Evidence map›Paper›PMID 37176516›Full record

ArticleJournal of clinical medicine2023

The Effects of Methylfolate on Cognitive Decline and Dementia: A Protocol for Systematic Review and Meta-Analysis.

Leícia Iris de Assunção Prado, Ana Lúcia Junger, Leonardo Ferreira Caixeta, Matias Noll, Cesar de Oliveira, Érika Aparecida Silveira

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.9field-weighted citation impact, top 28% 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

4 citing papers in PubMed, 4 citations in OpenAlex.

  1. Review
  2. The Role of GCH1 Deficiency and Tetrahydrobiopterin in Mental Health.International journal of molecular sciences · 2025
    Article
  3. Article
  4. 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

6 authors at 3 institutions in 3 countries.

Leícia Iris de Assunção PradoPostgraduate Program in Health Sciences, Faculty of Medicine, Federal University of Goiás, Goiania 74605-050, Brazil.ORCID 0000-0002-5305-0613
Ana Lúcia JungerPostgraduate Program in Health Sciences, Faculty of Medicine, Federal University of Goiás, Goiania 74605-050, Brazil.ORCID 0000-0002-1526-7440
Leonardo Ferreira CaixetaPostgraduate Program in Health Sciences, Faculty of Medicine, Federal University of Goiás, Goiania 74605-050, Brazil.ORCID 0000-0002-5736-9058
Matias NollGoiano Federal Institute, Ceres 76300-000, Brazil.ORCID 0000-0002-1482-0718
Cesar de OliveiraDepartment of Epidemiology & Public Health, Institute of Epidemiology & Health Care, University College London, London WC1E 6BT, UK.ORCID 0000-0002-4099-4762
Érika Aparecida SilveiraPostgraduate Program in Health Sciences, Faculty of Medicine, Federal University of Goiás, Goiania 74605-050, Brazil.ORCID 0000-0002-8839-4520
Universidade Federal de Goiás · BRUniversity College London · GBUniversity of Southern Denmark · DK

Funding

Economic and Social Research Council ES/T008822/11
6 · The paper itself

Abstract

introductionDementia and cognitive decline are highly prevalent in later life and are growing public health concerns worldwide due to the increasing aging population. Individuals diagnosed with dementia have reduced mental function, resulting in social and cognitive skill deficits, increased dependence, and reduced autonomy-all of which are conditions associated with higher mortality rates. This systematic review aims to assess the effectiveness of treating dementia and cognitive decline with methylfolate. The main outcomes analyzed will be dementia and changes in cognitive function measured by different instruments in older adults treated with methylfolate. Secondary outcomes, such as inflammatory markers, plasma folic-acid levels, and total homocysteine, will also be assessed. METHODS AND ANALYSIS: This study will be carried out in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. This protocol is registered in the International Prospective Registry of Systematic Reviews, under the code CRD42021275755. We will include clinical trials conducted with older adults diagnosed with dementia or cognitive decline and treated with folic acid. The searches will be conducted on the PubMed, Scopus, and Embase databases, and the articles will be selected by reading their titles and abstracts first, followed by the full text. The quality of the selected studies will be assessed using GRADE and the risk of bias will be assessed using the Downs-and-Black method. ETHICS AND DISSEMINATION: The results will be presented at scientific conferences and disseminated by publishing a scientific article in an international English-language journal. We hope to find robust and significant evidence regarding the effectiveness of methylfolate supplementation in improving dementia symptoms and cognitive decline among older adults. By systematizing this evidence and possibly performing a meta-analysis study, we expect to significantly contribute to the treatment of this health problem, reduce mortality, and improve the quality of life and health of this population, boosting the development of medical protocols capable of reducing the financial effects of public health.

Indexed as

ageingAlzheimer’s diseasecognitive functiondementiafolic acidmethylfolatemild cognitive impairment

Identifiers

PMID37176516
PMCPMC10179434
OpenAlexW4366829042

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.