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Updated: Jul 28, 2026
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Quantitative Measurement of GLUT4 Translocation to the Plasma Membrane by Flow Cytometry
Published on: November 7, 2010
Muscle glucose transporter (GLUT 4) gene expression during exercise.
P S MacLean1, D Zheng, G L Dohm
1Department of Biochemistry, School of Medicine, East Carolina University, Greenville, North Carolina 27858, USA.
Exercise and Sport Sciences Reviews
|November 7, 2000
Summary
Exercise increases glucose transporter (GLUT 4) expression in skeletal muscle. This review explores intracellular signals, like calcium and energy levels, that regulate this exercise-induced GLUT4 gene transcription.
Area of Science:
- Exercise physiology
- Molecular biology
- Skeletal muscle metabolism
Background:
- Exercise stimulates glucose uptake in skeletal muscle.
- Glucose transporter type 4 (GLUT 4) is crucial for muscle glucose uptake.
- Understanding GLUT 4 regulation is key to metabolic health.
Purpose of the Study:
- To review intracellular signals mediating exercise-induced GLUT4 gene transcription.
- To elucidate the molecular mechanisms behind exercise's effect on muscle glucose transport.
Main Methods:
- Literature review of studies on exercise and GLUT4 expression.
- Analysis of intracellular signaling pathways involved in gene transcription.
Main Results:
- Exercise-induced GLUT4 expression is linked to intracellular signals.
- Calcium concentrations and muscle energy charge are identified as key mediators.
- These factors likely influence GLUT4 gene transcription.
Conclusions:
- Intracellular calcium and energy status are critical for exercise-induced GLUT4 gene upregulation.
- These signals provide a molecular basis for exercise's metabolic benefits in skeletal muscle.
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