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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Neuromelanin ： ウィキペディア英語版 Neuromelanin Neuromelanin (NM) is a dark pigment found in the brain which is structurally related to melanin. It is a polymer of 5,6-dihydroxyindole monomers. Neuromelanin is expressed in large quantities in catecholaminergic cells of the substantia nigra pars compacta and locus coeruleus, giving dark color to the structures. ==Importance in humans== Neuromelanin is found in higher concentrations among humans than in other primates.〔 Neuromelanin-containing neurons in the substantia nigra undergo neurodegeneration during Parkinson's disease. Neuromelanin concentration increases with age, suggesting a role in neuroprotection (neuromelanin can chelate metals and xenobiotics+) or senescence. 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「Neuromelanin」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.