日本理化研究所科学家日前发现了一种酶 ,能够分解导致阿尔茨海默氏症的β型淀粉样蛋白。用老鼠作实验的结果表明 ,当这种酶不起作用时 ,老鼠就会得到阿尔茨海默氏症。一般认为 ,阿尔茨海默氏症是β型淀粉样蛋白随着人体衰老在脑中沉积的结果。日本科学家发现 ,在老鼠的脑内有 Japan’s Institute of Physical and Chemical scientists have discovered an enzyme that can break down beta-amyloid leading to Alzheimer’s disease. Experiments with mice showed that when the enzyme does not work, mice get Alzheimer’s disease. Alzheimer’s disease is generally believed to be the result of the deposition of beta-amyloid in the brain following aging. Japanese scientists found that there is in the rat brain