Muscle ultrastructure
- Structural plasticity of the avian pectoralis: a case for geometry and the forgotten organelle
Summary: The plasticity of the avian pectoralis muscle provides the perfect system with which to address generalizable principles relating to the underlying structure of muscle and how it changes within the organism.
- Muscle myonuclear domain, but not oxidative stress, decreases with age in a long-lived seabird with high activity costs
Summary: A long-lived seabird, the thick-billed murre, demonstrated a lack of ‘normal’ physiological aging, showing no changes with age in various oxidative stress parameters and muscle fiber diameter; however, there was a decline in myonuclear domain with age.