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Neurotox Res. 2012 Jul;22(1):1-15. doi: 10.1007/s12640-011-9295-2. Epub 2011 Dec 23.

Rutin protects dopaminergic neurons from oxidative stress in an animal model of Parkinson's disease.

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Neurotoxicology Laboratory, Department of Medical Elementology & Toxicology, Jamia Hamdard (Hamdard University), Hamdard Nagar, New Delhi, 110062, India.


This study was undertaken to investigate the neuroprotective effects of rutin (vitamin P) on 6-hydroxydopamine (6-OHDA)-induced Parkinson's disease (PD) in rats. Oxidative stress and inflammation is an important event, play a crucial role in neurodegenerative diseases. Rutin has been shown to have antioxidant and anti-inflammatory actions, and thus was tested for its beneficial effects using 6-OHDA-induced PD rat model. Male Wistar rats were pre-treated with rutin (25 mg/kg bwt, orally) for 3 weeks and subjected to unilateral intrastriatal injection of 6-OHDA (10 μg in 0.1% ascorbic acid in normal saline). Three weeks after 6-OHDA infusion, rats were tested for neurobehavioral activity, and were killed after 4 weeks of 6-OHDA infusion for the estimation of thiobarbituric acid reactive substances, glutathione, and its dependent enzymes (glutathione peroxidase and glutathione reductase), dopamine (DA) and its metabolite 3,4-dihydroxyphenyl acetic acid. The increase in 6-OHDA-induced rotations and deficits in locomotor activity and motor coordination and decrease in antioxidant level, DA content and its metabolite and increase in the number of dopaminergic D2 receptors in striatum were protected significantly with lesioned group pre-treated with rutin. These findings were further supported by the histopathological and immunohistochemical findings in the substantia nigra that showed that rutin protected neurons from deleterious effects of 6-OHDA. These results suggest that the consumption of rutin, which is novel vitamin, may have the possibility of protective effect against the neurological disorder such as PD.

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