Evidence map›Paper›PMID 26791617›Full record

ArticleProceedings. Biological sciences2016

Dietary exposure to an environmental toxin triggers neurofibrillary tangles and amyloid deposits in the brain.

Paul Alan Cox, David A Davis, Deborah C Mash, James S Metcalf, Sandra Anne Banack

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03580616 (Tolerability and Efficacy of L-Serine in Patients With Amyotrophic Lateral Sclerosis), which is not on this map. Cited by 104 papers.

0numbers the graph read from it
0cells of the map it votes in
104citing papers in PubMed
21.4field-weighted citation impact, top 1% 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.

NCT03580616 phase2terminatednot on this mapstarted 2018, after this paper: background citation

Tolerability and Efficacy of L-Serine in Patients With Amyotrophic Lateral Sclerosis: A Phase IIa Study

TypeinterventionalSponsorElijah W. StommelRan2018 to 2022Enrolled43ConditionsAmyotrophic Lateral Sclerosis (ALS)ArmsL-Serine
3 · Its place in the literature

Who cites it

104 citing papers in PubMed, 252 citations in OpenAlex.

  1. Review
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  4. Article
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  6. Article
  7. Plasma and CSF biomarkers of aging and cognitive decline in Caribbean vervets.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
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  14. Therapeutic Candidates for Alzheimer's Disease: Saponins.International journal of molecular sciences · 2023
    Review
  15. Article
  16. Article
  17. Review
  18. Article
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  20. Article

44 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

5 authors at 2 institutions in 1 country.

Paul Alan CoxInstitute for Ethnomedicine, Jackson Hole, WY, USA paul@ethnomedicine.org.
David A DavisDepartment of Neurology, University of Miami, Miller School of Medicine, Miami, FL, USA.
Deborah C MashDepartment of Neurology, University of Miami, Miller School of Medicine, Miami, FL, USA.
James S MetcalfInstitute for Ethnomedicine, Jackson Hole, WY, USA.
Sandra Anne BanackInstitute for Ethnomedicine, Jackson Hole, WY, USA.
Institute for EthnoMedicine · USUniversity of Miami · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neurofibrillary tangles (NFT) and β-amyloid plaques are the neurological hallmarks of both Alzheimer's disease and an unusual paralytic illness suffered by Chamorro villagers on the Pacific island of Guam. Many Chamorros with the disease suffer dementia, and in some villages one-quarter of the adults perished from the disease. Like Alzheimer's, the causal factors of Guamanian amyotrophic lateral sclerosis/parkinsonism dementia complex (ALS/PDC) are poorly understood. In replicated experiments, we found that chronic dietary exposure to a cyanobacterial toxin present in the traditional Chamorro diet, β-N-methylamino-l-alanine (BMAA), triggers the formation of both NFT and β-amyloid deposits similar in structure and density to those found in brain tissues of Chamorros who died with ALS/PDC. Vervets (Chlorocebus sabaeus) fed for 140 days with BMAA-dosed fruit developed NFT and sparse β-amyloid deposits in the brain. Co-administration of the dietary amino acid l-serine with l-BMAA significantly reduced the density of NFT. These findings indicate that while chronic exposure to the environmental toxin BMAA can trigger neurodegeneration in vulnerable individuals, increasing the amount of l-serine in the diet can reduce the risk.

Indexed as

Amino Acids, DiaminoAmyloid beta-PeptidesAmyotrophic Lateral SclerosisAnimalsBrainChlorocebus aethiopsCyanobacteria ToxinsFood ContaminationGuamHumansNeurofibrillary TanglesPlant RootsPopulation GroupsSerineAmino Acids, DiaminoAmyloid beta-Peptidesbeta-N-methylamino-L-alanineCyanobacteria ToxinsSerineAlzheimer'samyotrophic lateral sclerosisBMAAcyanobacterial-serinetau

Identifiers

PMID26791617
PMCPMC4795023
OpenAlexW2292371387

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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.