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通过光强度运动获得肌肉衍生的miR-200a-3p可能有助于改善2型糖尿病小鼠的记忆功能障碍.

Takeru Shima1, Hayate Onishi2, Chiho Terashima1

  • 1Department of Health and Physical Education, Cooperative Faculty of Education, Gunma University, Maebashi, Gunma, Japan.

FASEB journal : official publication of the Federation of American Societies for Experimental Biology
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轻量运动通过增加肌肉分泌的分子miR-200a-3p来改善2型糖尿病的记忆力. 这种微RNA可能是逆转糖尿病相关认知衰退的关键.

关键词:
运动就是炼身体.外基因组是外基因组中的一个.胃半腹肌的肌肉是什么意思记忆的功能 记忆的功能 记忆的功能miR‐200a‐3p 的使用情况.2 型糖尿病 2 型糖尿病

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科学领域:

  • 神经科学是一个神经科学.
  • 内分泌学 在内分泌学.
  • 分子生物学分子生物学

背景情况:

  • 2型糖尿病 (T2DM) 与记忆功能障碍有关.
  • 光强度运动在改善海马体功能方面显示出有前途.
  • 微RNAs,如miR-200a-3p,在细胞通信和功能中发挥作用.

研究的目的:

  • 为了研究外体 miR-200a-3p 来自胃口肌肌肉在改善T2DM小鼠的记忆功能障碍中的作用.
  • 评估光强度运动对miR-200a-3p分泌和海马体功能的影响.
  • 为了确定外源的miR-200a-3p模仿者是否可以在T2DM模型中改善记忆.

主要方法:

  • 在T2DM小鼠中评估记忆功能,外体miR-200a-3p水平 (肌肉和血),并在4周光强度运动后评估T2DM小鼠的海马体mRNA.
  • 每天注射mmu-miR-200a-3p模仿T2DM小鼠的腹腔内注射4周.
  • 分析了Keap1,Hsp90aa1和Mct2mRNA的海马体表达.

主要成果:

  • 在T2DM小鼠中,光强度运动增加了胃口肌肉和血外体miR-200a-3p水平,与改善的记忆相关.
  • 在T2DM小鼠中,内注射mumu-miR-200a-3p模仿剂也增强了记忆功能.
  • 运动和miR-200a-3p模仿治疗都导致海马基AP1减少,Hsp90aa1和Mct2mRNA增加.

结论:

  • 增加的外周miR-200a-3p,可能来自胃角肌外体分泌,有助于改善T2DM小鼠进行轻度运动的记忆力.
  • 外体miR-200a-3p是缓解T2DM相关认知缺陷的潜在治疗标.