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Anti-parkinsonian Effects of Fluvoxamine Maleate in Maternally Separated Rats

Anti-parkinsonian Effects of Fluvoxamine Maleate in Maternally Separated Rats

Ernest Dallé, Willie M U Daniels, Musa V Mabandla

Int J Dev Neurosci. 2016 Oct;53:26-34.

PMID: 27338206

Abstract:

Exposure to early life stress has been shown to result in anxiety-like symptoms and exacerbates degeneration of dopaminergic neurons in a rat model of Parkinson's disease (PD). First line treatment for anxiety disorders includes the use of Fluvoxamine maleate (FM). In this study, we investigated whether treating anxiety-like symptoms with FM has an effect in alleviating the neurotoxic effects of 6-OHDA in a parkinsonian rat model. Early maternal separation was used to create a rat model that depicts anxiety-like symptoms. Maternally separated adult Sprague-Dawley rats were treated with FM prior to and following lesion with 6-hydroxydopamine (6-OHDA). The elevated plus-maze (EPM) and the forelimb akinesia tests were used to evaluate anxiety-like symptoms and motor impairment respectively. Blood plasma was used to measure corticosterone concentration, and striatal tissue was collected for dopamine (DA) and serotonin (5-HT) analysis. Our results show that animals exposed to early life stress displayed increased anxiety-like symptoms and elevated basal plasma corticosterone concentration which were attenuated by treatment with FM. A 6-OHDA lesion effect was evidenced by impairment in the forelimb akinesia test as well as decreased DA and 5-HT concentrations in the lesioned striatum. These effects were attenuated on DA neurons by FM treatment in the pre-lesion treated as opposed to the post-lesion treated rats. This study suggests that early treatment of anxiety-like behavior decreases the vulnerability of DA neurons to neurotoxic insults later in life thus slowing down DA degeneration in PD.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP61718829-A	Fluvoxamine Maleate		61718-82-9	Price

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