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Depression: 21st Century Solutions + The Dark Side of Wheat

Article Publish Status: FREE
Abstract Title:

Antioxidant, antimicrobial and neutrophil-modulating activities of herb extracts.

Abstract Source:

Acta Biochim Pol. 2014 ;61(2):359-67. Epub 2014 Jun 18. PMID: 24945135

Abstract Author(s):

Petko Denev, Maria Kratchanova, Milan Ciz, Antonin Lojek, Ondrej Vasicek, Denitsa Blazheva, Plamena Nedelcheva, Libor Vojtek, Pavel Hyrsl

Article Affiliation:

Petko Denev

Abstract:

The present study provides a comprehensive data on the antioxidant, antimicrobial and neutrophil-modulating activities of extracts from six medicinal plants--blackberry (Rubus fruticosus) leaves, chokeberry (Aronia melanocarpa) leaves, hawthorn (Crataegus monogyna) leaves, lady's mantle (Alchemilla glabra) aerial parts, meadowsweet (Filipendula ulmaria) aerial parts and raspberry (Rubus idaeus) leaves. In order to analyze the antioxidant activity of the herbs, several methods (ORAC, TRAP, HORAC and inhibition of lipid peroxidation) were used. Blackberry leaves and meadowsweet extracts revealed the highest antioxidant activities via all methods. All extracts studied blocked almost completely the opsonized zymosan particle-activated ROS production by neutrophils from human whole blood. On the other hand, the effect of extracts on phorbol myristate acetate-activated ROS production was much milder and even nonsignificant in the case of chokeberry leaves. This latter result suggests that extracts (apart from their antioxidative activity) interfere with the signaling cascade of phagocyte activation upstream of the protein kinase C activation. The antimicrobial activity of the investigated extracts against 11 human pathogens was investigated using three different methods. Meadowsweet and blackberry leaves extracts had the highest antimicrobial effect and the lowest minimal inhibiting concentrations (MICs) against the microorganisms tested.

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Depression: 21st Century Solutions + The Dark Side of Wheat

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