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The mechanism of the susceptibility to infection in diabetes and the new management

Research Project

Project/Area Number 09671023
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 内分泌・代謝学
Research InstitutionDOKKYO UNIVERSITY SCHOOL OF MEDICINE (1998)
Gunma University (1997)

Principal Investigator

SATO Noriyuki  DOKKYO UNIVERSITY SCHOOL OF MEDICINE,Department.of Medicine.Lecturer, 医学部, 講師 (90261841)

Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1998: ¥500,000 (Direct Cost: ¥500,000)
KeywordsDiabetes Mellitus / Neutrophils / Oxygen-derived free radicals / infection / New management / 易感染性 / 活性酸素 / ミエロペルオキシダーゼ / レプチン
Research Abstract

In poorly controlled diabetic patients and streptozotocin-induced diabetic rats, neutrophil bactericidal function (oxygen-derived free radicals generation) was clearly decreased. Especially, the generation of superoxide anion and the myeloperoxidase (MPO) dependent radicals were reduced compaired to control. The MPO activity was also decreased in neutrophils from poorly controlled diabetic patients, which was correlated to the increase in HbA1c.
Two drugs, granulocyte-colony stimulating facto (G-CSF) and epairestat, an aldose reductase inhibitor, were improved the diabetic-induced decrease in the generation of oxygen-derived free radicals by poorly controlled diabetic patients and diabetic rats. This improvement by G-CSF was more significant in patients with more poorly blood glucose control. In diabetic rats, cytosolic sorbitol concentration was increased. Epalrestat not only suppressed this increase in sorbitol concentration but increased the impaired neutrophil bactericidal function. There was a negative correlation between epairestat-induced decrease in sorbitol concentration and epairestat-induced increase in neutrophil bactericidal function.
It is well known that the susceptibility to infection is dependent on the impaired neutrophils bactericidal function. This study suggested that the susceptibility to infection in diabetes may be due to the impairment of the generation of oxygen-derived free radicals by neutrophils. Some drugs (e.g. (G-CSF and epairestat) may be useful as drug to prevent the susceptibility to infection in diabetes.

Report

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

    (19 results)

All Other

All Publications (19 results)

  • [Publications] Kashima K., Sato N., et al: "Effect of Epalrestat, an aldose reductase inhibitor, on the generation of oxygen-derived free radicals in neutrophils from streptozotocin-induced diabetic rats." Endocrinology. 139. 3404-3408 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 佐藤則之、 森 昌朋: "ミエロペルオキシダーゼ" 日本臨床. 56. 246-250 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 上原豊、 佐藤則之、 森昌朋: "顆粒球エラスターゼ" 日本臨床. 56. 241-245 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Sato K., Sato N., Mori M: "Isotonic ethanol inhibits the generation of superoxide anion in neutrophils by inducing cell expansion." Endocrinology. 139. 3404-3408 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Sato N., Kashima K., Uehara Y., Ohtani K., Shimizu H., and Mori M.: "Epalrestat, an aldose reductase inhibitor, improves an impaired generation of oxygen-derived free radicals by neutrophils from poorly controlled NIDDM patients." Diabetes Care. 20. 995-998 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Sato N., Kashima K., Tanaka Y., Shimizu H., and Mori M.: "Effect of Granulocyte-colony stimulating factor on generation of oxygen-derived free radicals and myeloperoxidase activity in neutrophils from poorly controlled NIDDM patients." Diabetes. 46. 133-137 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ohtani K., Shimizu H., Sato N., and Mori M.: "Troglitazone (CS-045) inhibits beta-cell proliferation rate following stimulation of insulin secretion in HIT-T 15 cells." Endocrinology. 139. 172-178 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kashima K., Sato N., Sato K., Shimizu H., and Mori M.: "Effect of Epalrestat, an aldose reductase inhibitor, on the generation of oxygen-derived free radicals in neutrophils from streptozotocin-induced diabetic rats." Endocrinology. 139. 3404-3408 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Sato K., Sato N., and Mori M.: "Isotonic ethanol inhibits the generation of superoxide anion in neutrophils by inducing cell expansion." Life Sciences. 63. 1329-1377 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kashima K.,Sato N.,et al: "Effect of Epalrestat,an aldose reductase inhibitor,on the generation of oxygen-derived free radicals in neutrophils from streptozotocin-induced diabetic rats." Endocrinology. 139. 3404-3408 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 佐藤則之、森 昌朋: "ミエロペルオキシダーゼ" 日本臨床. 56. 246-250 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 上原豊、佐藤則之、森昌朋: "顆粒球エラスターゼ" 日本臨床. 56. 241-245 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Sato K.,Sato N.,Mori M: "Isotonic ethand inhibits the generation of superoxide anion in neutrophils by inducing cell expansion." Life Sciences. 63. 1329-1377 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Sato,N., Kashima,K., Tanaka,Y., Shimizu,H., Mori,M.: "Effect of Granulocyte-colony stimulating factor on generation of oxygen-derived free radicals and myeloperoxidase activity in neutrophils from poorly controlled NIDDM patients" Diabetes. 46. 133-137 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Sato,N., Kashima,K., Uehara,Y., Ohtani,K., Shimizu,H., Mori,M.: "Epalrestat,an aldose Λeducatase inhibitor,improves an impaired generation of oxygen-derived bree radicals by neutrophils from poorly controlled NIDDM patients" Diabetes Care. 20. 995-998 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 佐藤 則之.清水 弘行.森 昌朋: "ミエロペルオキシダーゼ" 日本臨床(増刊号)糖尿病3. 728号. 246-250 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 上原 豊, 佐藤 則之, 森 昌朋: "顆粒球エラスターゼ" 日本臨床(増刊号)糖尿病3. 728号. 241-245 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 佐藤 則之, 森 昌朋: "甲状腺刺激ホルモン(TSH)" 臨床スポーツ医学(臨時増刊号)スポーツと臨床検査. 14巻. 115-117 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 小林 功, 佐藤 則之: "サイログロブリン" 臨床スポーツ医学(臨時増刊号)スポーツと臨床検査. 14巻. 126-128 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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