The drug, called azelaprag, mimics apelin, a hormone secreted after exercise that acts on skeletal muscle, the heart and the central nervous system to regulate metabolism and promote muscle regeneration.

这种名为阿泽拉普拉格的药物模仿了阿扑素，这是一种运动后分泌的激素，作用于骨骼肌、心脏和中枢神经系统， 调节新陈代谢， 促进肌肉再生。

In the short term, there is muscle regeneration resulting in muscle fibers of different sizes, but in the long term, the muscles atrophy and are infiltrated by fat and fibrotic tissue, which leaves them really weak.

短期内，肌肉再生造成大小参差的肌纤维细胞，但是长期下去，肌肉萎缩并且脂肪组织和结缔纤维组织增生渗入其间，导致肌肉无力。