Abstract
Parkinson’s disease (PD) is a neurodegenerative disorder due to loss of dopaminergic neurons in the substantia nigra pars compacta (SNC). PD finally leads to incapacitating symptoms including motor and cognitive deficits. This study was undertaken to assess protective effect of the flavanone hesperetin against striatal 6-hydroxydopamine lesion and to explore in more detail some underlying mechanisms including apoptosis, inflammation and oxidative stress. In this research study, intrastriatal 6-hydroxydopamine (6-OHDA)-lesioned rats received hesperetin (50 mg/kg/day) for 1 week. Hesperetin reduced apomorphine-induced rotational asymmetry and decreased the latency to initiate and the total time on the narrow beam task. It also attenuated striatal malondialdehyde and enhanced striatal catalase activity and GSH content, lowered striatal level of glial fibrillary acidic protein as an index of astrogliosis and increased Bcl2 with no significant change of the nuclear factor NF-kB as a marker of inflammation. Hesperetin treatment was also capable to mitigate nigral DNA fragmentation as an index of apoptosis and to prevent loss of SNC dopaminergic neurons. This study indicated the protective effect of hesperetin in an early model of PD via attenuation of apoptosis, astrogliosis marker and oxidative stress and it may be helpful as an adjuvant therapy for management of PD at its early stages.
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This research study was financially supported by a grant from Neurophysiology Research Center affiliated to Shahed University (Tehran, Iran) in 2013.
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Kiasalari, Z., Khalili, M., Baluchnejadmojarad, T. et al. Protective Effect of Oral Hesperetin Against Unilateral Striatal 6-Hydroxydopamine Damage in the Rat. Neurochem Res 41, 1065–1072 (2016). https://doi.org/10.1007/s11064-015-1796-6
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DOI: https://doi.org/10.1007/s11064-015-1796-6