Evidence map›Paper›PMID 23626767›Full record

ArticlePloS one2013

Calcitriol imparts neuroprotection in vitro to midbrain dopaminergic neurons by upregulating GDNF expression.

Rowan P Orme, Manminder S Bhangal, Rosemary A Fricker

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 4% 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

48 citing papers in PubMed, 1 synthesis or guideline pooled it, 91 citations in OpenAlex.

  1. Vitamin D and schizophrenia: 20 years on.Molecular psychiatry · 2021
    Pooled it
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  13. What is known about the effects of vitamin D in neuropsychiatric lupus?Advances in rheumatology (London, England) · 2024
    Review
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  20. Modified Low-Temperature Extraction Method for Isolation ofInternational journal of molecular sciences · 2021
    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

3 authors at 1 institution in 1 country.

Rowan P OrmeInstitute for Science and Technology in Medicine and Department of Life Sciences, Keele University, Keele, Staffordshire, England.
Manminder S Bhangal
Rosemary A Fricker
Keele University · GB

Funding

Parkinson's UK G-0911
6 · The paper itself

Abstract

During development a tightly controlled signaling cascade dictates the differentiation, maturation and survival of developing neurons. Understanding this signaling mechanism is important for developing therapies for neurodegenerative illnesses. In previous work we have sought to understand the complex signaling pathways responsible for the development of midbrain dopamine neurons using a proteomic approach. One protein we have identified as being expressed in developing midbrain tissue is the vitamin D receptor. Therefore we investigated the effect of the biologically active vitamin D3 metabolite, calcitriol, on primary fetal ventral mesencephalic cultures of dopamine neurons. We observed a dose responsive increase in numbers of rat primary dopamine neurons when calcitriol was added to culture media. Western blot data showed that calcitriol upregulated the expression of glial derived neurotrophic factor (GDNF). Blocking GDNF signaling could prevent calcitriol's ability to increase numbers of dopamine neurons. An apoptosis assay and cell birth dating experiment revealed that calcitriol increases the number of dopamine neurons through neuroprotection and not increased differentiation. This could have implications for future neuroprotective PD therapies.

Indexed as

AnimalsApoptosisCalcitriolCell DifferentiationDopaminergic NeuronsGene Expression RegulationGlial Cell Line-Derived Neurotrophic FactorMesencephalonNeuroprotective AgentsPrimary Cell CultureRatsReceptors, CalcitriolSignal TransductionCalcitriolGlial Cell Line-Derived Neurotrophic FactorNeuroprotective AgentsReceptors, Calcitriol

Identifiers

PMID23626767
PMCPMC3633905
OpenAlexW1977275772

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.