SCD and Insulin resistance: The association of most resistance subtype pPS with higher monounsaturated fatty acids and lower saturated fatty acids in adipose tissues may be explained by the higher stearoyl-CoA desaturase 18:1/18:0 desaturase index reported in subjects with insulin resistance, which would result in a higher fraction of monounsaturated fatty acids (Sjögren et al., 2008; Warensjö et al., 2009).