Evidence map›Paper›PMID 32407590›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2020

Relationship of Cerebrospinal Fluid Vitamin B12 Status Markers With Parkinson's Disease Progression.

Chadwick W Christine, Peggy Auinger, Nasrin Saleh, Miao Tian, Teodoro Bottiglieri, Erland Arning, Nam K Tran, Per Magne Ueland, Ralph Green, Parkinson Study Group-DATATOP Investigators

Open access · hybridAbstract read
In one paragraph

Article in Movement disorders : official journal of the Movement Disorder Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 4 pooled it
2.0field-weighted citation impact, top 11% 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

18 citing papers in PubMed, 4 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Do oral antidiabetic medications alter the risk of Parkinson's disease? An updated systematic review and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023 · on this map
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. 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

10 authors at 8 institutions in 2 countries.

Chadwick W ChristineDepartment of Neurology, UCSF, San Francisco, California, USA.
Peggy AuingerCenter for Health and Technology, University of Rochester, Rochester, New York, USA.
Nasrin SalehDepartment of Pathology and Laboratory Medicine, UC Davis, Sacramento, California, USA.
Miao TianDepartment of Pathology and Laboratory Medicine, UC Davis, Sacramento, California, USA.
Teodoro BottiglieriInstitute of Metabolic Disease, Baylor Scott & White Research Institute, Dallas, Texas, USA.
Erland ArningInstitute of Metabolic Disease, Baylor Scott & White Research Institute, Dallas, Texas, USA.
Nam K TranDepartment of Pathology and Laboratory Medicine, UC Davis, Sacramento, California, USA.
Per Magne UelandBevital, New Lab Building, 9th floor, Bergen, Hordaland, Norway.
Ralph GreenDepartment of Pathology and Laboratory Medicine, UC Davis, Sacramento, California, USA.
Parkinson Study Group-DATATOP Investigators
Baylor Scott & White Health · USBevital (Norway) · NOUC Davis Children's Hospital · USUC Davis Health · USUniversity of California, Davis · USUniversity of California Davis Medical Center · USUniversity of California San Francisco Medical Center · USUniversity of Rochester · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUsing blood specimens from untreated early Parkinson's disease (PD) patients from the DATATOP trial, we found that subjects in the low serum vitamin B12 tertile experienced greater annualized change in ambulatory capacity score, whereas those with moderately elevated (>15 μmol/L) total homocysteine had greater annualized declines in the Mini-Mental State Exam.

methodsIn this this study we sought to determine whether levels of cerebrospinal fluid (CSF) B12 markers were also associated with progression of PD.

resultsThe annualized change in the UPDRS "walking" item, a component of the ambulatory capacity score, was worse in the low B12 tertile. No association with change in the Mini-Mental State Exam was seen for those 7% with the highest baseline CSF total homocysteine.

conclusionsIn these untreated early-PD subjects, low CSF B12 predicted greater worsening of the UPDRS "walking" item, whereas CSF total homocysteine was not associated with progression of cognitive impairment. These findings extend and partially support our findings in serum. © 2020 The Authors. Movement Disorders published by Wiley Periodicals, Inc. on behalf of International Parkinson and Movement Disorder Society.

Indexed as

Parkinson DiseaseBiomarkersDisease ProgressionHumansMental Status and Dementia TestsVitamin B 12BiomarkersVitamin B 12cognitive impairmentCSFcyanocobalamingait instabilityhyperhomocysteinemiavitamin B12

Identifiers

PMID32407590
PMCPMC7496300
OpenAlexW3024330147

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.