Results 31 to 40 of about 2,517,497 (197)
(+)-Usnic Acid as a Promising Candidate for a Safe and Stable Topical Photoprotective Agent
Molecules, 2021 The study aimed to examine whether usnic acid—a lichen compound with UV-absorbing properties—can be considered as a prospective photoprotective agent in cosmetic products.
Agnieszka Galanty +7 more
doaj +1 more source
Novel Chiral Molecular Tweezer from (+)-Usnic Acid
, 2016 A new chiral molecular tweezer was synthesized with (1R,2R)-1,2-diaminocyclohexane as spacer and two molecules of (+)-usnic acid as pincers. The ability of this molecular tweezer to bind 2,4,7-trinitrofluorenone was studied. A charge-transfer complex was
Pierre van de Weghe (1392829) +5 more
core +3 more sources
, 2009 Eradication of Helicobacter pylori is an important objective in overcoming gastric diseases. Many regimens are currently available but none of them could achieve 100% success in eradication.
Aktepe, Orhan Cem +16 more
core +1 more source
iScience, 2022 Summary: The Mammalian/mechanistic target of rapamycin (mTOR) played a central role in cellular survival and aging. Inhibition of mTOR had been proposed as a reasonable strategy to promote lifespan and delay age-related diseases in evolutionarily diverse
Yi Xiao +9 more
doaj +1 more source
Usnic acid. XIV. The photo-oxidation of usnic acid.
Chemical and Pharmaceutical Bulletin, 1978 Irradiation of d-usnic acid at -20° under oxygen atmosphere afforded 2, 4-diacetyl-6-methyl-phloroglucinol (IV), together with racemic usnic acid, and decarbousnic acid afforded also the same compound under the same conditions. The mechanism of the photo-oxidation of usnic-and decarbousnic-acids was studied.
TAKAHASHI, KOTARO, TAKANI, MASAKO
openaire +1 more source
PLoS ONE, 2018 Usnic acid is a unique polyketide produced by lichens. To characterize usnic acid biosynthesis, the transcriptome of the usnic-acid-producing lichen-forming fungus Nephromopsis pallescens was sequenced using Illumina NextSeq technology.
Yi Wang +5 more
doaj +1 more source
Scientific Reports, 2022 The pandemic caused by severe acute respiratory Coronavirus-2 (SARS-CoV-2) has been ongoing for over two years, and treatment for COVID-19, other than monoclonal antibodies, is urgently required.
Eunseok Oh +7 more
doaj +1 more source
Nano- and Microcarriers as Drug Delivery Systems for Usnic Acid: Review of Literature
Pharmaceutics, 2020 Usnic acid is one of the most investigated lichen secondary metabolites, with several proven biological properties with potential medical relevance.
Ana Zugic, Vanja Tadic, Snezana Savic
doaj +1 more source
Safety in Rats of a Novel Nasal Spray Formulation for the Prevention of Airborne Viral Infections
Pharmaceutics, 2023 Hexedra+® is a nasal spray containing hydroxypropyl methylcellulose, beta-cyclodextrin, and usnic acid. It has been developed with the aim of reducing the risk of transmission of airborne viral infections, with particular reference to influenza and COVID-
Mirella Tanori +7 more
doaj +1 more source