Neither incretin effect ( @ % ( without DPP@ inhibitor ) vs @ % ( with DPP@ inhibitor ) , P = @ ) , glucagon responses ( @ vs @pmol/lmin , P = @ ) , GIGD ( @ vs @ % , P = @ ) nor gastric emptying ( Tmax for plasma paracetamol : @ vs @min , P = @ ) changed following DPP@ inhibition .