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GBA1 variants and Parkinson’s Disease: A dual approach combining clinical data and literature review
Abstract
Aim: The GBA1 (ENSG00000177628) gene, a key susceptibility gene in Parkinson’s disease (PD) and closely linked to Gaucher disease, has garnered significant research attention over the past two decades. Mutations in GBA1 are associated with an elevated risk of developing PD. This study aims to elucidate genetic mutations related to PD in a cohort of patients undergoing clinical exome analysis. We aimed to investigate the clinical and genetic profiles of patients with Parkinson’s disease, focusing on GBA1 gene mutations and additional neurodegenerative-related genetic alterations.
Materials and Methods: Fourteen patients with a preliminary diagnosis of Parkinson's disease underwent clinical exome analysis. The research included genetic testing to identify variants of uncertain significance, likely pathogenic mutations, and pathogenic mutations in the GBA1 gene. Further genetic alterations were evaluated in patients with positive GBA1 mutation results.
Results: 14 out of 177 diagnosed individuals had GBA1 mutations. The group had 8 men and 6 women with a mean onset age of 53.7 years. Tremor, stiffness, bradykinesia, hypomimia, and postural instability predominated. Dopamine agonists were often administered for symptoms. Disorders like depression, anxiety, hypercholesterolemia, and diabetes were frequent. GBA1 gene study found many missense variants, with the p.Asn409Ser (N370S) mutation being the most common. Four individuals also had mutations in EIF4G1, APP, and SLC20A2, demonstrating a complex genetic landscape affecting PD.
Conclusion: Our research highlights PD's genetic diversity, particularly GBA1 mutations' role in disease onset and progression. Additional genetic variants may worsen PD symptoms. Further research is needed on these mutations' pathogenicity and consequences on patient care.
Keywords
Supporting Institution
None
Ethical Statement
Etik kurul onayı alınmıştır.
Thanks
Hasta ve yakınlarına teşekkürler.
References
- Savitt JM, Dawson VL, Dawson TM. Diagnosis and treatment of Parkinson disease: molecules to medicine. J Clin Invest. 2006;116(7):1744-54.
- Lesage S, Brice A. Parkinson's disease: from monogenic forms to genetic susceptibility factors. Hum Mol Genet. 2009;18(R1):R48-59.
- Halperin A, Elstein D, Zimran A. Increased incidence of Parkinson disease among relatives of patients with Gaucher disease. Blood Cells Mol Dis. 2006;36(3):426-8.
- Alcalay RN, Levy OA, Waters CC, Fahn S, Ford B, Kuo SH, et al. Glucocerebrosidase activity in Parkinson's disease with and without GBA mutations. Brain. 2015;138(Pt 9):2648-58.
- Beavan M, Schapira AH. Glucocerebrosidase Gene Mutation and Preclinical Markers of Parkinson Disease-Reply. JAMA Neurol. 2015;72(6):724.
- Macerollo A. Glucocerebrosidase Gene Mutation and Preclinical Markers of Parkinson Disease. JAMA Neurol. 2015;72(6):723-4.
- Chatterjee D, Krainc D. Mechanisms of Glucocerebrosidase Dysfunction in Parkinson's Disease. J Mol Biol. 2023;435(12):168023.
- Huang Y, Yu F, Feng L, Wang X. The Association between E326K of GBA and the Risk of Parkinson's Disease. Parkinsons Dis. 2018;2018:1048084.
Details
Primary Language
English
Subjects
Medical Genetics (Excl. Cancer Genetics) , Neurology and Neuromuscular Diseases
Journal Section
Research Article
Publication Date
June 10, 2025
Submission Date
November 12, 2024
Acceptance Date
January 27, 2025
Published in Issue
Year 1970 Volume: 64 Number: 2