Evidence map›Paper›PMID 24349504›Full record

Trial reportPloS one2013

Dietary BMAA exposure in an amyotrophic lateral sclerosis cluster from southern France.

Estelle Masseret, Sandra Banack, Farid Boumédiène, Eric Abadie, Luc Brient, Fabrice Pernet, Raoul Juntas-Morales, Nicolas Pageot, James Metcalf, Paul Cox and 2 more

Abstract readClinical Trial
In one paragraph

Trial report in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

59 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Plants (Basel, Switzerland) · 2024
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Amyotrophic Lateral Sclerosis: A Diet Review.Foods (Basel, Switzerland) · 2021
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

12 authors.

Estelle MasseretEcologie des Systèmes Marins Côtiers, Unité Mixte de Recherche 5119, Institut de Recherche pour le Développement, Ifremer, Université Montpellier 2, Montpellier, France.
Sandra BanackInstitute for Ethnomedicine, Jackson, Wyoming, United States of America.
Farid BoumédièneNet, Unité Mixte de Recherche 1094, Université de Limoges, Limoges, France.
Eric AbadieLaboratoire Environnement Ressources/Languedoc Roussillon, Ifremer, Sète, France.
Luc BrientUnité Mixte de Recherche 6553, Eco-bio, Université de Rennes I, Rennes, France.
Fabrice PernetIfremer-Laboratoire Environnement Ressource Languedoc-Roussillon, Sète, France.
Raoul Juntas-MoralesAmyotrophic Lateral Sclerosis Center, Centre Hospitalier Universitaire Gui de Chauliac and Institut National de la Santé et de la Recherche Médicale U1051, Montpellier University 1, Montpellier, France.
Nicolas PageotAmyotrophic Lateral Sclerosis Center, Centre Hospitalier Universitaire Gui de Chauliac and Institut National de la Santé et de la Recherche Médicale U1051, Montpellier University 1, Montpellier, France.
James MetcalfInstitute for Ethnomedicine, Jackson, Wyoming, United States of America.
Paul CoxInstitute for Ethnomedicine, Jackson, Wyoming, United States of America.
William CamuAmyotrophic Lateral Sclerosis Center, Centre Hospitalier Universitaire Gui de Chauliac and Institut National de la Santé et de la Recherche Médicale U1051, Montpellier University 1, Montpellier, France.
French Network on ALS Clusters Detection and Investigation

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDietary exposure to the cyanotoxin BMAA is suspected to be the cause of amyotrophic lateral sclerosis in the Western Pacific Islands. In Europe and North America, this toxin has been identified in the marine environment of amyotrophic lateral sclerosis clusters but, to date, only few dietary exposures have been described.

objectivesWe aimed at identifying cluster(s) of amyotrophic lateral sclerosis in the Hérault district, a coastal district from Southern France, and to search, in the identified area(s), for the existence of a potential dietary source of BMAA.

methodsA spatio-temporal cluster analysis was performed in the district, considering all incident amyotrophic lateral sclerosis cases identified from 1994 to 2009 by our expert center. We investigated the cluster area with serial collections of oysters and mussels that were subsequently analyzed blind for BMAA concentrations.

resultsWe found one significant amyotrophic lateral sclerosis cluster (p = 0.0024), surrounding the Thau lagoon, the most important area of shellfish production and consumption along the French Mediterranean coast. BMAA was identified in mussels (1.8 µg/g to 6.0 µg/g) and oysters (0.6 µg/g to 1.6 µg/g). The highest concentrations of BMAA were measured during summer when the highest picocyanobacteria abundances were recorded.

conclusionsWhile it is not possible to ascertain a direct link between shellfish consumption and the existence of this ALS cluster, these results add new data to the potential association of BMAA with sporadic amyotrophic lateral sclerosis, one of the most severe neurodegenerative disorder.

Indexed as

Amyotrophic Lateral SclerosisBivalviaCyanobacteriaFood ContaminationAnimalsBacterial ToxinsFemaleFranceHumansMaleRetrospective StudiesShellfishBacterial Toxins

Identifiers

PMID24349504
PMCPMC3862759

What OpenQuestion holds

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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.