yana-notes

GLUT4

links: reference: 8-25-2021

GLUT4 #

  • The Insulin-regulated GLUT. Creatine and DHT boosts it.
  • Liberated from vesicles via Protein Kinase C (via PI3K->PDK1/2)
  • Exercise and insulin sensitivity: a review
    • Up to two hours after exercise, glucose uptake is in part elevated due to insulin independent mechanisms, probably involving a contraction-induced increase in the amount of GLUT4 associated with the plasma membrane and T-tubules.
    • A single bout of exercise can increase insulin sensitivity for at least 16 h post exercise in healthy as well as NIDDM subjects. Recent studies have accordingly shown that acute exercise also enhances insulin stimulated GLUT4 translocation
  • Glucose, exercise and insulin: emerging concepts
    • Other glucose transporter isoforms such as GLUT1 and 5 are expressed at much lower levels than GLUT4 in skeletal muscle.