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Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin01:26

Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin

Directly acting muscle relaxants like dantrolene and botulinum toxin (BoNT) have distinct mechanisms and applications. Dantrolene, a hydantoin derivative, acts on the ryanodine receptor (RYR1) in skeletal muscle cells. RYR1 are calcium channels present at the sarcoplasmic reticulum membrane. In response to excitation, they release calcium ions from the sarcoplasmic reticulum to the cytosol. Calcium promotes actin-myosin-mediated contraction of muscles.
The binding of dantrolene to the RYR1...

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Multi-exon Skipping Using Cocktail Antisense Oligonucleotides in the Canine X-linked Muscular Dystrophy
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MEK 抑制剂在肌肉发育不良时会降低 Nfix,但会引起意想不到的化,部分通过素食来挽救.

Giuseppe Angelini1, Emanuele Capra1, Francesca Rossi1

  • 1Department of Biosciences, University of Milan, 20133 Milan, Italy.

iScience
|January 11, 2024
PubMed
概括

这项研究研究了Trametinib和Cyanidin用于肌肉发育不良 (MD). 素减轻了Trametinib引起的意想不到的化,为MD提供了潜在的协同治疗方法.

关键词:
癌症 癌症 癌症 癌症药物 药物 药物 是一种药物.病理生理学 病理生理学

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科学领域:

  • 肌肉生物学 肌肉生物学
  • 遗传性疾病 遗传性疾病
  • 药理学 药理学是指药理学的学科.

背景情况:

  • 肌肉发育不良 (MDs) 是一种无法治愈的遗传肌肉病,导致骨肌肉逐渐退化.
  • 缺乏Nfix转录因子的小鼠表现出改善的疾病表型.
  • MAPK信号通路调节Nfix,而抗氧化剂Cyanidin改善了MD病理.

研究的目的:

  • 探索使用Trametinib (MEK抑制剂) 和Cyanidin的MDs的协同治疗方法.
  • 调查联合治疗对Sgca null小鼠Nfix调制和疾病病理学的影响.

主要方法:

  • 成年Sgca无小鼠被单独使用Trametinib或与Cyanidin结合治疗.
  • 评估了肌体细胞中的Nfix水平.
  • 进行了组织学分析,以评估子宫外化和肌肉改善.

主要成果:

  • 慢性特拉美提尼布和丁治疗减少了肌体细胞中的Nfix.
  • 意想不到的子宫外结发生在异形肌肉中.
  • 结合丁治疗预防了腹膜和肌底肌肉中Trametinib诱导的化,显示出组织学上的改善.

结论:

  • 在肌肉发育不良症中,Nfix是由MAPK通路调节的.
  • 素部分挽救了由MEK抑制引起的宫外化.
  • 这项研究为MD的协同治疗策略提供了基础.