RETN and diabetes mellitus: Moreover, when the obese study participants were stratified according to the presence of MS and its components (hypertension, diabetes and hyperlipidemia), the mean serum resistin levels were higher in hypertensive patients (P = 0.0015, Fig. 1d) and in these who met the MS criteria (P = 0.0046, Fig. 1e) than in these who were normotensive and did not have MS, respectively.