Manipulating dietary protein and amino acids in the common marmoset Callithrix jacchus impacts circulating metabolites and FGF21 levels

Abstract Restricting dietary protein intake has metabolic and physiological benefits for animals. Rodent studies have identified the involvement of a hormone, fibroblast growth factor 21 (FGF21), which is upregulated by sensing amino acid scarcity. However, to what extent this mechanism is conserved...

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Main Authors: Yuka Fujita, Tomoko Ishibuchi, Akiko Uematsu, Takuya Hayashi, Fumiaki Obata
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-16749-0
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author Yuka Fujita
Tomoko Ishibuchi
Akiko Uematsu
Takuya Hayashi
Fumiaki Obata
author_facet Yuka Fujita
Tomoko Ishibuchi
Akiko Uematsu
Takuya Hayashi
Fumiaki Obata
author_sort Yuka Fujita
collection DOAJ
description Abstract Restricting dietary protein intake has metabolic and physiological benefits for animals. Rodent studies have identified the involvement of a hormone, fibroblast growth factor 21 (FGF21), which is upregulated by sensing amino acid scarcity. However, to what extent this mechanism is conserved in primates remains elusive. Using common marmosets, Callithrix jacchus, as a non-human primate model, we develop a protocol for protein restriction and dietary amino acid manipulation. Low protein diet induces a decrease in blood urea nitrogen, altered plasma amino acid profiles, and an increase in plasma FGF21. Supplementation of purified amino acids to the diet suppresses plasma features of protein restriction. Our study provides a dietary intervention technique in marmosets and an insight into the evolutionarily conserved mechanism of FGF21 induction during protein restriction.
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institution Kabale University
issn 2045-2322
language English
publishDate 2025-08-01
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series Scientific Reports
spelling doaj-art-6ae70bb4a5fd42e0818ec3a25a781d0c2025-08-24T11:22:55ZengNature PortfolioScientific Reports2045-23222025-08-0115111210.1038/s41598-025-16749-0Manipulating dietary protein and amino acids in the common marmoset Callithrix jacchus impacts circulating metabolites and FGF21 levelsYuka Fujita0Tomoko Ishibuchi1Akiko Uematsu2Takuya Hayashi3Fumiaki Obata4Laboratory for Nutritional Biology, RIKEN Center for Biosystems Dynamics ResearchLaboratory for Brain Connectomics Imaging, RIKEN Center for Biosystems Dynamics ResearchLaboratory for Brain Connectomics Imaging, RIKEN Center for Biosystems Dynamics ResearchLaboratory for Brain Connectomics Imaging, RIKEN Center for Biosystems Dynamics ResearchLaboratory for Nutritional Biology, RIKEN Center for Biosystems Dynamics ResearchAbstract Restricting dietary protein intake has metabolic and physiological benefits for animals. Rodent studies have identified the involvement of a hormone, fibroblast growth factor 21 (FGF21), which is upregulated by sensing amino acid scarcity. However, to what extent this mechanism is conserved in primates remains elusive. Using common marmosets, Callithrix jacchus, as a non-human primate model, we develop a protocol for protein restriction and dietary amino acid manipulation. Low protein diet induces a decrease in blood urea nitrogen, altered plasma amino acid profiles, and an increase in plasma FGF21. Supplementation of purified amino acids to the diet suppresses plasma features of protein restriction. Our study provides a dietary intervention technique in marmosets and an insight into the evolutionarily conserved mechanism of FGF21 induction during protein restriction.https://doi.org/10.1038/s41598-025-16749-0Protein restrictionMarmosetAmino acidsFGF21
spellingShingle Yuka Fujita
Tomoko Ishibuchi
Akiko Uematsu
Takuya Hayashi
Fumiaki Obata
Manipulating dietary protein and amino acids in the common marmoset Callithrix jacchus impacts circulating metabolites and FGF21 levels
Scientific Reports
Protein restriction
Marmoset
Amino acids
FGF21
title Manipulating dietary protein and amino acids in the common marmoset Callithrix jacchus impacts circulating metabolites and FGF21 levels
title_full Manipulating dietary protein and amino acids in the common marmoset Callithrix jacchus impacts circulating metabolites and FGF21 levels
title_fullStr Manipulating dietary protein and amino acids in the common marmoset Callithrix jacchus impacts circulating metabolites and FGF21 levels
title_full_unstemmed Manipulating dietary protein and amino acids in the common marmoset Callithrix jacchus impacts circulating metabolites and FGF21 levels
title_short Manipulating dietary protein and amino acids in the common marmoset Callithrix jacchus impacts circulating metabolites and FGF21 levels
title_sort manipulating dietary protein and amino acids in the common marmoset callithrix jacchus impacts circulating metabolites and fgf21 levels
topic Protein restriction
Marmoset
Amino acids
FGF21
url https://doi.org/10.1038/s41598-025-16749-0
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