U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Showing 10971 - 10980 of 11247 results

Status:
Possibly Marketed Outside US

Class (Stereo):
CHEMICAL (ACHIRAL)

Status:
Possibly Marketed Outside US
Source:
NCT03355846: Phase 4 Interventional Completed Acute Anal Fissure
(2018)
Source URL:

Class (Stereo):
CHEMICAL (RACEMIC)



Since its first isolation in 1844, usnic acid has become the most extensively studied lichen metabolite and one of the few that are commercially available. Lichens belonging to usnic acid-containing genera have been used as crude drugs throughout the world. There are indications of usnic acid being a potentially interesting candidate for such activities as anti-inflammatory, analgesic, healing, antioxidant, antimicrobial, antiprotozoal, antiviral, larvicidal and UV protection. However, some studies reported the liver toxicity and contact allergy. Usnic acid reduced the production of Junin virus in infected Vero cells in a dependent dose manner, and 50% inhibition was obtained at an effective concentration (EC50) of 9.9 µM. Regarding the TCRV arenavirus, the effective concentration was 20.6 uM. The selectivity indexes (CC50/EC50) of usnic acid for JUNV and TCRV arenavirus were 6.8 and 3.2, respectively, indicating a specific antiviral activity against these viruses and not just a general consequence of its action on cellular toxicity.
Status:
Possibly Marketed Outside US
Source:
NCT03775876: Phase 4 Interventional Completed Hemodynamic
(2017)
Source URL:

Class (Stereo):
CHEMICAL (MIXED)

Showing 10971 - 10980 of 11247 results