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アミロイドーシスは,不溶化した線維状の蛋白質(アミロイド)が組織に沈着して,細胞・組織・臓器の機能障害を引き起こす疾患群である。沈着したアミロイドは,コンゴーレッド染色で赤橙色に染まり,偏光顕微鏡下では緑色偏光を呈する。沈着したアミロイドは常に沈着と融解といった代謝回転を受けており,有効な治療法がなされれば,いくつかのアミロイドーシスでは沈着アミロイドの退縮が期待できる。
Abstract
Amyloidosis refers to disorders that cause organ failure due to amyloid deposition. Deposited amyloid is clearly stained by Congo red and is detected by apple-green birefringence under polarized light. Amyloid fibril proteins are very stable, but several recent studies have revealed that amyloid deposition and the clearance of fibrils cause the steady turnover of deposited amyloid proteins. Therefore, in several amyloidosis disorders, especially primary AL, reactive AA, and transthyretin-related amyloidosis, effective therapies are expected to cause the regression of tissue-deposited amyloid.
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