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Research on the mechanism of glaucoma in exfoliation syndrome

Research Project

Project/Area Number 08672021
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Ophthalmology
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

KUBOTA Toshiaki  Department of Ophthalmology, Faculty of Medicine, Kyushu University, Assistant Professor, 医学部, 講師 (30205140)

Co-Investigator(Kenkyū-buntansha) TAWARA Akihiko  Department of Ophthalmology, Wakayama Medical College, Associated Professor, 医学部, 助教授 (90117169)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1998: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1997: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1996: ¥800,000 (Direct Cost: ¥800,000)
KeywordsGlaucoma / Exfoliation syndrome / Aging / Proteoglycan / HNK-1 epitope / microfibril / 細胞外マトリックス
Research Abstract

The wide distribution of the HNK-l epitope in anterior segment tissues and its association with a variety of extracellular and cellular structures was ultrastructurally demonstrated. In exfoliation syndrome, the varying labelling density of PEX fibers indicates a deviating carbohydrate composition in different locations of the eye. The HNK-1 epitope might be involved in the adhesiveness of exfoliation deposits on intraocular surfaces.
We showed simultaneous presence of the HNK- 1 epitope and proteoglycans associated with zonular fibrils and exfoliation material on the posterior surface of the iris. The HNK-l epitope was immunolocalized to the periphery of the pseudoexfoliation fibers, while Cupromeronic Blue-positive filaments bridged adjacent exfoliation fibers. Proteoglycans and the HNK-1 epitope might play a substantial role in the formation of exfoliation material via their adhesive function. Proteoglycans probably do not directly bear the HNK- 1 epitope in exfoliation material.
Clinical ocular signs in Japanese patients with exfoliation syndrome were examined. The anterior chamber pigment dispertions after pupillary dilatation, anterior lens surface pigment particles, and angle pigmentation were significantly evident in Japanese patients with exfoliation syndrome than the normal control.
Aging changes included duplication of the basal lamina of posterior iris pigment epithelial cells, formation of atrophic invaginations in the posterior cell membranes containing interlacing basal lamina, formation of microfibrils, deposition of electron-dense material in relation to the basal lamina and/or microfibrils, and the presence of some fine granular material overlying the basal lamina. These age-related changes in the human iris have been consistently described before in association with esfoliation material, which suggests the possibility that exfoliation is an eventual aging process.7

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (31 results)

All Other

All Publications (31 results)

  • [Publications] Kubota T.: "Double staining of proteoglycans and the HNK-1 carbohydrate epitope in pseudoexfoliation material" Current Eye Research. 17(1). 60-64 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] アハマド・カリル: "虹彩後面の加齢変化と落屑症候群" 臨床眼科. 52(7). 1222-1223 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 久保田敏昭: "乳頭解析,網膜神経線維層厚測定-緑内障の視点から-" 臨床眼科. 52(11). 114-117 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Khalil A.K.: "Early changes in iris blood vessels in exfoliation syndrome" Current Eye Research. 17(12). 1124-1134 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Khalil A., Kubota T., Tawara A., Inomata H.: "Ultrastructural age-related changes on the posterior iris surface. A possible relationship to the pathogenesis of exfoliation" Arch Ophthalmol. 114 (6). 721-725 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kubota T., Tawara A., Hata Y., Khalil A., Inomata H.: "Neovascular tissue in the intertrabecular spaces in eyes with neovascular glaucoma" Brit J Ophthalmol. 80 (8). 750-754 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kubota T., Schlotzer-Schrehardt U., Inomata H., Naumann G.O.H.: "Immunoelectron microscopic localization of the HNK-1 carbohydrate epitope in the anterior segment of pseudoexfoliation and normal eyes" Curr Eye Res. 16 (3). 231-238 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kawasaki, T., Gotoh M., Kubota T., Tawara A., Ohnishi Y., Inomata H.: "Angiography of newly formed vessels in the iris and chamber angle with a scanning laser ophthalmolscope" Jpn J Clin Ophthalmol. 51 (5). 999-1001 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kubota T., Sakamoto M., Tawara A., Inomata H., Naumann G.O.H.: "Clinical ocular signs in Japanese patients with exfoliation syndrome" Annals of Ophthalmology and Glaucoma. 29 (5). 287-289 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kubota T., Tawara A., Khalil A., Honda M., Inomata H.: "Distribution of proteoglycans in the trabecular tissue of eyes with neovascular glaucoma" German J Ophthalmol. 5. 392-398 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kubota T., Kawasaki T., Inomata H.: "Trabecular neovascularization" Jpn J Clin Ophthalmol. 51 (10). 1652-1653

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kubota T., Khalil A., Tawara A., Zhang X., Inomata H.: "Double staining of proteoglycans and the HNK-1 carbohydrate epitope in pseudoexfoliation material" Curr Eye Res. 17 (1). 60-64 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Khalik A., Kubota T., Inomata H.: "Age-related changes on the posterior iris surface and exfoliation syndrome" Jpn J Clin Ophthalmol. 52 (7). 1222-1223 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kubota T., Honda M.: "Optic disc morphometry, retinal nerve fiber layer thickness measurement" Jpn J Clin Ophthalmol. 52 (11). 114-117 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Khalil A.K., Kubota T., Tawara A., Inomata H.: "Early changes in iris blood vessels in exfoliation syndrome" Curr Eye Res. 17 (12). 1124-1134 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kubota T.: "Double staining of proteoglycans and the HNK-1 carbohydrate epitope in pseudoexfoliation material" Current Eye Research. 17. 60-64 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] アハマド・カリル: "虹彩後面の加齢変化と落屑症候群" 臨床眼科. 52. 1222-1223 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 久保田敏昭: "乳頭解析,網膜神経線維層厚測定-緑内障の視点から-" 臨床眼科. 52(11). 114-117 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Khalil A.K.: "Early changes in iris blood vessels in exfoliation syndrome" Current Eye Research. 17. 1124-1134 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 巣山弥生: "先天小瞳孔と隅角発育異常緑内障を合併した1例" あたらしい眼科. 14・2. 225-259 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kubota T.: "Immunoelectron microscopic localization of the HNK-1 carbohydrate epitope in the anterior segment of pseudoexfoliation and normal eyes" Current Eye Research. 16・3. 231-238 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 川崎貴子: "走査レーザー検眼鏡を用いた前眼部新生血管の蛍光造影検査" 臨床眼科. 51・5. 999-1001 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kubota T.: "Clinical ocular signs in Japanese patients with exfoliation syndrome" Annals of Ophthalmology and Glaucoma. 29・5. 290-292 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 久保田敏昭: "線維柱帯血管新生" 臨床眼科. 51・10. 1652-1653 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 中村多賀雄: "乳頭周囲網脈絡膜萎縮の走査レーザー検眼鏡による検討" あたらしい眼科. 13. 139-142 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 本松薫: "Heidelberg retina tomographを用いた緑内障眼の視神経乳頭解析乳頭パラメーターと視野体積との相関" 臨床眼科. 50. 533-535 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kubota T.: "Aqueous flare in eyes with senile disciform macular degeneretion : correlation with clinical stage and area of neovascular membrane" Graefe's Arch Clin Exp Ophthalmol. 234. 285-287 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kubota T.: "The ultrastructure of parapapiliary chorioretinal atrophy in eyes with secondary angle cloureglzucoma" Graefe's Arch Clin Exp Ophthalmol. 234. 351-358 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Khalil A.: "Ultrastructural age-related changes on the posterior iris surface. A possible relationship to the pathogensis of exfoliation" Arch Ophthalmol. 114. 721-725 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kubota T.: "Neovascular tissue in the intertrabecular spaces in eyes with neovascular glaucoma" BritJ Ophthalmol. 80. 750-754 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kubota T.: "Curr Eye Res" Immunoelectron microscopic localization of the NHK-1 carbohydrate epitope in the anterior segment of pseudoexfoliation and normal eyes, (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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