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<p>down its concentration gradient through <a href="page.php?w=glucose_transporter">glucose transporter</a>s (GLUT). Rodent beta cells primarily express the <a href="page.php?w=GLUT2">GLUT2</a> isoform, whereas human beta cells, although also expressing GLUT2, mainly make use of <a href="page.php?w=GLUT1">GLUT1</a> and <a href="page.php?w=GLUT3">GLUT3</a> isoforms. Since beta cells use <a href="page.php?w=glucokinase">glucokinase</a> to catalyze the first step of <a href="page.php?w=glycolysis">glycolysis</a>, metabolism only occurs around physiological</p><p>
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