Evidence map›Paper›PMID 36148631›Full record

ArticleAging cell2022

2-month ketogenic diet preferentially alters skeletal muscle and augments cognitive function in middle aged female mice.

Suraj J Pathak, Zeyu Zhou, Danielle Steffen, Tommy Tran, Yael Ad, Jon J Ramsey, Jennifer M Rutkowsky, Keith Baar

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.1field-weighted citation impact, top 7% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

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  14. The ketone body β-hydroxybutyrate shifts microglial metabolism and suppresses amyloid-β oligomer-induced inflammation in human microglia.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 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

8 authors at 1 institution in 1 country.

Suraj J PathakDepartment of Neurobiology, Physiology and Behavior, University of California, Davis, California, USA.
Zeyu ZhouDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California, USA.
Danielle SteffenDepartment of Neurobiology, Physiology and Behavior, University of California, Davis, California, USA.
Tommy TranDepartment of Neurobiology, Physiology and Behavior, University of California, Davis, California, USA.
Yael AdDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California, USA.
Jon J RamseyDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California, USA.
Jennifer M RutkowskyDepartment of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California, USA.
Keith BaarDepartment of Neurobiology, Physiology and Behavior, University of California, Davis, California, USA.ORCID 0000-0001-9337-6186
University of California, Davis · US

Funding

TRANSLOCATION OF p66Shc: KINETICS, FUNCTION, APOPTOSISP01AG025532 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI KIM, KYOUNGMI · 2007 to 2017
$12.1M
Reversing the epigenetic code of aging through ketogenic dietsP01AG062817 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI CORTOPASSI, GINO A · 2019 to 2023
$11.4M
Students Training in Advanced Research (STAR) ProgramT35OD010956 · OD · UNIVERSITY OF CALIFORNIA AT DAVIS · PI DANIKA L BANNASCH · 2012 to 2026
$1.6M
NIA NIH HHS P01 AG025532NIA NIH HHS P01 AG062817NIH HHS T35 OD010956
6 · The paper itself

Abstract

The effect of a ketogenic diet (KD) on middle aged female mice is poorly understood as most of this work have been conducted in young female mice or diseased models. We have previously shown that an isocaloric KD started at middle age in male mice results in enhanced mitochondrial mass and function after 2 months on diet and improved cognitive behavior after being on diet for 14 months when compared with their control diet (CD) fed counterparts. Here, we aimed to investigate the effect of an isocaloric 2-month KD or CD on healthy 14-month-old female mice. At 16 months of age cognitive behavior tests were performed and then serum, skeletal muscle, cortex, and hippocampal tissues were collected for biochemical analysis. Two months on a KD resulted in enhanced cognitive behavior associated with anxiety, memory, and willingness to explore. The improved neurocognitive function was associated with increased PGC1α protein in the gastrocnemius (GTN) muscle and nuclear fraction. The KD resulted in a tissue specific increase in mitochondrial mass and kynurenine aminotransferase (KAT) levels in the GTN and soleus muscles, with a corresponding decrease in kynurenine and increase in kynurenic acid levels in serum. With KAT proteins being responsible for converting kynurenine into kynurenic acid, which is unable to cross the blood brain barrier and be turned into quinolinic acid-a potent neurotoxin, this study provides a potential mechanism of crosstalk between muscle and brain in mice on a KD that may contribute to improved cognitive function in middle-aged female mice.

Indexed as

Diet, KetogenicAnimalsCognitionFemaleKynurenic AcidKynurenineMaleMiceMuscle, SkeletalNeurotoxinsPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaQuinolinic AcidKynurenic AcidKynurenineNeurotoxinsPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaQuinolinic AcidacetylationAlzheimer's diseasecognitive behaviormitochondriaskeletal muscle

Identifiers

PMID36148631
PMCPMC9577944
OpenAlexW4296800296

What OpenQuestion holds

Textmetadata
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.