Wipawan ThangniponNirut SuwannaNarisorn KitiyanantRungtip Soi-ampornkulPatoomratana TuchindaBamroong MunyooSaksit NobsathianMahidol University2018-06-112018-06-112012-04-04Neuroscience Letters. Vol.513, No.2 (2012), 229-23218727972030439402-s2.0-84858997499https://repository.li.mahidol.ac.th/handle/20.500.14594/15131Enhanced oxidative stress and inflammation play important roles in the pathogenesis of Alzheimer's disease (AD). Amyloid β-peptide (Aβ), a major component of amyloid plaques, is considered to have a causal role in the development and progress of AD by being the initiator of a pathological cascade leading to oxidative stress. The present study investigated the effect of N-trans-feruloyltyramine (NTF) purified from Polyalthia suberosa, an alkaloid shown to protect against oxidative stress and cell death. Pre-treatment of rat primary cortical cell cultures with 25-250μM NTF significantly attenuated 10μM Aβ 1-42 -induced neuronal death in a dose-dependent manner. Apoptotic cell death was demonstrated morphologically as well as by detection of the presence of activated caspase-3 and Bax, levels of which could be reduced by NTF pre-treatment. NTF also reduced production of reactive oxygen species induced by Aβ 1-42 . These findings suggest that the protective effect of NTF against Aβ 1-42 -induced neuronal death might be due to its antioxidative property. © 2012 Elsevier Ireland Ltd.Mahidol UniversityNeuroscienceArticleSCOPUS10.1016/j.neulet.2012.02.047