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Abstract Title:

Inhibition of viral RNA synthesis in canine distemper virus infection by proanthocyanidin A2.

Abstract Source:

Antiviral Res. 2011 Dec ;92(3):447-52. Epub 2011 Oct 13. PMID: 22020306

Abstract Author(s):

Laura Gallina, Fabiana Dal Pozzo, Viola Galligioni, Ezio Bombardelli, Alessandra Scagliarini

Article Affiliation:

Laura Gallina

Abstract:

Canine distemper virus (CDV) is a contagious and multisystemic viral disease that affects domestic and wild canines as well as other terrestrial and aquatic carnivores. The disease in dogs is often fatal and no specific antiviral therapy is currently available. In this study, we evaluated the in vitro antiviral activity against CDV of proanthocyanidin A2 (PA2), a phenolic dimer belonging to the class of condensed tannins present in plants. Our results showed that PA2 exerted in vitro antiviral activity against CDV with a higher selectivity index compared to ribavirin, included in our study for the previously tested anti-CDV activity. The time of addition assay led us to observe that PA2 was able to decrease the viral RNA synthesis and to reduce progeny virus liberation, at different times post infection suggesting multiple mechanisms of action including inhibition of viral replicative complex and modulation of the redox milieu. These data suggest that PA2, isolated from the bark of Aesculus hippocastanum, has potential usefulness as an anti-CDV compound inhibiting viral replication.

Study Type : In Vitro Study

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Sayer Ji
Founder of GreenMedInfo.com

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