we investigated intestinal permeability in healthy adult volunteers , and in patients with crohn 's disease , ulcerative colitis , idiopathic sprue and idiopathic hyperamylasemia by oral administration of 10 g low molecular weight polyethylene glycol ( peg-400 ) and quantitation of its renal excretion over the subsequent 6 hours by high performance liquid chromatography ( gel permeation hplc ) .
C0021853
intestinal
C0009324
ulcerative colitis