Evidence map›Paper›PMID 38700503›Full record

SynthesisAging2024

Role of vitamin B12 and folic acid in treatment of Alzheimer's disease: a meta-analysis of randomized control trials.

Chih-Ying Lee, Lung Chan, Chaur-Jong Hu, Chien-Tai Hong, Jia-Hung Chen

Abstract readMeta-Analysis
In one paragraph

Synthesis in Aging, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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.

Chih-Ying LeeDepartment of Neurology, Shuang-Ho Hospital, Taipei Medical University, Taipei, Taiwan.
Lung ChanDepartment of Neurology, Shuang-Ho Hospital, Taipei Medical University, Taipei, Taiwan.
Chaur-Jong HuDepartment of Neurology, Shuang-Ho Hospital, Taipei Medical University, Taipei, Taiwan.
Chien-Tai HongDepartment of Neurology, Shuang-Ho Hospital, Taipei Medical University, Taipei, Taiwan.
Jia-Hung ChenDepartment of Neurology, Shuang-Ho Hospital, Taipei Medical University, Taipei, Taiwan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vitamin B12 and folic acid could reduce blood homocysteine levels, which was thought to slow down the progression of Alzheimer's disease (AD), but previous studies regarding the effect of vitamin B12 and folic acid in treatment of AD have not reached conclusive results. We searched PubMed and Embase until January 12, 2023. Only randomized control trials involving participants clearly diagnosed with AD and who received vitamin B12 and folic acid were enrolled. Five studies that met the criteria were selected for inclusion in the meta-analysis. Changes in cognitive function were measured based on either the Mini-Mental State Examination (MMSE) or the Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog). Changes in daily life function and the level of blood homocysteine were also investigated. After a 6-month treatment, administration of vitamin B12 and folic acid improved the MMSE scores more than placebo did (SMD = 0.21, 95% CI = 0.01 to 0.32,

Indexed as

Alzheimer DiseaseFolic AcidHomocysteineRandomized Controlled Trials as TopicVitamin B 12CognitionHumansFolic AcidHomocysteineVitamin B 12Alzheimer’s diseasefolic acidhomocysteinevitamin B12

Identifiers

PMID38700503
PMCPMC11132008

What Socratic 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 Socratic graph.