某些患上阿尔茨海默氏症的志愿者，其血液中一种名为妊娠带蛋白的物质含量非常高，甚至在症状出现前也是如此。
Levels of a substance called pregnancy zone protein had been unusually high, even before their symptoms appeared, in some of those who went on to develop Alzheimer's disease.
博士们正在用新的技术来检测淀粉样蛋白，它是一个可以引起斑块的蛋白导致阿尔茨海默病。
Doctors are also beginning to use new technology to detect amyloid, a plaque-causing protein that can lead to Alzheimer's disease.
结论：去整合蛋白和金属蛋白水解酶10和17的基因表达水平可能不是老龄人易发阿尔茨海默病的生物学基础。
CONCLUSION: The expression levels of ADAM 10 and ADAM 17 in hippocampus of old men may not be a part of biologic foundation of Alzheimer disease.
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