Elie Antoun, Emma S Garratt, Andrea Taddei, Mark A Burton, Sheila J Barton, Phil Titcombe, Leo D Westbury, Alicia Baczynska, Eugenia Migliavacca, Jerome N Feige, Holly E Sydall, Elaine Dennison, Richard Dodds, Helen C Roberts, Peter Richardson, Avan A Sayer, Sarah Shaw, Cyrus Cooper, Joanna D Holbrook, Harnish P Patel, Keith M Godfrey, Karen A Lillycrop
BACKGROUND: Sarcopenia is the age-related loss of muscle mass, strength, and function. Epigenetic processes such as DNA methylation, which integrate both genetic and environmental exposures, have been suggested to contribute to the development of sarcopenia. This study aimed to determine whether differences in the muscle methylome are associated with sarcopenia and its component measures: grip strength, appendicular lean mass index (ALMi), and gait speed. METHODS: Using the Infinium Human MethylationEPIC BeadChip, we measured DNA methylation in vastus lateralis muscle biopsies of 83 male participants (12 with sarcopenia) with a mean (standard deviation) age of 75...
December 4, 2021: Journal of Cachexia, Sarcopenia and Muscle