Evidence map›Paper›PMID 33562042›Full record

ArticleNutrients2021

L-Arginine Reduces Nitro-Oxidative Stress in Cultured Cells with Mitochondrial Deficiency.

Camila D S Barros, Jomênica B Livramento, Margaret G Mouro, Elisa Mieko Suemitsu Higa, Carlos T Moraes, Celia Harumi Tengan

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.6field-weighted citation impact, top 37% 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

12 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Arginine ameliorates motor and survival deficits in MFN2-Deficient Drosophila models.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
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  10. Article
  11. A proprietary blend ofFood & nutrition research · 2023
    Article
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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

6 authors at 2 institutions in 2 countries.

Camila D S BarrosDepartment of Neurology and Neurosurgery, Escola Paulista de Medicina, Universidade Federal de São Paulo, Sao Paulo 04039-032, Brazil.
Jomênica B LivramentoDepartment of Neurology and Neurosurgery, Escola Paulista de Medicina, Universidade Federal de São Paulo, Sao Paulo 04039-032, Brazil.ORCID 0000-0002-3724-6288
Margaret G MouroEmergency and Nephrology Division, Escola Paulista de Medicina, Universidade Federal de Sao Paulo, Sao Paulo 04039-032, Brazil.
Elisa Mieko Suemitsu HigaEmergency and Nephrology Division, Escola Paulista de Medicina, Universidade Federal de Sao Paulo, Sao Paulo 04039-032, Brazil.
Carlos T MoraesDepartment of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA.ORCID 0000-0002-8077-7092
Celia Harumi TenganDepartment of Neurology and Neurosurgery, Escola Paulista de Medicina, Universidade Federal de São Paulo, Sao Paulo 04039-032, Brazil.
Universidade Federal de São Paulo · BRUniversity of Miami · US

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico -Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Finance Code 001Fundação de Amparo à Pesquisa do Estado de São Paulo 2017/22574-0
6 · The paper itself

Abstract

L-Arginine (L-ARG) supplementation has been suggested as a therapeutic option in several diseases, including Mitochondrial Encephalomyopathy, Lactic Acidosis, and Stroke-like syndrome (MELAS), arguably the most common mitochondrial disease. It is suggested that L-ARG, a nitric oxide (NO) precursor, can restore NO levels in blood vessels, improving cerebral blood flow. However, NO also participates in mitochondrial processes, such as mitochondrial biogenesis, the regulation of the respiratory chain, and oxidative stress. This study investigated the effects of L-ARG on mitochondrial function, nitric oxide synthesis, and nitro-oxidative stress in cell lines harboring the MELAS mitochondrial DNA (mtDNA) mutation (m.3243A>G). We evaluated mitochondrial enzyme activity, mitochondrial mass, NO concentration, and nitro-oxidative stress. Our results showed that m.3243A>G cells had increased NO levels and protein nitration at basal conditions. Treatment with L-ARG did not affect the mitochondrial function and mass but reduced the intracellular NO concentration and nitrated proteins in m.3243A>G cells. The same treatment led to opposite effects in control cells. In conclusion, we showed that the main effect of L-ARG was on protein nitration. Lowering protein nitration is probably involved in the mechanism related to L-ARG supplementation benefits in MELAS patients.

Indexed as

ArginineCell LineDNA, MitochondrialHumansMitochondriaMitochondrial DiseasesMutationNitric OxideOxidative StressArginineDNA, MitochondrialNitric Oxideargininemitochondrial diseasemitochondrial DNAnitrationnitric oxideoxidative stress

Identifiers

PMID33562042
PMCPMC7914615
OpenAlexW3126807724

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.