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放射性核素示踪技术应用于心脏淀粉样变的研究进展

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摘要 淀粉样变是由于错误折叠成B片层的前体蛋白异常聚集在细胞外,导致组织器官功能障碍的一组异质性疾病[1].多种类型的前体蛋白可以作用于心脏,包括轻链免疫球蛋白、突变的遗传性甲状腺素运载蛋白、野生型甲状腺素运载蛋白、突变的载脂蛋白和血清淀粉样A蛋白等[2].心脏淀粉样变是由于这些不可溶的蛋白纤维异常聚集在胞外基质,同时不断浸润损伤心肌细胞,最终导致以进行性收缩性和舒张性心力衰竭为主要表现的心脏疾病.这些淀粉样物质在光镜下能被刚果红染成砖红色,偏振光下呈现特征性苹果绿,因而心内膜活检是心脏淀粉样变诊断的"金标准"[3].
出处 《中华心血管病杂志》 CAS CSCD 北大核心 2015年第10期919-922,共4页 Chinese Journal of Cardiology
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