例如，基因对于胰岛素增长因子能够导致肌肉量的增加。

For example, genes for insulin-like growth factor could enhance muscle mass.

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然而，基因活动使固有细菌的碳水化合物分解量增加。

However, the activity of genes that allow the native bacteria to break down carbohydrates did increase.

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根据发表在《自然遗传学》的有关发现，有些人生来携带好吃基因，这些基因控制着胃口、对食物的满足感以及卡路里的燃烧量。

The findings, published in Nature Genetics, suggest that some people are effectively hardwired to overeat, through genes that control appetite, satiety and how many calories they burn.

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You're taking a normal gene and you're over expressing it or expressing it more abundantly than normal in one particular spot of the body to have an effect.

我们在讨论一个正常基因的过表达,也就是在体内某一点的表达量,大大超过正常水准从而产生疗效

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