<p>Solid black hyperbolic curve = average DI value for week 0; black solid square = average DI for week 0; open square = average DI for week 2; black solid triangle = average DI for week 4; open triangle = average DI for week 6. The hyperbola represents the curve on which the animals would have to remain to maintain a constant DI (DI = AIRg.SI = constant) and it is calculated as extrapolation of the average DI for week 0 over a range of insulin sensitivities.</p