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Semagacestat : ウィキペディア英語版 | Semagacestat
Semagacestat (LY450139) was a candidate drug for a causal therapy against Alzheimer's disease. It was originally developed by Eli Lilly and Élan, and clinical trials were conducted by Eli Lilly. Phase III trials included over 3000 patients,〔〔 but in August 2010, a disappointing interim analysis, in which semagacestat performed worse than the placebo, led to the trials being stopped. == Mechanism of action == β-Amyloid is a peptide of 39 to 43 amino acids. The isoforms with 40 and 42 amino acids (Aβ40/42) are the main constituents of amyloid plaques in the brains of Alzheimer's disease patients. β-Amyloid is formed by proteolysis of amyloid precursor protein (APP). Research on laboratory rats suggest that the soluble form of this peptide is a causative agent in the development of Alzheimer's. Semagacestat blocks the enzyme γ-secretase, which (along with β-secretase) is responsible for APP proteolysis.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Semagacestat」の詳細全文を読む
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