scholarly journals Changes in Phonation and Their Relations with Progress of Parkinson’s Disease

2018 ◽  
Vol 8 (12) ◽  
pp. 2339 ◽  
Author(s):  
Zoltan Galaz ◽  
Jiri Mekyska ◽  
Vojtech Zvoncak ◽  
Jan Mucha ◽  
Tomas Kiska ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Scientific Community ◽  
Partial Correlation ◽  
Acoustic Analysis ◽  
Partial Correlation Analysis ◽  
Clinical Scales ◽  
Clinical Scores ◽  
The Relationship

Hypokinetic dysarthria, which is associated with Parkinson’s disease (PD), affects several speech dimensions, including phonation. Although the scientific community has dealt with a quantitative analysis of phonation in PD patients, a complex research revealing probable relations between phonatory features and progress of PD is missing. Therefore, the aim of this study is to explore these relations and model them mathematically to be able to estimate progress of PD during a two-year follow-up. We enrolled 51 PD patients who were assessed by three commonly used clinical scales. In addition, we quantified eight possible phonatory disorders in five vowels. To identify the relationship between baseline phonatory features and changes in clinical scores, we performed a partial correlation analysis. Finally, we trained XGBoost models to predict the changes in clinical scores during a two-year follow-up. For two years, the patients’ voices became more aperiodic with increased microperturbations of frequency and amplitude. Next, the XGBoost models were able to predict changes in clinical scores with an error in range 11–26%. Although we identified some significant correlations between changes in phonatory features and clinical scores, they are less interpretable. This study suggests that it is possible to predict the progress of PD based on the acoustic analysis of phonation. Moreover, it recommends utilizing the sustained vowel /i/ instead of /a/.

scholarly journals Thalamic white matter macrostructure and subnuclei volumes in Parkinson’s disease depression

2022 ◽  
Vol 8 (1) ◽  
Author(s):  
R. Bhome ◽  
A. Zarkali ◽  
G. E. C. Thomas ◽  
J. E. Iglesias ◽  
J. H. Cole ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
White Matter ◽  
Mixed Model ◽  
Linear Mixed Model ◽  
Neural Structure ◽  
Generalised Linear Mixed Model ◽  
Antidepressant Use ◽  
The Relationship

AbstractDepression is a common non-motor feature of Parkinson’s disease (PD) which confers significant morbidity and is challenging to treat. The thalamus is a key component in the basal ganglia-thalamocortical network critical to the pathogenesis of PD and depression but the precise thalamic subnuclei involved in PD depression have not been identified. We performed structural and diffusion-weighted imaging (DWI) on 76 participants with PD to evaluate the relationship between PD depression and grey and white matter thalamic subnuclear changes. We used a thalamic segmentation method to divide the thalamus into its 50 constituent subnuclei (25 each hemisphere). Fixel-based analysis was used to calculate mean fibre cross-section (FC) for white matter tracts connected to each subnucleus. We assessed volume and FC at baseline and 14–20 months follow-up. A generalised linear mixed model was used to evaluate the relationship between depression, subnuclei volume and mean FC for each thalamic subnucleus. We found that depression scores in PD were associated with lower right pulvinar anterior (PuA) subnucleus volume. Antidepressant use was associated with higher right PuA volume suggesting a possible protective effect of treatment. After follow-up, depression scores were associated with reduced white matter tract macrostructure across almost all tracts connected to thalamic subnuclei. In conclusion, our work implicates the right PuA as a relevant neural structure in PD depression and future work should evaluate its potential as a therapeutic target for PD depression.

scholarly journals Hallucinations and Development of Dementia in Parkinson’s Disease

2020 ◽  
Vol 10 (4) ◽  
pp. 1643-1648 ◽  
Author(s):  
Wojciech Gryc ◽  
Kathryn A. Roberts ◽  
Cyrus P. Zabetian ◽  
Daniel Weintraub ◽  
John Q. Trojanowski ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Neuropsychiatric Symptoms ◽  
Cognitive Diagnosis ◽  
Neuropsychiatric Inventory ◽  
Study Partner ◽  
The Relationship

Neuropsychiatric symptoms are common in Parkinson’s disease (PD). We investigated the relationship between neuropsychiatric symptoms and current and future diagnosis of PD dementia (PDD). Individuals with PD who had a study partner were enrolled (n = 696). Study partners were administered the Neuropsychiatric Inventory or Neuropsychiatric Inventory Questionnaire at baseline. Participants were assigned a cognitive diagnosis at baseline and follow up visits. Hallucinations were significantly associated with a diagnosis of PDD cross-sectionally (p < 0.001) and with shortened time to dementia longitudinally among initially nondemented participants (n = 444; p = 0.005). Screening for hallucinations may be useful for assessing risk of dementia in participants with PD.

scholarly journals Delayed orthostatic hypotension in Parkinson’s disease

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Sang-Won Yoo ◽  
Joong-Seok Kim ◽  
Ji-Yeon Yoo ◽  
Eunkyeong Yun ◽  
Uicheul Yoon ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Orthostatic Hypotension ◽  
Disease Severity ◽  
Cortical Thickness ◽  
Early Stage ◽  
Brain Magnetic Resonance Imaging ◽  
Clinical Scales ◽  
Drug Naïve

AbstractOrthostatic hypotension (OH) is relatively common in the early stage of Parkinson’s disease (PD). It is divided into delayed OH and classical OH. Classical OH in PD has been investigated widely, however, the clinical implications of delayed OH in PD have seldom been studied. The purpose of this study is to characterize delayed OH in PD. A total of 285 patients with early drug-naïve PD were enrolled and divided into three groups according to orthostatic change: no-OH, delayed OH, and classical OH. The disease severity in terms of motor, non-motor, and cognitive functions was assessed. The cortical thickness of 82 patients was analyzed with brain magnetic resonance imaging. The differences among groups and linear tendency in the order of no-OH, delayed OH, and classical OH were investigated. Seventy-seven patients were re-evaluated. Initial and follow-up evaluations were explored to discern any temporal effects of orthostasis on disease severity. Sixty-four (22.5%) patients were defined as having delayed OH and 117 (41.1%) had classical OH. Between-group comparisons revealed that classical OH had the worst outcomes in motor, non-motor, cognitive, and cortical thickness, compared to the other groups. No-OH and delayed OH did not differ significantly. Linear trends across the pre-ordered OH subtypes found that clinical parameters worsened along with the orthostatic challenge. Clinical scales deteriorated and the linear gradient was maintained during the follow-up period. This study suggests that delayed OH is a mild form of classical OH in PD. PD with delayed OH has milder disease severity and progression.

Depression and disability in Parkinson's disease: a follow-up of 132 cases

1988 ◽  
Vol 18 (1) ◽  
pp. 49-55 ◽  
Author(s):  
R. G. Brown ◽  
B. Maccarthy ◽  
A.-M. Gotham ◽  
G. J. Der ◽  
C. D. Marsden
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Clinical Management ◽  
Somatic Symptoms ◽  
Rate Of Change ◽  
Self Blame ◽  
One Year ◽  
Relative Change ◽  
The Relationship

SynopsisPatients with Parkinson's disease, 132 in number, were followed up after approximately one year, and measures of depression and disability re-administered. Depression was common on both occasions, and was characterized by dysphoria, pessimism and somatic symptoms, but not guilt or self-blame. Depression and disability were associated on both occasions. The relationship between changes in disability and depression across time was complex. In trying to understand changes in depression, the absolute change in disability may be less important than the relative change and rate of change. The results were discussed in relation to findings from other disease groups, and the implications for the clinical management of depression in Parkinson's disease.

scholarly journals Thalamic white matter macrostructure and subnuclei volumes in Parkinson's disease depression

2021 ◽  
Author(s):  
Rohan Bhome ◽  
Angeliki Zarkali ◽  
James Cole ◽  
Rimona Weil
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
White Matter ◽  
Diffusion Weighted Imaging ◽  
Intracranial Volume ◽  
Volume Loss ◽  
Diffusion Weighted ◽  
Antidepressant Use ◽  
The Relationship

Objective Depression is a common non-motor feature of Parkinson's disease (PD) which confers significant morbidity and is often challenging to treat. The thalamus is a key component in the basal ganglia-thalamocortical network critical to pathogenesis of PD and depression but the precise thalamic subnuclei involved in PD depression have not yet been identified and may even represent potential therapeutic targets. Methods We performed structural and diffusion weighted imaging on 76 participants with PD to evaluate the relationship between PD depression and grey and white matter thalamic subnuclear changes. We used a thalamic segmentation method to divide the thalamus into its 50 constituent subnuclei (25 each hemisphere). We used fixel based analysis of diffusion weighted imaging data to calculate mean fibre cross section (FC) for white matter tracts connected to each subnucleus and assessed volume and FC at baseline and 14-20 months follow-up. A generalised linear mixed model was used to evaluate the relationship between depression, subnuclei volume and mean FC for each of the 50 thalamic subnuclei, adjusting for age, gender, intracranial volume and time. Results We found that depression scores in PD were associated with lower right pulvinar anterior (PuA) subnucleus volume. Antidepressant use was associated with higher right PuA volume suggesting a possible protective effect of treatment. After follow-up, depression scores were associated with decreases in white matter tract macrostructure across almost all tracts connected to thalamic subnuclei. Conclusion We demonstrate that depression is associated with right thalamic PuA subnucleus volume loss and widespread thalamic white matter macrostructural changes, but that antidepressants may protect against volume loss in PD depression. Our work provides mechanistic insights for depression in PD, suggests possible benefits of actively treating depression, and a potential target for therapeutic intervention to the PuA subnucleus for PD depression.

Coexistent Osteoarthritis and Parkinson’s Disease: Data from the Parkinson’s Foundation Outcomes Project

2020 ◽  
Vol 10 (4) ◽  
pp. 1601-1610
Author(s):  
Jaimie A. Roper ◽  
Abigail C. Schmitt ◽  
Hanzhi Gao ◽  
Ying He ◽  
Samuel Wu ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Study Data ◽  
Functional Mobility ◽  
Quality Improvement Initiative ◽  
Timed Up And Go ◽  
Mobility Performance ◽  
Risk Of Mortality ◽  
The Impact

Background: The impact of concurrent osteoarthritis on mobility and mortality in individuals with Parkinson’s disease is unknown. Objective: We sought to understand to what extent osteoarthritis severity influenced mobility across time and how osteoarthritis severity could affect mortality in individuals with Parkinson’s disease. Methods: In a retrospective observational longitudinal study, data from the Parkinson’s Foundation Quality Improvement Initiative was analyzed. We included 2,274 persons with Parkinson’s disease. The main outcomes were the effects of osteoarthritis severity on functional mobility and mortality. The Timed Up and Go test measured functional mobility performance. Mortality was measured as the osteoarthritis group effect on survival time in years. Results: More individuals with symptomatic osteoarthritis reported at least monthly falls compared to the other groups (14.5% vs. 7.2% without reported osteoarthritis and 8.4% asymptomatic/minimal osteoarthritis, p = 0.0004). The symptomatic group contained significantly more individuals with low functional mobility (TUG≥12 seconds) at baseline (51.5% vs. 29.0% and 36.1%, p < 0.0001). The odds of having low functional mobility for individuals with symptomatic osteoarthritis was 1.63 times compared to those without reported osteoarthritis (p < 0.0004); and was 1.57 times compared to those with asymptomatic/minimal osteoarthritis (p = 0.0026) after controlling pre-specified covariates. Similar results hold at the time of follow-up while changes in functional mobility were not significant across groups, suggesting that osteoarthritis likely does not accelerate the changes in functional mobility across time. Coexisting symptomatic osteoarthritis and Parkinson’s disease seem to additively increase the risk of mortality (p = 0.007). Conclusion: Our results highlight the impact and potential additive effects of symptomatic osteoarthritis in persons with Parkinson’s disease.

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