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Estrogen receptor gene polymorphism and generalized osteoarthritis
T Ushiyama1, H Ueyama, K Inoue
1Department of Orthopedic Surgery, Shiga University of Medical Science, Seta, Otsu, Japan.
The Journal of Rheumatology
|February 11, 1998
Summary
A specific estrogen receptor gene variant (PpXx genotype) is linked to generalized osteoarthritis (OA) in Japanese women. This finding suggests a genetic marker for OA development and progression.
Area of Science:
- Genetics
- Rheumatology
- Molecular Biology
Background:
- Generalized osteoarthritis (OA) is a prevalent condition, disproportionately affecting women.
- Genetic factors are recognized as primary risk factors for OA, yet specific genes remain unidentified.
- The role of estrogen receptor gene polymorphisms in OA pathogenesis requires further investigation.
Purpose of the Study:
- To examine the association between estrogen receptor gene polymorphisms and generalized OA.
- To identify potential genetic markers for OA susceptibility.
Main Methods:
- Analysis of Pvu II and Xba I restriction fragment length polymorphisms (RFLP) in the estrogen receptor gene.
- Study population included 65 Japanese patients with generalized OA and 318 healthy female controls.
- Genotypes were denoted as Pp (Pvu II) and Xx (Xba I) based on restriction site presence/absence.
Main Results:
- The estrogen receptor genotype PpXx demonstrated a significant association with generalized OA (odds ratio 1.86, p = 0.039).
- This association was more pronounced in patients exhibiting severe radiographic OA changes.
- The PpXx genotype was also more prevalent in younger OA patients.
Conclusions:
- Certain variants of the estrogen receptor gene may serve as a genetic marker for generalized OA.
- Further research is necessary to elucidate the precise mechanisms by which this genotype influences OA development.