• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Altered neurovascular network in type 2 diabetes and its repair

Research Project

Project/Area Number 19K09036
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54040:Metabolism and endocrinology-related
Research InstitutionToho University

Principal Investigator

Yagihashi Soroku  東邦大学, 医学部, 教授(寄付講座) (40111231)

Co-Investigator(Kenkyū-buntansha) 水上 浩哉  弘前大学, 医学研究科, 教授 (00374819)
Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords2型糖尿病 / インスリン抵抗性 / 膵島血管 / 膵島神経 / 病理変化 / 膵島病理 / 自律神経 / 微小血管
Outline of Research at the Start

糖尿病では膵島に分布する毛細血管や自律神経も同じように障害を受け、膵島病変を進展させることが推定されるがこれまで糖尿病での膵島細小血管障害、神経障害の病理・病態、およびその進展に関する情報は極めて少ない。2型糖尿病でのβ細胞減少やインスリン抵抗性状態と膵島神経・血管構築の異常との関連を解析し、かつ治療によるその介入を試みることは2型糖尿病の病態を改善させる新しい治療法の探索へとつながる。本研究では、ヒトおよびラットでの2型糖尿病の膵島での神経・血管構築異常を明確にし、因果関係を含めた糖尿病病態との関連を解析する。また、病理変化に関与する因子を明らかにし治療による可逆性の有無について検討する。

Outline of Final Research Achievements

Insulin deficiency is reflected by beta cell deficit in type 2 diabetes (T2DM), whereas it is not known how the insulin resistance attributes to the pathological alterations. In the present study, we attempted to characterize the pathological changes of islet neuro-vascular networks in patients with T2DM and compared with those in non-diabetic control subjects with special reference to the effects of marked insulin resistance. We found robust amyloid deposition, reduced number of microvessels, capillary obliteration and mural thickening with pericyte loss, and loss of parasympathetic nerve fibers in T2DM with insulin resistance reflected by the presence of macroangiopathy (infarction of brain and heart). These results indicate that insulin resistance elicits islet neuro-vasculopathy together with emergence of T2DM, resulting in bleak prognosis by the episode of cardiac or cerebral infarction.

Academic Significance and Societal Importance of the Research Achievements

わが国は高齢化社会のなかで労働力、生産力の低下が著しく国力の衰えが目立つ。とくに最も活躍の期待される40代、50代の年齢層では食内容の欧米化、運動量の低下などから糖尿病をはじめとする生活習慣病の蔓延がみられる。これまで、肥満、糖尿病など、生活習慣病への有効な対策はとられておらず、個々の努力に委ねられてきた。その理由として、多数の因子が不明確な割合で関与し、明確な指針が欠落していたことなどが挙げられる。本研究では、膵島病変へのインスリン抵抗性の役割を明確に示し、個別の対策の重要性を提唱している。さらに大血管障害を合併する予後不良の2型糖尿病への進展阻止の道をも目指している。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (23 results)

All 2023 2022 2021 2020 2019

All Journal Article (16 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 16 results,  Open Access: 15 results) Presentation (6 results) (of which Int'l Joint Research: 3 results) Book (1 results)

  • [Journal Article] Gut as a source of new beta-cells and Segi's cap2023

    • Author(s)
      Yagihashi S.
    • Journal Title

      Journal of Diabetes Investigation

      Volume: 14 Pages: 838-840

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Contribution of animal models to diabetes research: Its history, significance, and translation to humans.2023

    • Author(s)
      Soroku Yagihashi
    • Journal Title

      J Diabetes Investig

      Volume: 14 Issue: 9 Pages: 1015-1037

    • DOI

      10.1111/jdi.14034

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Bi-glandular and persistent enterovirus infection and distinct changes of the pancreas in slowly progressive type 1 diabetes mellitus2023

    • Author(s)
      Fukui Tomoyasu、Kobayashi Tetsuro、Jimbo Erika、Aida Kaoru、Shimada Akira、Oikawa Yoichi、Mori Yasumichi、Fujii Takeshi、Koyama Rikako、Kobayashi Kazuhiko、Takeshita Akira、Yagihashi Soroku
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 6977-6977

    • DOI

      10.1038/s41598-023-33011-7

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gut as a source of new β‐cells and Segi's cap2023

    • Author(s)
      Yagihashi Soroku
    • Journal Title

      Journal of Diabetes Investigation

      Volume: May Issue: 7 Pages: 838-840

    • DOI

      10.1111/jdi.14025

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] RAGE activation in macrophages and development of experimental diabetic polyneuropathy2022

    • Author(s)
      Osonoi Sho、Mizukami Hiroki、Takeuchi Yuki、Sugawa Hikari、Ogasawara Saori、Takaku Shizuka、Sasaki Takanori、Kudoh Kazuhiro、Ito Koichi、Sango Kazunori、Nagai Ryoji、Yamamoto Yasuhiko、Daimon Makoto、Yamamoto Hiroshi、Yagihashi Soroku
    • Journal Title

      JCI Insight

      Volume: 7 Issue: 23

    • DOI

      10.1172/jci.insight.160555

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The diversity and abundance of gut microbiota are associated with the pain sensation threshold in the Japanese population2022

    • Author(s)
      Takeuchi Yuki、Mizukami Hiroki、Kudoh Kazuhiro、Osonoi Sho、Sasaki Takanori、Kushibiki Hanae、Ogasawara Saori、Hara Yutaro、Igawa Akiko、Pan Xuekai、Yamada Takahiro、Yamazaki Keisuke、Mikami Tatsuya、Daimon Makoto、Yagihashi Soroku、Hakamada Kenichi、Nakaji Shigeyuki
    • Journal Title

      Neurobiology of Disease

      Volume: 173 Pages: 105839-105839

    • DOI

      10.1016/j.nbd.2022.105839

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Diabetes in humans activates pancreatic stellate cells via RAGE in pancreatic ductal adenocarcinoma.2022

    • Author(s)
      Uchida C, Mizukami H, Hara Y, Saito T, Umetsu S, Igawa A, Osonoi S, Kudoh K, Yamamoto H, Yagihashi S, Hakamada K
    • Journal Title

      Int J Mol Sci

      Volume: 22 Issue: 21 Pages: 11716-11716

    • DOI

      10.3390/ijms222111716

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Immunohistochemical detection of enteroviruses in pancreatic tissues of patients with type 1 diabetes using a polyclonal antibody against 2A protease of Coxsackievirus. J Diabetes Invest2022

    • Author(s)
      Jimbo E, Kobayashi T, Takeshita A, Mine K, Nagafuchi S, Fukui T, Yagihashi S,
    • Journal Title

      J Diabetes Invest

      Volume: 13 Issue: 3 Pages: 435-442

    • DOI

      10.1111/jdi.13700

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Islet microangiopathy and augmented be-ta cell loss in Japanese non-obese type 2 diabetes patients who died of acute myocardial infarction2021

    • Author(s)
      Takahashi K, Mizukami H, Sho Osonoi, Takeuchi Y, Kudoh K, Sasaki T, Daimon M, Yagihashi S
    • Journal Title

      J Diabetes Investigation

      Volume: 12 Issue: 12 Pages: 2149-2161

    • DOI

      10.1111/jdi.13601

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inhibitory effects of xanthine oxidase inhibitor, topiroxostat, on development of neuropathy in db/db mice2021

    • Author(s)
      Takhashi K, Mizukami H, Osonoi S, Ogasawara S, Hara Y, Kudoh K, Takeuchi Y, Sasaki T, Daimon M, Yagihashi S
    • Journal Title

      Neurobiol Dis

      Volume: 155 Pages: 105392-105392

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Diabetes, an independent poor prognostic factor of non-B non-C hepatocellular carcinoma, correlates with dihydropyrimidinase-like 3 promoter methylation.2020

    • Author(s)
      Umetsu S, Mizukami H, Saito T, Uchida C, Igawa A, Kudo K, Itabashi C, Osonoi S, Danyang G, Sasaki T, Yagihashi S, Hakamada K.
    • Journal Title

      Sci Rep

      Volume: 10 Issue: 1 Pages: 1156-1156

    • DOI

      10.1038/s41598-020-57883-1

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Beneficial effects of combination therapy of canagliflozin and teneligliptin on diabetic polyneuropathy and beta-cell volume density in spontaneously type 2 diabeteic Goto-Kakizaki rats.2020

    • Author(s)
      Guo D, Mizukami H, Osonoi S, Takahashi K, Ogasawara S, Kudo K, Sasaki T, Yagihashi S
    • Journal Title

      Metabolism

      Volume: 107 Pages: 154232-154232

    • DOI

      10.1016/j.metabol.2020.154232

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] What can we learn from the islet of Joslin Medalists?2020

    • Author(s)
      Yagihashi S
    • Journal Title

      J Diabetes Invest

      Volume: 11 Issue: 5 Pages: 1117-1119

    • DOI

      10.1111/jdi.13283

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of glucosamine in development of diabetic neuropathy independent of the aldose reductase pathway.2020

    • Author(s)
      Mizukami H, Osonoi S, Takaku S, Yamagishi SI, Ogasawara S, Sango K, Chung S, Yagihashi S
    • Journal Title

      Brain Commun

      Volume: 2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Unique inflammatory changes in exocrine and endocrine pancreas in enterovirus-induced fulminant Type 1 diabetes2019

    • Author(s)
      Takita M, Jimbo E, Fukui T, AIda K, Shimada A, Oikawa Y, Yagihashi S, Miura J, Babazono T, Kobayashi T
    • Journal Title

      J Clin Endocrinol Metab

      Volume: 104 Pages: 4282-4294

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cutaneous microangiopathy in patients with type2 diabetes: Impaired vascular endothelial growth factor expression and its correlation with neuropathy, retinopathy and nephropathy2019

    • Author(s)
      Sugimoto Kazuhiro、Murakami Hiroshi、Deguchi Takahisa、Arimura Aiko、Daimon Makoto、Suzuki Susumu、Shimbo Takuro、Yagihashi Soroku
    • Journal Title

      Journal of Diabetes Investigation

      Volume: 10 Issue: 5 Pages: 13020-13020

    • DOI

      10.1111/jdi.13020

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Type 2 diabetes is a prognostic factor of non-B nonC hepatocellular carcinoma with increasing DPYSL3 promoter hypermethylation2021

    • Author(s)
      Mizukami H, Umetsu S, Uchida C, Igawa A, Kudoh K, Osonoi S, Sasaki T, Yagihashi S
    • Organizer
      80th American Diabetes Association meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Implication of cyclin D2 in beta cell proliferation of human perinatal islet2021

    • Author(s)
      Osonoi S, Sasaki T, Kudo K, Yagihashi S, Mizukami H
    • Organizer
      80th American Diabetes Association meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Activated xanthine oxidase in serum is a potent therapeutic target for experimental diabetic polyneuropathy2021

    • Author(s)
      Ichinohe H, Mizukami H, Osonoi S, Takahashi K, Ogasawara S, Yagihashi S
    • Organizer
      80th American Diabetes Association meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 胎生期から学童期の膵島内分泌細胞は各細胞独自の容積、増殖能を示す2019

    • Author(s)
      一戸寛、遅野井祥、郭丹陽、工藤和洋、水上浩哉、八木橋操六
    • Organizer
      第108回日本病理学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 急性心筋梗塞合併2型糖尿病は膵島病理学的所見により亜分類される2019

    • Author(s)
      水上浩哉、高橋和久、遅野井祥、郭丹陽、工藤和洋、板橋智映子、八木橋操六
    • Organizer
      第108回日本病理学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 新しい2型糖尿病亜分類の膵島病理学的所見に基づく検討2019

    • Author(s)
      水上浩哉、高橋和久、遅野井祥、工藤和洋、板橋智映子、八木橋操六
    • Organizer
      第62回日本糖尿病学会
    • Related Report
      2019 Research-status Report
  • [Book] Diabetic Neuropathy (Pathologic basis for diabetic neuropathy in humans)2022

    • Author(s)
      Yagihashi S (ed by Tavakoli M)
    • Total Pages
      380
    • Publisher
      Elsevier
    • ISBN
      9780128206690
    • Related Report
      2022 Research-status Report 2021 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi