首先，他引入了一种能够导致肌生成抑制素的受体受到抑制的基因，使肌肉细胞的细胞膜表面的分子收到停止生长的信息。

First, he has introduced a gene that turns out a stunted version of the myostatin receptor, the molecule that sits in the surface membrane of muscle cells and receives the message to stop growing.

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其中用于提高耐力的主要有促红细胞生成素、血管内皮生长因子等，用于提高肌肉力量的有胰岛素样生长因子-I、肌肉生长抑制素、生长激素、机械生长因子等。

In those gene doping, EPO and VEGF are used to enhance the endurance performance; IGF-I, myostatin, GH and MGF are used to improve muscle strength.

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