Ghrelin Receptor Agonism and the Biology of Aging: MK-677's Role in Sarcopenia, Frailty, and Functional Decline
Age-related muscle wasting and functional decline represent one of the most clinically urgent challenges in geriatric medicine, and MK-677's capacity to restore youthful growth hormone pulsatility has positioned it as a candidate intervention in this space. This article examines the biological mechanisms through which ghrelin mimetics may counteract sarcopenia and frailty, while synthesizing clinical evidence from elderly cohort studies to evaluate real-world outcomes. The goal is to situate MK-