SCD and type 2 diabetes mellitus: The low expression of HILPDA and SCD in T2DM are also highly similar, and they were mainly related to the synthesis, metabolism and degradation of substances, such as the biosynthesis of unsaturated fatty acids, terpenoid backbone biosynthesis, fatty acid metabolism, beta alanine metabolism, pyruvate metabolism, selenoamino acid metabolism, and valine leucine and isoleucine degradation.