几年前，人类的基因曾被添加到老鼠身上，以创建唐氏症模型，让科学家研究这种疾病如何演化，这可能带来有潜力的治疗方法。

Several years ago, human genes were added to a mouse to create a model of Down's syndrome for scientists to study how the disease evolves, which could lead to potential treatments.

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以小鼠模型为研究对象，模拟人体疾病状态，是研究心血管疾病的重要手段之一。

Mice models were as research subjects to model human disease status, one of important methods for cardiovascular disease.

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