Results 191 to 200 of about 12,996 (224)
Some of the next articles are maybe not open access.
Oleanolic acid and ursolic acid stabilize liposomal membranes
Lipids, 1997AbstractThe effects of oleanolic acid (OA) and ursolic acid (UA) on the fluidity and stability of dipalmitoyl phosphatidylcholine (DPPC) liposomal membrane were monitored by measuring the fluorescence polarization of 1,6‐diphenyl‐1,3,5‐hexatriene labeled in the liposomal membrane and the leakage of calcein from the probe‐encapsulated liposomes.
S K, Han +4 more
openaire +2 more sources
Oleanolic acid and ursolic acid: Research perspectives
Journal of Ethnopharmacology, 2005Oleanolic acid and ursolic acid are ubiquitous triterpenoids in plant kingdom, medicinal herbs, and are integral part of the human diet. During the last decade over 700 research articles have been published on their research, reflecting tremendous interest and progress in our understanding of these triterpenoids.
openaire +2 more sources
Oxidation of ursolic acid by ozone
Chemistry of Natural Compounds, 2011Oxidation of methyl esters of ursolic and 3-acetoxyursolic acids by ozone formed products with a 12-oxo11S,13R-oxetane moiety on ring C.
O. B. Kazakova +4 more
openaire +1 more source
Ursolic acid: An anti‐ and pro‐inflammatory triterpenoid
Molecular Nutrition & Food Research, 2008AbstractThere is growing interest in the elucidation of the biological functions of triterpenoids, ubiquitously distributed throughout the plant kingdom, some of which are used as anticancer and anti‐inflammatory agents in Asian countries. Ursolic acid (UA), a natural pentacyclic triterpenoid carboxylic acid, is the major component of some traditional ...
Yasutaka, Ikeda +2 more
openaire +2 more sources
Determination of Ursolic and Oleanolic Acid in Sambuci Fructus
Chemistry & Biodiversity, 2014AbstractElderberries are used in the preparation of pie, jelly, punch, wine, or liqueur, as well as in many herbal remedies and food supplements. Elderberry products may provide diaphoretic, diuretic, antioxidant, and immunostimulant activities that offer protection against cold and flu.
Michał, Gleńsk +3 more
openaire +3 more sources
Nonenzymatic Antioxidative and Antiglycative Effects of Oleanolic Acid and Ursolic Acid
Journal of Agricultural and Food Chemistry, 2007Oleanolic acid and ursolic acid are two triterpenes presented in several herbs. This study analyzed the content of oleanolic acid and ursolic acid in eight locally available fresh herbs, also examined several nonenzymatic antioxidant activities of these two triterpenes, and used a liposome system to evaluate the influence of temperature and pH upon the
Mei-Chin, Yin, Kung-Chi, Chan
openaire +2 more sources
Protective effects of ursolic acid and oleanolic acid in leukemic cells
Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis, 2006Ursolic acid (UA) and oleanolic acid (OA) have similar chemical structures but differ in the position of one methyl group on the ring E. We investigated protective effects of these two triterpenoic acids against H(2)O(2)-induced DNA damage in leukemic L1210, K562 and HL-60 cells using single-cell gel electrophoresis (SCGE). We compared their protective
Zdenka, Ovesná +2 more
openaire +2 more sources
Ursolic Acid-Based Derivatives as Potential Anti-Cancer Agents: An Update
International Journal of Molecular Sciences, 2020Vuyolwethu Khwaza +2 more
exaly