Rhythmic Insulin Induced by Eating During the Active Phase Promotes Skeletal Muscle Growth via Synchronizing Mitochondrial Energy Supply Rhythm and Cell Cycle

May 12, 2025FASEB journal : official publication of the Federation of American Societies for Experimental Biology

Eating During Active Times Causes Insulin Rhythms That Help Muscle Growth by Aligning Energy Supply and Cell Growth Cycles

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Abstract

Day-restricted feeding disrupted insulin rhythm, while night-restricted feeding enhanced insulin rhythm and promoted skeletal muscle growth.

  • Eating during the inactive period may disrupt metabolic rhythms in skeletal muscle.
  • Nocturnal rabbits experienced altered insulin rhythms based on feeding timing.
  • Night-restricted feeding is associated with enhanced skeletal muscle growth.
  • Analysis revealed enrichment of circadian rhythm and pancreatic secretion pathways in muscle tissue.
  • Rhythmic insulin may synchronize mitochondrial energy production with cell cycle progression, promoting muscle cell growth.

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