Evidence map›Paper›PMID 27250967›Full record

ArticleMetabolic brain disease2016

The positive association between elevated blood lead levels and brain-specific autoantibodies in autistic children from low lead-polluted areas.

Gehan Ahmed Mostafa, Geir Bjørklund, Mauricio A Urbina, Laila Yousef Al-Ayadhi

Abstract read
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In one paragraph

Article in Metabolic brain disease, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 11% 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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Article
  6. Review
  7. Consequences of Disturbing Manganese Homeostasis.International journal of molecular sciences · 2023
    Review
  8. Article
  9. Article
  10. Article
  11. Autism-like symptoms by exposure to air pollution and valproic acid-induced in male rats.Environmental science and pollution research international · 2022
    Article
  12. Article
  13. Review
  14. Oxidative Stress in Autism Spectrum Disorder.Molecular neurobiology · 2020
    Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Observational
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

4 authors at 4 institutions in 5 countries.

Gehan Ahmed MostafaDepartment of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt. gehan.mostafa2000@yahoo.com.
Geir BjørklundCouncil for Nutritional and Environmental Medicine, Mo i Rana, Norway.
Mauricio A UrbinaDepartamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla 160-C, Concepción, Chile.
Laila Yousef Al-AyadhiDepartment of Physiology, Autism Research and Treatment Center, AL-Amodi Autism Research Chair, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia.
Ain Shams University · EGAutism Research Institute · USThe Research Council of Norway · NOUniversity of Concepción · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The underlying pathogenic mechanism in autoimmune disorders is the formation of autoantibodies. In children with autism spectrum disorder (ASD), it has been documented increased levels of brain-specific autoantibodies. Furthermore, lead (Pb) has been identified as one of the main neurotoxicants acting as environmental triggers for ASD as it induces neuroinflammation and autoimmunity. The present study is the first to explore a potential relationship between the levels of blood lead (BPb) and seropositivity of anti-ribosomal P protein antibodies in ASD children. Levels of BPb and serum anti-ribosomal P protein antibodies were measured in 60 children with ASD and 60 healthy control matched children, aged between 5 and 12 years, recruited from low Pb-polluted areas. The levels of BPb were significantly higher in ASD children than in healthy control children (P < 0.001). Patients with ASD had significantly higher frequency of increased BPb levels ≥10 μg/dL (43.3 %) than healthy control children (13.3 %; P < 0.001). There were significant and positive correlations between the levels of BPb, and the values of Childhood Autism Rating Scale (CARS) (P < 0.01) and IQ in children with ASD (P < 0.001). Patients with ASD showing increased levels of BPb had significantly higher frequency of seropositivity of anti-ribosomal P antibodies (92.3 %) than patients with normal BPb levels (32.3 %; P < 0.001). The findings of the present study suggest that increased levels of BPb in some children with ASD may trigger the production of serum anti-ribosomal P antibodies. Further research is warranted to determine if the production of brain autoantibodies is triggered by environmental Pb exposure in children with ASD. The possible therapeutic role of Pb chelators in ASD children should also be studied.

Indexed as

Autism Spectrum DisorderAutoantibodiesAutoimmunityBrainChildChild, PreschoolCross-Sectional StudiesFemaleFollow-Up StudiesHumansLeadMaleAutoantibodiesLeadAnti-ribosomal P protein antibodiesAutismAutoimmunityBlood leadCognitive function

Identifiers

PMID27250967
OpenAlexW2412592651

What OpenQuestion holds

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Registered trials

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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.