1. Doctors  say high blood pressure, heart disease, smoking, diabetes and high  cholesterol all increase the risk of stroke.

2. They  have identified the first gene linked to common forms of stroke. These  strokes are caused by a blockage in the flow of blood to the brain.\

3. The  discovery is part of a larger genetic study of the Icelandic people. Their  family histories have been unusually well documented.

4. A  protein produced by the gene influences the movement and growth of muscle cells.  This influence causes the cells to grow inside arteries and restrict the flow  of blood.

5. They  say treatments are possible in the future to reduce the risk of stroke. Such  drugs could target the protein produced by the gene.

医生说，高血压、心脏病、吸烟、糖尿病和高胆固醇都增加中风的风险。 

他们发现了与普通中风形式相关的第一个基因。这些中风是由流向大脑的血液受阻而引起的。

这一发现是对冰岛人一项较大遗传研究的一部分。他们的家庭历史一直记载得非常好。

一个由基因产生的蛋白质影响肌肉细胞的运动和生长。这种影响导致了动脉内细胞生长并限制血液流动。

他们说，在未来有可能进行治疗以减少中风的风险。这类药物可以针对这种基因产生的蛋白质。