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The Journal of clinical investigation • 1997 | View Paper
“We conclude that the ability of troglitazone to upregulate adipocyte glucose transport, GLUT4 expression, and insulin signaling can contribute to its greater effect on whole-body glucose disposal.”
“The mean rate of glucose disposal increased by 54 percent during troglitazone therapy (P=0.006) and 13 percent during metformin therapy (P= 0.03 for the comparison within the group and between groups).”
The New England journal of medicine • 1998 | View Paper
“CONCLUSIONS The glycemic response after a glucose load is statistically and clinically significantly improved for patients with IGT treated with troglitazone.”
“The glucose , insulin, and C-peptide responses after a glucose load were significantly reduced at 6 and 12 weeks in the troglitazone treatment group.”
“ Basal glucose uptake as well as both basal and insulin-stimulated glycogen synthesis increased approximately 1.6- and approximately 2.5-fold after chronic TGZ treatment, respectively.”
Biochemical and biophysical research communications • 2001 | View Paper
“Cell-line and animal models indicate that troglitazone may decrease hepatic glucose output by decreasing the rate of gluconeogenesis in the liver or by increasing glycolysis.”
“ Troglitazone stimulates both glucose , and glibenclamide-induced insulin release at a concentration of 10−6 mol/l in these cells but, conversely, inhibits insulin secretion at 10−4 mol/l.”
“Interestingly, interfering with troglitazone-induced activation of AMPK by decreasing the expression of the enzyme using siRNA inhibited the stimulation of 2-deoxyglucose uptake by the TZD.Conclusions/interpretationWe propose that troglitazone acutely increases glucose flux in muscle via an AMPK-mediated increase in glucose phosphorylation.”