消极性肌肉变质症 (Dystrophinopathies) 是一种肌肉变质的疾病.
概括
肌肉发育不良症,就像杜恩和贝克尔肌肉发育不良症一样,是X关联的肌肉疾病. 新的基因疗法提供了希望,但它们的长期影响和安全性需要进一步研究.
科学领域:
- 遗传学 遗传学 是一个
- 神经学 神经学
- 分子生物学分子生物学
背景情况:
- 肌痛性肌痛性疾病是X链接的衰退性肌肉疾病,由DMD基因突变引起,导致肌痛性肌痛缺乏症.
- 这些疾病包括杜恩肌肉发育不良,贝克尔肌肉发育不良,扩张性心肌病,以及表现为女性携带者.
- 从历史上看,管理依赖于支持性护理和皮质类固醇,药理选择有限.
研究的目的:
- 为了提供一种综述的dystrophinopathies,包括他们的遗传基础,临床表现,和诊断方法.
- 讨论管理策略的演变,从支持性护理到新兴的基因疗法.
- 突出最近FDA批准的治疗方法和该领域正在进行的研究.
主要方法:
- 综述了关于肌痛性肌痛病的文献,重点关注遗传原因,临床表现和治疗进展.
- 诊断工作的分析,包括临床评估和遗传检测.
- 讨论杜申尼和贝克尔肌肉发育不良症的当前和新型治疗方法.
主要成果:
- 肌肉衰弱,小腿缩和肌酸激酶水平升高的现象.
- 基因检测对于诊断至关重要,并根据突变类型和预测的严重程度指导治疗选择.
- 最近FDA批准的药物包括子跳转,微型基因疗法和杜氏肌肉衰竭的胰岛素脱乙酶抑制剂.
结论:
- 发育不良症需要一个全面的诊断和管理方法,整合临床评估和遗传见解.
- 新兴的基因疗法代表了显著的进步,尽管它们的长期疗效和安全性状况仍在研究中.
- 为了了解新疗法对这些衰弱肌肉疾病的自然史的影响,继续进行研究是必不可少的.
相关概念视频
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
Lysosomal Hydrolases
4.4K
Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
4.4K
Sex-linked Disorders
108.1K
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.
108.1K
Cardiomyopathy I: Introduction and Classification
465
Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
465
Cross-bridge Cycle
121.9K
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.
121.9K


