Evidence map›Paper›PMID 33205381›Full record

ReviewNeurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics2020

Approach to Cognitive Impairment in Parkinson's Disease.

Qiang Zhang, Georgina M Aldridge, Nandakumar S Narayanan, Steven W Anderson, Ergun Y Uc

2 registry-linked trialsAbstract readReview
In one paragraph

Review in Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT06984757 naenrolling by invitationnot on this map

Mid-frontal Delta/Theta and Cognitive Control

TypeinterventionalSponsorNandakumar NarayananRan2017 to 2029Enrolled635ConditionsParkinson&Amp, Amp, #39, s Disease (PD)ArmsDeep-brain Stimulation, Transcranial Magnetic Stimulation, Transcranial Alternating Current Stimulation
NCT07554833 narecruitingnot on this mapstarted 2026, after this paper: background citation

Clinical Effects of Accelerated rTMS Targeting Motor Cortex on Motor and Cognitive Function in Parkinson's Disease: A Prospective Pilot Study

TypeinterventionalSponsorSan Francisco Neurology and Sleep CenterRan2026 to 2027Enrolled40ConditionsPARKINSON DISEASE (Disorder), Parkinson s DiseaseArmsTMS
3 · Its place in the literature

Who cites it

41 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. A study of the correlation between cognitive function and thyroid hormones in patients with Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Qiang Zhang *Department of Neurology, Carver College of Medicine, University of Iowa, 200 Hawkins Drive-2RCP, Iowa City, Iowa, 52242, USA.
Georgina M Aldridge *Department of Neurology, Carver College of Medicine, University of Iowa, 200 Hawkins Drive-2RCP, Iowa City, Iowa, 52242, USA.
Nandakumar S NarayananDepartment of Neurology, Carver College of Medicine, University of Iowa, 200 Hawkins Drive-2RCP, Iowa City, Iowa, 52242, USA.
Steven W AndersonDepartment of Neurology, Carver College of Medicine, University of Iowa, 200 Hawkins Drive-2RCP, Iowa City, Iowa, 52242, USA.
Ergun Y UcDepartment of Neurology, Carver College of Medicine, University of Iowa, 200 Hawkins Drive-2RCP, Iowa City, Iowa, 52242, USA. ergun-uc@uiowa.edu.ORCID http://orcid.org/0000-0003-4430-6960

Funding

Mid-frontal delta/theta rhythms and cognitive control in PDR01NS100849 · NINDS · UNIVERSITY OF IOWA · PI JAMES F CAVANAGH, Nandakumar Narayanan · 2017 to 2026
$3.6M
Cortical Mechanisms in Lewy Body DementiaK08NS109287 · NINDS · UNIVERSITY OF IOWA · PI ALDRIDGE, GEORGINA · 2018 to 2022
$938k
NINDS NIH HHS K08 NS109287NINDS NIH HHS R01 NS100849RRD VA I01 RX002987
6 · The paper itself

Abstract

Cognitive dysfunction is common in Parkinson's disease (PD) and predicts poor clinical outcomes. It is associated primarily with pathologic involvement of basal forebrain cholinergic and prefrontal dopaminergic systems. Impairments in executive functions, attention, and visuospatial abilities are its hallmark features with eventual involvement of memory and other domains. Subtle symptoms in the premotor and early phases of PD progress to mild cognitive impairment (MCI) which may be present at the time of diagnosis. Eventually, a large majority of PD patients develop dementia with advancing age and longer disease duration, which is usually accompanied by immobility, hallucinations/psychosis, and dysautonomia. Dopaminergic medications and deep brain stimulation help motor dysfunction, but may have potential cognitive side effects. Central acetylcholinesterase inhibitors, and possibly memantine, provide modest and temporary symptomatic relief for dementia, although there is no evidence-based treatment for MCI. There is no proven disease-modifying treatment for cognitive impairment in PD. The symptomatic and disease-modifying role of physical exercise, cognitive training, and neuromodulation on cognitive impairment in PD is under investigation. Multidisciplinary approaches to cognitive impairment with effective treatment of comorbidities, proper rehabilitation, and maintenance of good support systems in addition to pharmaceutical treatment may improve the quality of life of the patients and caregivers.

Indexed as

ArousalCholinesterase InhibitorsCognitive DysfunctionDonepezilExecutive FunctionHumansMemory, EpisodicParkinson DiseaseQuality of LifeRandomized Controlled Trials as TopicRivastigmineTranscutaneous Electric Nerve StimulationCholinesterase InhibitorsDonepezilRivastigminecholinesterase inhibitorsdeep brain stimulationdementiamild cognitive impairmentneuromodulationneuropsychologyneurorehabilitation.Parkinson’s disease

Identifiers

PMID33205381
PMCPMC7851260

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.