Evidence map›Paper›PMID 30374909›Full record

ArticleNeurotoxicity research2019

Ameliorative Effects of α-Tocopherol and/or Coenzyme Q10 on Phenytoin-Induced Cognitive Impairment in Rats: Role of VEGF and BDNF-TrkB-CREB Pathway.

Marwa M Nagib, Mariane G Tadros, Rania M Rahmo, Nagwa Ali Sabri, Amani E Khalifa, Somaia I Masoud

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Article in Neurotoxicity research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

13 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Coenzyme Q10 and Xenobiotic Metabolism: An Overview.International journal of molecular sciences · 2025
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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 1 country.

Marwa M NagibDepartment of Pharmacology and Toxicology, Faculty of Pharmacy, Misr International University, KM 28 Cairo - Ismailia Road Ahmed Orabi District, Cairo, Egypt. marwa.naguib@miuegypt.edu.eg.
Mariane G TadrosDepartment of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
Rania M RahmoDepartment of Pharmacology and Toxicology, Faculty of Pharmacy, Misr International University, KM 28 Cairo - Ismailia Road Ahmed Orabi District, Cairo, Egypt.
Nagwa Ali SabriDepartment of Clinical Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
Amani E KhalifaDepartment of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University seconded to 57357 Children Cancer Hospital, Cairo, Egypt.
Somaia I MasoudDepartment of Clinical Pharmacology, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
Ain Shams University · EGMisr International University · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Phenytoin is one of the most well-known antiepileptic drugs that cause cognitive impairment which is closely related to cAMP response element-binding protein (CREB) brain-derived neurotrophic factor (BDNF) signaling pathway. Moreover, vascular endothelial growth factor (VEGF), an endothelial growth factor, has a documented role in neurogenesis and neuronal survival and cognitive impairment. Therefore, this study aimed to investigate the influence of powerful antioxidants: α-Toc and CoQ10 alone or combined in the preservation of brain tissues and the maintenance of memory formation in phenytoin-induced cognitive impairment in rats. The following behavioral test novel object recognition and elevated plus maze were assessed after 14 days of treatment. Moreover, VEGF, BDNF, TrkB, and CREB gene expression levels in the hippocampus and prefrontal cortex were estimated using RT-PCR. Both α-Toc and CoQ10 alone or combined with phenytoin showed improvement in behavioral tests compared to phenytoin. Mechanistically, α-Toc and/or CoQ10 decreases the VEGF mRNA expression, while increases BDNF-TrKB-CREB mRNA levels in hippocampus and cortex of phenytoin-treated rats. Collectively, α-Toc and/or CoQ10 alleviated the phenytoin-induced cognitive impairment through suppressing oxidative damage. The underlying molecular mechanism of the treating compounds is related to the VEGF and enhancing BDNF-TrkB-CREB signaling pathway. Our study indicated the usefulness α-Toc or CoQ10 as an adjuvant to antiepileptic drugs with an advantage of preventing cognitive impairment and oxidative stress.

Indexed as

alpha-TocopherolAnimalsAntioxidantsBrain-Derived Neurotrophic FactorCognitive DysfunctionCyclic AMP Response Element-Binding ProteinDrug Therapy, CombinationMalePhenytoinRatsRats, WistarReceptor, trkBSignal TransductionTreatment OutcomeUbiquinoneVascular Endothelial Growth Factor Aalpha-TocopherolAntioxidantsBdnf protein, ratBrain-Derived Neurotrophic Factorcoenzyme Q10Creb1 protein, ratCyclic AMP Response Element-Binding ProteinNtrk2 protein, ratPhenytoinReceptor, trkBUbiquinoneVascular Endothelial Growth Factor Avascular endothelial growth factor A, ratBDNF-TrkB-CREB signaling pathwayCoQ10PhenytoinVascular endothelial growth factor (VEGF)α-Toc

Identifiers

PMID30374909
OpenAlexW2899067197

What OpenQuestion holds

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Read underepoch 390

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.