Evidence map›Paper›PMID 26387576›Full record

ArticleCNS neuroscience & therapeutics2015

Different patterns of spontaneous brain activity between tremor-dominant and postural instability/gait difficulty subtypes of Parkinson's disease: a resting-state fMRI study.

Hui-Min Chen, Zhi-Jiang Wang, Jin-Ping Fang, Li-Yan Gao, Ling-Yan Ma, Tao Wu, Ya-Nan Hou, Jia-Rong Zhang, Tao Feng

Open access · bronzeAbstract readComparative StudyValidation Study
In one paragraph

Article in CNS neuroscience & therapeutics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 5 pooled it
4.0field-weighted citation impact, top 6% of its field
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

39 citing papers in PubMed, 5 syntheses or guidelines pooled it, 63 citations in OpenAlex.

  1. Pooled it
  2. Functional brain changes in Parkinson's disease: a whole brain ALE study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Pooled it
  3. Pooled it
  4. Resting-state functional reorganization in Parkinson's disease: An activation likelihood estimation meta-analysis.Cortex; a journal devoted to the study of the nervous system and behavior · 2017
    Pooled it
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  18. The Role of the Cerebellum in Tremor - Evidence from Neuroimaging.Tremor and other hyperkinetic movements (New York, N.Y.) · 2021
    Review
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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

9 authors at 2 institutions in 1 country.

Hui-Min ChenCenter for Neurodegenerative Disease, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Zhi-Jiang WangState Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China.
Jin-Ping FangCenter for Neurodegenerative Disease, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Li-Yan GaoCenter for Neurodegenerative Disease, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Ling-Yan MaCenter for Neurodegenerative Disease, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Tao WuParkinson's Disease Center, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China.
Ya-Nan HouParkinson's Disease Center, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China.
Jia-Rong ZhangParkinson's Disease Center, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China.
Tao FengCenter for Neurodegenerative Disease, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Capital Medical University · CNBeijing Normal University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsPostural instability/gait difficulty (PIGD) and tremor-dominant (TD) subtypes of Parkinson's disease (PD) show different clinical manifestations; however, their underlying neural substrates remain incompletely understood. This study aimed at investigating the subtype-specific patterns of spontaneous brain activity in PD.

methodsThirty-one patients with PD (12 TD/19 PIGD) and 22 healthy gender- and age-matched controls were recruited. Resting-state functional magnetic resonance imaging data were collected, and amplitude of low-frequency fluctuations (ALFF) was measured. Voxelwise one-way analysis of covariance and post hoc analyses of ALFF were performed among the three groups, with age and gender as covariates (levodopa daily dosage and gray matter volume as additional covariates for validation analysis). Correlations of clinical variables (e.g., disease duration and PIGD/tremor subscale score) with ALFF values were examined.

resultsCompared with controls, patients with TD exhibited higher ALFF in the right cerebellar posterior lobe and patients with PIGD exhibited lower ALFF in the bilateral putamen and cerebellar posterior lobe, and higher values primarily in several cortical areas including the inferior and superior temporal gyrus, superior frontal, and parietal gyrus. Compared with patients with PIGD, patients with TD had higher ALFF in the bilateral putamen and the cerebellar posterior lobe, as well as lower ALFF in the bilateral temporal gyrus and the left superior parietal lobule. In all patients, ALFF in the bilateral cerebellar posterior lobe positively correlated with tremor score and ALFF in the bilateral putamen negatively correlated with PIGD score.

conclusionDifferent patterns of spontaneous neural activity in the cerebellum and putamen may underlie the neural substrate of PD motor subtypes.

Indexed as

AdultAgedAntiparkinson AgentsBrainBrain MappingFemaleGait Disorders, NeurologicGray MatterHumansLevodopaMagnetic Resonance ImagingMaleMiddle AgedNeural PathwaysOrgan SizeParkinson DiseaseAntiparkinson AgentsLevodopaAmplitude of low-frequency fluctuations (ALFF)Parkinson's diseasePostural instability/gait difficulty (PIGD)Resting-state fMRITremor

Identifiers

PMID26387576
PMCPMC6493074
OpenAlexW2104650622

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.