Evidence map›Paper›PMID 37447150›Full record

SynthesisNutrients2023

The Role of Vitamin B6 in Peripheral Neuropathy: A Systematic Review.

Raman Muhamad, Alexandra Akrivaki, Georgia Papagiannopoulou, Periklis Zavridis, Panagiotis Zis

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Nutrients, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
11.1field-weighted citation impact, top 1% 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

34 citing papers in PubMed, 54 citations in OpenAlex.

  1. Trial
  2. Review
  3. Vitamins and nutraceuticals in glaucoma research.European journal of ophthalmology · 2026
    Review
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  5. Article
  6. Article
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  12. Different packing motifs mediated by hydrogen bonds in the hydro-chloride salts of two pyridoxalActa crystallographica. Section E, Crystallographic communications · 2025
    Article
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  15. Review
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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

5 authors at 2 institutions in 3 countries.

Raman MuhamadSheffield Institute for Translational Neuroscience, University of Sheffield, Sheffield S10 2HQ, UK.ORCID 0009-0005-0820-6753
Alexandra AkrivakiSecond Department of Neurology, School of Medicine, Attikon University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece.
Georgia PapagiannopoulouSecond Department of Neurology, School of Medicine, Attikon University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece.
Periklis ZavridisCyprus Pain Clinic, Egkomi 2415, Cyprus.ORCID 0000-0002-8368-6946
Panagiotis ZisSecond Department of Neurology, School of Medicine, Attikon University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece.ORCID 0000-0001-8567-3092
National and Kapodistrian University of Athens · GRUniversity of Sheffield · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionVitamin B6 is a water-soluble vitamin that is naturally present in many foods and is accessible in many dietary supplements. The three natural forms are pyridoxine, pyridoxal, and pyridoxamine. Both vitamin B6 deficiency and high B6 intake have been described as risk factors for developing peripheral neuropathy (PN). The aim of this systematic review is to characterize and comprehensively describe B6-related PN.

methodA systematic, computer-based search was conducted using the PubMed database. Twenty articles were included in this review.

resultsHigher vitamin B6 levels, which usually occur following the taking of nutritional supplements, may lead to the development of a predominantly, if not exclusively, sensory neuropathy of the axonal type. After pyridoxine discontinuation, such patients subjectively report improved symptoms. However, although low vitamin B6 levels can be seen in patients suffering from peripheral neuropathy of various etiologies, there is no firm evidence that low B6 levels have a direct causal relationship with PN. Many studies suggest subjective improvement of neuropathy symptoms in patients suffering from PN of various etiologies after receiving B6 supplementation; however, no data about B6 administration as a monotherapy exist, only as part of a combination treatment, usually with other vitamins. Therefore, the potential therapeutic role of B6 cannot be confirmed to date. Supplementation with vitamin B6, even as part of a nutritional multivitamin supplement, has not been proven harmful at permitted daily doses in patients who already suffer from PN.

conclusionCurrent scientific evidence supports a neurotoxic role of B6 at high levels. Although some studies suggest that low B6 is also a potential risk factor, further studies in this area are needed.

Indexed as

Peripheral Nervous System DiseasesPyridoxineHumansPyridoxalPyridoxamineVitamin B 6VitaminsPyridoxalPyridoxaminePyridoxineVitamin B 6VitaminsB6deficiencyneuropathynutritiontoxicity

Identifiers

PMID37447150
PMCPMC10343656
OpenAlexW4381664401

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.