结论尿毒症患者血清中存在红细胞生成抑制因子，其对红系造血祖细胞的抑制作用具有剂量依赖性。

Conclusion The erythropoiesis inhibitors might exist in uremia sera which had a dose-dependent inhibitory effects on CFU-E and BFU-E proliferations.

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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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