HDL from controls counteracted the inhibitory effect of ox-LDL on vasodilatation ( maximal relaxation -LSB- Emax -RSB- = @ % @ % vs @ % @ % , P = @ ) , whereas HDL from type @ diabetic patients did not ( Emax = @ % @ % vs @ % @ % -LSB- P = @ -RSB- and @ % @ % vs @ % @ % -LSB- P = @ -RSB- for the rosiglitazone and pioglitazone group , respectively ) .