title: Cytotoxicity, antioxidant and anti-inflammatory activities of curcumins I-III from Curcuma longa.
abstract: Curcumin I, curcumin II (monodemethoxycurcumin) and curcumin III (bisdemethoxycurcumin) from Curcuma longa were assayed for their cytotoxicity, antioxidant and anti-inflammatory activities. These compounds showed activity against leukemia, colon, CNS, melanoma, renal, and breast cancer cell lines. The inhibition of liposome peroxidation by curcumins I-III at 100 microg/ml were 58, 40 and 22%, respectively. The inhibition of COX-I and COX-II enzymes by the curcumins was observed. Curcumins I-III were active against COX-I enzyme at 125 microg/ml and showed 32, 38.5 and 39.2% inhibition of the enzyme, respectively. Curcumins I-III also showed good inhibition of the COX-II enzyme at 125 mg/ml with 89.7, 82.5 and 58.9% inhibition of the enzyme, respectively.
authors.affiliation: Department of Horticulture and National Food Safety and Toxicology Center, Michigan State University, East Lansing 48824, USA.
authors.forename: R S
authors.initials: RS
authors.lastname: Ramsewak
authors.forename: D L
authors.initials: DL
authors.lastname: DeWitt
authors.forename: M G
authors.initials: MG
authors.lastname: Nair
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology*; D000972:Antineoplastic Agents, Phytogenic / Q000494:pharmacology*; D000975:Antioxidants / Q000494:pharmacology*; D003373:Coumaric Acids / Q000494:pharmacology; D003474:Curcumin / Q000031:analogs & derivatives / Q000494:pharmacology*; D016861:Cyclooxygenase Inhibitors / Q000494:pharmacology*; D036381:Diarylheptanoids; D006801:Humans; D014407:Tumor Cells, Cultured / Q000187:drug effects; D019862:Zingiberales
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D000972:Antineoplastic Agents, Phytogenic; D000975:Antioxidants; D003373:Coumaric Acids; D016861:Cyclooxygenase Inhibitors; D036381:Diarylheptanoids; C034786:bisdemethoxycurcumin; D003474:Curcumin; C050229:demethoxycurcumin