Chinese Parkinson’s Patients’ Motor and Cognitive Decline Linked to GBA Genotype

Published on February 10, 2023

Imagine you’re trying to navigate through a crowded amusement park, but there’s a glitch in your map app that makes it harder for you to move around and find your way. That glitch is similar to what happens in the brains of Parkinson’s disease patients with a certain gene variant called GBA. A recent study investigated the impact of GBA genotype on the progression of motor and cognitive decline in Chinese patients with Parkinson’s disease. The researchers found that patients with the GBA gene variant experienced faster decline in both motor function (think movement and coordination) and cognitive abilities compared to those without the gene variant. Specifically, they observed greater disability in terms of bradykinesia (slowness of movement), axial impairment (difficulties with posture and balance), and visuospatial/executive function (trouble with spatial reasoning and problem-solving). These findings suggest that understanding the role of GBA genotype can help predict prognosis and inform clinical trial design for Parkinson’s disease. If you want to dive deeper into this fascinating research, check out the full article!

ObjectiveVariants in the glucocerebrosidase (GBA) gene are the most common and significant risk factor for Parkinson’s disease (PD). However, the impact of GBA variants on PD disease progression in the Chinese population remains unclear. This study aimed to explore the significance of GBA status on motor and cognitive impairment in a longitudinal cohort of Chinese patients with PD.MethodsThe entire GBA gene was screened by long-range polymerase chain reaction (LR-PCR) and next generation sequencing (NGS). A total of 43 GBA-related PD (GBA-PD) and 246 non-GBA-mutated PD (NM-PD) patients with complete clinical data at baseline and at least one follow-up were recruited for this study. The associations of GBA genotype with rate of motor and cognitive decline, as measured by Unified PD Rating Scale (UPDRS) motor and Montreal Cognitive Assessment (MoCA), were assessed by linear mixed-effect models.ResultsThe estimated (standard error, SE) UPDRS motor [2.25 (0.38) points/year] and MoCA [−0.53 (0.11) points/year] progression rates in the GBA-PD group were significantly faster than those in the NM-PD group [1.35 (0.19); −0.29 (0.04) points/year; respectively]. In addition, the GBA-PD group showed significantly faster estimated (SE) bradykinesia [1.04 (0.18) points/year], axial impairment [0.38 (0.07) points/year], and visuospatial/executive [−0.15 (0.03) points/year] progression rates than the NM-PD group [0.62 (0.10); 0.17 (0.04); −0.07 (0.01) points/year; respectively].ConclusionGBA-PD is associated with faster motor and cognitive decline, specifically greater disability in terms of bradykinesia, axial impairment, and visuospatial/executive function. Better understanding of GBA-PD progression may help predict prognosis and improve clinical trial design.

Read Full Article (External Site)

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes:

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>