U. Knaus et H. Wagner, EFFECTS OF BOSWELLIC-ACID OF BOSWELLIA-SERRATA AND OTHER TRITERPENIC ACIDS ON THE COMPLEMENT-SYSTEM, Phytomedicine, 3(1), 1996, pp. 77-80
beta-boswellic acid (BA), one major constituent of the resin of Boswel
lia serrata and other triterpenic acids of plant origin (crataegolic-,
ursolic-, oleanolic- and glycyrrhetic acid) were found to possess ant
i-complementary activity in the classical and in the alternative compl
ement pathway. Significant reduction of immunohemolysis in vitro was o
bserved at BA concentrations between 0.005-0.1 mM with an IC50 value o
f about 10 mu mol/1.