This seems to be because sirtuins control the abundance of a regulatory molecule called nicotinamide adenine diphosphate which, in turn, controls the release of energy in the mitochondria.

• 这是因为sirtuins控制着一种叫做烟碱腺嘌呤二磷酸的调节性分子的数量，而这种分子反过来又控制着线粒体中的能力释放。