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Updated: Dec 25, 2025

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
SAP97 polymorphisms associated with early onset Parkinson's disease
Xusan Xu1, Susu Xiong2, Xia Zhou3
1Institute of Neurology, Guangdong Medical University, Zhanjiang, 524001, China; Maternal and Children's Health Research Institute, Shunde Maternal and Children's Hospital, Guangdong Medical University, Foshan, 528300, China.
Genetic variations in the SAP97 gene, specifically SNPs rs3915512 and rs9843659, are linked to early-onset Parkinson's disease (PD) in the Han Chinese population. These findings offer insights into genetic risk factors for PD.
Area of Science:
- Neurogenetics
- Human Genetics
Background:
- Parkinson's disease (PD) is a progressive neurodegenerative disorder.
- Genetic factors play a role in the etiology of sporadic PD.
- The SAP97 gene is implicated in neuronal function and synaptic plasticity.
Purpose of the Study:
- To investigate the association between SAP97 genetic polymorphisms (rs3915512 and rs9843659) and sporadic Parkinson's disease in a Han Chinese population.
- To identify potential genetic markers for early prevention and treatment strategies for PD.
Main Methods:
- Genotyping of SAP97 SNPs rs3915512 and rs9843659 in 317 PD patients and 317 healthy controls using the improved multiplex ligation detection reaction (imLDR) technique.
- Analysis of the association between individual SNPs, combined SNPs, and haplotypes with PD risk and age of onset.
Main Results:
- SAP97 SNPs rs3915512 and rs9843659 were not associated with the overall risk of PD.
- The minor alleles of rs3915512 and rs9843659 were significantly more prevalent in PD patients with an early age of onset.
- The CA haplotype of SAP97 was significantly associated with early onset PD.
Conclusions:
- The SAP97 SNPs rs3915512 and rs9843659, along with the CA haplotype, are potentially associated with early onset PD in the Chinese Han population.
- These findings contribute valuable genetic data for understanding and potentially predicting early-onset PD.
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