摘要
由欧洲科学家组成的两个研究小组声称,他们发现了跟老年痴呆症有紧密关联的新型遗传变体。科学家们认为，这些变体约占老年痴呆症遗传风险的20％，而且可能帮助人类更好地了解该病的生物学特征。在威尔士加的夫大学的朱莉·威廉斯的带领下，其中一个研究小组扫描了约19,000名患者的基因组，发现有两种变体与老年痴呆症具有显著关联，
Two teams of European scientists say they have discovered new genetic variants associated with Alzheimer＇s disease. The variants account for about 20 percent of the genetic risk of the disease, and may lead to a better understanding of entists say. its biology, the scientists say.
