A recent study showed for the first time that a variant of the SLCO1B1 gene encoding OATP1B1-dependent transport of statins in the liver did not have significant association with the risk of T2D (48) whereas variants of the HMGCR gene was associated with a 2-6% elevated risk of T2D (50). Here, SLCO1B1 is linked to type 2 diabetes mellitus.