Establishment and Pathophysiological Characterization of Type 2 Diabetic Mouse Model Produced by Streptozotocin and Nicotinamide(Highlighted paper selected by Editor-in-chief,Pharmacology)

    • Ogata Taeko [他] OGATA Taeko
    • Department of Molecular Pharmacology and Pharmacotherapeutics, Graduate School of Pharmaceutical Sciences, Chiba University

    • UENO Koichi
    • Department of Geriatric Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Chiba University
    • ONO Kageyoshi
    • Department of Molecular Pharmacology and Pharmacotherapeutics, Graduate School of Pharmaceutical Sciences, Chiba University

    • YANO Shingo
    • Department of Molecular Pharmacology and Pharmacotherapeutics, Graduate School of Pharmaceutical Sciences, Chiba University

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Abstract

This study was performed in order to establish a mouse model that represents the non-obese type 2 diabetes reflecting a majority of diabetic patients among Asian races and to show its pathophysiological profiles. Streptozotocin (STZ) was administered to C57BL/6J mice with or without nicotinamide (120 or 240mg/kg, STZ/NA120 or STZ/NA240), twice with an interval of 2d, and plasma glucose concentration, body weight, water intake, insulin contents and insulin signal-related proteins were monitored. STZ-induced hyperglycemia (fasting and non-fasting), body weight loss and polyposia were significantly depressed by NA dose-dependently. In STZ/NA120 and STZ/NA240 mice, pancreatic insulin content was retained by 28 and 43% of normal control (10.5±0.93μU/ml), respectively, and histological damage of pancreatic beta cells was also less severe than that observed in STZ mice. When given the calorie-controlled high fat diet, the STZ/NA mice caused hyperlipidemia, and significantly increased insulin resistance. These observations suggest that the combined administration of STZ and NA causes partial depletion of pancreatic insulin and that the high fat constituents lead to insulin resistance in this model. The present mouse model, therefore, well exhibits the recent diabetic pathophysiological characteristics of a majority of Asian patients.

Journal

Biological & pharmaceutical bulletin   [List of Volumes]

Biological & pharmaceutical bulletin 29(6), 1167-1174, 2006-06-01  [Table of Contents]

The Pharmaceutical Society of Japan

References:  26

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Cited by:  3

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Codes

  • NII Article ID (NAID) :
    110005602261
  • NII NACSIS-CAT ID (NCID) :
    AA10885497
  • Text Lang :
    ENG
  • Article Type :
    Journal Article
  • ISSN :
    09186158
  • NDL Article ID :
    7921442
  • NDL Source Classification :
    ZS51(科学技術--薬学)
  • NDL Call No. :
    Z53-V41
  • Databases :
    CJP  CJPref  NDL  NII-ELS  J-STAGE