以下为句子列表：
英文: A new imaging agent that homes in on the gummy plaques and tangles that jam up the brains of Alzheimer patients has allowed doctors to see the disease in a living person for the first time, researchers said Wednesday.
中文: 本周三，研究人员说，一种能瞄准阿尔茨海默氏病患者脑损伤混乱团的造影剂，使医生首次能在患者活着时就了解病变情况。
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英文: After decades of progression, some of these atheromatous plaques may rupture and (along with the activation of the blood clotting system) start limiting blood flow to the heart muscle.
中文: 在发展的阶段，一些附着在血管壁上的粉瘤会破裂（随即激发了血液的凝结功能）开始限制血液流向心肌。
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英文: Amyloid forms into big globules called plaques in the brain of Alzheimer's disease patients, and the same thing happens (more slowly) in everyone's brains.
中文: 淀粉体在老年痴呆症病人的脑中形成很大的、称为斑块的小球，同样的事情也发生在每个人的脑中（较慢而已）。
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英文: Amyloid plaques are one of the characteristic structural abnormalities found in the brains of Alzheimer patients.
中文: 淀粉质色斑是在阿兹海默症患者的大脑中所发现的结构异常的特征之一。
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英文: Amyloid plaques form when a molecule called amyloid precursor protein (APP) is chopped up by two enzymes known as beta-secretase and gamma-secretase.
中文: 当一种叫淀粉样前体蛋白（APP）的分子被两种酶——分别叫作贝塔-分泌酶和伽玛-分泌酶——切断时就形成了淀粉样斑块。
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