Evidence map›Paper›PMID 34869825›Full record

ArticleAlzheimer's & dementia (New York, N. Y.)2021

A ketogenic supplement improves white matter energy supply and processing speed in mild cognitive impairment.

Maggie Roy, Mélanie Fortier, François Rheault, Manon Edde, Etienne Croteau, Christian-Alexandre Castellano, Francis Langlois, Valérie St-Pierre, Bernard Cuenoud, Christian Bocti and 3 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's & dementia (New York, N. Y.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
3.2field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 25 citations in OpenAlex.

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  9. Ketogenic diet for mood disorders from animal models to clinical application.Journal of neural transmission (Vienna, Austria : 1996) · 2023
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  11. Nutritional metabolism and cerebral bioenergetics in Alzheimer's disease and related dementias.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023
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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

13 authors at 4 institutions in 2 countries.

Maggie RoyResearch Center on Aging CIUSSS de l'Estrie-CHUS Sherbrooke Quebec Canada.
Mélanie FortierResearch Center on Aging CIUSSS de l'Estrie-CHUS Sherbrooke Quebec Canada.
François RheaultDepartment of Computer Science Université de Sherbrooke Sherbrooke Quebec Canada.
Manon EddeDepartment of Computer Science Université de Sherbrooke Sherbrooke Quebec Canada.
Etienne CroteauCentre de Recherche-CHUS CIUSSS de l'Estrie-CHUS Sherbrooke Quebec Canada.
Christian-Alexandre CastellanoCentre de Recherche-CHUS CIUSSS de l'Estrie-CHUS Sherbrooke Quebec Canada.
Francis LangloisResearch Center on Aging CIUSSS de l'Estrie-CHUS Sherbrooke Quebec Canada.
Valérie St-PierreResearch Center on Aging CIUSSS de l'Estrie-CHUS Sherbrooke Quebec Canada.
Bernard CuenoudNestlé Health Science Lausanne Switzerland.
Christian BoctiResearch Center on Aging CIUSSS de l'Estrie-CHUS Sherbrooke Quebec Canada.
Tamas FulopResearch Center on Aging CIUSSS de l'Estrie-CHUS Sherbrooke Quebec Canada.
Maxime DescoteauxDepartment of Computer Science Université de Sherbrooke Sherbrooke Quebec Canada.
Stephen C CunnaneResearch Center on Aging CIUSSS de l'Estrie-CHUS Sherbrooke Quebec Canada.
Université de Sherbrooke · CACentre Intégré Universitaire de Santé et de Services Sociaux du Centre-Sud-de-l'Île-de-Montréal · CACentre Hospitalier Universitaire de Sherbrooke · CANestlé (Switzerland) · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWhite matter (WM) energy supply is crucial for axonal function and myelin maintenance. An exogenous source of ketones, the brain's alternative fuel to glucose, bypasses the brain's glucose-specific energy deficit and improves cognitive outcomes in mild cognitive impairment (MCI). How an additional supply of ketones affects glucose or ketone uptake in specific WM fascicles in MCI has not previously been reported.

methodsThis 6-month interventional study included MCI participants randomized to a placebo (

resultsKetone uptake was increased in the kMCT group by 2.5- to 3.2-fold in all nine WM fascicles of interest ( DISCUSSION: A 6-month kMCT supplement improved WM energy supply in MCI by increasing ketone uptake in WM fascicles. The significant positive association with processing speed suggests that ketones may have a role in myelin integrity in MCI.

Indexed as

acetoacetateAlzheimer's diseasebeta‐hydroxybutyratebrain metabolismdiffusion MRIfascicleglucoseketonemedium chain triglyceridemild cognitive impairmentpositron emission tomography imagingprocessing speedtractographytractometrywhite matter

Identifiers

PMID34869825
PMCPMC8596139
OpenAlexW3211737115

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.