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Association of VKORC1-1639G>A polymorphism with susceptibility to ossification of the posterior longitudinal ligament of the spine: a Korean study Korean study

Authors
 Dong-Kyu Chin  ;  In-Bo Han  ;  Alexander E. Ropper  ;  Young-Joo Jeon  ;  Do-Hyung Kim  ;  Young-Sung Kim  ;  Youngseok Park  ;  Yang D. Teng  ;  Nam-Keun Kim  ;  Sung-Uk Kuh 
Citation
 ACTA NEUROCHIRURGICA, Vol.155(10) : 1937-1942, 2013 
Journal Title
ACTA NEUROCHIRURGICA
ISSN
 0001-6268 
Issue Date
2013
MeSH
Adult ; Aged ; Asian Continental Ancestry Group/genetics ; Female ; Genetic Predisposition to Disease* ; Genotype ; Humans ; Male ; Middle Aged ; Ossification of Posterior Longitudinal Ligament/etiology ; Ossification of Posterior Longitudinal Ligament/genetics* ; Polymorphism, Single Nucleotide/genetics* ; Sex Factors ; Vitamin K Epoxide Reductases/genetics*
Keywords
Metabolism ; Ossification of the posterior longitudinal ligament ; Polymorphism ; VKORC1
Abstract
BACKGROUND: Abnormalities of bone metabolism may be involved in the pathogenesis of ossification of the posterior longitudinal ligament (OPLL) of the spine. Besides its hemostatic effect, vitamin K epoxide reductase complex subunit 1 (VKORC1) plays a pivotal role in bone mineralization. The aim of this study is to investigate whether single nucleotide polymorphisms (SNPs) of the VKORC1 gene are associated with the occurrence of OPLL in a Korean population.

METHOD: A total of 98 patients with OPLL and 200 controls were genotyped for the VKORC1-1639G>A SNP (rs9923231) by polymerase chain reaction and restriction fragment length polymorphism analysis. All the patients (n = 98) in this study underwent surgery (60, posterior-only approach; 36, anterior-only approach; 2, combined anterior and posterior approach) during their admission. We analyzed this association separately according to the gender and OPLL subgroup: OPLL continuous group (continuous type plus mixed type) and OPLL segmental group (segmental and localized type).

RESULTS: We found that the genotype VKORC1-1639G>A frequency was significantly associated with the occurrence of the OPLL in the female group (adjusted odds ratio = 5.22, 95 % confidence interval: 1.675 to 16.269, p = 0.004). However, there was no overall association between the OPLL susceptibility and VKORC1-1639G>A polymorphism. A subgroup analysis did not show any significant correlation between VKORC1-1639G>A polymorphism and subgroup of OPLL either.

CONCLUSION: Our results suggest that the VKORC1-1639G>A SNP may increase susceptibility to OPLL in women. However, there was only a statistical association in the female group despite a number of stratified analyses. Therefore, the findings should be interpreted with caution, and further genetic study is needed to improve our understanding of the role of VKORC1 polymorphisms in determining the risk of OPLL occurrence.
Full Text
http://link.springer.com/article/10.1007%2Fs00701-013-1747-4
DOI
10.1007/s00701-013-1747-4
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
Kuh, Sung Uk(구성욱) ORCID logo https://orcid.org/0000-0003-2566-3209
Chin, Dong Kyu(진동규) ORCID logo https://orcid.org/0000-0002-9835-9294
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/88284
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