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In vitro inhibitory effect of some flavonoids on rotavirus infectivity
Abstract:
The inhibitory effects of some flavonoids on the infectivity of rotavirus, which predominantly causes sporadic diarrhea in infants and young children, were investigated. Among tested flavonoids, diosmin and hesperidin had the most potent inhibitory activity on rotavirus infection. The fifty percent inhibitory concentration of both compounds was 10 microM. However, their aglycones did not have the inhibitory activity. The rutinose moiety of flavonoids should protect against the invasion of rotavirus into cells.
Insights
Certain flavonoids, like diosmin and hesperidin, effectively inhibit rotavirus infection, a common cause of infant diarrhea. The sugar part of these flavonoids appears crucial for blocking viral entry into cells.
Area of Science:
- * Virology and Microbiology
- * Pharmacology and Drug Discovery
- * Biochemistry
Background:
- * Rotavirus is a major cause of infectious diarrhea in infants and young children globally.
- * Flavonoids are plant-derived compounds with diverse biological activities, including potential antiviral properties.
- * Understanding natural compounds for rotavirus inhibition is crucial for developing new therapeutic strategies.
Purpose of the Study:
- * To investigate the antiviral activity of various flavonoids against rotavirus infectivity.
- * To identify specific flavonoids with potent inhibitory effects on rotavirus.
- * To elucidate the structural requirements for flavonoid-mediated inhibition of rotavirus.
Main Methods:
- * In vitro screening of selected flavonoids for their ability to inhibit rotavirus infection.
- * Determination of the fifty percent inhibitory concentration (IC50) for active compounds.
- * Comparative analysis of flavonoid glycosides and their aglycones for inhibitory activity.
Main Results:
- * Diosmin and hesperidin demonstrated significant inhibitory activity against rotavirus infectivity.
- * The fifty percent inhibitory concentration (IC50) for both diosmin and hesperidin was found to be 10 microM.
- * The aglycones of diosmin and hesperidin did not exhibit inhibitory effects, suggesting the importance of the sugar moiety.
Conclusions:
- * Diosmin and hesperidin are potent inhibitors of rotavirus infection.
- * The rutinose component of these flavonoids is essential for their anti-rotavirus activity.
- * Flavonoids, particularly their glycosylated forms, represent promising candidates for preventing rotavirus-induced diarrhea.