Novel triterpenoids suppress inducible nitric oxide synthase (iNOS) and inducible cyclooxygenase (COX-2) in mouse macrophages. - Suh,N.; Honda,T.; Finlay,H.J.; Barchowsky,A.; Williams,C.; Benoit,N.E.; Xie,Q.W.; Nathan,C.; Gribble,G.W.; Sporn,M.B. (Cancer Res, 1998)