Evidence map›Paper›PMID 34031536›Full record

ArticleMolecular psychiatry2021

Intermittent fasting enhances long-term memory consolidation, adult hippocampal neurogenesis, and expression of longevity gene Klotho.

Gisele Pereira Dias, Tytus Murphy, Doris Stangl, Selda Ahmet, Benjamin Morisse, Alina Nix, Lindsey J Aimone, James B Aimone, Makoto Kuro-O, Fred H Gage and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Molecular psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 2 pooled it
9.5field-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

72 citing papers in PubMed, 2 syntheses or guidelines pooled it, 107 citations in OpenAlex.

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  7. Lipid metabolism, microglia, and stroke.Neural regeneration research · 2026
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12 more citing papers are in PubMed but not listed here.

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

11 authors at 4 institutions in 4 countries.

Gisele Pereira Dias *Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Tytus Murphy *Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Doris Stangl *Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Selda AhmetDepartment of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Benjamin MorisseDepartment of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Alina NixDepartment of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Lindsey J AimoneLaboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, CA, USA.
James B AimoneCenter for Computing Research, Sandia National Laboratories, Albuquerque, NM, USA.ORCID http://orcid.org/0000-0002-7361-253X
Makoto Kuro-ODivision of Anti-Ageing Medicine, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan.ORCID http://orcid.org/0000-0003-0018-7269
Fred H GageLaboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, CA, USA.ORCID http://orcid.org/0000-0002-0938-4106
Sandrine ThuretDepartment of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK. sandrine.1.thuret@kcl.ac.uk.ORCID http://orcid.org/0000-0003-1260-8083
King's College London · GBSalk Institute for Biological Studies · USJichi Medical University · JPSandia National Laboratories · US

Funding

Viral Vector Core (VVC)P30CA014195 · NCI · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI Reuben Shaw · 1985 to 2026
$82.8M
Medical Research Council MR/K500811/1Medical Research Council MR/N030087/1NCI NIH HHS P30 CA014195
6 · The paper itself

Abstract

Daily calorie restriction (CR) and intermittent fasting (IF) enhance longevity and cognition but the effects and mechanisms that differentiate these two paradigms are unknown. We examined whether IF in the form of every-other-day feeding enhances cognition and adult hippocampal neurogenesis (AHN) when compared to a matched 10% daily CR intake and ad libitum conditions. After 3 months under IF, female C57BL6 mice exhibited improved long-term memory retention. IF increased the number of BrdU-labeled cells and neuroblasts in the hippocampus, and microarray analysis revealed that the longevity gene Klotho (Kl) was upregulated in the hippocampus by IF only. Furthermore, we found that downregulating Kl in human hippocampal progenitor cells led to decreased neurogenesis, whereas Kl overexpression increased neurogenesis. Finally, histological analysis of Kl knockout mice brains revealed that Kl is required for AHN, particularly in the dorsal hippocampus. These data suggest that IF is superior to 10% CR in enhancing memory and identifies Kl as a novel candidate molecule that regulates the effects of IF on cognition likely via AHN enhancement.

Indexed as

FastingMemory ConsolidationAnimalsFemaleHippocampusMemory, Long-TermMiceMice, Inbred C57BLNeurogenesis

Identifiers

PMID34031536
PMCPMC8760057
OpenAlexW3164917160

What OpenQuestion holds

Textmetadata
LicenceTDM
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.