Anti-oxidant activities of curcumin and related enones
作者:Waylon M. Weber、Lucy A. Hunsaker、Steve F. Abcouwer、Lorraine M. Deck、David L. Vander Jagt
DOI:10.1016/j.bmc.2005.03.035
日期:2005.6
anti-oxidant properties. There are conflicting reports concerning the structural/electronic basis of the anti-oxidant activity of curcumin. Curcumin is a symmetrical diphenolic dienone. A series of enone analogues of curcumin were synthesized that included: (1) curcumin analogues that retained the 7-carbon spacer between the aryl rings; (2) curcumin analogues with a 5-carbon spacer; and (3) curcumin
COMPOUNDS USEFUL AGAINST KINETOPLASTIDEAE PARASITES
申请人:Davioud-Charvet Elisabeth
公开号:US20120214996A1
公开(公告)日:2012-08-23
Dibenzylidene and heterobenzylideneacetone derivatives, related 4-piperidones, related 4-thiopyranones and the corresponding sulfinyl- and sulfonyl-analogues for their use for prophylaxis or treatment of trypanosomiasis and leishmaniasis.
Anti-melanogenesis screening of 47 synthesized curcumin-like diarylpentanoid analogues was performed to show that some had a potent inhibitory effect on the melanogenesis in B16 melanoma cells. Their actions were considered to be mostly due to tyrosinase inhibition, tyrosinase expression inhibition, and melanin pigment degradation. The structure–activity relationships of those curcumin-like diarylpentanoid analogues which inhibited the melanogenesis and tyrosinase activity were also discussed. Of those compounds assayed, (2E,6E)-2,6-bis(2,5-dimethoxybenzylidene)cyclohexanone showed the most potent anti-melanogenesis effect, the mechanism of which is considered to be the degradation of the melanin pigment in B16 melanoma cells, affecting neither the tyrosinase activity nor tyrosinase expression.