Evidence map›Paper›PMID 23559405›Full record

ArticleMolecular neurobiology2013

Acute and chronic administration of the branched-chain amino acids decreases nerve growth factor in rat hippocampus.

Giselli Scaini, Lis Mairá Mello-Santos, Camila B Furlanetto, Isabela C Jeremias, Francielle Mina, Patrícia F Schuck, Gustavo C Ferreira, Luiza W Kist, Talita C B Pereira, Maurício R Bogo and 1 more

Abstract read
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In one paragraph

Article in Molecular neurobiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.2field-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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
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  15. Amino Acid Catabolism in Alzheimer's Disease Brain: Friend or Foe?Oxidative medicine and cellular longevity · 2017
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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

11 authors at 2 institutions in 1 country.

Giselli ScainiLaboratório de Bioenergética e Núcleo de Excelência em Neurociências Aplicadas de Santa Catarina (NENASC), Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil.
Lis Mairá Mello-Santos
Camila B Furlanetto
Isabela C Jeremias
Francielle Mina
Patrícia F Schuck
Gustavo C Ferreira
Luiza W Kist
Talita C B Pereira
Maurício R Bogo
Emilio L Streck
Universidade do Extremo Sul Catarinense · BRInstituto Nacional de Ciência e Tecnologia Translacional em Medicina

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Maple syrup urine disease (MSUD) is a neurometabolic disorder caused by deficiency of the activity of the mitochondrial enzyme complex branched-chain α-keto acid dehydrogenase leading to accumulation of the branched-chain amino acids (BCAA) and their corresponding branched-chain α-keto acids. In this study, we examined the effects of acute and chronic administration of BCAA on protein levels and mRNA expression of nerve growth factor (NGF) considering that patients with MSUD present neurological dysfunction and cognitive impairment. Considering previous observations, it is suggested that oxidative stress may be involved in the pathophysiology of the neurological dysfunction of MSUD. We also investigated the influence of antioxidant treatment (N-acetylcysteine and deferoxamine) in order to verify the influence of oxidative stress in the modulation of NGF levels. Our results demonstrated decreased protein levels of NGF in the hippocampus after acute and chronic administration of BCAA. In addition, we showed a significant decrease in the expression of ngf in the hippocampus only following acute administration in 10-day-old rats. Interestingly, antioxidant treatment was able to prevent the decrease in NGF levels by increasing ngf expression. In conclusion, the results suggest that BCAA is involved in the regulation of NGF in the developing rat. Thus, it is possible that alteration of neurotrophin levels during brain maturation could be of pivotal importance in the impairment of cognition provoked by BCAA. Moreover, the decrease in NGF levels was prevented by antioxidant treatment, reinforcing that the hypothesis of oxidative stress can be an important pathophysiological mechanism underlying the brain damage observed in MSUD.

Indexed as

Amino Acids, Branched-ChainAnimalsAntioxidantsCerebral CortexGene Expression RegulationHippocampusMaleNeostriatumNerve Growth FactorRatsRats, WistarAmino Acids, Branched-ChainAntioxidantsNerve Growth Factor

Identifiers

PMID23559405
OpenAlexW2003860356

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.