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

Abstract Title:

Antiviral effects of black raspberry (Rubus coreanus) seed extract and its polyphenolic compounds on norovirus surrogates.

Abstract Source:

Biosci Biotechnol Biochem. 2016 Mar 17:1-9. Epub 2016 Mar 17. PMID: 26983677

Abstract Author(s):

Ji-Hye Lee, Sun Young Bae, Mi Oh, Jong Hyeon Seok, Sella Kim, Yeon Bin Chung, Giri Gowda K, Ji Young Mun, Mi Sook Chung, Kyung Hyun Kim

Article Affiliation:

Ji-Hye Lee

Abstract:

Black raspberry seeds, a byproduct of wine and juice production, contain large quantities of polyphenolic compounds. The antiviral effects of black raspberry seed extract (RCS) and its fraction with molecular weight less than 1 kDa (RCS-F1) were examined against food-borne viral surrogates, murine norovirus-1 (MNV-1) and feline calicivirus-F9 (FCV-F9). The maximal antiviral effect was achieved when RCS or RCS-F1 was added simultaneously to cells with MNV-1 or FCV-F9, reaching complete inhibition at 0.1-1 mg/mL. Transmission electron microscopy (TEM) images showed enlarged viral capsids or disruption (from 35 nm to up to 100 nm) by RCS-F1. Our results thus suggest that RCS-F1 can interfere with the attachment of viral surface protein to host cells. Further, two polyphenolic compounds derived from RCS-F1, cyanidin-3-glucoside (C3G) and gallic acid, identified by liquid chromatography-tandem mass spectrometry, showed inhibitory effects against the viruses. C3G was suggested to bind to MNV-1 RNA polymerase and to enlarge viral capsids using differential scanning fluorimetry and TEM, respectively.

Study Type : In Vitro Study
Additional Links
Pharmacological Actions : Antiviral Agents : CK(938) : AC(433)

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Sayer Ji
Founder of GreenMedInfo.com

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

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