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Mechanism and treatment of diabetic retinopathy

Research Project

Project/Area Number 13671851
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Ophthalmology
Research InstitutionJichi Medical School

Principal Investigator

KAKEHASHI Akihiro  Jichi Medical School, Ophthalmology, Associate Professor, 医学部, 助教授 (30296123)

Co-Investigator(Kenkyū-buntansha) KAWAKAMI Masanobu  Jichi Medical School, Comprehensive Medicine I, Professor, 医学部, 教授 (40161286)
KOROKI Masatoshi  Jichi Medical School, Comprehensive Medicine I, Associate Professor, 医学部, 助教授 (90215096)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2002: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2001: ¥2,900,000 (Direct Cost: ¥2,900,000)
KeywordsDiabetic retinopathy / Diabetic animal model / Diabetic melites / Sulfonylurea / Rubeotic glaucoma / Diabetic cataract / SDT rat / STZ rat / 糖尿病動物モデル
Research Abstract

1) A new diabetic retinopathy animal model: SDT rat
SDT rats are the first animal model with spontaneously-ocurring poliferative DR. SDT rats will be uesful for the study of the pathogenesis and the treatment of DR.
2) Mechanism of developing diabetic retinopathy
Egr-1: Expression of Egr-1 found in the retina during hyperglycemia suggests that Egr-1 may be related to progression of diabetic retinopathy.
OPN: Expression of OPN was found to increase in the retina during hyperglycemia, and from this result it is possible that OPN is related to the development of diabetic retinopathy.
3) Drugs targeting diabetic retinopathy
We demonstrated that gliclazide attenuated retinal leukostasis in the diabetic rat, whereas glibenclamide had no effect. This indicates that gliclazide may directly improve abnormalities in the retinal microcirculation besides plasma glucose level control. Therefore, treatment with gliclazide might be efficacious in preventing the development of diabetic retinopathy, compared with other sulfonylurea drugs.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] 梯彰弘, 金澤康徳: "新しい糖尿病網膜症モデル動物-SDTラット"内分泌・糖尿病科. 12. 386-390 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kinoshita N, Kakehashi A, Inoda S, Ito Y, Kuroki M, Yasu T, Kawakami M, Kanazawa Y: "Effective and selective prevention of retinal leukostasis in streptozotocin-induced diabetic rats using gliclazide"Diabetologia. 45. 735-739 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 梯 彰弘: "シンポジウム4 糖尿病動物モデルとその臨床的意義-4糖尿病合併症動物モデル:網膜症を中心に"糖尿病学の進歩2002. 36. 318-323 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kakehashi A, Kanazawa Y: "SDT rat: A new diabetic retinopathy animal model"Endocrinology & Diabetology. 12. 386-390 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kinoshita N, Kakehashi A, Inoda S, Ito Y, Kuroki M, Yasu T, Kawakami M, Kanazawa Y: "Effective and selective prevention of retinal leukostasis in streptozotocin-induced diabetic rats using gliclazide"Diabetologia. 45. 735-739 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kakehashi A: "Development in Diabetology 2002"Diabetic retinopathy animal model. 36. 318-323 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 梯彰弘, 金澤康徳: "新しい糖尿病網膜症モデル動物-SDTラット"内分泌・糖尿病科. 12. 386-390 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kinoshita N, Kakehashi A, Inoda S, Ito Y, Kuroki M, Yasu T, Kawakami M, Kanazawa Y: "Effective and selective prevention of retinal leukostasis in streptozotocin-induced diabetic rats using gliclazide"Diabetologia. 45. 735-739 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 梯 彰弘: "シンポジウム4 糖尿病動物モデルとその臨床的意義-4糖尿病合併症動物モデル:網膜症を中心に"糖尿病学の進歩2002. 36. 318-323 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 梯彰弘, 金澤康徳: "新しい糖尿病網膜症モデル動物-SDTラット"内分泌・糖尿病科. 12. 386-390 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kinoshita N, Kakehashi A, Inoda S, Ito Y, Kuroki M. Yasu T, Kawakami M, Kanazawa Y: "Effective and selective prevention of retinal leukostasis in streptozotocin-induced diabetic rats using gliclazide"Diabetologia. (in press).

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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