Evidence map›Paper›PMID 34678069›Full record

ArticleScience advances2021

Neurodegenerative processes accelerated by protein malnutrition and decelerated by essential amino acids in a tauopathy mouse model.

Hideaki Sato, Yuhei Takado, Sakiko Toyoda, Masako Tsukamoto-Yasui, Keiichiro Minatohara, Hiroyuki Takuwa, Takuya Urushihata, Manami Takahashi, Masafumi Shimojo, Maiko Ono and 16 more

Open access · goldAbstract read
In one paragraph

Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

32 citing papers in PubMed, 44 citations in OpenAlex.

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  10. Gut: The gate and key to brain.Chinese medical journal · 2025
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  16. The Metabolic Syndrome, a Human Disease.International journal of molecular sciences · 2024
    Review
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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

26 authors at 2 institutions in 1 country.

Hideaki SatoAjinomoto Co., Inc., Kawasaki 210-8681, Japan.ORCID 0000-0002-8343-2102
Yuhei TakadoDepartment of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba 263-8555, Japan.ORCID 0000-0001-7484-8424
Sakiko ToyodaAjinomoto Co., Inc., Kawasaki 210-8681, Japan.
Masako Tsukamoto-YasuiAjinomoto Co., Inc., Kawasaki 210-8681, Japan.
Keiichiro MinatoharaDepartment of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba 263-8555, Japan.
Hiroyuki TakuwaDepartment of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba 263-8555, Japan.ORCID 0000-0003-1166-9845
Takuya UrushihataDepartment of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba 263-8555, Japan.ORCID 0000-0001-7192-2940
Manami TakahashiDepartment of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba 263-8555, Japan.ORCID 0000-0003-0829-8780
Masafumi ShimojoDepartment of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba 263-8555, Japan.
Maiko OnoDepartment of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba 263-8555, Japan.ORCID 0000-0003-2239-1754
Jun MaedaDepartment of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba 263-8555, Japan.
Asumi OriharaDepartment of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba 263-8555, Japan.ORCID 0000-0003-0974-3188
Naruhiko SaharaDepartment of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba 263-8555, Japan.
Ichio AokiDepartment of Molecular Imaging and Theranostics, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba 263-8555, Japan.ORCID 0000-0002-4429-5053
Sachise KarakawaAjinomoto Co., Inc., Kawasaki 210-8681, Japan.
Muneki IsokawaAjinomoto Co., Inc., Kawasaki 210-8681, Japan.ORCID 0000-0003-4110-6322
Noriko KawasakiAjinomoto Co., Inc., Kawasaki 210-8681, Japan.
Mika KawasakiAjinomoto Co., Inc., Kawasaki 210-8681, Japan.
Satoko UenoAjinomoto Co., Inc., Kawasaki 210-8681, Japan.
Mayuka KandaAjinomoto Co., Inc., Kawasaki 210-8681, Japan.
Mai NishimuraAjinomoto Co., Inc., Kawasaki 210-8681, Japan.
Katsuya SuzukiAjinomoto Co., Inc., Kawasaki 210-8681, Japan.
Akira MitsuiAjinomoto Co., Inc., Kawasaki 210-8681, Japan.ORCID 0000-0003-3014-741X
Kenji NagaoAjinomoto Co., Inc., Kawasaki 210-8681, Japan.ORCID 0000-0002-0946-1431
Akihiko KitamuraAjinomoto Co., Inc., Kawasaki 210-8681, Japan.ORCID 0000-0002-8747-2902
Makoto HiguchiDepartment of Functional Brain Imaging, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba 263-8555, Japan.ORCID 0000-0002-3934-5810
National Institutes for Quantum Science and Technology · JPAjinomoto (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Protein malnutrition is epidemiologically suggested as a potential risk factor for senile dementia, although molecular mechanisms linking dietary proteins and amino acids to neurodegeneration remain unknown. Here, we show that a low-protein diet resulted in down-regulated expression of synaptic components and a modest acceleration of brain atrophy in mice modeling neurodegenerative tauopathies. Notably, these abnormal phenotypes were robustly rescued by the administration of seven selected essential amino acids. The up-regulation of inflammation-associated gene expression and progressive brain atrophy in the tauopathy model were profoundly suppressed by treatment with these essential amino acids without modifications of tau depositions. Moreover, the levels of kynurenine, an initiator of a pathway inducing neuroinflammatory gliosis and neurotoxicity in the brain, were lowered by treatment through inhibition of kynurenine uptake in the brain. Our findings highlight the importance of specific amino acids as systemic mediators of brain homeostasis against neurodegenerative processes.

Identifiers

PMID34678069
PMCPMC8535828
OpenAlexW3206652150

What OpenQuestion holds

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Registered trials

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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.