Evidence map›Paper›PMID 22606360›Full record

ArticlePloS one2012

Urate and its transgenic depletion modulate neuronal vulnerability in a cellular model of Parkinson's disease.

Sara Cipriani, Cody A Desjardins, Thomas C Burdett, Yuehang Xu, Kui Xu, Michael A Schwarzschild

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 pooled it
3.9field-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

32 citing papers in PubMed, 2 syntheses or guidelines pooled it, 62 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Plasma urate concentrations and possible REM sleep behavior disorder.Annals of clinical and translational neurology · 2019
    Trial
  4. Serum urate at trial entry and ALS progression in EMPOWER.Amyotrophic lateral sclerosis & frontotemporal degeneration · 2017
    Trial
  5. Trial
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. The Role of Oxidative Stress in Parkinson's Disease.Antioxidants (Basel, Switzerland) · 2020
    Review
  16. Pilot trial of inosine to elevate urate levels in amyotrophic lateral sclerosis.Annals of clinical and translational neurology · 2018
    Article
  17. Article
  18. Observational
  19. Article
  20. Recent Advances in Biomarkers for Parkinson's Disease.Frontiers in aging neuroscience · 2018
    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

6 authors at 2 institutions in 1 country.

Sara CiprianiNeurology Department, MassGeneral Institute for Neurodegenerative Disease, Massachusetts General Hospital, Boston, Massachusetts, United States of America. scipriani@partners.org
Cody A Desjardins
Thomas C Burdett
Yuehang Xu
Kui Xu
Michael A Schwarzschild
MaineGeneral Medical Center · USMassachusetts General Hospital · US

Funding

Pursuing purinergic pathways to clinical trials for Parkinson's diseaseK24NS060991 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI SCHWARZSCHILD, MICHAEL A · 2008 to 2012
$954k
Uric Acid:novel therapeutic target for Parkinson's DiseaseR21NS058324 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI SCHWARZSCHILD, MICHAEL A · 2009 to 2010
$460k
NINDS NIH HHS K24 NS060991NINDS NIH HHS K24NS060991NINDS NIH HHS R21 NS058324NINDS NIH HHS R21NS058324
6 · The paper itself

Abstract

Urate is a major antioxidant as well as the enzymatic end product of purine metabolism in humans. Higher levels correlate with a reduced risk of developing Parkinson's disease (PD) and with a slower rate of PD progression. In this study we investigated the effects of modulating intracellular urate concentration on 1-methyl-4-phenyl-pyridinium (MPP(+))-induced degeneration of dopaminergic neurons in cultures of mouse ventral mesencephalon prepared to contain low (neuron-enriched cultures) or high (neuron-glial cultures) percentage of astrocytes. Urate, added to the cultures 24 hours before and during treatment with MPP(+), attenuated the loss of dopaminergic neurons in neuron-enriched cultures and fully prevented their loss and atrophy in neuron-astrocyte cultures. Exogenous urate was found to increase intracellular urate content in cortical neuronal cultures. To assess the effect of reducing cellular urate content on MPP(+)-induced toxicity, mesencephalic neurons were prepared from mice over-expressing urate oxidase (UOx). Transgenic UOx expression decreased endogenous urate content both in neurons and astrocytes. Dopaminergic neurons expressing UOx were more susceptible to MPP(+) in mesencephalic neuron-enriched cultures and to a greater extent in mesencephalic neuron-astrocyte cultures. Our findings correlate intracellular urate content in dopaminergic neurons with their toxin resistance in a cellular model of PD and suggest a facilitative role for astrocytes in the neuroprotective effect of urate.

Indexed as

1-Methyl-4-phenylpyridiniumAnimalsAstrocytesDopaminergic NeuronsMesencephalonMiceMice, Inbred C57BLMice, TransgenicNerve DegenerationParkinsonian DisordersRecombinant ProteinsTissue Culture TechniquesUrate OxidaseUric Acid1-Methyl-4-phenylpyridiniumRecombinant ProteinsUrate OxidaseUric Acid

Identifiers

PMID22606360
PMCPMC3351394
OpenAlexW2042748383

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.