Evidence map›Paper›PMID 26218250›Full record

ArticlePloS one2015

Lipopolysaccharide Exposure Induces Maternal Hypozincemia, and Prenatal Zinc Treatment Prevents Autistic-Like Behaviors and Disturbances in the Striatal Dopaminergic and mTOR Systems of Offspring.

Thiago Berti Kirsten, Gabriela P Chaves-Kirsten, Suene Bernardes, Cristoforo Scavone, Jorge E Sarkis, Maria Martha Bernardi, Luciano F Felicio

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

22 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Zinc.Advances in food and nutrition research · 2021
    Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. A neurochemical hypothesis for the origin of hominids.Proceedings of the National Academy of Sciences of the United States of America · 2018
    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

7 authors at 2 institutions in 1 country.

Thiago Berti KirstenDepartment of Pathology, School of Veterinary Medicine, University of Sao Paulo, São Paulo, Brazil; Environmental and Experimental Pathology, Paulista University, Sao Paulo, Brazil.
Gabriela P Chaves-KirstenDepartment of Pharmacology, Institute of Biomedical Science, University of São Paulo, Sao Paulo, Brazil.
Suene BernardesInstitute of Physics, University of São Paulo, Sao Paulo, Brazil.
Cristoforo ScavoneDepartment of Pharmacology, Institute of Biomedical Science, University of São Paulo, Sao Paulo, Brazil.
Jorge E SarkisInstitute for Energy and Nuclear Research/IPEN, University of São Paulo, Sao Paulo, Brazil.
Maria Martha BernardiEnvironmental and Experimental Pathology, Paulista University, Sao Paulo, Brazil.
Luciano F FelicioDepartment of Pathology, School of Veterinary Medicine, University of Sao Paulo, São Paulo, Brazil.
Universidade de São Paulo · BRUniversidade Paulista · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Autism is characterized by social deficits, repetitive behaviors, and cognitive inflexibility. The risk factors appear to include genetic and environmental conditions, such as prenatal infections and maternal dietary factors. Previous investigations by our group have demonstrated that prenatal exposure to lipopolysaccharide (LPS), which mimics infection by gram-negative bacteria, induces autistic-like behaviors. To understand the causes of autistic-like behaviors, we evaluated maternal serum metal concentrations, which are involved in intrauterine development and infection/inflammation. We identified reduced maternal levels of zinc, magnesium, selenium and manganese after LPS exposure. Because LPS induced maternal hypozincemia, we treated dams with zinc in an attempt to prevent or ease the impairments in the offspring. We evaluated the social and cognitive autistic-like behaviors and brain tissues of the offspring to identify the central mechanism that triggers the development of autism. Prenatal LPS exposure impaired play behaviors and T-maze spontaneous alternations, i.e., it induced autistic-like behaviors. Prenatal LPS also decreased tyrosine hydroxylase levels and increased the levels of mammalian target of rapamycin (mTOR) in the striatum. Thus, striatal dopaminergic impairments may be related to autism. Moreover, excessive signaling through the mTOR pathway has been considered a biomarker of autism, corroborating our rat model of autism. Prenatal zinc treatment prevented these autistic-like behaviors and striatal dopaminergic and mTOR disturbances in the offspring induced by LPS exposure. The present findings revealed a possible relation between maternal hypozincemia during gestation and the onset of autism. Furthermore, prenatal zinc administration appears to have a beneficial effect on the prevention of autism.

Indexed as

AnimalsAutistic DisorderBehavior, AnimalDopamineFemaleLipopolysaccharidesNeostriatumPregnancyPrenatal Exposure Delayed EffectsRatsRats, WistarTOR Serine-Threonine KinasesZincDopamineLipopolysaccharidesmTOR protein, ratTOR Serine-Threonine KinasesZinc

Identifiers

PMID26218250
PMCPMC4517817
OpenAlexW973490158

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.