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Abstract Title:

In vitro multifunctionality of phlorotannin extracts from edible Fucus species on targets underpinning neurodegeneration.

Abstract Source:

Food Chem. 2020 Dec 15 ;333:127456. Epub 2020 Jul 3. PMID: 32663750

Abstract Author(s):

Mariana Barbosa, Patrícia Valentão, Federico Ferreres, Ángel Gil-Izquierdo, Paula B Andrade

Article Affiliation:

Mariana Barbosa

Abstract:

Bioprospecting for seaweed-derived multimodal acting products have earned increasing attention in the fight against diseases of multifactorial origin, such as neurodegenerative conditions. This is a pioneer study on the in vitro screening of neuroactive properties of phlorotannin-targeted extracts from edible Fucus species. Phlorotannin extracts exhibited multifunctional antioxidant properties, which were suggested to be responsible for counteracting glutamate toxicity in neuronal human-derived SH-SY5Y cells. They also inhibited the activity of enzymes (cholinesterases, monoaminoxidases A and B, and tyrosinase) linked to a set of events that contribute to the onset/progression of neurodegeneration. In general, the bioactivities were correlated with the total phlorotannin content and phloroglucinol tetramers were suggested to be behind the observed effects. The capacity of the phlorotannin extracts to interact with multiple in vitro targets underpinning neurodegeneration points to the potential interest of the selected seaweed species for development of new added-value products and promising neuroactive agents.

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