Evidence map›Paper›PMID 28874699›Full record

ArticleScientific reports2017

Metal concentrations and distributions in the human olfactory bulb in Parkinson's disease.

Bronwen Gardner, Birger V Dieriks, Steve Cameron, Lakshini H S Mendis, Clinton Turner, Richard L M Faull, Maurice A Curtis

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
2.7field-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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
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  4. ZnJournal of the American Chemical Society · 2025
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  16. ATH434 Rescues Pre-motor Hyposmia in a Mouse Model of Parkinsonism.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Article
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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

7 authors at 2 institutions in 1 country.

Bronwen GardnerCentre for Brain Research and Department of Anatomy with Medical Imaging, University of Auckland, Auckland, New Zealand.
Birger V DieriksCentre for Brain Research and Department of Anatomy with Medical Imaging, University of Auckland, Auckland, New Zealand.ORCID 0000-0002-9392-3327
Steve CameronWaikato Mass Spectrometry Facility, University of Waikato, Hamilton, New Zealand.
Lakshini H S MendisCentre for Brain Research and Department of Anatomy with Medical Imaging, University of Auckland, Auckland, New Zealand.
Clinton TurnerCentre for Brain Research and Department of Anatomy with Medical Imaging, University of Auckland, Auckland, New Zealand.
Richard L M FaullCentre for Brain Research and Department of Anatomy with Medical Imaging, University of Auckland, Auckland, New Zealand.
Maurice A CurtisCentre for Brain Research and Department of Anatomy with Medical Imaging, University of Auckland, Auckland, New Zealand. m.curtis@auckland.ac.nz.
University of Auckland · NZUniversity of Waikato · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In Parkinson's disease (PD), the olfactory bulb is typically the first region in the body to accumulate alpha-synuclein aggregates. This pathology is linked to decreased olfactory ability, which becomes apparent before any motor symptoms occur, and may be due to a local metal imbalance. Metal concentrations were investigated in post-mortem olfactory bulbs and tracts from 17 human subjects. Iron (p < 0.05) and sodium (p < 0.01) concentrations were elevated in the PD olfactory bulb. Combining laser ablation inductively coupled plasma mass spectrometry and immunohistochemistry, iron and copper were evident at very low levels in regions of alpha-synuclein aggregation. Zinc was high in these regions, and free zinc was detected in Lewy bodies, mitochondria, and lipofuscin of cells in the anterior olfactory nucleus. Increased iron and sodium in the human PD olfactory bulb may relate to the loss of olfactory function. In contrast, colocalization of free zinc and alpha-synuclein in the anterior olfactory nucleus implicate zinc in PD pathogenesis.

Indexed as

Biological TransportCopperHumansIronMetalsNeuronsOlfactory BulbParkinson DiseaseSodiumTissue DistributionZincCopperIronMetalsSodiumZinc

Identifiers

PMID28874699
PMCPMC5585381
OpenAlexW2751952032

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.