Novel Physiological and Pathophysiological Roles of XOR in Insulin Resistance
Project/Area Number |
20K11654
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 59040:Nutrition science and health science-related
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Research Institution | Juntendo University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
森谷 千尋 順天堂大学, 医学部, 助教 (90645037)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Project Status |
Completed (Fiscal Year 2022)
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Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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Keywords | XOR / 糖尿病 / インスリン抵抗性 / 尿酸 |
Outline of Research at the Start |
2型糖尿病の病態においてインスリン抵抗性の発症機序を解明することは糖尿病治療戦略において重要な課題である。高尿酸血症とインスリン抵抗性や肥満との間に正の相関を示すことが多くの観察研究で報告されているが、因果関係は不明である。 本研究では尿酸の産生に重要な酵素であるXOR (キサンチンオキシドレダクターゼ)に着目し,XORがインスリン抵抗性に及ぼす影響とその作用機序を解明する。インスリン抵抗性主要臓器である肝臓や筋肉への直接的なXOR生理活性を解明することで、新たなインスリン抵抗性発症機序が解明され、新たな糖尿病治療薬の開発に大きく貢献できると考える。
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Outline of Final Research Achievements |
Many observational studies have reported a positive correlation between hyperuricemia and insulin resistance, but the causal relationship is unknown. In this study, we focused on XOR, an enzyme important in the production of uric acid, and investigated the effect of XOR on insulin resistance using the XOR inhibitor febuxostat; XOR inhibitors significantly increased insulin sensitivity in peripheral tissues but did not significantly alter insulin sensitivity in the liver. We elucidated that XOR inhibitors enhance insulin sensitivity by directly inhibiting XOR in skeletal muscle. These results suggest that XOR is not only involved in uric acid production but may also be closely related to the pathogenesis of insulin resistance in skeletal muscle.
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Academic Significance and Societal Importance of the Research Achievements |
本研究では、XORは尿酸産生に関与するばかりでなく、骨格筋でのインスリン抵抗性の病態にも深く関与していることを明らかにした。 本研究の成果により、骨格筋におけるXORとインスリン抵抗性との関連が解明され、インスリン抵抗性の新たな発症機序の解明につながると期待される。さらに今後ますます重要と考えられるインスリン抵抗性の治療薬の開発につながると期待される。
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Report
(4 results)
Research Products
(58 results)
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[Journal Article] Sex differences in risk factors for end‐stage kidney disease and death in type 2 diabetes: A retrospective cohort study.2023
Author(s)
Oshima M, Iwata Y*, Toyama T, Kitajima S, Hara A, Sakai N, Shimizu M, Furuichi K, Haneda M, Babazono T, Yokoyama H, Iseki K, Araki S, Ninomiya T, Hara S, Suzuki Y, Iwano M, Kusano E, Moriya T, Satoh H, Nakamura H, Makino H, Wada T
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Journal Title
J Diabetes
Volume: 15
Issue: 3
Pages: 246-254
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Relationship Between Risk of Hyper-Low-density Lipoprotein Cholesterolemia and Evacuation After the Great East Japan Earthquake2022
Author(s)
Satoh H, Okazaki K, Ohira T, Sakai A, Hosoya M, Yasumura S, Kawasaki Y, Hashimmoto K, Ohtsuru A, Takahashi A, Watanabe K, Shimabukuro M, Kazama JJ, Hashimoto S, Kobashi G, Ohira H, Ohto H, Kamiya K
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Journal Title
Journal of Epidemiology
Volume: 32
Issue: 6
Pages: 277-282
DOI
NAID
ISSN
0917-5040, 1349-9092
Year and Date
2022-06-05
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Author Correction: Both higher fitness level and higher current physical activity level may be required for intramyocellular lipid accumulation in non-athlete men2021
Author(s)
Yamasaki N, Tamura Y, Takeno K, Kakehi S, Someya Y, Funayama T, Furukawa Y, Kaga H, Suzuki R, Sugimoto D, Kadowaki S, Sato M, Nakagata T, Nishitani-Yokoyama M, Shimada K, Daida H, Aoki S, Satoh H, Kawamori R, Watada H.
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Journal Title
Sci Rep
Volume: 25
Issue: 1
Pages: 7304-7304
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Fast walking is a preventive factor against new-onset diabetes mellitus in a large cohort from a Japanese general population2021
Author(s)
Iwasaki M, Kudo A, Asahi K, Machii N, Iseki K, Satoh H, Moriyama T, Yamagata K, Tsuruya K, Fujimoto S, Narita I, Konta T, Kondo M, Shibagaki Y, Kasahara M, Watanabe T, Shimabukuro M
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Journal Title
Sci Rep
Volume: 11(1)
Issue: 1
Pages: 716-716
DOI
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Peer Reviewed / Open Access
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[Journal Article] Influence of post-disaster evacuation on incidence of hyperuricemia in residents of Fukushima Prefecture: the Fukushima Health Management Survey2020
Author(s)
Hashimoto S, Nagai M, Ohira T, Fukuma S, Hosoya M, Yasumura S, Satoh H, Suzuki H, Sakai A, Ohtsuru A, Kawasaki Y, Takahashi A, Okazaki K, Kobashi G, Kamiya K, Yamashita S, Fukuhara SI, Ohto H
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Journal Title
Clinical and Experimental Nephrology
Volume: 24
Issue: 11
Pages: 1025-1032
DOI
NAID
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Shape of the glucose response curve during an oral glucose tolerance test is associated with insulin clearance and muscle insulin sensitivity in healthy non-obese men.2020
Author(s)
Kaga H, Tamura Y, Takeno K, Kakehi S, Someya Y, Funayama T, Furukawa Y, Suzuki R, Sugimoto D, Kadowaki S, Nishitani-Yokoyama M, Shimada K, Daida H, Aoki S, Giacca A, Sato H, Kawamori R, Watada H.
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Journal Title
J Diabetes Investig.
Volume: .
Issue: 4
Pages: 874-877
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Influence of Post-Disaster Evacuation on Childhood Obesity and Hyperlipidemia2020
Author(s)
Kawasaki Y, Nakano H, Hosoya M, Yasumura S, Ohira T, Satoh H, Suzuki H, Sakai A, Ohtsuru A, Takahashi A, Kobashi G, Kamiya K.
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Journal Title
Pediatr Int
Volume: -
Issue: 6
Pages: 669-676
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Ingestion of an exogenous ketone monoester improves the glycemic response during oral glucose tolerance test in individuals with impaired glucose tolerance: A cross‐over randomized trial2020
Author(s)
Nakagata T, Tamura Y, Kaga H, Sato M, Yamasaki N, Someya Y, Kadowaki S, Sugimoto D, Satoh H, Kawamori R, Watada H
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Journal Title
Journal of Diabetes Investigation
Volume: -
Issue: 5
Pages: 756-762
DOI
Related Report
Peer Reviewed
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[Journal Article] Fukushima Health Management Survey. Relationship between the prevalence of polycythemia and factors observed in the mental health and lifestyle survey after the Great East Japan Earthquake.2020
Author(s)
Sakai A, Nakano H, Ohira T, Maeda M, Okazaki K, Takahashi A, Kawasaki Y, Satoh H, Ohtsuru A, Shimabukuro M, Kazama J, Hashimoto S, Hosoya M, Yasumura S, Yabe H, Ohto H, Kamiya K
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Journal Title
Medicine (Baltimore)
Volume: 99
Issue: 1
Pages: e18486-e18486
DOI
Related Report
Peer Reviewed
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[Journal Article] Characteristics associated with elevated 1-h plasma glucose levels during a 75-g oral glucose tolerance test in non-obese Japanese men.2020
Author(s)
Sato M, Tamura Y, Someya Y, Takeno K, Kaga H, Kadowaki S, Sugimoto D, Kakehi S, Funayama T, Furukawa Y, Suzuki R, Nakagata T, Nishitani-Yokoyama M, Shimada K, Daida H, Aoki S, Sato H, Kawamori R, Watada H.
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Journal Title
J Diabetes Investig
Volume: .
Issue: 6
Pages: 1520-1523
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Effect of real‐life insulin pump with predictive low‐glucose management use for 3 months: Analysis of the patients treated in a Japanese center2020
Author(s)
Tsunemi A, Sato J, Kurita M, Wakabayashi Y, Waseda N, Koshibu M, Shinohara M, Ozaki A, Nakamura H, Hirano N, Ikeda F, Satoh H, Watada H
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Journal Title
Journal of Diabetes Investigation
Volume: 11
Issue: 6
Pages: 1564-1569
DOI
Related Report
Peer Reviewed
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[Journal Article] Both higher fitness level and higher current physical activity level may be required for intramyocellular lipid accumulation in non-athlete men.2020
Author(s)
Yamasaki N, Tamura Y, Takeno K, Kakehi S, Someya Y, Funayama T, Furukawa Y, Kaga H, Suzuki R, Sugimoto D, Kadowaki S, Sato M, Nakagata T, Nishitani-Yokoyama M, Shimada K, Daida H, Aoki S, Sato H, Kawamori R, Watada H.
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Journal Title
Sci Rep.
Volume: 10
Issue: 1
Pages: 4102-4102
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] The Impact of Visulalizing Macronutrient content via Food-Long App “Calomeal” on glycemic Control and QoL in People with Thpe 2 Diabetes2020
Author(s)
Tsunemi A, Sato J, Enomoto M, Iwagaki Y, Sugimoto S, Someya Y, Kiya M, Matsuhashi E, Wakabayashi Y, Funayama T, Uchida T, Miyatsuka T, Azuma K, Shimizu T, Satoh H, Kanazawa A, Watada H
Organizer
80th American Diabetes Association Scientific Sessions
Related Report
Int'l Joint Research
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[Presentation] Coexistence of Hypoadiponectinemia and Impaired Adipose Tissue Insulin Sensitivity Increases the Risk of Metabolic Abnomality Due to Muscle Insulin Resistance in Nonobese Japanese Men2020
Author(s)
Kiya M, Tamura Y, Takeno K, Someya Y, Kakehi S, Sato M, Yamasaki N, Kadowaki S, Suzuki R, Furukawa Y, Sugimoto D, Kaga H, Funayama T, Satoh H, Kawamori R, Watada H
Organizer
80th American Diabetes Association Scientific Sessions
Related Report
Int'l Joint Research
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