波谱学杂志 ›› 2022, Vol. 39 ›› Issue (4): 393-400.doi: 10.11938/cjmr20212955

• 研究论文 • 上一篇    下一篇

1H MRS评价长期胰岛素治疗1型糖尿病大鼠海马代谢物的变化

徐慧1,2,吴伊婷3,王旭霞1,2,康彦1,2,雷皓1,2,高丽凤3,*()   

  1. 1. 波谱与原子分子物理国家重点实验室, 武汉磁共振中心(中国科学院 精密测量科学与技术创新研究院 武汉物理与数学研究所), 湖北 武汉 430071
    2. 中国科学院大学, 北京 100049
    3. 江汉大学医学院 医学影像系, 湖北 武汉 430056
  • 收稿日期:2021-11-04 出版日期:2022-12-05 发布日期:2021-12-31
  • 通讯作者: 高丽凤 E-mail:gao_lifeng@jhun.edu.cn
  • 基金资助:
    江汉大学校级科研项目资助计划(2022SXZX26);国家自然科学基金资助项目(81601204)

Hippocampal Metabolite Alterations in Long-term Insulin-treated Type 1 Diabetes Mellitus Rats Revealed by 1H MRS

Hui XU1,2,Yi-ting WU3,Xu-xia WANG1,2,Yan KANG1,2,Hao LEI1,2,Li-feng GAO3,*()   

  1. 1. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan (Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences), Wuhan 430071, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Department of Medical Imaging, School of Medicine, Jianghan University, Wuhan 430056, China
  • Received:2021-11-04 Online:2022-12-05 Published:2021-12-31
  • Contact: Li-feng GAO E-mail:gao_lifeng@jhun.edu.cn

摘要:

本研究应用质子磁共振波谱(1H MRS)技术对链脲佐菌素(STZ)诱导的1型糖尿病(T1DM)大鼠及长期胰岛素治疗的T1DM大鼠单侧海马的代谢物进行了分析. 结果发现,与对照组大鼠及胰岛素治疗组大鼠相比,T1DM模型组大鼠空腹血糖显著升高,体重显著降低(p < 0.05).T1DM模型组肌醇(Ins)、牛磺酸(Tau)与谷氨酸(Glu)浓度较对照组显著升高(p = 0.000、p = 0.003、p = 0.014).胰岛素治疗组Ins与Tau浓度较T1DM模型组显著降低(p = 0.000、p = 0.010),与对照组无差别;而Glu、谷氨酸和谷氨酰胺(Glx)浓度较对照组显著升高(p = 0.007、p = 0.042).本文结果表明T1DM大鼠海马区代谢物Ins浓度与Tau浓度对胰岛素治疗敏感.

关键词: 质子磁共振波谱, 代谢物, 海马, 1型糖尿病, 胰岛素

Abstract:

In this study, 1H magnetic resonance spectroscopy (1H MRS) was used to analyze metabolites in the hippocampus of chronic type 1 diabetes mellitus (T1DM) rats induced by streptozocin and T1DM rats treated with long-term insulin. The results showed that, compared with control rats and insulin-treated T1DM rats, the fasting blood glucose of T1DM rats increased significantly, while the body weight of T1DM rats decreased remarkably (p < 0.05). The contents of myo-inositol (Ins), taurine (Tau) and glutamate (Glu) of T1DM rats were significantly higher than those of control rats (p=0.000, p=0.003, p=0.014, respectively), and the contents of Ins and Tau of insulin-treated T1DM rats were significantly decreased than those in the T1DM diabetic rats (p=0.000, p=0.010, respectively). Contents of Glu and Glx (Glu and glutamine) of insulin-treated T1DM rats were significantly higher than those in the control group (p=0.007, p=0.042, respectively). The metabolite changes of Ins and Tau in hippocampus of T1DM rats are sensitive to insulin treatment.

Key words: 1H MRS, metabolite, hippocampus, type 1 diabetes mellitus, insulin

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