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. Author manuscript; available in PMC: 2018 Apr 9.
Published in final edited form as: Physiol Rev. 2018 Jan 1;98(1):117–214. doi: 10.1152/physrev.00008.2017

Figure 26.

Figure 26

Vicious cycle of hyperglycemia and GIIS initiating another vicious cycle of increased lipolysis/elevated NEFA and reduced GIIS. The combination of these two vicious cycles may account for the progression of T2DM. The slight initial increase in plasma glucose that initiates the vicious cycles may be caused by age-dependent insulin resistance or reduced β-cell metabolism and ATP production that culminates in T2DM. See Section X.A.3.