Evidence map›Paper›PMID 34212298›Full record

ReviewMetabolic brain disease2021

Experimental evidence of tyrosine neurotoxicity: focus on mitochondrial dysfunction.

Jade de Oliveira, Hémelin Resende Farias, Emilio Luiz Streck

Abstract readReview
PubMed Publisher
In one paragraph

Review in Metabolic brain disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.5field-weighted citation impact, top 6% 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

11 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. In-depth characterization of the CaScientific reports · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. 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

3 authors at 2 institutions in 1 country.

Jade de OliveiraGraduate Program in Biological Sciences: Biochemistry, Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, 90035-000, Brazil.
Hémelin Resende FariasGraduate Program in Biological Sciences: Biochemistry, Department of Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, 90035-000, Brazil.
Emilio Luiz StreckGraduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, 88806-000, Brazil. emiliostreck@gmail.com.
Universidade Federal do Rio Grande do Sul · BRUniversidade do Extremo Sul Catarinense · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tissue exposure to high levels of tyrosine, which is characteristic of an inborn error of metabolism named Tyrosinemia, is related to severe symptoms, including neurological alterations. The clinical manifestations and pathogenesis of tyrosine neurotoxicity can be recapitulated in experimental models in vivo and in vitro. A widely used experimental model to study brain tyrosine damage is the chronic and acute administration of this amino acid in infant rats. Other research groups and we have extensively studied the pathogenic events in the brain structures of rats exposed to high tyrosine levels. Rats administered acutely and chronically with tyrosine presented decreased and inhibition of the essential metabolism enzymes, e.g., Krebs cycle enzymes and mitochondrial respiratory complexes in the brain structures. These alterations induced by tyrosine toxicity were associated with brain oxidative stress, astrocytes, and, ultimately, cognitive impairments. Notably, in vivo data were corroborated by in vitro studies using cerebral regions homogenates incubated with tyrosine excess. Considering metabolism's importance to brain functioning, we hypothesized that mitochondrial and metabolic dysfunctions are closely related to neurological alterations induced by tyrosine neurotoxicity. Herein, we reviewed the main mechanisms associated with tyrosine neurotoxicity in experimental models, emphasizing the role of mitochondrial dysfunction.

Indexed as

AnimalsBrainDisease Models, AnimalEnergy MetabolismHumansMitochondriaNeurotoxicity SyndromesRatsTyrosineTyrosineMitochondriaNeurological alterationsNeurotoxicityOxidative stressTyrosine

Identifiers

PMID34212298
OpenAlexW3173825903

What OpenQuestion holds

Textmetadata
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.