- Diabetes, Obesity and Metabolism
- Serotonergic Regulation of Hepatic Energy Metabolism
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Jiwon Park, Wooju Jeong, Chahyeon Yun, Hail Kim, Chang-Myung Oh
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Endocrinol Metab. 2021;36(6):1151-1160. Published online December 16, 2021
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DOI: https://doi.org/10.3803/EnM.2021.1331
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Abstract
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- The liver is a vital organ that regulates systemic energy metabolism and many physiological functions. Nonalcoholic fatty liver disease (NAFLD) is the commonest cause of chronic liver disease and end-stage liver failure. NAFLD is primarily caused by metabolic disruption of lipid and glucose homeostasis. Serotonin (5-hydroxytryptamine [5-HT]) is a biogenic amine with several functions in both the central and peripheral systems. 5-HT functions as a neurotransmitter in the brain and a hormone in peripheral tissues to regulate systemic energy homeostasis. Several recent studies have proposed various roles of 5-HT in hepatic metabolism and inflammation using tissue-specific knockout mice and 5-HT-receptor agonists/antagonists. This review compiles the most recent research on the relationship between 5-HT and hepatic metabolism, and the role of 5-HT signaling as a potential therapeutic target in NAFLD.
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Citations
Citations to this article as recorded by 
- Metabolic and Molecular Response to High-Fat Diet Differs between Rats with Constitutionally High and Low Serotonin Tone
Petra Baković, Maja Kesić, Darko Kolarić, Jasminka Štefulj, Lipa Čičin-Šain International Journal of Molecular Sciences.2023; 24(3): 2169. CrossRef - Serotonin in the regulation of systemic energy metabolism
Joon Ho Moon, Chang‐Myung Oh, Hail Kim Journal of Diabetes Investigation.2022; 13(10): 1639. CrossRef - Involvement of the liver-gut peripheral neural axis in nonalcoholic fatty liver disease pathologies via hepatic HTR2A
Takashi Owaki, Kenya Kamimura, Masayoshi Ko, Itsuo Nagayama, Takuro Nagoya, Osamu Shibata, Chiyumi Oda, Shinichi Morita, Atsushi Kimura, Takeki Sato, Toru Setsu, Akira Sakamaki, Hiroteru Kamimura, Takeshi Yokoo, Shuji Terai Disease Models & Mechanisms.2022;[Epub] CrossRef - Non-alcoholic fatty liver disease (NAFLD) and mental illness: Mechanisms linking mood, metabolism and medicines
Anwesha Gangopadhyay, Radwa Ibrahim, Karli Theberge, Meghan May, Karen L. Houseknecht Frontiers in Neuroscience.2022;[Epub] CrossRef
- Endocrine Research
- Serotonin Regulates De Novo Lipogenesis in Adipose Tissues through Serotonin Receptor 2A
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Ko Eun Shong, Chang-Myung Oh, Jun Namkung, Sangkyu Park, Hail Kim
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Endocrinol Metab. 2020;35(2):470-479. Published online June 24, 2020
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DOI: https://doi.org/10.3803/EnM.2020.35.2.470
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Correction in: Endocrinol Metab 2020;35(3):672
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6,984
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Abstract
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- Background
Obesity is defined as excessive fat mass and is a major cause of many chronic diseases such as diabetes, cardiovascular disease, and cancer. Increasing energy expenditure and regulating adipose tissue metabolism are important targets for the treatment of obesity. Serotonin (5-hydroxytryptophan [5-HT]) is a monoamine metabolite of the essential amino acid tryptophan. Here, we demonstrated that 5-HT in mature adipocytes regulated energy expenditure and lipid metabolism.
Methods Tryptophan hydroxylase 1 (TPH1) is the rate-limiting enzyme during 5-HT synthesis in non-neural peripheral tissues. We generated adipose tissue-specific Tph1 knockout (Tph1 FKO) mice and adipose tissue-specific serotonin receptor 2A KO (Htr2a FKO) mice and analyzed their phenotypes during high-fat diet (HFD) induced obesity.
Results Tph1 FKO mice fed HFD exhibited reduced lipid accumulation, increased thermogenesis, and resistance to obesity. In addition, Htr2a FKO mice fed HFD showed reduced lipid accumulation in white adipose tissue and resistance to obesity.
Conclusion These data suggest that the inhibition of serotonin signaling might be an effective strategy in obesity.
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Citations
Citations to this article as recorded by 
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