3. Identfication of point mutations in PARK2 gene with Parkinson’s disease patients using sequencing method

Pham Le Anh Tuan, Nguyen Thanh Binh, Tran Van Khanh, Tran Huy Thinh

Main Article Content

Abstract

PARK2 encodes Parkin, a E3 ubiquitin ligase enzyme. Mutations on PARK2 gene were often recorded in autosomal recessive juvenile form of Parkinson’s. Object: Point mutations in PARK2 genes were found in early-onset Parkinson patients (before age of 40) at the rate of 9 - 12%. We suggest that it is necessary to conduct an investigation of PARK2 mutations in Vietnamese cohort. This cohort study was performed in 30 Parkinson patients with average age of 52.6 ± 7.4 years old, male/female ratio is 1.3, using Sanger sequencing. Three different types of point mutations were found in three patients (10%). All these three patients are currently in phase I and phase II of the disease. This study proved to be significant to not only patients and their families but also to the database of Parkinson disease in Vietnam.

Article Details

References

1. Shi MM, Shi CH, Xu YM. Rab GTPases: The key players in the molecular pathway of Parkinson’s disease. Front Cell Neurosci. 2017;11. doi: 10.3389/FNCEL.2017.00081.
2. Shulman JM, De Jager PL, Feany MB. Parkinson’s disease: genetics and pathogenesis. Annu Rev Pathol. 2011;6:193-222. doi: 10.1146/ANNUREV-PATHOL-011110-130242.
3. Chu MK, Kim WC, Choi JM, et al. Analysis of dosage mutation in PARK2 among Korean patients with early-onset or familial Parkinson’s disease. J Clin Neurol. 2014;10(3):244-248. doi: 10.3988/JCN.2014.10.3.244.
4. Kann M, Jacobs H, Mohrmann K, et al. Role of parkin mutations in 111 community-based patients with early-onset parkinsonism. Ann Neurol. 2002;51(5):621-625. doi: 10.1002/ANA.10179.
5. Sun M, Latourelle JC, Wooten GF, et al. Influence of heterozygosity for parkin mutation on onset age in familial Parkinson disease: the GenePD study. Arch Neurol. 2006;63(6):826-832. doi: 10.1001/ARCHNEUR.63.6.826.
6. Klein C, Djarmati A, Hedrich K, et al. PINK1, Parkin, and DJ-1 mutations in Italian patients with early-onset parkinsonism. Eur J Hum Genet EJHG. 2005;13(9):1086-1093. doi: 10.1038/SJ.EJHG.5201455.
7. Li H, Yusufujiang A, Naser S, et al. Mutation analysis of PARK2 in a Uyghur family with early-onset Parkinson’s disease in Xinjiang, China. J Neurol Sci. 2014;342(1):21-24. doi: 10.1016/J.JNS.2014.03.044.