Evidence map›Paper›PMID 31245375›Full record

ArticleFrontiers in medicine2019

Magnetic Nanoparticles in Human Cervical Skin.

Kari Murros, Joonas Wasiljeff, Elena Macías-Sánchez, Damien Faivre, Lauri Soinne, Jussi Valtonen, Marjatta Pohja, Pekka Saari, Lauri J Pesonen, Johanna M Salminen

Open access · goldAbstract read
In one paragraph

Article in Frontiers in medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Microorganisms · 2023
    Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Frontiers in cellular and infection microbiology · 2021
    Article
  10. Biogenic Metal Oxides.Biomimetics (Basel, Switzerland) · 2020
    Review
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 4 institutions in 3 countries.

Kari MurrosDepartment of Neurology, Helsinki University Hospital, Helsinki, Finland.
Joonas WasiljeffDepartment of Geosciences and Geography, University of Helsinki, Helsinki, Finland.
Elena Macías-SánchezDepartment of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam, Germany.
Damien FaivreDepartment of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam, Germany.
Lauri SoinneDepartment of Neurology, Helsinki University Hospital, Helsinki, Finland.
Jussi ValtonenDepartment of Plastic Surgery, Helsinki University Hospital, Helsinki, Finland.
Marjatta PohjaDepartment of Neurology, Helsinki University Hospital, Helsinki, Finland.
Pekka SaariDepartment of Physics, University of Helsinki, Helsinki, Finland.
Lauri J PesonenDepartment of Physics, University of Helsinki, Helsinki, Finland.
Johanna M SalminenDepartment of Geosciences and Geography, University of Helsinki, Helsinki, Finland.
Helsinki University Hospital · FIUniversity of Helsinki · FIInstitut de Biosciences et Biotechnologies · FRMax Planck Institute of Colloids and Interfaces · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Magnetic iron oxide nanoparticles, magnetite/maghemite, have been identified in human tissues, including the brain, meninges, heart, liver, and spleen. As these nanoparticles may play a role in the pathogenesis of neurodegenerative diseases, a pilot study explored the occurrence of these particles in the cervical (neck) skin of 10 patients with Parkinson's disease and 10 healthy controls. Magnetometry and transmission electron microscopy analyses revealed magnetite/maghemite nanoparticles in the skin samples of every study participant. Regarding magnetite/maghemite concentrations of the single-domain particles, no significant between-group difference was emerged. In low-temperature magnetic measurement, a magnetic anomaly at ~50 K was evident mainly in the dermal samples of the Parkinson group. This anomaly was larger than the effect related to the magnetic ordering of molecular oxygen. The temperature range of the anomaly, and the size-range of magnetite/maghemite, both refute the idea of magnetic ordering of any iron phase other than magnetite. We propose that the explanation for the finding is interaction between clusters of superparamagnetic and single-domain-sized nanoparticles. The source and significance of these particles remains speculative.

Indexed as

guthuman tissuemagnetitenanoparticlesParkinson's diseaseskinsuperparamagnetic

Identifiers

PMID31245375
PMCPMC6563768
OpenAlexW2946199396

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.