TGFB1 and sarcopenia: Immunosuppressive cytokines, such as TGF-β and IL-10, do seem to be involved in promoting many age-related pathological processes, e.g., immunosenescence (Salminen 2021a; Liu et al. 2023), cellular senescence (Tominaga and Suzuki 2019), fibrosis (Ren et al. 2023), and tissue atrophy/sarcopenia (Lan et al. 2024).