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Sökning: L773:1531 8257 > (2020-2022)

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  • Ayton, Scott, et al. (författare)
  • The Neuroinflammatory Acute Phase Response in Parkinsonian-Related Disorders
  • 2022
  • Ingår i: Movement Disorders. - : John Wiley & Sons Inc.. - 0885-3185 .- 1531-8257. ; 37:5, s. 993-1003
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Neuroinflammation is implicated in the pathophysiology of Parkinson's disease (PD) and related conditions, yet prior clinical biomarker data report mixed findings. Objectives: The aim was to measure a panel of neuroinflammatory acute phase response (APR) proteins in the cerebrospinal fluid (CSF) of participants with PD and related disorders. Methods: Eleven APR proteins were measured in the CSF of 867 participants from the BioFINDER cohort who were healthy (612) or had a diagnosis of PD (155), multiple system atrophy (MSA) (26), progressive supranuclear palsy (PSP) (22), dementia with Lewy bodies (DLB) (23), or Parkinson’s disease with dementia (PDD) (29). Results: CSF APR proteins were mostly unchanged in PD, with only haptoglobin and α1-antitrypsin significantly elevated compared to controls. These proteins were variably increased in the other disorders. Certain protein components yielded unique signatures according to diagnosis: ferritin and transthyretin were selectively elevated in MSA and discriminated these patients from all others. Haptoglobin was selectively increased in PSP, discriminating this disease from MSA when used in combination with ferritin and transthyretin. This panel of proteins did not correlate well with severity of motor impairment in any disease category, but several (particularly ceruloplasmin and ferritin) were associated with memory performance (Mini-Mental State Examination) in patients with DLB and PDD. Conclusions: These findings provide new insights into inflammatory changes in PD and related disorders while also introducing biomarkers of potential clinical diagnostic utility.
  • Cenci, M. Angela, et al. (författare)
  • Dyskinesia matters
  • 2020
  • Ingår i: Movement Disorders. - : John Wiley & Sons Inc.. - 0885-3185 .- 1531-8257. ; 35:3, s. 392-396
  • Tidskriftsartikel (refereegranskat)abstract
    • Levodopa-induced dyskinesia (LID) represents a significant source of discomfort for people with Parkinson's disease (PD). It negatively affects quality of life, it is associated with both motor and nonmotor fluctuations, and it brings an increased risk of disability, balance problems, and falls. Although the prevalence of severe LID appears to be lower than in previous eras (likely owing to a more conservative use of oral levodopa), we have not yet found a way to prevent the development of this complication. Advanced surgical therapies, such as deep brain stimulation, ameliorate LID, but only a minority of PD patients qualify for these interventions. Although some have argued that PD patients would rather be ON with dyskinesia than OFF, the deeper truth is that patients would very much prefer to be ON without dyskinesia. As researchers and clinicians, we should aspire to make that goal a reality. To this end, translational research on LID is to be encouraged and persistently pursued.
  • Dayal, Viswas, et al. (författare)
  • Short Versus Conventional Pulse-Width Deep Brain Stimulation in Parkinson's Disease : A Randomized Crossover Comparison
  • 2020
  • Ingår i: Movement Disorders. - : John Wiley & Sons. - 0885-3185 .- 1531-8257. ; 35:1, s. 101-108
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Subthalamic nucleus deep brain stimulation (STN-DBS) is an effective therapy for selected Parkinson's disease patients with motor fluctuations, but can adversely affect speech and axial symptoms. The use of short pulse width (PW) has been shown to expand the therapeutic window acutely, but its utility in reducing side effects in chronic STN-DBS patients has not been evaluated. Objective To compare the effect of short PW settings using 30-mu s with conventional 60-mu s settings on stimulation-induced dysarthria in Parkinson's disease patients with previously implanted STN-DBS systems.Methods: In this single-center, double-blind, randomized crossover trial, we assigned 16 Parkinson's disease patients who had been on STN-DBS for a mean of 6.5 years and exhibited moderate dysarthria to 30-mu s or 60-mu s settings for 4 weeks followed by the alternative PW setting for a further 4 weeks. The primary outcome was difference in dysarthric speech measured by the Sentence Intelligibility Test between study baseline and the 2 PW conditions. Secondary outcomes included motor, nonmotor, and quality of life measures.Results: There was no difference in the Sentence Intelligibility Test scores between baseline and the 2 treatment conditions (P = 0.25). There were also no differences noted in motor, nonmotor, or quality of life scores. The 30-mu s settings were well tolerated, and adverse event rates were similar to those at conventional PW settings. Post hoc analysis indicated that patients with dysarthria and a shorter duration of DBS may be improved by short PW stimulation.Conclusions: Short PW settings using 30 mu s did not alter dysarthric speech in chronic STN-DBS patients. A future study should evaluate whether patients with shorter duration of DBS may be helped by short PW settings.
  • Fasano, A., et al. (författare)
  • Gaps, Controversies, and Proposed Roadmap for Research in Normal Pressure Hydrocephalus
  • 2020
  • Ingår i: Movement Disorders. - : Wiley. - 0885-3185 .- 1531-8257. ; 35:11, s. 1945-1954
  • Tidskriftsartikel (refereegranskat)abstract
    • Idiopathic normal pressure hydrocephalus is considered common but remains underinvestigated. There are no uniformly accepted diagnostic criteria and therapeutic guidelines. We summarize the accumulated evidence regarding the definition, pathophysiology, diagnosis, and treatment of idiopathic normal pressure hydrocephalus, highlighting the many gaps and controversies, including diagnostic challenges, the frequent association with neurodegeneration and vascular disease, and the many unknowns regarding patient selection and outcome predictors. A roadmap to fill these gaps and solve the controversies around this condition is also proposed. More evidence is required with respect to diagnostic criteria, the value of ancillary testing, prospective population-based studies and novel trial designs. Furthermore, a need exists to develop new advanced options in shunt technology. (c) 2020 International Parkinson and Movement Disorder Society
  • Fazio, P, et al. (författare)
  • Corrigendum
  • 2020
  • Ingår i: Movement disorders : official journal of the Movement Disorder Society. - : Wiley. - 1531-8257. ; 35:12, s. 2363-2364
  • Tidskriftsartikel (övrigt vetenskapligt)
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