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Relationship between the Apolipoprotein AI, B gene polymorphism and the risk of non-traumatic osteonecrosis.

AbstractBACKGROUND:
Previous studies suggested that Apolipoprotein AI (ApoAI) and apolipoprotein B (ApoB) gene polymorphisms may result in lipid metabolism disorders. Genetic polymorphisms in these genes may be associated with the occurrence of osteonecrosis.
METHODS:
We designed a case-control study including 429 patients of osteonecrosis and 368 age- and sex-matched control subjects. Polymerase chain reaction was used to amplify the DNA fragments in promoter -75 G > A of ApoAI gene and EcoR I, Xba I and 3'-VNTR of ApoB gene in osteonecrosis patients and healthy controls. We utilized polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method to genotype these four single nucleotide polymorphisms (SNPs).
RESULTS:
For -75 G > A polymorphism of ApoAI, AA genotype frequency (0.501) was significantly higher in patients with osteonecrosis than that in control (0.462) subjects (P <0.001), GA genotype frequency (0.170) was significantly lower than that in the control (0.310) group (P <0.0001). In osteonecrosis patients, the odds ratio (OR) of A allele was 3.932 (95% CI: 3.0847 ~ 5.0123), which suggested that subjects carrying A allele of promoter region -75 G > A of ApoAI gene had higher susceptibility to osteonecrosis than G allele carriers. The genotype and allele frequency distributions showed no significant difference in EcoR I, Xba Iand 3'-VNTR loci of ApoB gene between the osteonecrosis group and control group.
CONCLUSION:
Our study suggested that ApoAI gene -75G > A polymorphism may be associated with susceptibility to osteonecrosis in Chinese population. However, our results need further investigation with large sample size and various populations.
AuthorsJi-Min Yin, Zhao Liu, Shi-Chang Zhao, Yan-Jie Guo, Zhong-Tang Liu
JournalLipids in health and disease (Lipids Health Dis) Vol. 13 Pg. 149 ( 2014) ISSN: 1476-511X [Electronic] England
PMID25248404 (Publication Type: Journal Article)
Chemical References
  • APOA1 protein, human
  • APOB protein, human
  • Apolipoprotein A-I
  • Apolipoprotein B-100
Topics
  • Adult
  • Apolipoprotein A-I (genetics)
  • Apolipoprotein B-100 (genetics)
  • Case-Control Studies
  • Female
  • Gene Frequency
  • Genetic Association Studies
  • Genetic Predisposition to Disease
  • Humans
  • Male
  • Middle Aged
  • Minisatellite Repeats
  • Osteonecrosis (genetics)
  • Polymorphism, Restriction Fragment Length
  • Polymorphism, Single Nucleotide
  • Risk Factors

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