ポリミオサイトと皮膚ミオサイト
Marinos C Dalakas1, Reinhard Hohlfeld
1Neuromuscular Diseases Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892-1382, USA. dalakasm@ninds.nih.gov
Lancet (London, England)
|September 27, 2003
まとめ
皮膚筋炎やポリミオシス炎を含む炎症性筋病は,治療可能な得られた筋肉疾患です. これらの状態を区別することは,効果的な免疫療法治療と,筋肉のイシュケミアとネクロシスの管理の鍵です.
科学分野:
- 神経学 神経学とは
- 免疫学 免疫学とは
- 病理学 パトロジー
背景:
- 炎症性ミオパシーは得られたもので,治療可能な筋肉疾患である.
- 特徴に基づいて,皮膚筋炎,ポリ筋炎,インクルージョンボディ筋炎に分類されます.
- 正確な診断は,効果的な管理に不可欠です.
研究 の 目的:
- 炎症性ミオパシーの3つの主要なサブセットを区別するために.
- 根本的な病理学的メカニズムを解明する.
- 早期診断と治療の重要性を強調する.
主な方法:
- 臨床的,組織病理学的,免疫学的,および人口統計学的特徴分析.
- 補完体活性化とT細胞媒介の細胞毒性を含む病原性経路の検査.
- 診断基準と治療アプローチのレビュー.
主要な成果:
- Dermatomyositisは,マイクロ血管病症と補完介的毛細血管溶解を伴う.
- ポリミオサイトとインクルーション・ボディ・ミオサイトは,CD8+T細胞の侵入と筋肉繊維の死滅を特徴としています.
- インクルージョンボディミオシチスは,さらに真空形成とアミロイド堆積を示します.
- 粘着分子やサイトカインなどの分子因子は,病原菌発生に寄与する.
結論:
- 異なる病理学的メカニズムは,皮膚筋炎,ポリ筋炎,インクルージョンボディ筋炎の基礎となっている.
- 早期診断と免疫療法の開始は,皮膚筋炎とポリ筋炎の治療に不可欠です.
- 新種の免疫調節剤は,耐火性症例の治療に有望であることが示されています.
関連する概念動画
Myocarditis II: Clinical Features and Diagnostic Tests
Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
Myocarditis I: Introduction
Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
Skin Diseases and Disorders
Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Myasthenia Gravis: Overview and Treatment
Myasthenia gravis is a neuromuscular transmission disorder characterized by weakness and increased fatigability of skeletal muscles. It is an autoimmune disease affecting approximately one in 2000 people, where antibodies against the α1 subunit of nicotinic acetylcholine receptors are produced.
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which leads...
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which leads...
Disorders of the Skeletal Muscle
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...
Myasthenia Gravis ll: Pathophysiology
The disease process of myasthenia gravis begins at the neuromuscular junction, where antibodies attack key proteins needed for muscle activation. This immune reaction weakens signal transmission, leading to the characteristic muscle fatigue and weakness that define the condition.Immune-Mediated DamageIn most individuals, antibodies target acetylcholine receptors (AChRs) on the postsynaptic membrane of muscle cells. By blocking acetylcholine binding, these antibodies prevent the nerve signal...
