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Neuroprotective abilities of resveratrol and other red wine constituents against nitric oxide-related toxicity in cultured hippocampal neurons
Bastianetto S.; Zheng W.-H.; Quirion R.
2000-10-01
Source PublicationBritish Journal of Pharmacology
ISSN00071188
Volume131Issue:4Pages:711-720
Abstract

1 Animal and epidemiological studies suggest that polyphenol constituents of red wine possess antioxidant activities that favour protection against cardiovascular disease - the so-called. 'French paradox' - and possibly, central nervous system disorders such as Alzheimer's disease (AD) and ischaemia. 2 In the present study, the potential of three major red wine derived-polyphenols to protect against toxicity induced by the nitric oxide free radical donors sodium nitroprusside (SNP) and 3-morpholinosydnonimine (SIN-1) was examined in cultured rat hippocampal cells. 3 Both co- and post-treatments with either the stilbene resveratrol (5-25 μM) or the flavonoids quercetin (5-25 μM) and (+)-catechin (1-10 μM) were capable of attenuating hippocampal cell death and intracellular reactive oxygen species accumulation produced by SNP (100 μM and 1 mM, respectively). However, among the phenolic compounds tested, only the flavonoids afforded significant protection against 5 mM SIN-1-induced toxicity. 4 The effects of phenolic constituents were shared by Trolox (100 μM), a vitamin E analogue, but not by selective inhibitors of cyclo-oxygenases (COX) and lipoxygenases (LOX). 5 Among the phenolic compounds tested, only quercetin (10 μM) inhibited 100 μM SNP-stimulated protein kinase C (PKC) activation, whereas none of them were able to attenuate nitrite accumulation caused by SNP (100 μM). 6 Taken together, these data suggest that the neuroprotective abilities of quercetin, resveratrol, and (+)-catechin result from their antioxidant properties rather than their purported inhibitory effects on intracellular enzymes such as COX, LOX, or nitric oxide synthase. Quercetin, however, may also act via PKC to produce its protective effects.

Keyword(+)-catechin Cyclo-oxygenase Lipoxygenase Neuroprotection Nitric Oxide Protein Kinase c Quercetin Red Wine Resveratrol
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Indexed BySCI
WOS Research AreaPharmacology & Pharmacy
WOS SubjectPharmacology & Pharmacy
WOS IDWOS:000090037100011
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Cited Times [WOS]:238   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Health Sciences
AffiliationDouglas Hospital Research Center
Recommended Citation
GB/T 7714
Bastianetto S.,Zheng W.-H.,Quirion R.. Neuroprotective abilities of resveratrol and other red wine constituents against nitric oxide-related toxicity in cultured hippocampal neurons[J]. British Journal of Pharmacology,2000,131(4):711-720.
APA Bastianetto S.,Zheng W.-H.,&Quirion R..(2000).Neuroprotective abilities of resveratrol and other red wine constituents against nitric oxide-related toxicity in cultured hippocampal neurons.British Journal of Pharmacology,131(4),711-720.
MLA Bastianetto S.,et al."Neuroprotective abilities of resveratrol and other red wine constituents against nitric oxide-related toxicity in cultured hippocampal neurons".British Journal of Pharmacology 131.4(2000):711-720.
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