Evidence map›Paper›PMID 31090134›Full record

ArticleHuman brain mapping2019

Frontal atrophy as a marker for dementia conversion in Parkinson's disease with mild cognitive impairment.

Seok Jong Chung, Han Soo Yoo, Yang Hyun Lee, Hye Sun Lee, Byoung Seok Ye, Young H Sohn, Hunki Kwon, Phil Hyu Lee

Abstract read
In one paragraph

Article in Human brain mapping, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

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

  1. Pooled it
  2. Influence of the level of education on cognitive function in Parkinson's disease.Journal of neural transmission (Vienna, Austria : 1996) · 2026
    Article
  3. Visuospatial dysfunction indicates an increased risk of rapid dementia conversion in Parkinson's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  4. Cognitive profiles at presentation and subsequent cognitive decline and quality of life in Parkinson's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  5. The role ofFrontiers in neuroscience · 2025
    Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Morphological basis of Parkinson disease-associated cognitive impairment: an update.Journal of neural transmission (Vienna, Austria : 1996) · 2022
    Review
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

8 authors.

Seok Jong ChungDepartment of Neurology, Yonsei University College of Medicine, Seoul, South Korea.ORCID 0000-0001-6086-3199
Han Soo YooDepartment of Neurology, Yonsei University College of Medicine, Seoul, South Korea.ORCID 0000-0001-7846-6271
Yang Hyun LeeDepartment of Neurology, Yonsei University College of Medicine, Seoul, South Korea.
Hye Sun LeeDepartment of Biostatistics, Yonsei University College of Medicine, Seoul, South Korea.
Byoung Seok YeDepartment of Neurology, Yonsei University College of Medicine, Seoul, South Korea.
Young H SohnDepartment of Neurology, Yonsei University College of Medicine, Seoul, South Korea.
Hunki KwonDepartment of Neurology, Yale University School of Medicine, New Haven, Connecticut.
Phil Hyu LeeDepartment of Neurology, Yonsei University College of Medicine, Seoul, South Korea.

Funding

Korean Healthy Industry Development Institute (KHIDI) HI16C1118National Research Foundation of Korea (NRF) NRF-2018R1D1A1B07048959
6 · The paper itself

Abstract

This study aimed to investigate the cortical neural correlates of dementia conversion in Parkinson's disease with mild cognitive impairment (PD-MCI). We classified 112 patients with drug-naïve early stage PD meeting criteria for PD-MCI into either PD with dementia (PDD) converters (n = 34) or nonconverters (n = 78), depending on whether they developed dementia within 4 years of PD diagnosis. Cortical thickness analyses were performed in 34 PDD converters and 34 matched nonconverters. Additionally, a linear discriminant analysis was performed to distinguish PDD converters from nonconverters using cortical thickness of the regions that differed between the two groups. The PDD converters had higher frequencies of multiple domain MCI and amnestic MCI with storage failure, and poorer cognitive performances on frontal/executive, memory, and language function domains than did the nonconverters. Cortical thinning extending from the posterior cortical area into the frontal region was observed in PDD converters relative to nonconverters. The discriminant analysis showed that the prediction model with two cortical thickness variables in the right medial superior frontal and left olfactory cortices optimally distinguished PDD converters from nonconverters. Our data suggest that cortical thinning in the frontal areas including the olfactory cortex is a marker for early dementia conversion in PD-MCI.

Indexed as

Disease ProgressionAgedAtrophyCerebral CortexCognitive DysfunctionDementiaFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedParkinson DiseasePrefrontal CortexRetrospective Studiesconverterfrontostriatalmild cognitive impairment (MCI)Parkinson's disease dementiaposterior cortical

Identifiers

PMID31090134
PMCPMC6865684

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.