Polymorphisms of DRD2 and DRD3 genes and Parkinson's disease: A meta‑analysis

  • Authors:
    • Dongjun Dai
    • Yunliang Wang
    • Lingyan Wang
    • Jinfeng Li
    • Qingqing Ma
    • Jianmin Tao
    • Xingyu Zhou
    • Hanlin Zhou
    • Yi Jiang
    • Guanghui Pan
    • Limin Xu
    • Ping Ru
    • Danfeng Lin
    • Jun Pan
    • Leiting Xu
    • Meng Ye
    • Shiwei Duan
  • View Affiliations

  • Published online on: January 13, 2014     https://doi.org/10.3892/br.2014.220
  • Pages: 275-281
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Abstract

Parkinson's disease (PD) is the second most common neurodegenerative disorder that affects ~2% of the population aged ≥65 years. The degeneration of dopamine neurons in the substantia nigra contributes to the pathogenesis of PD. Dopamine receptor D2 (DRD2) and dopamine receptor D3 (DRD3) are two key subtypes of dopamine receptors. The aim of our study was to evaluate the association between the polymorphisms of DRD2 and DRD3 genes and PD. Meta‑analyses were conducted from 16 studies (46 stages) among 4,279 cases and 5,661 controls between PD and 9 polymorphisms (DRD2: rs1800497, rs1079597, rs6278, rs6279, rs273482, rs1799732 and rs1076563; DRD3: rs6280 and rs2134655). A significant association was observed between DRD3 rs2134655 polymorphism and PD [P=0.01, odds ratio (OR)=1.17, 95% confidence interval (CI): 1.03‑1.32] and a borderline association was observed between DRD2 rs1800497 polymorphism and PD in Europeans (P=0.05, OR=1.13, 95% CI: 1.00‑1.27). Findings of the current meta‑analysis suggested that DRD3 rs2134655 polymorphism was associated with a 17% increased risk of PD and that DRD2 rs1800497 polymorphism had a potential to increase the risk of PD by 13% in Europeans. Future large‑scale studies are required to confirm the ethnic difference of DRD2 rs1800497 polymorphism and to determine whether there were significant associations of PD with other polymorphisms in DRD2 and DRD3 genes.
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March-April 2014
Volume 2 Issue 2

Print ISSN: 2049-9434
Online ISSN:2049-9442

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Spandidos Publications style
Dai D, Wang Y, Wang L, Li J, Ma Q, Tao J, Zhou X, Zhou H, Jiang Y, Pan G, Pan G, et al: Polymorphisms of DRD2 and DRD3 genes and Parkinson's disease: A meta‑analysis. Biomed Rep 2: 275-281, 2014.
APA
Dai, D., Wang, Y., Wang, L., Li, J., Ma, Q., Tao, J. ... Duan, S. (2014). Polymorphisms of DRD2 and DRD3 genes and Parkinson's disease: A meta‑analysis. Biomedical Reports, 2, 275-281. https://doi.org/10.3892/br.2014.220
MLA
Dai, D., Wang, Y., Wang, L., Li, J., Ma, Q., Tao, J., Zhou, X., Zhou, H., Jiang, Y., Pan, G., Xu, L., Ru, P., Lin, D., Pan, J., Xu, L., Ye, M., Duan, S."Polymorphisms of DRD2 and DRD3 genes and Parkinson's disease: A meta‑analysis". Biomedical Reports 2.2 (2014): 275-281.
Chicago
Dai, D., Wang, Y., Wang, L., Li, J., Ma, Q., Tao, J., Zhou, X., Zhou, H., Jiang, Y., Pan, G., Xu, L., Ru, P., Lin, D., Pan, J., Xu, L., Ye, M., Duan, S."Polymorphisms of DRD2 and DRD3 genes and Parkinson's disease: A meta‑analysis". Biomedical Reports 2, no. 2 (2014): 275-281. https://doi.org/10.3892/br.2014.220