Reflecting an expeditious increase in elder patients with sarcopenia notably in industrialized countries, endocrinologic research on molecular basis of muscle mass and strength has attracted great attention in both academic and clinical fields. In this issue, Dr. Tomoya Onishi, Professor Yuuki Imai and colleague provide fresh insight into unexpected interplay between androgens and epidermal growth factor receptor (EGFR) EGFR in the molecular pathophysiology of shrinkage of muscle mass. This excellent article provides all endocrinologists with updated viewpoint of sarcopenia science.
![EJ24-0410](https://endocrine-j.jp/wp-content/uploads/EJ24-0410FA.jpg")
Recommendation from the Editor in Chief
Reflecting an expeditious increase in elder patients with sarcopenia notably in industrialized countries, endocrinologic research on molecular basis of muscle mass and strength has attracted great attention in both academic and clinical fields. In this issue, Dr. Tomoya Onishi, Professor Yuuki Imai and colleague provide fresh insight into unexpected interplay between androgens and epidermal growth factor receptor (EGFR) EGFR in the molecular pathophysiology of shrinkage of muscle mass. This excellent article provides all endocrinologists with updated viewpoint of sarcopenia science.