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中国科学院大学学报 ›› 2008, Vol. 25 ›› Issue (2): 192-196.DOI: 10.7523/j.issn.2095-6134.2008.2.008

• 论文 • 上一篇    下一篇

钒对遗传性Ⅱ型糖尿病KK小鼠降糖作用的实验研究

周桔 彭端 李明 丁文军   

  1. 中国科学院研究生院生命科学学院,北京100049
  • 收稿日期:1900-01-01 修回日期:1900-01-01 发布日期:2008-03-15

Effectofvanadiumonbloodglucoselevels:acomparisonstudyinmaleand femaleKKmicewithgeneticnoninsulindependentdiabetes mellit-us

ZHOUJu PENGDuan LIMing DINGWenJun   

  1. CollegeofLifeSciences,GraduatesUniversityofChineseAcademyofSciences,Beijing100049,China
  • Received:1900-01-01 Revised:1900-01-01 Published:2008-03-15

摘要: 以遗传性非胰岛素依赖型糖尿病KK小鼠为动物模型,研究钒对雌雄性糖尿病小鼠的降糖作用.实验选择3周龄的KK小鼠,雌雄各半,通过自由饮水方式给予雌雄性小鼠0mg/L、0.1mg/L和100mg/L的钒酸铵,实验周期为17周,观察不同剂量钒酸铵对血糖、甘油三酯和总胆固醇代谢的影响.研究结果表明,01mg?L钒酸铵对雌雄性小鼠的血糖水平和血液生化指标没有明显的影响,高剂量钒酸铵(100mg?L)明显降低雄性糖尿病小鼠的饮水量、血糖水平、糖基化血红蛋白、甘油三酯和总胆固醇等,葡萄糖耐量水平得到显著改善,对糖尿病小鼠的肝肾功能没有影响.结果提示钒酸铵对雌性小鼠和雄性小鼠具有降血糖作用,其作用效果有明显的性别差异.

关键词: 钒, KK小鼠, 血糖, 脂肪和胆固醇, 性别差异

Abstract: Theeffectoforaladministrationofvanadium(V)onbloodglucosewasexaminedinthemaleandfemale KKmicewithgeneticnoninsulindependentdiabetesmellitus(NIDDM).Themajordifferencesbetweenmalesand femaleswereobservedintheirsensitivitytohighconcentrationofvanadium(100mg?L)throughdrinkingwater.The
resultsobtainedfrommalemiceshowedthatwaterintake,bloodglucoseandhemoglobinA1c(HbA1c)levels,triglyceride(TG),highdensitylipoproteincholesterol(HDLc),andtotalcholesterol(TCHO)weresignificantlydecreasedwithoutanyeffectonbodyweight.Furthermore,theplasma1,5anhydroglucitol(1,5AG)concentrationandglucosetoleranceweresignificantlyincreasedandimprovedafter100mg?Lofvanadiumtreatment.Inaddition,vanadiumhadnoeffectonplasmaglutamicpyruvictransaminase(GPT)andglutamicoxaloacetatetransaminase(GOT)activities,andbloodureanitrogen(BUN)levelsascomparedwiththecontrols.Theseresultssuggestthat therearesignificantsexdifferencesinsensitivitytovanadiumwithaglucoseloweringdoseinmaleandfemaleKK
mouse.Theglucoseloweringeffectsweremoremarkedinmalesthaninfemales.

Key words: vanadium, KKmouse, bloodglucose, metabolismoflipidandcholesterol, sexdifference

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