Comparison of the antioxidant potential of antiparkinsonian drugs in different in vitro models

Authors

  • Carine Coneglian de Farias State University of Londrina
  • Kamila Landucci Bonifácio State University of Londrina
  • Andressa Keiko Matsumoto State University of Londrina; Clinical and Toxicological Analysis; Department of Pathology
  • Luciana Higachi State University of Londrina; Clinical and Toxicological Analysis; Department of Pathology
  • Rúbia Casagrande State University of Londrina; Department of Pharmaceutical Sciences
  • Estefânia Gastaldello Moreira State University of Londrina; Department of Physiological Sciences
  • Décio Sabbatini Barbosa State University of Londrina; Clinical and Toxicological Analysis; Department of Pathology

DOI:

https://doi.org/10.1590/S1984-82502014000400017

Abstract

Parkinson's disease (PD) is characterized by progressive degeneration of dopaminergic neurons in the substantia nigra pars compacta. Furthermore, oxidative stress plays a role in PD, causing or contributing to the neurodegenerative process. Currently PD has only symptomatic treatment and still nothing can be done to stop the degenerative process of the disease. This study aimed to comparatively evaluate the antioxidant capacity of pramipexole, selegeline and amantadine in different in vitro studies and to offer possible explanations on the molecular antioxidant mechanisms of these drugs. In vitro, the antioxidant capacity of the drugs was assessed by the ability of antiparkinsonian drugs to decrease or scavenge ROS in the neutrophil respiratory burst, ability of antiparkinsonian drugs to donate hydrogen and stabilize the free radical 2,2-diphenyl-1-picryl-hydrazyl (DPPH•), to scavenge 2,2'-azino-di-(3-ethylbenzthiazoline-6-sulphonic acid (ABTS+) and evaluation of the ferric reducing antioxidant power (FRAP). This study demonstrated that both pramipexole and selegiline, but not amantadine, have antioxidant effects in vitro by scavenging superoxide anion on the respiratory burst, donating electron in the ABTS+ assay and presenting ferric reduction antioxidant power. This chemical structure-related antioxidant capacity suggests a possible neuroprotective mechanism of these drugs beyond their already recognized mechanism of action.

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Published

2014-12-01

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Articles

How to Cite

Comparison of the antioxidant potential of antiparkinsonian drugs in different in vitro models . (2014). Brazilian Journal of Pharmaceutical Sciences, 50(4), 819-826. https://doi.org/10.1590/S1984-82502014000400017