PMID- 12841651 OWN - NLM STAT- MEDLINE DCOM- 20040415 LR - 20190818 IS - 0300-8177 (Print) IS - 0300-8177 (Linking) VI - 247 IP - 1-2 DP - 2003 May TI - Genistein protects primary cortical neurons from iron-induced lipid peroxidation. PG - 219-22 AB - Neuroprotective role of isoflavones in particular genistein might be resulted from their antioxidant activities in addition to their estrogenic actions. In the present study, we investigated effect of genistein on iron-induced free radical reaction in cultured cortical neurons. Thiobarbituric-acid-reactive species (TBARS) and superoxide dismutase (SOD) were measured after incubation of the cells with different concentrations of genistein in the absence or presence of iron (12.5 microM) for 24 h. Genistein at 100 microM significantly reduced the iron-induced TBARS, implying that genistein has an inhibitory role on iron-induced lipid peroxidation. Also, genistein (100 microM) led to a relatively higher SOD level than that in iron treatment although no significant difference was found. The findings imply that the antioxidative effect of genistein is partly associated with its neuroprotective function. FAU - Ho, Kwok Ping AU - Ho KP AD - Laboratory of Brain Iron Metabolism, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong, Peoples Republic of China. bczmqian@polyu.edu.hk FAU - Li, Lin AU - Li L FAU - Zhao, Li AU - Zhao L FAU - Qian, Zhong Ming AU - Qian ZM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - Mol Cell Biochem JT - Molecular and cellular biochemistry JID - 0364456 RN - 0 (Antioxidants) RN - 0 (Free Radicals) RN - 0 (Thiobarbituric Acid Reactive Substances) RN - DH2M523P0H (Genistein) RN - E1UOL152H7 (Iron) RN - EC 1.15.1.1 (Superoxide Dismutase) SB - IM MH - Animals MH - Antioxidants/pharmacology MH - Cells, Cultured MH - Cerebral Cortex/cytology/*drug effects/metabolism MH - Free Radicals/metabolism MH - Genistein/*pharmacology MH - Iron/*pharmacology MH - Lipid Peroxidation/*drug effects MH - Neurons/*drug effects/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Superoxide Dismutase/drug effects/metabolism MH - Thiobarbituric Acid Reactive Substances/metabolism EDAT- 2003/07/05 05:00 MHDA- 2004/04/16 05:00 CRDT- 2003/07/05 05:00 PHST- 2003/07/05 05:00 [pubmed] PHST- 2004/04/16 05:00 [medline] PHST- 2003/07/05 05:00 [entrez] AID - 10.1023/a:1024142004575 [doi] PST - ppublish SO - Mol Cell Biochem. 2003 May;247(1-2):219-22. doi: 10.1023/a:1024142004575.