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Original

Protective effect of resveratrol against lipopolysaccharide-induced oxidative stress in rat brain

, , , , &
Pages 1089-1094 | Received 05 Dec 2008, Accepted 29 Sep 2009, Published online: 05 Nov 2009
 

Abstract

Primary objective: To study the protective effect of resveratrol on endotoxemia-induced neurotoxicity.

Methods: Rats were pre-treated during 7 days with 20 mg kg−1 body weight (b.w.) resveratrol and challenged with a single dose of lipopolysaccharide (LPS: 8 mg kg−1 b.w.) for 24 hours. Brains were harvested to determine LPS-induced lipoperoxidation level, antioxidant enzyme activities, nitric monoxide (NO) and iron distribution as well as the impact of resveratrol on these parameters.

Results: Resveratrol counteracted LPS-induced brain malondialdehyde (MDA) level and antioxidant enzyme activities depletion as superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD). Resveratrol also reversed LPS-induced brain and plasma NO elevation as well as iron sequestration from plasma to brain compartment.

Conclusion: The data suggest that resveratrol is capable of alleviating LPS-induced neurotoxicity by a mechanism that may involve iron shuttling proteins.

Abbreviations:
BHT=

Butylated hydroxytoluene

CAT=

Catalase

LPS=

Lipopolysaccharide

MDA=

Malondialdehyde

NO=

Nitric oxide

NOS=

Nitric oxide synthase

POD=

Peroxidase

ROS=

Reactive oxygen species

RVT=

Resveratrol

SOD=

Superoxide dismutase

TBA=

Thiobarbituric acid

TCA=

Trichloroacetic acid

Abbreviations:
BHT=

Butylated hydroxytoluene

CAT=

Catalase

LPS=

Lipopolysaccharide

MDA=

Malondialdehyde

NO=

Nitric oxide

NOS=

Nitric oxide synthase

POD=

Peroxidase

ROS=

Reactive oxygen species

RVT=

Resveratrol

SOD=

Superoxide dismutase

TBA=

Thiobarbituric acid

TCA=

Trichloroacetic acid

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