concentrations of prostaglandin e2 , prostaglandin f2 ( pgf2 alpha ) , and the stable metabolic products of prostacyclin and thromboxane a2 , 6-keto-pgf1 alpha and thromboxane b2 ( txb2 ) , respectively , were decreased 60-85 % in the gallbladder tissue of animals with crystals and gallstones compared to controls .
C0016976
gallbladder tissue
C0008350
gallstones