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- W4229007128 abstract "Abstract Objective The mosquito transmitted dengue virus (DENV) the causative agent of dengue fever (DF) remains a significant public health burden in many countries. Thailand, along with many countries in Asia and elsewhere, has a long history of using traditional medicines to combat febrile diseases such as DF. Screening bioactive compounds from traditional medicines reported to have antipyretic or anti-inflammatory activity may lead to the development of potent antivirals. In this study oroxylin A (OA), a flavonoid derivative found in Oroxylum indicum (commonly called the Indian trumpet flower or tree of Damocles), was screened for antiviral activity towards DENV. Results Cytotoxicity analysis in BHK-21 cells showed a 50% cytotoxic concentration (CC 50 ) of 534.17 µM. The compound showed no direct virucidal activity towards DENV, and pre-treatment of cells had no effect on virus production. A deficit was seen in virus production when cells were post-infection treated with oroxylin A. Under conditions of post-infection treatment, the EC 50 value was 201.1 µM, giving a selectivity index (SI) value of 2.66. Accumulation of DENV E protein inside the cell was seen under conditions of post-infection treatment, suggesting that oroxylin A may exert some effects at the virus assembly/egress stages of the replication cycle." @default.
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- W4229007128 date "2022-05-04" @default.
- W4229007128 modified "2023-10-16" @default.
- W4229007128 title "Oroxylin A shows limited antiviral activity towards dengue virus" @default.
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- W4229007128 doi "https://doi.org/10.1186/s13104-022-06040-0" @default.
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