筋縮症
Eugenio Mercuri1, Carsten G Bönnemann2, Francesco Muntoni3
1Pediatric Neurology Unit, Università Cattolica del Sacro Cuore Roma, Rome, Italy; Nemo Clinical Centre, Fondazione Policlinico Universitario A Gemelli IRCCS, Rome, Italy.
Lancet (London, England)
|December 3, 2019
まとめ
遺伝子の変異は 筋肉の衰弱を引き起こし 筋肉の健康に影響します 診断とサポートケアにおける進歩により 患者の治療結果と生活の質が向上し 新しい治療法も生まれています
科学分野:
- 神経学
- 遺伝学
- 分子生物学
背景:
- 筋肉縮症は40以上の遺伝子の変異によって引き起こされる 遺伝的な筋肉疾患です
- これらの状態は,筋肉生検で観察可能な特徴的な消化変化をもたらします.
- 責任ある遺伝子を特定することで 正確な診断とサブタイプに特化した治療が可能になります
研究 の 目的:
- 臨床的症状,分子病原性,診断戦略,筋肉縮の治療の進歩をレビューする.
- 患者ケアにおける遺伝子発見と サポート医療の影響を強調する
- 特にダッチェンヌ筋縮症の 新規治療法の開発について議論する
主な方法:
- 筋縮症に関する最新の文献のレビュー
- 遺伝子識別に基づく診断方法の分析
- 治療戦略と臨床試験の結果の検討
主要な成果:
- ほとんどの原因遺伝子を特定することで 精密な診断と 対応可能な治療が可能になります
- サポートケアにおける進歩は 生存率と生活の質を大幅に改善しました
- デュシェンヌ筋縮症のパーソナライズド治療を含む新しい治療法は,臨床開発を通して進歩しています.
結論:
- 遺伝学的な洞察は 筋縮の診断と管理に 変化をもたらしました
- 病原性の理解が深められれば 効果的な治療法が開発されるのです
- ターゲットを絞った治療法と 総合的なケアにより 患者の治療成果が向上する見通しです
関連する概念動画
Satellite Stem Cells and Muscular Dystrophy
2.3K
Satellite stem cells or myosatellite cells are quiescent stem cells that Alexander Mauro first identified in 1961. These cells are located between the sarcolemma, the plasma membrane of muscle fibers, and the basal lamina, the connective tissue sheath covering it. These mononucleated cells are activated in response to muscle injury, can transform into myoblasts, and may form or repair muscle fibers. Myosatellite cells can provide additional myonuclei for muscle regeneration or return to a...
2.3K
Disorders of the Skeletal Muscle
1.6K
The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
1.6K
Cross-bridge Cycle
121.8K
As muscle contracts, the overlap between the thin and thick filaments increases, decreasing the length of the sarcomere—the contractile unit of the muscle—using energy in the form of ATP. At the molecular level, this is a cyclic, multistep process that involves binding and hydrolysis of ATP, and movement of actin by myosin.
121.8K
Cardiomyopathy III: Hypertrophic Cardiomyopathy
325
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
325
Sex-linked Disorders
108.0K
Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.
108.0K
Formation of Muscle Fibers from Myoblasts
5.7K
De novo myogenesis, or the formation of muscle fibers, begins during the early embryonic stages. The skeletal muscle is formed from somites– blocks of embryonic cell layers. The somites are further divided into dermatomes, myotomes, sclerotomes, and syndetomes. Among these, the myotomes give rise to muscle fibers.
Muscle progenitor cells (MPCs) are formed from the myotomes. MPCs express genes that encode the transcription factors Pax3 and Pax7. Along with Pax 3/7, other transcription...
Muscle progenitor cells (MPCs) are formed from the myotomes. MPCs express genes that encode the transcription factors Pax3 and Pax7. Along with Pax 3/7, other transcription...
5.7K


