Results 11 to 20 of about 2,517,497 (197)
Usnic Acid. XV. Alkaline Degradation of Usnic Acid [PDF]
The alkaline degradation product of usnic acid was identified as 4,6-dihydroxy-3,5-dimethylcoumaran-2-one on the basis of spectral and chemical evidence.
Takani, Masako, Takahashi, Kotaro
core +6 more sources
Data on (+)-usnic acid: A new application to treat toxoplasmosis [PDF]
Toxoplasma gondii pathogen is a threat to human health that results in economic burden. Unfortunately, there are very few high-efficiency and low-toxicity drugs for toxoplasmosis in the clinic. (+)-Usnic acid derived from lichen species has been reported
Kaiwei Si +6 more
doaj +2 more sources
Regioselectivity Amination of Usnic Acid by Ammonia in Water
Usnic acid is a well-known secondary lichen metabolite exhibiting a broad spectrum of biological activity. Previously it was shown that the reaction of usnic acid with various amines resulted in enamine-bond formation instead of the C(11)=O carbonyl ...
Aleksandr Filimonov +3 more
doaj +2 more sources
Effect of Usnic Acid on Osteoclastogenic Activity [PDF]
Osteoclasts are the only cells that can resorb bone and they are produced from monocytes/macrophages in the presence of M-CSF and RANKL and are activated in vivo by an immune response.
Han-Byeol Shin +6 more
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Inhibitory Activity of (+)-Usnic Acid against Non-Small Cell Lung Cancer Cell Motility. [PDF]
Lichens are symbiotic organisms that produce various unique chemicals that can be used for pharmaceutical purposes. With the aim of screening new anti-cancer agents that inhibit cancer cell motility, we tested the inhibitory activity of seven lichen ...
Yi Yang +12 more
doaj +2 more sources
Usnic acid controls the acidity tolerance of lichens
The hypotheses were tested that, firstly, lichens producing the dibenzofuran usnic acid colonize substrates characterized by specific pH ranges, secondly, this preferred pH is in a range where soluble usnic acid and its corresponding anion occur in ...
Juergens, Sascha-Rene, Hauck, Markus
core +4 more sources
Hydrogel Formulation of Usnic Acid and Antibacterial Activity Test Against Propionibacterium acne [PDF]
Usnic acid is known for its remarkable antimicrobial activity. The aim of this research was to formulate hydrogel of usnic acid and evaluate the antibacterial activity against Propionibacterium acne.
Lili Fitriani +3 more
doaj +2 more sources
Anticoccidal efficacy of usnic acid in broilers [PDF]
This experiment was conducted to investigate if usnic acid, a lichen metabolite, exerts therapeutic action against coccidiosis. A total of 160 one-day-old male Ross 308 broiler chicks were divided into 5 experimental groups (A-E), each replicated in 4 ...
GUVEN E +7 more
core +5 more sources
This text presents complementary data corresponding to schistosomiasis mansoni's vector control and enviromental toxicity using usnic acid. These informations support our research article “Toxicity of Usnic Acid from Cladonia substellata (Lichen) to ...
Hallysson Douglas Andrade de Araújo +7 more
doaj +2 more sources
Does usnic acid affect microtubules in human cancer cells?
Usnic acid, a lichen metabolite, is known to exert antimitotic and antiproliferative activities against normal and malignant human cells. Many chemotherapy agents exert their activities by blocking cell cycle progression, inducing cell death through ...
MA. O'Neill +6 more
doaj +2 more sources

