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. 2011 Apr 22;34(Suppl 2):S225–S230. doi: 10.2337/dc11-s225

Figure 1.

Figure 1

Administration of exogenous insulin provides a different insulin gradient than that occurring after endogenous insulin secretion. Endogenous insulin secretion acts initially on the liver where a major portion of it is taken up and <50% reaches the peripheral tissues. Exogenously administered insulin must circulate through the peripheral tissues before it can reach the liver; therefore, peripheral hyperinsulinemia is necessary to attain adequate insulin to regulate the liver.