European Spine Journal

, Volume 15, Issue 10, pp 1521–1528

Distinct association of gene polymorphisms of estrogen receptor and vitamin D receptor with lumbar spondylosis in post-menopausal women

  • Yu Koshizuka
  • Naoshi Ogata
  • Masataka Shiraki
  • Takayuki Hosoi
  • Atsushi Seichi
  • Katsushi Takeshita
  • Kozo Nakamura
  • Hiroshi Kawaguchi
Original Article

DOI: 10.1007/s00586-005-0005-8

Cite this article as:
Koshizuka, Y., Ogata, N., Shiraki, M. et al. Eur Spine J (2006) 15: 1521. doi:10.1007/s00586-005-0005-8

Abstract

Contribution of genetic backgrounds to the etiology of lumbar spondylosis has been suggested by epidemiological studies. This study was designed to determine the association of restriction fragment length polymorphisms (RFLPs) of estrogen receptor (ER), vitamin D receptor (VDR), parathyroid hormone (PTH) and interleukin-1β (IL-1β) genes with the radiological severity of lumbar spondylosis at the disk level from L1/2 to L5/S1 in Japanese post-menopausal women. ER and VDR RFLP haplotypes were associated with the severity of spondylosis in the upper levels (L1/2 and L2/3) more than in the lower levels. Association of ER genotype was more pronounced in the group younger than average than in the older group, while that of VDR genotype was more significant in the older group. Neither PTH nor IL1-β RFLP was associated with the severity at any levels in either stratified group. We thus conclude that ER and VDR genes may contribute to lumbar spondylosis in a distinct manner: estrogen sensitivity influences the severity in the early phase after menopause while vitamin D plays an important role at older ages when the contribution of estrogen loss is weaker.

Keywords

Spondylosis Polymorphism Estrogen receptor Vitamin D receptor 

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Yu Koshizuka
    • 1
  • Naoshi Ogata
    • 1
  • Masataka Shiraki
    • 2
  • Takayuki Hosoi
    • 3
  • Atsushi Seichi
    • 1
  • Katsushi Takeshita
    • 1
  • Kozo Nakamura
    • 1
  • Hiroshi Kawaguchi
    • 1
  1. 1.Department of Orthopaedic Surgery, Faculty of MedicineUniversity of TokyoTokyoJapan
  2. 2.Research Institute and Practice for Involutional DiseasesNaganoJapan
  3. 3.Tokyo Metropolitan Geriatric HospitalTokyoJapan

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