Evidence map›Paper›PMID 32050998›Full record

Observational studyItalian journal of pediatrics2020

Neurotoxicity by mercury is not associated with autism spectrum disorders in Spanish children.

Fernando Gil-Hernández, Antonio R Gómez-Fernández, María Josede la Torre-Aguilar, Juan L Pérez-Navero, Katherine Flores-Rojas, Pilar Martín-Borreguero, Mercedes Gil-Campos

Open access · goldAbstract readComparative StudyObservational Study
In one paragraph

Observational study in Italian journal of pediatrics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

17 citing papers in PubMed, 26 citations in OpenAlex.

  1. Review
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  11. Evaluation of the oxidative stress alleviation inFrontiers in microbiology · 2022
    Article
  12. Observational
  13. Selection of Mercury-Resistant PGPR Strains Using the BMRSI for Bioremediation Purposes.International journal of environmental research and public health · 2021
    Article
  14. Mercury and Antibiotic Resistance Co-Selection inInternational journal of environmental research and public health · 2021
    Article
  15. Article
  16. Article
  17. 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

7 authors at 3 institutions in 1 country.

Fernando Gil-HernándezDepartment of Legal Medicine and Toxicology, School of Medicine, Granada University, Granada, Spain.
Antonio R Gómez-FernándezDepartment of Pediatrics, Reina Sofía University Hospital, University of Córdoba, Instituto Maimónides de Investigación Biomédica (IMIBIC), Córdoba, Spain.
María Josede la Torre-AguilarDepartment of Pediatrics, Reina Sofía University Hospital, University of Córdoba, Instituto Maimónides de Investigación Biomédica (IMIBIC), Córdoba, Spain.
Juan L Pérez-NaveroDepartment of Pediatrics, Reina Sofía University Hospital, University of Córdoba, Instituto Maimónides de Investigación Biomédica (IMIBIC), Córdoba, Spain. juanpereznavero@hotmail.com.ORCID http://orcid.org/0000-0002-2026-5909
Katherine Flores-RojasPediatric Metabolism Unit, Reina Sofía University Hospital, Instituto Maimónides Investigación Biomédica(IMIBIC), Córdoba University, CIBEROBN, Madrid, Spain.
Pilar Martín-BorregueroUnit of Psychology and Pediatric Psychiatry, Reina Sofía University Hospital, Córdoba, Spain.
Mercedes Gil-CamposPediatric Metabolism Unit, Reina Sofía University Hospital, Instituto Maimónides Investigación Biomédica(IMIBIC), Córdoba University, CIBEROBN, Madrid, Spain.
Instituto Maimónides de Investigación Biomédica de Córdoba · ESHospital Universitario Reina Sofía · ESUniversidad de Granada · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe pathophysiological etiologies related with the development of Autism Spectrum Disorders (ASD) remain controversial. Different authors have studied neurotoxins such as mercury (Hg) and their relationship with ADS. The objective of this study was to assess the levels of Hg in hair in a group of ASD children (chronic exposure) and in urinary excretion (acute exposure), in comparison to a healthy group.

methodsA case-control study was conducted in Spanish children. We compared 54 ASD children (aged 2-6) with no other associated pathology to a normally-developing control group (54 subjects).

resultsThere were no differences in urine (p:0.631) and hair (p:1.000) samples percentages below the limits of detection between the control and the ASD groups, and also between patients in the regression ASD subgroup (AMR) (p:0.08) and the non-regression ASD subgroup (ANMR) (p:0.705). When the analysis was adjusted for age and sex, the differences between Hg levels maintained not significant. There were no correlations between Hg concentrations in the ASD group as a whole (p: 0.739), or when they were subdivided into ASD-AMR (p: 0.739) and ASD-ANMR (p: 0.363).

conclusionsThe present study shows no evidence in our geographical area to support an association between mercury neurotoxicity and the etiopathogenesis of ASD.

Indexed as

Autism Spectrum DisorderBiomarkersCase-Control StudiesChildChild, PreschoolEnvironmental ExposureFemaleHumansIncidenceMaleMercurySpainBiomarkersMercuryAutism spectrum disorderChildrenHairMercuryNeurotoxicityUrine

Identifiers

PMID32050998
PMCPMC7017444
OpenAlexW3008224944

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.