In vitro and in silico prediction of antineurodegenerative properties of Helichrysum plicatum flower extract

Miloš Jovanović, Zorica Drinić, Dubravka Bigović, Ana Alimpić Aradski, Sonja Duletić-Laušević, Katarina Šavikin

DOI: http://dx.doi.org/10.5937/leksir2040045J

Abstract


This study aimed to assess the antineurodegenerative and antioxidant activity of Helichrysum plicatum flower extract, as well as to identify extract ingredients with acceptable pharmacokinetic parameters such as gastrointestinal absorption, blood-brain barrier permeation, and P-glycoprotein-mediated effusion for optimal therapeutic brain exposure. Antioxidant activity was evaluated by ABTS, FRAP, and β-carotene bleaching assays, while antineurodegenerative activity was tested using acetylcholinesterase (AChE) and tyrosinase (TYR) inhibitory activity assays. In the ABTS test, the dry extract at the highest applied concentration (500 μg/mL) showed better or similar antioxidant activity compared to the standards. In the β-carotene assay, all applied concentrations of the extract showed significantly higher activity than vitamin C. No concentration-dependent activity was observed in the AChE assay, while in the TYR assay the lowest extract concentration (100 μg/mL) showed the highest percentage of inhibition (27.92%). Pharmacokinetic parameters of compounds were predicted by in silico SwissADME online tool in accordance by the rules of drug-likeness. According to the pharmacokinetic properties, we concluded that pentoxymethoxylated flavones may represent CNS drug candidates for further studies.


Keywords


antioxidant, neuroprotective, tyrosinase, acetylcholinesterase, in silico

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References


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Copyright (c) 2020 Miloš Jovanović, Zorica Drinić, Dubravka Bigović, Ana Alimpić Aradski, Sonja Duletić-Laušević, Katarina Šavikin



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ISSN 2560-3965 (Online)

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