INS and Glucose intolerance: Morita et al studied the effect of troglitazone treatment for dexamethasone-induced glucose intolerance in five healthy men, and showed that the 2-week troglitazone administration reduced the 3-day dexamethasone administration-induced increase of the mean area under the curve from 0 to 3 h for both plasma glucose and serum insulin concentrations during a 75-g oral glucose tolerance test [13].