Usnic acid (UA)
Development and validation of a reliable LC–MS/MS method for quantitative analysis of usnic acid in Cladonia uncialis
... Usnic acid (UA) is one of the most common and most studied lichen-specific secondary metabolites and is taxonomically widely distributed in species of Clado- nia, Usnea, Lecanora, Ramalina, Evernia, ...
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ASSESSMENT OF THE SAFETY VERSUS NEPHROTOXICITY OF USNIC ACID IN RATS: BIOCHEMICAL AND HISTOPATHOLOGICAL STUDIES
... investigated. Usnic acid (UA), a secondary metabolite of certain lichens, was reported to exert hepatotoxic and cardiotoxic ...of UA (100 and 300 ...mg UA/kg, and G3 received 300 mg ...
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ANTIMICROBIAL ACTIVITY OF ACETONE EXTRACT AND USNIC ACID CONSTITUENT OF LICHEN USNEA LONGISSIMA (ACH.)
... its usnic acid constituent (concentrations of ...The usnic acid constituent was tested by means of extensive Retention factor (Rf) compared with data reported in the ...the usnic ...
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FABRICATION, CHARACTERIZATION AND PHARMACOLOGICAL ACTIVITY OF USNIC ACID LOADED NANOPARTICLES
... INTRODUCTION: Usnic acid (2, 6 - diacetyl -7, 9-dihydroxy-8, 9h-dimethyl-1, 3(2H, 9Bh)-dibenzo - furandione) is a liche n metabolite 1, 2 .... Usnic acid is a yellow pigment and occurs in two ...
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Solid Dispersion of Usnic Acid–HPMC 2910 Prepared by Spray Drying and Freeze Drying Techniques
... Usnic acid is a dibenzofuran derivate produced by some lichens species primarily Usnea ...(BCS), usnic acid belongs to class II that has high permeability but low ...of usnic ...
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SYNTHESIS AND CHARACTERIZATION OF GRAPHENE USNIC ACID CONJUGATE MICROSPHERES AND ITS ANTIBACTERIAL ACTIVITY AGAINST STAPHYLOCOCCUS AUREUS
... Pradesh, Usnic acid procured from Triveni Chemicals ...Graphene Usnic Acid: Graphene powder (100 mg) weighed and was added in methanol (25 ...h, usnic acid powder (200 mg) was ...
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Effect of Milling on Physicochemical Properties of Usnic Acid Isolated from Usnea sp.
... Usnic acid is the secondary metabolite found in lichens, particularly Usnea sp which has considerable pharmacological ...of usnic acid is still limited due to poorly soluble in ...of ...
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STUDY ON EXTRACTS OF PARMELIA PERLATA ACH. FOR ITS ANTIMICROBIAL POTENTIAL AGAINST CERTAIN MICROORGANISMS
... A significant increase in the trend of infectious diseases and alarming shoot up of resistance to existing antimicrobial agents demands a renewed effort to seek agents effective against pathogenic bacteria resistant to ...
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Antidermatophytic Activity of the Fruticose Lichen Usnea orientalis
... Acetic acid (5 mL)) and Solvent C (Toluene (170 mL): Acetic acid (30 mL)) was used as mobile phase, whereas silica-coated aluminum plate (TLC Silica gel 60 F254, Merck KGaA, Germany) was used as stationary ...
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In Vitro Efficacy of the Ankaferd Galenic Hemostatic Extract as a Germicidal Agent
... that usnic acid has an insufficient germicidal effect after 15 min, whereas beta- dine, savlosol, and 96% alcohol solutions have a sufficient germicidal effect after 15 min; the savlosol solution was the ...
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Chemical variation of Usnea longissima Ach. in the central Oregon Coast Range
... Chemotypes in the Oregon Coast Range appear to differ from those in British Columbia in their relative dominance and chemical make-up. The chemicals that we found in our samples were a subset of the secondary chemical ...
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Cliostomum spribillei (Ramalinaceae, lichenized Ascomycetes), a new species from western North America
... Usnic acid is also diagnostic (i.e., constant and present as a major substance in more than trace amounts) for three additional species, i.e., C. coppinsii Fryday & Kantvilas, C. corrugatum (Ach.: Fr.) ...
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The Physiology of Sea Urchin Spermatozoa
... Two examples of the alleged physiological differences between dense and dilute sea-urchin sperm suspensions are: 1 Nelson 1948 stated that usnic acid stimulated the respiration of dense [r] ...
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GASTRO PROTECTIVE EFFECTS OF USNEA LONGISSIMA METABOLITES ON PROBIOTIC LACTOBACILLUS CASEI
... RESULTS: Usnic acid showed significant ulcer protective effect, and it showed better positive effect when it was given with ...ulcer. Usnic acid supplemented ...casei, usnic ...
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ANTIBACTERIAL AND ANTIFUNGAL ACTIVITY OF THREE RAMALINA SPECIES
... of usnic acid in all species. Salazinic acid was present in ...sekikaic acid was present in ...of usnic acid 18,35,51 , salazinic acid 52 and sekikaic acid 26,35,53 ...
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Voltammetric Sensing of Uric Acid and Ascorbic Acid with Poly (p-toluene sulfonic acid) Modified Electrode
... uric acid-4,5 diol. The uric acid-4,5 diol compound produced is unstable and decomposes to various products depending on the solution pH ...of UA at the P-pTSA modified ...of UA by a ...
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Simultaneous Determination of Dopamine, Ascorbic Acid and Uric Acid at Poly(Patton and Reeder’s) Modified Carbon Paste Electrode
... on its surface. The poly(PR) film at the electrode consciously enhanced the redox peak current of DA and could separately determine DA. The separation of oxidation peak potential is of DA-AA and UA- DA was 163mV ...
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Ursolic acid alleviates airway-vessel remodeling and muscle consumption in cigarette smoke-induced emphysema rats
... that UA administration significantly al- leviated body weight loss, oxidative stress, and cell apoptosis in lung tissue of CS induced emphysema ...rats. UA exerted its effects through the unfolded protein ...
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Effect of evening primrose oil on biochemical parameters of thoroughbred horses under maximal training conditions
... thiobarbituric acid reacting substances (TBARS), uric acid (UA) levels, activities of muscle enzymes – aspartate aminotransferase (AST), creatine kinase (CK), and parameters of fatty acid ...
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EXTRACTION OF URSOLIC ACID FROM OCIMUM SANCTUM AND SYNTHESIS OF ITS DERIVATIVES: COMPARATIVE EVALUATION OF ANTI OXIDANT ACTIVITIES
... of UA and Derivatives using Various in -vitro Assays: Inhibition of Lipid Peroxidation in Liposomes: The lecithin was dried under vacuum onto the wall of a round-bottom ...5-hexatrienyl]-phenylpropionic ...
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