Single‐Nucleus Atlas of Spinal Sarcopenia Patients Reveals Disruption of Quiescent and Regenerative Satellite Cell Niches in Fatty‐Infiltrated Muscle
ABSTRACT Severe muscle fat infiltration is a contributing factor to muscle loss, particularly in the spinal sarcopenia population. However, the underlying mechanism largely remains elusive. Here, we identified the intramuscular fat fraction (IMFF), rather than perimuscular fat fraction, as an independent determinant of...