Evidence map›Paper›PMID 32369441›Full record

ArticleAging2020

Metabolic switching is impaired by aging and facilitated by ketosis independent of glycogen.

Abbi Hernandez, Leah Truckenbrod, Quinten Federico, Keila Campos, Brianna Moon, Nedi Ferekides, Meagan Hoppe, Dominic D'Agostino, Sara Burke

Open access · hybridAbstract read
In one paragraph

Article in Aging, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

27 citing papers in PubMed, 33 citations in OpenAlex.

  1. Non-Pharmacological Inhibition of Aging: Neuroendocrine and Antioxidant Protection of the Liver under the Influence of an Enriched Environment.Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections · 2026
    Article
  2. Article
  3. Molecular Framework of the Onset and Progression of Skeletal Muscle Aging.International journal of molecular sciences · 2025
    Review
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  5. Review
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  8. Tandem metabolic reaction-based sensors unlock in vivo metabolomics.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
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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

9 authors at 3 institutions in 1 country.

Abbi HernandezDepartment of Neuroscience, University of Florida, Gainesville, FL 32611, USA.
Leah TruckenbrodDepartment of Neuroscience, University of Florida, Gainesville, FL 32611, USA.
Quinten FedericoDepartment of Neuroscience, University of Florida, Gainesville, FL 32611, USA.
Keila CamposDepartment of Neuroscience, University of Florida, Gainesville, FL 32611, USA.
Brianna MoonDepartment of Neuroscience, University of Florida, Gainesville, FL 32611, USA.
Nedi FerekidesDepartment of Neuroscience, University of Florida, Gainesville, FL 32611, USA.
Meagan HoppeDepartment of Neuroscience, University of Florida, Gainesville, FL 32611, USA.
Dominic D'AgostinoDepartment of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33612, USA.
Sara BurkeDepartment of Neuroscience, University of Florida, Gainesville, FL 32611, USA.
University of Florida · USUniversity of Alabama at Birmingham · USUniversity of South Florida · US

Funding

Interdisciplinary Training in Pathobiology and Rehabilitation Medicine.T32HD071866 · NICHD · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI JAMES RIMMER, Anna E. Thalacker-Mercer · 2012 to 2026
$4.8M
Metabolic Interventions for Enhancing Cognitive Resilience in Aging and Alzheimers DiseaseRF1AG060977 · NIA · UNIVERSITY OF FLORIDA · PI BURKE, SARA N · 2019 to 2019
$1.9M
Metabolic Mechanisms for Treating Cognitive AgingF31AG058455 · NIA · UNIVERSITY OF FLORIDA · PI HERNANDEZ, ABIGAIL LYNN · 2017 to 2017
$34k
NIA NIH HHS F31 AG058455NIA NIH HHS RF1 AG060977NICHD NIH HHS T32 HD071866
6 · The paper itself

Abstract

The ability to switch between glycolysis and ketosis promotes survival by enabling metabolism through fat oxidation during periods of fasting. Carbohydrate restriction or stress can also elicit metabolic switching. Keto-adapting from glycolysis is delayed in aged rats, but factors mediating this age-related impairment have not been identified. We measured metabolic switching between glycolysis and ketosis, as well as glycogen dynamics, in young and aged rats undergoing time-restricted feeding (TRF) with a standard diet or a low carbohydrate ketogenic diet (KD). TRF alone reversed markers of insulin-related metabolic deficits and accelerated metabolic switching in aged animals. A KD+TRF, however, provided additive benefits on these variables. Remarkably, the ability to keto-adapt was not related to glycogen levels and KD-fed rats showed an enhanced elevation in glucose following epinephrine administration. This study provides new insights into the mechanisms of keto-adaptation demonstrating the utility of dietary interventions to treat metabolic impairments across the lifespan.

Indexed as

Adaptation, PhysiologicalAgingAnimalsBlood GlucoseDiet, KetogenicDisease Models, AnimalGlycogenGlycolysisKetosisMaleRatsRats, Inbred BNRats, Inbred F344Blood GlucoseGlycogendietglucoseintermittent fastingketo-adaptationketogenic diet

Identifiers

PMID32369441
PMCPMC7244089
OpenAlexW3022000657

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.