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Software-Assisted Quantitative Measurement of Osteoarthritic Subchondral Bone Thickness
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DVWA gene polymorphisms and osteoarthritis.

Valentina Bravatà1, Luigi Minafra2, Giusi I Forte3

  • 1IBFM CNR-LATO, Cefalù, PA, Italy. valentina.bravata@ibfm.cnr.it.

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|February 5, 2015
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Summary

Genetic variations in the DVWA gene may influence osteoarthritis (OA) severity. Specific single nucleotide polymorphisms (SNPs) were associated with radiographic joint damage in Sicilian patients, suggesting a role in OA progression.

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Area of Science:

  • Genetics
  • Orthopedics
  • Rheumatology

Background:

  • Osteoarthritis (OA) is a degenerative joint disease with a significant genetic component.
  • Previous research identified the rs11718863 DVWA single nucleotide polymorphism (SNP) associated with more severe radiographic grades in Sicilian OA patients.
  • This study investigates five DVWA SNPs (rs11718863, rs7639618, rs7651842, rs7639807, rs17040821) for potential functional changes impacting OA.

Purpose of the Study:

  • To explore potential associations between DVWA gene SNPs and clinical/radiographic features of knee osteoarthritis (OA).
  • To investigate the role of specific DVWA SNPs in OA progression and severity.

Main Methods:

  • Genotyping of five DVWA SNPs in 61 Sicilian knee OA patients and 100 healthy controls.
  • Clinical assessment using American Knee Society Scores (AKSS) and radiographic evaluation using Kellgren and Lawrence (KL) grades.
  • Linkage Disequilibrium (LD) analysis to assess SNP haplotype segregation and compare Minor Allele Frequencies (MAF) with European populations.

Main Results:

  • All investigated DVWA SNPs exhibited higher Minor Allele Frequencies (MAF) in the Sicilian cohort compared to European populations.
  • The rs7639618 SNP demonstrated a statistically significant association with KL radiographic grade.
  • Linkage Disequilibrium (LD) was observed between rs11718863 and rs7639618, and among rs7651842, rs7639807, and rs17040821.
  • Three individuals were homozygous for the MAF alleles of rs7651842, rs7639807, and rs17040821.

Conclusions:

  • This preliminary research highlights potential associations between DVWA SNPs and OA clinical and radiographic parameters.
  • The findings support a multidisciplinary approach to OA research, integrating clinical, radiological, and genetic data for improved disease grading.
  • DVWA SNPs may serve as potential genetic markers for OA progression and severity.