American journal of physiology. Endocrinology and metabolism, Promotion of obesity by fibroblast growth factor 21-oxytocin system dysfunction due to sugar-specific hyperphagia., Hajime Mori; Kanako Inoue; Sho Matsui; Yasuo Oguri; Satoshi Tsuzuki; Tsutomu Sasaki, Fibroblast growth factor (FGF) 21 activates oxytocin (OXT) neurons in the hypothalamus and suppresses simple sugar preference; however, alterations in the FGF21-OXT system in obesity remain unclear. In this study, we examined alterations in FGF21 secretion to systemic circulation and FGF21 sensitivity of OXT neurons in obesity, and the effects of FGF21-OXT dysfunction on feeding and body weight regulation. High-fat high-sucrose diet (HFHSD) feeding promoted hypersecretion of FGF21. The administration of recombinant FGF21 to normal diet-fed mice significantly activated OXT neurons in the paraventricular nucleus of the hypothalamus; this response was attenuated in HFHSD-fed mice. OXT neuron-specific FGF21 receptor-deficient (OXT-Klb cKO) mice were used as a model of FGF21-OXT dysfunction. The preference and appetite for sugar and fat were assessed using two-food choice test, two-bottle choice test, and lick microstructure analyses. The cKO mice showed an increased preference and appetite for FGF21-inducing simple sugars but not fat. These mice gained more weight when fed an HFHSD, which caused hyperphagia, but not when fed a high-fat diet. Therefore, obesity causes FGF21-OXT dysfunction, which promotes diet-induced obesity by increasing sugar appetite, suggesting that the dysfunction of the FGF21-OXT system plays a role in the vicious cycle of sugar-based diet-induced obesity in mice.NEW & NOTEWORTHY FGF21 activates OXT neurons and suppresses simple sugar preference, but the relationship between FGF21-OXT system and obesity is unknown. Here, we showed that obesity causes FGF21-OXT dysfunction and promotes sugar appetite and diet-induced obesity, suggesting that there is a vicious cycle of FGF21-OXT dysfunction and obesity in mice., 01 Jul. 2025, 329, 1, E18-E24, Scientific journal, True, 10.1152/ajpendo.00138.2025

Appetite, Exposure to mouse dams to bonito broth during gestation or lactation reduces fat intake in offspring., Shunsuke Fushimi; Sho Matsui; Yasuo Oguri; Satoshi Tsuzuki; Tsutomu Sasaki, Overconsumption of fat contributes to obesity and low adherence to dietary therapy in patients with obesity. The frequency of consuming soup dishes containing "dashi" (Japanese broth), a characteristic element of the Japanese diet, is negatively associated with obesity indicators. The use of dashi is considered one of the reasons why the low-fat Japanese diet is popular; however, whether and how dashi controls the selection and intake of fat is unknown. In this study, we tested the hypothesis that bonito broth, a typical Japanese dashi, affects fat consumption in a mouse model. First, we examined the long-term or short-term intake of corn oil emulsion in adult mice fed bonito broth. No significant effect was observed. Next, mouse dams were fed bonito broth during gestation or lactation and licking of 0.5, 1, 2.5, 5, and 10% corn oil in their adult pups was evaluated in acute tests. Compared to the control group, there were significant decreases in licks for some corn oil concentrations in the gestation and lactation groups. Finally, corn oil licking was tested in pups fed bonito broth after weaning. No significant effect was detected. This study suggests that dams' intake of bonito broth during gestation or lactation reduces the intake of fat by their pups in adulthood., 24 Dec. 2024, 206, 107836, 107836, Scientific journal, True, 10.1016/j.appet.2024.107836

American journal of physiology. Endocrinology and metabolism, Medium-Chain Triglycerides-Specific Appetite is Regulated by the β-oxidation of Medium-Chain Fatty Acids in the Liver., Tsugunori Maruyama; Sho Matsui; Ryosuke Kobayashi; Takuro Horii; Yasuo Oguri; Satoshi Tsuzuki; Takahiro Horie; Koh Ono; Izuho Hatada; Tsutomu Sasaki, Most studies on fat appetite have focused on long-chain triglycerides (LCTs) due to their obesogenic properties. Medium-chain triglycerides (MCTs), conversely, exhibit anti-obesogenic effects; however, the regulation of MCTs intake remains elusive. Here, we demonstrate that mice can distinguish between MCTs and LCTs, and the specific appetite for MCTs is governed by hepatic β-oxidation. We generated liver-specific medium-chain acyl-CoA dehydrogenase (MCAD)-deficient (MCADL-/-) mice and analyzed their preference for MCTs and LCTs solutions using glyceryl trioctanoate (C8-TG), glyceryl tridecanoate (C10-TG), corn oil, and lard oil in two-bottle choice tests conducted over 8 days. Additionally, we employed lick microstructure analyses to evaluate the palatability and appetite for MCTs and LCTs solutions. Finally, we measured the expression levels of genes associated with fat ingestion (Galanin, Qrfp, and Nmu) in the hypothalamus 2 h after oral gavage of fat. Compared to control mice, MCADL-/- mice exhibited a significantly reduced preference for MCTs solutions, with no alteration in the preference for LCTs. Lick analysis revealed that MCADL-/- mice displayed a significantly decreased appetite for MCTs solutions only, while the palatability of both MCTs and LCTs solutions remained unaffected. Hypothalamic Galanin expression in control mice was elevated by oral gavage of C8-TG but not by LCTs, and this response was abrogated in MCADL-/- mice. In summary, our data suggest that hepatic β-oxidation is required for MCTs-specific appetite but not for LCTs-specific appetite. The induction of hypothalamic galanin upon MCTs ingestion, dependent on hepatic beta-oxidation, could be involved in the regulation of MCTs-specific appetite., 10 Apr. 2024, Scientific journal, True, 10.1152/ajpendo.00031.2024

Developmental cell, Lipolysis-derived linoleic acid drives beige fat progenitor cell proliferation., Ichitaro Abe; Yasuo Oguri; Anthony R P Verkerke; Lauar B Monteiro; Carly M Knuth; Christopher Auger; Yunping Qiu; Gregory P Westcott; Saverio Cinti; Kosaku Shinoda; Marc G Jeschke; Shingo Kajimura, De novo beige adipocyte biogenesis involves the proliferation of progenitor cells in white adipose tissue (WAT); however, what regulates this process remains unclear. Here, we report that in mouse models but also in human tissues, WAT lipolysis-derived linoleic acid triggers beige progenitor cell proliferation following cold acclimation, β3-adrenoceptor activation, and burn injury. A subset of adipocyte progenitors, as marked by cell surface markers PDGFRα or Sca1 and CD81, harbored cristae-rich mitochondria and actively imported linoleic acid via a fatty acid transporter CD36. Linoleic acid not only was oxidized as fuel in the mitochondria but also was utilized for the synthesis of arachidonic acid-derived signaling entities such as prostaglandin D2. Oral supplementation of linoleic acid was sufficient to stimulate beige progenitor cell proliferation, even under thermoneutral conditions, in a CD36-dependent manner. Together, this study provides mechanistic insights into how diverse pathophysiological stimuli, such as cold and burn injury, promote de novo beige fat biogenesis., 05 Dec. 2022, 57, 23, 2623, 2637, Scientific journal, True, 10.1016/j.devcel.2022.11.007

EBioMedicine, Liver autophagy-induced valine and leucine in plasma reflect the metabolic effect of sodium glucose co-transporter 2 inhibitor dapagliflozin., Futoshi Furuya; Yoshihito Fujita; Naomi Matsuo; Hiroto Minamino; Yasuo Oguri; Nozomi Isomura; Kaori Ikeda; Kohei Takesue; Ying Li; Aki Kondo; Fumika Mano; Nobuya Inagaki, BACKGROUND: Sodium glucose co-transporter 2 (SGLT2) inhibitors are anti-diabetic drugs for type 2 diabetes that lower blood glucose levels and body weight. It is of special interest that SGLT2 inhibitors also improve liver metabolism and fatty liver. Liver is an important organ in regulation of energy metabolism, but the metabolic action of SGLT inhibitors in liver remains unclear. METHODS: We investigated the factors associated with the beneficial effects of dapagliflozin, a SGLT2 inhibitor, in the liver after confirming its glucose-lowering and weight loss effects using an obesity and diabetes mouse model. We also performed clinical study of patients with type 2 diabetes to explore candidate biomarkers that reflect the beneficial action of dapagliflozin in the liver. FINDINGS: In animal study, dapagliflozin induced autophagy in the liver (LC3-II to LC3-I expression ratio: P < 0·05 vs. control), and valine and leucine levels were increased in plasma (P < 0·01 vs. control) as well as in liver (P < 0·05 vs. control). Thus, increased plasma valine and leucine levels are potential biomarkers for improved liver metabolism. Clinical study found that valine and leucine levels were markedly higher in patients treated with dapagliflozin (valine: P < 0·05 vs. control, leucine: P < 0·01 vs. control) than those not treated after one week intervention. INTERPRETATION: Dapagliflozin improves liver metabolism via hepatic autophagy, and plasma valine and leucine levels may reflect its metabolic effect. FUNDING: AstraZeneca K.K., Ono Pharmaceutical Co., Ltd., Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan Society for the Promotion of Science (JSPS), Japan Agency for Medical Research and Development (AMED), Novo Nordisk Pharma Ltd., and Japan Foundation for Applied Enzymology, and MSD Life Science Foundation International., 21 Nov. 2022, 86, 104342, 104342, Scientific journal, True, 10.1016/j.ebiom.2022.104342

Arthritis research & therapy, Urinary sodium-to-potassium ratio associates with hypertension and current disease activity in patients with rheumatoid arthritis: a cross-sectional study., Hiroto Minamino; Masao Katsushima; Motomu Hashimoto; Yoshihito Fujita; Tamami Yoshida; Kaori Ikeda; Nozomi Isomura; Yasuo Oguri; Wataru Yamamoto; Ryu Watanabe; Kosaku Murakami; Koichi Murata; Kohei Nishitani; Masao Tanaka; Hiromu Ito; Koichiro Ohmura; Shuichi Matsuda; Nobuya Inagaki; Akio Morinobu, BACKGROUND: Excessive salt intake is thought to exacerbate both development of hypertension and autoimmune diseases in animal models, but the clinical impact of excessive salt in rheumatoid arthritis (RA) patients is still unknown. We performed a cross-sectional study to clarify the associations between salt load index (urinary sodium-to-potassium ratio (Na/K ratio)), current disease activity, and hypertension in an RA population. METHODS: Three hundred thirty-six participants from our cohort database (KURAMA) were enrolled. We used the spot urine Na/K ratio as a simplified index of salt loading and used the 28-Joint RA Disease Activity Score (DAS28-ESR) as an indicator of current RA disease activity. Using these indicators, we evaluated statistical associations between urinary Na/K ratio, DAS28-ESR, and prevalence of hypertension. RESULTS: Urinary Na/K ratio was positively associated with measured systolic and diastolic blood pressure and also with prevalence of hypertension even after covariate adjustment (OR 1.34, p <  0.001). In addition, increased urinary Na/K ratio was significantly and positively correlated with DAS28-ESR in multiple regression analysis (estimate 0.12, p <  0.001), as was also the case in gender-separated and prednisolone-separated sub-analyses. CONCLUSION: Urinary Na/K ratio was independently associated with current disease activity as well as with prevalence of hypertension in RA patients. Thus, dietary modifications such as salt restriction and potassium supplementation should be investigated as a potential candidate for attenuating both disease activity and hypertension in RA patients., 27 Mar. 2021, 23, 1, 96, 96, Scientific journal, True, 10.1186/s13075-021-02479-x

Nature metabolism, The major cap-binding protein eIF4E regulates lipid homeostasis and diet-induced obesity., Crystal S Conn; Haojun Yang; Harrison J Tom; Kenji Ikeda; Juan A Oses-Prieto; Hieu Vu; Yasuo Oguri; Supna Nair; Ryan M Gill; Shingo Kajimura; Ralph J DeBerardinis; Alma L Burlingame; Davide Ruggero, Obesity is a global epidemic leading to increased mortality and susceptibility to comorbidities, with few viable therapeutic interventions. A hallmark of disease progression is the ectopic deposition of lipids in the form of lipid droplets in vital organs such as the liver. However, the mechanisms underlying the dynamic storage and processing of lipids in peripheral organs remain an outstanding question. Here, we show an unexpected function for the major cap-binding protein, eIF4E, in high-fat-diet-induced obesity. In response to lipid overload, select networks of proteins involved in fat deposition are altered in eIF4E-deficient mice. Specifically, distinct messenger RNAs involved in lipid metabolic processing and storage pathways are enhanced at the translation level by eIF4E. Failure to translationally upregulate these mRNAs results in increased fatty acid oxidation, which enhances energy expenditure. We further show that inhibition of eIF4E phosphorylation genetically-and by a potent clinical compound-restrains weight gain following intake of a high-fat diet. Together, our study uncovers translational control of lipid processing as a driver of high-fat-diet-induced weight gain and provides a pharmacological target to treat obesity., Feb. 2021, 3, 2, 244, 257, Scientific journal, True, 10.1038/s42255-021-00349-z

PloS one, Influence of dietary habits on depression among patients with rheumatoid arthritis: A cross-sectional study using KURAMA cohort database., Hiroto Minamino; Masao Katsushima; Motomu Hashimoto; Yoshihito Fujita; Mie Torii; Kaori Ikeda; Nozomi Isomura; Yasuo Oguri; Wataru Yamamoto; Ryu Watanabe; Kosaku Murakami; Koichi Murata; Kohei Nishitani; Masao Tanaka; Hiromu Ito; Miyabi Uda; Kazuko Nin; Hidenori Arai; Shuichi Matsuda; Akio Morinobu; Nobuya Inagaki, OBJECTIVE: Although mental disorder is one of the most common comorbidities of rheumatoid arthritis (RA) and is known as a critical influence on RA remission rates, there is little knowledge regarding a possible therapeutic strategy for depression or anxiety in a RA population. Most recently, clinical evidence of dietary improvement for depression has emerged in a general population, but the relationship between dietary habits and mental disorder has not been investigated in RA. The purpose of this study is to elucidate clinical associations between mental disorder (depression/anxiety), dietary habits and disease activity/physical function in patients with RA. METHODS: A cross-sectional study was performed with 267 female outpatients from the KURAMA database. Using the Hospital Anxiety and Depression Scale (HADS), we classified the participants into three groups by depression state, and their characteristics were compared. Using the 20-items on the self-reported food frequency questionnaire, we investigated the relationship between dietary habits and depression or anxiety, adopting a trend test and a multivariate standardized linear regression analysis for the HADS score of depression or that of anxiety as a dependent variable. RESULTS: According to the classified stage of depression, current disease activity (DAS28-CRP: 28-Joint RA Disease Activity Score-C-reactive protein) and the health assessment questionnaire disability Index (HAQ-DI) were significantly increased. Trend analyses revealed that the depression score was inversely associated with the consumption of three food (fish, vegetables and fruit) out of twenty as was the anxiety score with only fish intake. Furthermore, multiple linear regression analysis revealed that the depression score was negatively associated with frequent fish intake (≥ 3 times per week) (Estimate -0.53, p = 0.033), HAQ-DI score within normal range (Estimate -0.88, p ≤ 0.001) and MTX use (Estimate -0.60, p ≤ 0.023). For the anxiety score, multivariate analysis showed similar but not significant associations with variables except for HAQ-DI score. CONCLUSIONS: In a RA population, both depression and anxiety had a significant and negative association with HAQ-DI score, and depression rather than anxiety had negative association with frequent fish intake. Modification of dietary habits such as increased fish consumption may have a beneficial effect on the depression state in RA patients., 2021, 16, 8, e0255526, Scientific journal, True, 10.1371/journal.pone.0255526

EMBO reports, The regulation of glucose and lipid homeostasis via PLTP as a mediator of BAT-liver communication., Carlos H Sponton; Takashi Hosono; Junki Taura; Mark P Jedrychowski; Takeshi Yoneshiro; Qiang Wang; Makoto Takahashi; Yumi Matsui; Kenji Ikeda; Yasuo Oguri; Kazuki Tajima; Kosaku Shinoda; Rachana N Pradhan; Yong Chen; Zachary Brown; Lindsay S Roberts; Carl C Ward; Hiroki Taoka; Yoko Yokoyama; Mitsuhiro Watanabe; Hiroshi Karasawa; Daniel K Nomura; Shingo Kajimura, While brown adipose tissue (BAT) is well-recognized for its ability to dissipate energy in the form of heat, recent studies suggest multifaced roles of BAT in the regulation of glucose and lipid homeostasis beyond stimulating thermogenesis. One of the functions involves interorgan communication with metabolic organs, such as the liver, through BAT-derived secretory factors, a.k.a., batokine. However, the identity and the roles of such mediators remain insufficiently understood. Here, we employed proteomics and transcriptomics in human thermogenic adipocytes and identified previously unappreciated batokines, including phospholipid transfer protein (PLTP). We found that increased circulating levels of PLTP, via systemic or BAT-specific overexpression, significantly improve glucose tolerance and insulin sensitivity, increased energy expenditure, and decrease the circulating levels of cholesterol, phospholipids, and sphingolipids. Such changes were accompanied by increased bile acids in the circulation, which in turn enhances glucose uptake and thermogenesis in BAT. Our data suggest that PLTP is a batokine that contributes to the regulation of systemic glucose and lipid homeostasis as a mediator of BAT-liver interorgan communication., 03 Sep. 2020, 21, 9, e49828, Scientific journal, True, 10.15252/embr.201949828

Nature communications, TET1 is a beige adipocyte-selective epigenetic suppressor of thermogenesis., Sneha Damal Villivalam; Dongjoo You; Jinse Kim; Hee Woong Lim; Han Xiao; Pete-James H Zushin; Yasuo Oguri; Pouya Amin; Sona Kang, It has been suggested that beige fat thermogenesis is tightly controlled by epigenetic regulators that sense environmental cues such as temperature. Here, we report that subcutaneous adipose expression of the DNA demethylase TET1 is suppressed by cold and other stimulators of beige adipocyte thermogenesis. TET1 acts as an autonomous repressor of key thermogenic genes, including Ucp1 and Ppargc1a, in beige adipocytes. Adipose-selective Tet1 knockout mice generated by using Fabp4-Cre improves cold tolerance and increases energy expenditure and protects against diet-induced obesity and insulin resistance. Moreover, the suppressive role of TET1 in the thermogenic gene regulation of beige adipocytes is largely DNA demethylase-independent. Rather, TET1 coordinates with HDAC1 to mediate the epigenetic changes to suppress thermogenic gene transcription. Taken together, TET1 is a potent beige-selective epigenetic breaker of the thermogenic gene program. Our findings may lead to a therapeutic strategy to increase energy expenditure in obesity and related metabolic disorders., 27 Aug. 2020, 11, 1, 4313, 4313, Scientific journal, True, 10.1038/s41467-020-18054-y

Cell, CD81 Controls Beige Fat Progenitor Cell Growth and Energy Balance via FAK Signaling., Yasuo Oguri; Kosaku Shinoda; Hyeonwoo Kim; Diana L Alba; W Reid Bolus; Qiang Wang; Zachary Brown; Rachana N Pradhan; Kazuki Tajima; Takeshi Yoneshiro; Kenji Ikeda; Yong Chen; Rachel T Cheang; Kazuyuki Tsujino; Caroline R Kim; Vanille Juliette Greiner; Ritwik Datta; Christopher D Yang; Kamran Atabai; Michael T McManus; Suneil K Koliwad; Bruce M Spiegelman; Shingo Kajimura, Adipose tissues dynamically remodel their cellular composition in response to external cues by stimulating beige adipocyte biogenesis; however, the developmental origin and pathways regulating this process remain insufficiently understood owing to adipose tissue heterogeneity. Here, we employed single-cell RNA-seq and identified a unique subset of adipocyte progenitor cells (APCs) that possessed the cell-intrinsic plasticity to give rise to beige fat. This beige APC population is proliferative and marked by cell-surface proteins, including PDGFRα, Sca1, and CD81. Notably, CD81 is not only a beige APC marker but also required for de novo beige fat biogenesis following cold exposure. CD81 forms a complex with αV/β1 and αV/β5 integrins and mediates the activation of integrin-FAK signaling in response to irisin. Importantly, CD81 loss causes diet-induced obesity, insulin resistance, and adipose tissue inflammation. These results suggest that CD81 functions as a key sensor of external inputs and controls beige APC proliferation and whole-body energy homeostasis., 06 Aug. 2020, 182, 3, 563, 577, Scientific journal, True, 10.1016/j.cell.2020.06.021

Nature communications, Wireless optogenetics protects against obesity via stimulation of non-canonical fat thermogenesis., Kazuki Tajima; Kenji Ikeda; Yuji Tanabe; Ella A Thomson; Takeshi Yoneshiro; Yasuo Oguri; Marc D Ferro; Ada S Y Poon; Shingo Kajimura, Cold stimuli and the subsequent activation of β-adrenergic receptor (β-AR) potently stimulate adipose tissue thermogenesis and increase whole-body energy expenditure. However, systemic activation of the β3-AR pathway inevitably increases blood pressure, a significant risk factor for cardiovascular disease, and, thus, limits its application for the treatment of obesity. To activate fat thermogenesis under tight spatiotemporal control without external stimuli, here, we report an implantable wireless optogenetic device that bypasses the β-AR pathway and triggers Ca2+ cycling selectively in adipocytes. The wireless optogenetics stimulation in the subcutaneous adipose tissue potently activates Ca2+ cycling fat thermogenesis and increases whole-body energy expenditure without cold stimuli. Significantly, the light-induced fat thermogenesis was sufficient to protect mice from diet-induced body-weight gain. The present study provides the first proof-of-concept that fat-specific cold mimetics via activating non-canonical thermogenesis protect against obesity., 07 Apr. 2020, 11, 1, 1730, 1730, Scientific journal, True, 10.1038/s41467-020-15589-y

The Journal of clinical investigation, Cellular heterogeneity in brown adipose tissue., Yasuo Oguri; Shingo Kajimura, Brown adipose tissue (BAT) contains mitochondria-enriched thermogenic fat cells (brown adipocytes) that play a crucial role in the regulation of energy metabolism and systemic glucose homeostasis. It was presumed that brown adipocytes are composed of a homogeneous cell population. In this issue of the JCI, however, Song and colleagues report a previously uncharacterized subpopulation of brown adipocytes that display distinct characteristics from the conventional brown adipocytes in their molecular signature, regulation, and fuel utilization. The present study provides novel insight into our understanding of cellular heterogeneity in adipose tissues., 02 Jan. 2020, 130, 1, 65, 67, Scientific journal, True, 10.1172/JCI133786

Nature metabolism, Mitochondrial lipoylation integrates age-associated decline in brown fat thermogenesis., Kazuki Tajima; Kenji Ikeda; Hsin-Yi Chang; Chih-Hsiang Chang; Takeshi Yoneshiro; Yasuo Oguri; Heejin Jun; Jun Wu; Yasushi Ishihama; Shingo Kajimura, Thermogenesis in brown adipose tissue (BAT) declines with age; however, what regulates this process remains poorly understood. Here, we identify mitochondria lipoylation as a previously unappreciated molecular hallmark of aged BAT in mice. Using mitochondrial proteomics, we show that mitochondrial lipoylation is disproportionally reduced in aged BAT through a post-transcriptional decrease in the iron-sulfur (Fe-S) cluster formation pathway. A defect in the Fe-S cluster formation by the fat-specific deletion of Bola3 significantly reduces mitochondrial lipoylation and fuel oxidation in BAT, leading to glucose intolerance and obesity. In turn, enhanced mitochondrial lipoylation by α-lipoic acid supplementation effectively restores BAT function in old mice, thereby preventing age-associated obesity and glucose intolerance. The effect of α-lipoic acids requires mitochondrial lipoylation via the Bola3 pathway and does not depend on the anti-oxidant activity of α-lipoic acid. These results open up the possibility to alleviate the age-associated decline in energy expenditure by enhancing the mitochondrial lipoylation pathway., Sep. 2019, 1, 9, 886, 898, Scientific journal, True, 10.1038/s42255-019-0106-z

Nature, BCAA catabolism in brown fat controls energy homeostasis through SLC25A44., Takeshi Yoneshiro; Qiang Wang; Kazuki Tajima; Mami Matsushita; Hiroko Maki; Kaori Igarashi; Zhipeng Dai; Phillip J White; Robert W McGarrah; Olga R Ilkayeva; Yann Deleye; Yasuo Oguri; Mito Kuroda; Kenji Ikeda; Huixia Li; Ayano Ueno; Maki Ohishi; Takamasa Ishikawa; Kyeongkyu Kim; Yong Chen; Carlos Henrique Sponton; Rachana N Pradhan; Homa Majd; Vanille Juliette Greiner; Momoko Yoneshiro; Zachary Brown; Maria Chondronikola; Haruya Takahashi; Tsuyoshi Goto; Teruo Kawada; Labros Sidossis; Francis C Szoka; Michael T McManus; Masayuki Saito; Tomoyoshi Soga; Shingo Kajimura, Branched-chain amino acid (BCAA; valine, leucine and isoleucine) supplementation is often beneficial to energy expenditure; however, increased circulating levels of BCAA are linked to obesity and diabetes. The mechanisms of this paradox remain unclear. Here we report that, on cold exposure, brown adipose tissue (BAT) actively utilizes BCAA in the mitochondria for thermogenesis and promotes systemic BCAA clearance in mice and humans. In turn, a BAT-specific defect in BCAA catabolism attenuates systemic BCAA clearance, BAT fuel oxidation and thermogenesis, leading to diet-induced obesity and glucose intolerance. Mechanistically, active BCAA catabolism in BAT is mediated by SLC25A44, which transports BCAAs into mitochondria. Our results suggest that BAT serves as a key metabolic filter that controls BCAA clearance via SLC25A44, thereby contributing to the improvement of metabolic health., Aug. 2019, 572, 7771, 614, 619, Scientific journal, True, 10.1038/s41586-019-1503-x

JCI insight, Tetrahydrobiopterin activates brown adipose tissue and regulates systemic energy metabolism., Yasuo Oguri; Yoshihito Fujita; Abulizi Abudukadier; Akiko Ohashi; Tsuyoshi Goto; Futoshi Furuya; Akio Obara; Toru Fukushima; Naomi Matsuo; Minji Kim; Masaya Hosokawa; Teruo Kawada; Hiroyuki Hasegawa; Nobuya Inagaki, Brown adipose tissue (BAT) is a central organ that acts to increase energy expenditure; its regulatory factors could be clinically useful in the treatment of obesity. Tetrahydrobiopterin (BH4) is an essential cofactor of tyrosine hydroxylase and nitric oxide synthase (NOS). Although BH4 regulates the known regulatory factors of BAT, such as noradrenaline (NA) and NO, participation of BH4 in BAT function remains unclear. In the present study, we investigate the role of BH4 in the regulation of BAT. Hph-1 mice, a mouse model of BH4 deficiency, exhibit obesity, adiposity, glucose intolerance, insulin resistance, and impaired BAT function. Impaired BAT function was ameliorated together with systemic metabolic disturbances by BAT transplantation from BH4-sufficient mice (control mice) into BH4-deficient mice, strongly suggesting that BH4-induced BAT has a critical role in the regulation of systemic energy metabolism. Both NA derived from the sympathetic nerve and NO derived from endothelial NOS in the blood vessels participate in the regulation of BH4. In addition, a direct effect of BH4 in the stimulation of brown adipocytes via NO is implicated. Taken together, BH4 activates BAT and regulates systemic energy metabolism; this suggests an approach for metabolic disorders, such as obesity and diabetes., 04 May 2017, 2, 9, Scientific journal, True, 10.1172/jci.insight.91981

Journal of diabetes investigation, Carbohydrate intake is associated with time spent in the euglycemic range in patients with type 1 diabetes., Shiho Ayano-Takahara; Kaori Ikeda; Shimpei Fujimoto; Kanae Asai; Yasuo Oguri; Shin-Ichi Harashima; Hidemi Tsuji; Kenichiro Shide; Nobuya Inagaki, AIMS/INTRODUCTION: Greater glycemic variability and lack of predictability are important issues for patients with type 1 diabetes. Dietary factors are one of the contributors to this variability, but how closely diet is linked to glycemic fluctuation on a daily basis has not been investigated. We examined the association between carbohydrate intake and glycemic excursion in outpatients. MATERIALS AND METHODS: A total of 33 patients with type 1 diabetes were included in the analyses (age 44.5 ± 14.7 years, diabetes duration 15.1 ± 8.3 years, 64% female, 30% using insulin pump, glycated hemoglobin 8.1 ± 1.3%). Time spent in euglycemia (70-180 mg/dL), hyperglycemia (>180 mg/dL) and hypoglycemia (<70 mg/dL) of consecutive 48-h periods of continuous glucose monitoring data were collected together with simultaneous records of dietary intake, insulin dose and physical activity. Correlation analyses and multiple regression analyses were used to evaluate the contribution of carbohydrate intake to time spent in the target glycemic range. RESULTS: In multiple regression analyses, carbohydrate intake (β = 0.53, P = 0.001), basal insulin dose per kg per day (β = -0.31, P = 0.034) and diabetes duration (β = 0.30, P = 0.042) were independent predictors of time spent in euglycemia. Carbohydrate intake (β = -0.51, P = 0.001) and insulin pump use (β = -0.34, P = 0.024) were independent predictors of time spent in hyperglycemia. Insulin pump use (β = 0.52, P < 0.001) and bolus insulin dose per kg per day (β = 0.46, P = 0.001) were independent predictors of time spent in hypoglycemia. CONCLUSIONS: Carbohydrate intake is associated with time spent in euglycemia in patients with type 1 diabetes., Nov. 2015, 6, 6, 678, 86, Scientific journal, False, 10.1111/jdi.12360

Biochemical and biophysical research communications, DEPTOR-related mTOR suppression is involved in metformin's anti-cancer action in human liver cancer cells., Akio Obara; Yoshihito Fujita; Abulizi Abudukadier; Toru Fukushima; Yasuo Oguri; Masahito Ogura; Shin-Ichi Harashima; Masaya Hosokawa; Nobuya Inagaki, Metformin, one of the most commonly used drugs for patients with type 2 diabetes, recently has received much attention regarding its anti-cancer action. It is thought that the suppression of mTOR signaling is involved in metformin's anti-cancer action. Although liver cancer is one of the most responsive types of cancer for reduction of incidence by metformin, the molecular mechanism of the suppression of mTOR in liver remains unknown. In this study, we investigated the mechanism of the suppressing effect of metformin on mTOR signaling and cell proliferation using human liver cancer cells. Metformin suppressed phosphorylation of p70-S6 kinase, and ribosome protein S6, downstream targets of mTOR, and suppressed cell proliferation. We found that DEPTOR, an endogenous substrate of mTOR suppression, is involved in the suppressing effect of metformin on mTOR signaling and cell proliferation in human liver cancer cells. Metformin increases the protein levels of DEPTOR, intensifies binding to mTOR, and exerts a suppressing effect on mTOR signaling. This increasing effect of DEPTOR by metformin is regulated by the proteasome degradation system; the suppressing effect of metformin on mTOR signaling and cell proliferation is in a DEPTOR-dependent manner. Furthermore, metformin exerts a suppressing effect on proteasome activity, DEPTOR-related mTOR signaling, and cell proliferation in an AMPK-dependent manner. We conclude that DEPTOR-related mTOR suppression is involved in metformin's anti-cancer action in liver, and could be a novel target for anti-cancer therapy., 15 May 2015, 460, 4, 1047, 52, Scientific journal, True, 10.1016/j.bbrc.2015.03.148

International journal of food sciences and nutrition, The effect of fast eating on the thermic effect of food in young Japanese women., Kenji Toyama; Xifan Zhao; Sachi Kuranuki; Yasuo Oguri; Eriko Kashiwa Kato; Yutaka Yoshitake; Teiji Nakamura, The relationship between eating speed and the thermic effect of food (TEF) remains unclear. We investigated the difference in the TEF when meals containing the same amount of energy were eaten in 5 min (fast eating) or 15 min (regular eating). Subjects were nine non-obese young women. Following a 350 kcal (1464 kJ) meal, energy expenditure and autonomic nervous system activity were measured. The frequency of mastication was also calculated. The TEF for the 15-min period after the start of eating with fast eating was significantly lower than with regular eating (p < 0.01). There was a significant positive correlation between the low-frequency/high-frequency ratio and TEF at 5-min intervals up to 20 min after the start of eating and between total mastication frequency and TEF during ingestion. Fast eating may reduce the TEF, potentially because a decrease in mastication frequency decreases sympathetic nervous system activity., Mar. 2015, 66, 2, 140, 7, Scientific journal, True, 10.3109/09637486.2014.986069

Mar. 2025, 2, 36, 40

Feb. 2025, 126, 138

Feb. 2025, 45, 76

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Regulatory Mechanisms of Beige Fat Progenitor Cells, May 2023, 40, 5, 5762

May 2023, 99, 1, 383, 383

Mar. 2023, 77回, 235, 235

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Feb. 2023, 85, 1, 42, 46

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May 2022, 76回, 258, 258

May 2022, 76回, 307, 307

Apr. 2022, 98, 1, 272, 272

Mar. 2022, 27, Suppl., 221, 221

Mar. 2022, 27, Suppl., 298, 298

2022, 4, Suppl.1, 13, 13

日本生化学会大会プログラム・講演要旨集, (公社)日本生化学会, 先端生命科学技術による生命現象の理解と制御(CD81 Controls Beige Fat Progenitor Cell Growth and Energy Balance), 小栗 靖生; 佐々木 努; 梶村 真吾, Nov. 2021, 94回, [2S03m, 04]

Jul. 2021, 75回, 36, 36

Jul. 2021, 75回, 144, 144

Apr. 2021, 97, 1, 244, 244

Mar. 2021, 39, 5, 641, 647

2021, 515th

2021, 516th

日本分子生物学会年会プログラム・要旨集(Web), Regulatory mechanism of beige fat biogenesis via CD81, 2021, 44th

Nov. 2020, 34, Suppl.1, 301, 301

Aug. 2020, 96, 1, 232, 232

Aug. 2020, 63, Suppl.1, S, 114

DIABETES, Maternal Supplementation of Tetrahydrobiopterin Regulates Differentiation of Fetal Brown Adipose Tissue and Contributes to Offspring Metabolic Health, Hiroto Minamino; Yoshihito Fujita; Yasuo Oguri; Tsuyoshi Goto; Akiko Ohashi; Futoshi Furuya; Nozomi Isomura; Takesue Kohei; Ying Li; Satoko Kawarasaki; Teruo Kawada; Hiroyuki Hasegawa; Nobuya Inagaki, Jun. 2020, 69, Summary international conference, 10.2337/db20-1710-P

Jan. 2020, 23, Suppl., S, 4

DIABETES, Tetrahydrobiopterin Regulates Developmental Differentiation of Brown Adipose Tissue, Hiroto Minamino; Yoshihito Fujita; Yasuo Oguri; Tsuyoshi Goto; Akiko Ohashi; Futoshi Furuya; Nozomi Isomura; Satoko Kawarasaki; Teruo Kawada; Hiroyuki Hasegawa; Nobuya Inagaki, Jun. 2019, 68, Summary international conference, 10.2337/db19-1760-P

Apr. 2019, 62, Suppl.1, S, 101

Diabetes, American Diabetes Association, The Different Effects of Sodium Glucose Cotransporter 2 Inhibitor on Obese Diabetic Mice Fed a Normal or Low-Carbohydrate Diet, FUTOSHI FURUYA; YOSHIHITO FUJITA; NAOMI MATSUO; YASUO OGURI; HIROTO MINAMINO; KAORI IKEDA; SHINICHI HARASHIMA; YU WANG; YANYAN LIU; NOBUYA INAGAKI, May 2018, 67, Supplement 1, 1894, P, 10.2337/db18-1894-p

Not Refereed, 糖尿病(Web), (一社)日本糖尿病学会, SGLT2阻害薬の肝臓における代謝動態への影響および効果発現に寄与する因子の解明, 古谷太志; 藤田義人; 松尾奈緒美; 小栗靖生; 南野寛人; 王宇; 劉彦言; 池田香織; 原島伸一; 稲垣暢也, Apr. 2018, 61, Suppl, S.230(J‐STAGE), 230

Apr. 2018, 61, Suppl.1, S, 230

Apr. 2018, 61, Suppl.1, S, 266

2018, 8, 2, 68, 69

2018, 32nd

Jan. 2018, 21, Suppl., S, 70

Jan. 2018, 21, Suppl., S, 71

Sep. 2017, 33, 2, 182, 182

Not Refereed, 糖尿病(Web), (一社)日本糖尿病学会, SGLT2阻害薬投与及び低炭水化物食が与える糖尿病肥満モデル動物の肝臓糖・脂質・エネルギー代謝への影響, 古谷太志; 藤田義人; 松尾奈緒美; 小栗靖生; 池田香織; 原島伸一; 王宇; 劉彦言; 稲垣暢也, Apr. 2017, 60, Suppl, S.495(J‐STAGE), 495

Apr. 2017, 60, Suppl.1, S, 137

Apr. 2017, 60, Suppl.1, S, 495

Dec. 2016, 20, Suppl., S, 69

Sep. 2016, 22, Suppl., 171, 171

Not Refereed, 糖尿病(Web), (一社)日本糖尿病学会, 糖尿病肥満モデル動物に対するPair feeding条件下でのSGLT2阻害薬投与による代謝への影響, 古谷太志; 藤田義人; 松尾奈緒美; 小栗靖生; 池田香織; 原島伸一; 王宇; 劉彦言; 稲垣暢也, Apr. 2016, 59, Suppl, S.430(J‐STAGE), 430

Not Refereed, 日本病態栄養学会誌, (一社)日本病態栄養学会, 糖尿病、脂質異常症、高血圧、肥満症の日米欧ガイドラインにおける食事推奨内容の比較, 真能 芙美香; 池田 香織; 城尾 恵里奈; 小栗 靖生; 村田 由貴; 鬼頭 久美子; 鈴木 望; 太田 はるか; 中山 健夫; 稲垣 暢也, Apr. 2016, 19, 1, 99, 109

Apr. 2016, 19, 1, 99, 109

Apr. 2016, 59, Suppl.1, S, 156

Apr. 2016, 59, Suppl.1, S, 162

Apr. 2016, 59, Suppl.1, S, 184

Apr. 2016, 59, Suppl.1, S, 430

Dec. 2015, 19, Suppl., S, 101

Nov. 2015, 29, Suppl.1, 145, 145

Sep. 2015, 31, 2, 128, 128

Refereed, DIABETES, Novel Role of eNOS Co-factor Tetrahydrobiopterin for Mitochondrial Regulation in Adiposity and Energy Homeostasis, Yasuo Oguri; Yoshihito Fujita; Abulizi Abdukadier; Akio Obara; Akiko Ohashi; Futoshi Furuya; Toru Fukushima; Hiroyuki Hasegawa; Masaya Hosokawa; Nobuya Inagaki, Jun. 2015, 64, A539, A539, Summary international conference

Apr. 2015, 58, Suppl.1, S, 484

Apr. 2015, 58, Suppl.1, S, 488

Dec. 2014, 18, Suppl., S, 71

Dec. 2014, 18, Suppl., S, 106

Sep. 2014, 28, Suppl.1, 142, 142

Not Refereed, DIABETES, DEPTOR, an Inhibitory Protein of mTOR, Contributes to Both Anti-cancer and Antidiabetic Effects of Metformin in Liver, Akio Obara; Yoshihito Fujita; Abulizi Abudukadier; Toru Fukushima; Yasuo Oguri; Masaya Hosokawa; Nobuya Inagaki, Jun. 2014, 63, A459, A459, Summary international conference

Apr. 2014, 57, Suppl.1, S, 120

Sep. 2013, 29, 2, 131, 131

Jun. 2013, 36, 6, 490, 496

Sep. 2012, 18, Suppl., 165, 165

Sep. 2012, 28, 2, 172, 172

Sep. 2012, 28, 2, 176, 176

Jun. 2012, 12回, 174, 174

Apr. 2012, 55, Suppl.1, S, 84

Apr. 2012, 66回, 218, 218

Mar. 2012, 4, 2, 32, 39

2012, 55, 11, 17, 18

Sep. 2011, 17, Suppl., 139, 139

Apr. 2011, 65回, 229, 229

Sep. 2010, 40, 9, 983, 987

Sep. 2010, 16, Suppl., 167, 167

Sep. 2010, 3回, 139, 139

Feb. 2025, 9, 259p, 9784260056847

Feb. 2025, xi, 166p, 9784521751252

May 2024, 284 p, 9784781318035

Yasuo Oguri, Asia-Oceania Conference on Obesity 2023 (AOCO 2023), Control and Recruitment of Beige Fat and its Potential Impact on Body Weight, 05 Aug. 2023

CD81 Controls Beige Fat Progenitor Cell Growth and Energy Balance, 04 Nov. 2021

Jun. 2025

May 2025

Mar. 2025

Dec. 2024

Dec. 2024

Nov. 2024

Dec. 2023

Nov. 2023

Jun. 2023

Apr. 2023

Mar. 2023

Dec. 2022

Young Investigator Excellent Abstract Award, 22nd IUNS-ICN International Congress of Nutrition, Yasuo Oguri, Dec. 2022

Oct. 2022

Oct. 2022

Excellent Poster Award, The 8th Asian Congress of Dietetics (ACD2022), Yasuo Oguri, Aug. 2022

Jun. 2022

Jun. 2022

Jun. 2022

Jun. 2022

Mar. 2022

Jan. 2022

Dec. 2021

Dec. 2021

Dec. 2017

Nov. 2017

Nov. 2017

Oct. 2017

Aug. 2017

May 2017

Feb. 2017

Jan. 2017

Dec. 2016

Aug. 2014