In this study, the anti-inflammatory effects of a tropolone derivative, 2,5-dihydroxycyclohepta-2,4,6-trienone (AD-4), were investigated. The anti-inflammatory potency of AD-4 was compared with that of indomethacin in carrageenan-induced inflammation models in rats. The effect on vascular permeability was also determined by hyaluronidase-induced capillary permeability. AD-4 decreased carrageenan-induced paw edema at doses of 3.62 x 10(2), 7.24 x 10(2), and 14.48 x 10(2) mu mol/kg by 45% (p < 0.001), 79% (p < 0.001), and 83% (p < 0.001), respectively, compared with the value of 49% (p < 0.001) for indomethacin (69.8 mu mol/kg). Additionally, AD-4 decreased hyaluronidase-induced capillary permeability significantly. In conclusion, AD-4 was determined to have anti-inflammatory effects with lower toxicity than indomethacin. Anti-inflammatory effect of AD-4 may be related to its effects on vascular permeability.
BALCI, M.;SUETBEYAZ, Y., TETRAHEDRON LETT., 1983, 24, N 3, 311-314
作者:BALCI, M.、SUETBEYAZ, Y.
DOI:——
日期:——
MIYAMOTO R.; TEZUKA T.; MUKAI T., TETRAHEDRON LETT. <TELE-AY>, 1975, NO 11, 891-894
作者:MIYAMOTO R.、 TEZUKA T.、 MUKAI T.
DOI:——
日期:——
TAKESHITA HITOSHI; MORI AKIRA; SUGIYAMA SHIGERU; TSUDA TOHRU, BULL. CHEM. SOC. JAP., 59,(1986) N 12, 3988-3990
作者:TAKESHITA HITOSHI、 MORI AKIRA、 SUGIYAMA SHIGERU、 TSUDA TOHRU