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ASSOSIATION ANALYSYS OF 11 POLYMORPHISMS OF SNPS WITH ENDOTHELIUM DEPENDENT VASODILATATION IN CHILDREN WITH DIABETES
Summary
Certain genetic variations in eNOS, Eln, NPPB, and ACE genes are linked to reduced endothelium-dependent vasodilation (EDVD) in children with type 1 diabetes. These specific genotypes significantly impact EDVD levels, independent of disease duration or severity.
Area of Science:
- Cardiovascular Genetics
- Pediatric Endocrinology
- Molecular Biology
Background:
- Endothelium-dependent vasodilation (EDVD) is crucial for vascular health.
- Type 1 diabetes (T1D) in children can impact vascular function.
- Genetic predispositions may influence EDVD in pediatric T1D.
Purpose of the Study:
- To investigate the association between single nucleotide polymorphisms (SNPs) in 10 genes and EDVD levels in children with T1D.
- To identify specific genetic variants that correlate with impaired vasodilation.
Main Methods:
- Studied 11 SNPs across 10 genes in 45 children with T1D.
- Analyzed polymorphisms in eNOS, Eln, NPPB, ACE, LMP2, AGT, ATR1, MMP9, MMP2, and PSMA6.
- Assessed EDVD levels and correlated them with specific genotypes.
Main Results:
- Children with eNOS (G894→T) G/T, Eln (A1266→G) G/G, NPPB (T-381→C) C/C, and ACE (I/D) I/D genotypes exhibited lower EDVD (P<0.05).
- These associations were independent of disease duration, HbA1c, or initial brachial artery diameter.
- A combination of these genotypes showed a significant impact on EDVD reduction (r=0.61; P<0.01).
Conclusions:
- Specific genotypes of eNOS, Eln, NPPB, and ACE are associated with reduced EDVD in pediatric T1D.
- These genetic factors play a significant role in vascular dysfunction in T1D children.
- Further research into these genetic markers could inform risk stratification and therapeutic strategies.
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