Muckle-Wells syndrome
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| Muckle-Wells syndrome Classification and external resources | |
| ICD-10 | E85.0, L50.8 |
|---|---|
| ICD-9 | xxx |
| OMIM | 191900 |
| DiseasesDB | 30159 |
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Muckle-Wells syndrome (MWS), also known as Urticaria-deafness-amyloidosis (UDA)[1], is a rare autosomal dominant disease which causes sensorineural deafness, recurrent hives, and can lead to amyloidosis. Individuals with MWS often have episodic fever, chills, and painful joints. As a result, MWS is considered a type of periodic fever syndrome. MWS is caused by a defect in the CIAS1 gene which creates the protein cryopyrin. MWS is closely related to two other syndromes, familial cold urticaria and neonatal onset multisystem inflammatory disease — in fact, all three are related to mutations in the same gene.
MWS occurs when a mutation in the CIAS1 gene leads to increased activity of the cryopyrin protein. This protein is partly responsible for the body's response to damage or infection. During these states, a chemical called interleukin 1β is produced by an immune cell known as a macrophage. This chemical interacts with a receptor on the surface of other immune cells to produce symptoms of inflammation such as fever, arthritis, and malaise. In MWS, the increased activity of cryopyrin leads to an increase in interleukin 1β. This leads to inflammation all throughout the body with the associated symptoms.[1] The chronic inflammation present in MWS over time can lead to deafness. In addition, the prolonged inflammation can lead to deposition of proteins in the kidney, a condition known as amyloidosis.
MWS was first described in 1962 by Thomas James Muckle and Michael Vernon Wells.[1] Treatment of MWS with anakinra, an interleukin 1 receptor antagonist, can lead to an improvement in the hearing loss.[1]
References
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
