Evidence map›Paper›PMID 29081415›Full record

ArticleJournal of Alzheimer's disease : JAD2017

Cortical Iron Reflects Severity of Alzheimer's Disease.

Sara van Duijn, Marjolein Bulk, Sjoerd G van Duinen, Rob J A Nabuurs, Mark A van Buchem, Louise van der Weerd, Remco Natté

Open access · bronzeAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed, 1 pooled it
7.9field-weighted citation impact, top 2% 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

97 citing papers in PubMed, 1 synthesis or guideline pooled it, 163 citations in OpenAlex.

  1. Pooled it
  2. Diabetes-Associated Cognitive Impairment: Pathophysiology and Emerging Therapies.Annals of clinical and translational neurology · 2026
    Review
  3. Diffusion MRI reveals amyloid plaque-associated cellular signatures through spatial transcriptomic integration.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Vessel segmentation forMagnetic resonance in medicine · 2026
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. A hypothesis explaining Alzheimer's disease, Parkinson's disease, and dementia with Lewy bodies overlap.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Microglia programmed cell death in neurodegenerative diseases and CNS injury.Apoptosis : an international journal on programmed cell death · 2025
    Review
  20. Review

37 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Sara van DuijnDepartment of Pathology, Leiden University Medical Centre, Leiden, The Netherlands.
Marjolein BulkDepartment of Radiology, Leiden University Medical Centre, Leiden, The Netherlands.
Sjoerd G van DuinenDepartment of Pathology, Leiden University Medical Centre, Leiden, The Netherlands.
Rob J A NabuursDepartment of Radiology, Leiden University Medical Centre, Leiden, The Netherlands.
Mark A van BuchemDepartment of Radiology, Leiden University Medical Centre, Leiden, The Netherlands.
Louise van der WeerdDepartment of Radiology, Leiden University Medical Centre, Leiden, The Netherlands.
Remco NattéDepartment of Pathology, Leiden University Medical Centre, Leiden, The Netherlands.
Leiden University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Abnormal iron distribution in the isocortex is increasingly recognized as an in vivo marker for Alzheimer's disease (AD). However, the contribution of iron accumulation to the AD pathology is still poorly understood. In this study, we investigated: 1) frontal cortical iron distribution in AD and normal aging and 2) the relation between iron distribution and degree of AD pathology. We used formalin fixed paraffin embedded frontal cortex from 10 AD patients, 10 elder, 10 middle aged, and 10 young controls and visualized iron with a modified Perl's histochemical procedure. AD and elderly subjects were not different with respect to age and sex distribution. Iron distribution in the frontal cortex was not affected by normal aging but was clearly different between AD and controls. AD showed accumulation of iron in plaques, activated microglia, and, in the most severe cases, in the mid-cortical layers along myelinated fibers. The degree of altered iron accumulations was correlated to the amount of amyloid-β plaques and tau pathology in the same block, as well as to Braak stage (p < 0.001). AD and normal aging show different iron and myelin distribution in frontal cortex. These changes appear to occur after the development of the AD pathological hallmarks. These findings may help the interpretation of high resolution in vivo MRI and suggest the potential of using changes in iron-based MRI contrast to indirectly determine the degree of AD pathology in the frontal cortex.

Indexed as

AdolescentAdultAgedAged, 80 and overAgingAlzheimer DiseaseFemaleFrontal LobeHumansImmunohistochemistryIronMaleMiddle AgedMyelin SheathPlaque, AmyloidSeverity of Illness IndexIronMAPT protein, humantau ProteinsAlzheimer’s diseaseironmagnetic resonance imagingmyelin

Identifiers

PMID29081415
PMCPMC5676973
OpenAlexW2765714249

What OpenQuestion holds

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LicenceCC BY-NC
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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.