (Leu162Val) single nucleotide polymorphisms (SNPs) in children with PNS and controls.
- Assessed correlations with clinical and metabolic markers, including insulin sensitivity and hormone responsiveness.
Main Results:
- No significant differences in overall polymorphism distributions between PNS cases and controls.
- PNS patients with PPAR-γ (Pro12Ala) PP genotype showed higher insulin, IgA, HOMA-IR, and lower insulin sensitivity.
- PGC-1α (Gly482Ser) A allele associated with lower CD8+ T-cells and higher triglycerides and complement C3.
Conclusions:
- PPAR-γ (Pro12Ala) and PGC-1α (Gly482Ser) SNPs may influence insulin and triglyceride metabolism in pediatric nephrotic syndrome.
- These genetic variations could be relevant to the prognosis of pediatric primary nephrotic syndrome.
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Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...