Cited by 1,106Regulation of Appetite and ObesityGut microbiota and healthAdipose Tissue and Metabolism

Short-chain fatty acids and ketones directly regulate sympathetic nervous system via G protein-coupled receptor 41 (GPR41)

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Kimura, Ikuo, Inoue, Daisuke, Maeda, Takeshi, Hara, Takafumi, Ichimura, Atsuhiko, Miyauchi, Satoshi, Kobayashi, Makio, Hirasawa, Akira +1 more·2011·Proceedings of the National Academy of Sciences

Abstract

The maintenance of energy homeostasis is essential for life, and its dysregulation leads to a variety of metabolic disorders. Under a fed condition, mammals use glucose as the main metabolic fuel, and short-chain fatty acids (SCFAs) produced by the colonic bacterial fermentation of dietary fiber also contribute a significant proportion of daily energy requirement. Under ketogenic conditions such as starvation and diabetes, ketone bodies produced in the liver from fatty acids are used as the main energy sources. To balance energy intake, dietary excess and starvation trigger an increase or a decrease in energy expenditure, respectively, by regulating the activity of the sympathetic nervous system (SNS). The regulation of metabolic homeostasis by glucose is well recognized; however, the roles of SCFAs and ketone bodies in maintaining energy balance remain unclear. Here, we show that SCFAs and ketone bodies directly regulate SNS activity via GPR41, a Gi/o protein-coupled receptor for SCFAs, at the level of the sympathetic ganglion. GPR41 was most abundantly expressed in sympathetic ganglia in mouse and humans. SCFA propionate promoted sympathetic outflow via GPR41. On the other hand, a ketone body, β-hydroxybutyrate, produced during starvation or diabetes, suppressed SNS activity by antagonizing GPR41. Pharmacological and siRNA experiments indicated that GPR41-mediated activation of sympathetic neurons involves Gβγ-PLCβ-MAPK signaling. Sympathetic regulation by SCFAs and ketone bodies correlated well with their respective effects on energy consumption. These findings establish that SCFAs and ketone bodies directly regulate GPR41-mediated SNS activity and thereby control body energy expenditure in maintaining metabolic homeostasis.

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Crossref · 10.1073/pnas.1016088108

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  • The stress-like effect and increased anxiety-like behavior might be explained by FFAR3 expression in the peripheral nervous system, activation of which results in increased sympathetic nervous system activity.

    “This might be explained by the fact that FFAR3 is expressed in the peripheral nervous system, activation of which results in increased sympathetic nervous system activity”

    From The Microbiota-Gut-Brain Axis (2019) · cites this paper as Kimura et al., 2011

  • SCFAs can exert physiological effects in the CNS via two primary mechanisms: activation of G protein-coupled receptors (GPCRs) expressed in the liver, spleen, and large intestine and inhibition of histone deacetylases.

    “SCFAs can exert physiological effects in the CNS via two primary mechanisms: activation of G protein–coupled receptors (GPCRs) expressed in the liver, spleen, and large intestine and inhibition of histone deacetylases (Kimura et al., 2011; Tan et al., 2014b).”

    From Microbiome–microglia connections via the gut–brain axis (2019) · cites this paper as Kimura et al., 2011

  • Acetate, propionate and N-butyrate are mediators of the colonic inflammatory response, stimulate sympathetic nervous system and mucosal serotonin release.

    “Acetate, propionate and N-butyrate are mediators of the colonic inflammatory response [154], stimulate sympathetic nervous system [155] and mucosal serotonin release [156].”

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Authors
Kimura, I., Inoue, D., Maeda, T., Hara, T., Ichimura, A., Miyauchi, S., Kobayashi, M., Hirasawa, A., & Tsujimoto, G.
Affiliations
  • Kyoto University (JP)
  • Tokyo Women's Medical University (JP)
Venue
Proceedings of the National Academy of Sciences
Published
2011-04-25
Volume
108
Issue
19
Pages
8030-8035
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2157201312
Cited by
1,106
References
41
Citations by year
2026: 81 · 2025: 106 · 2024: 102 · 2023: 89 · 2022: 132 · 2021: 124 · 2020: 103 · 2019: 78 · 2018: 66 · 2017: 47 · 2016: 59 · 2015: 34 · 2014: 33 · 2013: 23 · 2012: 22
FWCI
11.71
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion)
  • Kyoto University Research Information Repository (Kyoto University) (submittedVersion)
Funders
  • Kowa Company
  • Ministry of Education, Culture, Sports, Science and Technology
  • Kowa Life Science Foundation
  • Astellas Pharma
  • Astellas Foundation for Research on Metabolic Disorders
  • Japan Society for the Promotion of Science (22790065, 21390021)
  • Japan Science and Technology Agency
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
short-chain fatty acids, ketone bodies, GPR41, sympathetic nervous system, energy homeostasis, energy expenditure, propionate, beta-hydroxybutyrate, sympathetic ganglia, colonic fermentation, starvation, diabetes mellitus, metabolic homeostasis
MeSH terms
Action Potentials, Animals, Base Sequence, Energy Metabolism, Fatty Acids, Volatile, Humans, Ketone Bodies, Mice, Inbred C57BL, Propionates, Sympathetic Nervous System, Signal Transduction, Mice, Knockout, 3-Hydroxybutyric Acid, RNA, Small Interfering, Receptors, G-Protein-Coupled, Mice, Gene Knockdown Techniques, HEK293 Cells

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