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Inflammatory myopathy, also known as idiopathic inflammatory myopathy (IIM), is disease featuring muscle weakness, inflammation of muscles , and in some types, muscle pain . The cause of much inflammatory myopathy is unknown ( idiopathic ), and such cases are classified according to their symptoms and signs , electromyography , MRI , and ...
Statin-associated autoimmune myopathy (SAAM), also known as anti-HMGCR myopathy, is a very rare form of muscle damage caused by the immune system in people who take statin medications. [1] However, there are cases of SAAM in patients who have not taken statin medication, and this can be explained by the exposure to natural sources of statin ...
The pathophysiology of IIMs is not well understood. Muscle weakness can be caused by a single or combined effect on muscle tissue by inflammation, inflammatory infiltrates, muscle atrophy, metabolic abnormalities that indicate disordered energy metabolism, [2] and possibly neuropathy, [13] among others. Therefore, physical exercise has the ...
Multiple genetic diseases that feature inclusion bodies have been grouped into "hereditary inclusion body myopathies (hIBM)." [6] Myopathy is used because inflammation is not a prominent finding. There is inconsistency in what individual disease entities fall under the category of hIBM. [6]
Mitochondrial myopathies are diseases caused by mutations related to mitochondria, and thus are generally inherited from the mother with variable expressivity due to heteroplasmy. Kearns–Sayre syndrome; Mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS) Myoclonic epilepsy with ragged red fibers (MERRF)
Dermatomyositis is a form of systemic connective tissue disorder, a class of diseases that often involves autoimmune dysfunction. [15] [23] It has also been classified as an idiopathic inflammatory myopathy, along with polymyositis, necrotizing autoimmune myositis, cancer-associated myositis, and sporadic inclusion body myositis. [24]
Myopathies in systemic disease results from several different disease processes including endocrine, inflammatory, paraneoplastic, infectious, drug- and toxin-induced, critical illness myopathy, metabolic, collagen related, [3] and myopathies with other systemic disorders. Patients with systemic myopathies often present acutely or sub
This symptom is the source of the "-myositis" part of the name of the disease ("myo" = muscle, "-itis" = inflammation of). Muscle Inflammation causes muscle weakness , which can cause fatigue , clumsiness , not keeping up physically with peers, and eventually inability to perform tasks like climbing stairs, lifting objects, and performing other ...