Evidence map›Paper›PMID 33383805›Full record

ReviewBiomolecules2020

Iron Dysregulation and Inflammagens Related to Oral and Gut Health Are Central to the Development of Parkinson's Disease.

Marthinus Janse van Vuuren, Theodore Albertus Nell, Jonathan Ambrose Carr, Douglas B Kell, Etheresia Pretorius

Open access · goldAbstract readReview
In one paragraph

Review in Biomolecules, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 17% 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

15 citing papers in PubMed, 26 citations in OpenAlex.

  1. Review
  2. Gut-Brain Signaling in Parkinson's Disease: A Narrative Review.International journal of molecular sciences · 2026
    Review
  3. Review
  4. Review
  5. The Aging Gut-Brain Axis: Effects of Dietary Polyphenols and Metal Exposure.Chronic diseases and translational medicine · 2025
    Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Revisiting Alpha-Synuclein Pathways to Inflammation.International journal of molecular sciences · 2023
    Review
  11. Bioactive strawberry fruit (Frontiers in neuroscience · 2023
    Article
  12. Review
  13. Article
  14. Review
  15. 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

5 authors at 2 institutions in 3 countries.

Marthinus Janse van VuurenDepartment of Physiological Sciences, Faculty of Science, Stellenbosch University, Private Bag X1 Matieland, Stellenbosch 7602, South Africa.
Theodore Albertus NellDepartment of Physiological Sciences, Faculty of Science, Stellenbosch University, Private Bag X1 Matieland, Stellenbosch 7602, South Africa.ORCID 0000-0003-3905-827X
Jonathan Ambrose CarrDivision of Neurology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Private Bag X1 Matieland, Stellenbosch 7602, South Africa.
Douglas B KellDepartment of Physiological Sciences, Faculty of Science, Stellenbosch University, Private Bag X1 Matieland, Stellenbosch 7602, South Africa.ORCID 0000-0001-5838-7963
Etheresia PretoriusDepartment of Physiological Sciences, Faculty of Science, Stellenbosch University, Private Bag X1 Matieland, Stellenbosch 7602, South Africa.ORCID 0000-0002-9108-2384
Stellenbosch University · ZAUniversity of Liverpool · GB

Funding

Medical Research Council of South Africa (MRC) A0X331The Novo Nordisk Foundation NNF10CC1016517
6 · The paper itself

Abstract

Neuronal lesions in Parkinson's disease (PD) are commonly associated with α-synuclein (α-Syn)-induced cell damage that are present both in the central and peripheral nervous systems of patients, with the enteric nervous system also being especially vulnerable. Here, we bring together evidence that the development and presence of PD depends on specific sets of interlinking factors that include neuroinflammation, systemic inflammation, α-Syn-induced cell damage, vascular dysfunction, iron dysregulation, and gut and periodontal dysbiosis. We argue that there is significant evidence that bacterial inflammagens fuel this systemic inflammation, and might be central to the development of PD. We also discuss the processes whereby bacterial inflammagens may be involved in causing nucleation of proteins, including of α-Syn. Lastly, we review evidence that iron chelation, pre-and probiotics, as well as antibiotics and faecal transplant treatment might be valuable treatments in PD. A most important consideration, however, is that these therapeutic options need to be validated and tested in randomized controlled clinical trials. However, targeting underlying mechanisms of PD, including gut dysbiosis and iron toxicity, have potentially opened up possibilities of a wide variety of novel treatments, which may relieve the characteristic motor and nonmotor deficits of PD, and may even slow the progression and/or accompanying gut-related conditions of the disease.

Indexed as

alpha-SynucleinAnimalsDysbiosisGastrointestinal MicrobiomeHumansInflammationIronMouthOxidative StressParkinson Diseasealpha-SynucleinIronamyloid and α-synucleinbacteriagingipainsironlipopolysaccharidesParkinson’s disease

Identifiers

PMID33383805
PMCPMC7823713
OpenAlexW3114686193

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.