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| Eosinophilia-myalgia syndrome ： ウィキペディア英語版 |
Eosinophilia–myalgia syndrome
Eosinophilia–myalgia syndrome (EMS) is an incurable and sometimes fatal flu-like neurological condition linked to the ingestion of the dietary supplement L-tryptophan. The risk of developing EMS increases with larger doses of tryptophan and increasing age.〔 Some research suggests that certain genetic polymorphisms may be related to the development of EMS. The presence of eosinophilia is a core feature of EMS, along with unusually severe myalgia (muscle pain).
== Initial outbreak ==
The first case of Eosinophilia–myalgia syndrome was reported to the Centers for Disease Control and Prevention (CDC) in November 1989, although some cases had occurred as early as 2–3 years before this.〔 In total, more than 1,500 cases of EMS were reported to the CDC, as well as at least 37 EMS-associated deaths. After preliminary investigation revealed that the outbreak was linked to intake of tryptophan, the U.S. Food and Drug Administration (FDA) banned most tryptophan from sale in the US in 1991, and other countries followed suit.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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