title: Component and antioxidant properties of polysaccharide fractions isolated from Angelica sinensis (OLIV.) DIELS.
abstract: An analytical method of high performance capillary electrophoresis (HPCE) was developed to simultaneously separate and identify the component monosaccharides of Angelica sinensis polysaccharide fractions (APFs), named APF1, APF2 and APF3. The predominant sugars in APFs were identified as arabinose, glucose, rhamnose, galactose and galacturonic acid as well as trace amount of mannose and glucuronic acid, and the fractionation altered significantly the distribution of component monosaccharides in APFs. APF3 was the most active fraction to effectively inhibit H(2)O(2)-caused decrease of cell viability, lactate dehydrogenase (LDH) leakage and malondialdehyde (MDA) formation, and also reduced H(2)O(2)-caused decline of superoxide dismutase (SOD) activity and glutathione (GSH) depletion (p<0.05), followed by APF2 and APF1 in decreasing order. Furthermore, it was found that APFs (100 microg/ml) could protect macrophages by inhibiting the release of excess NO and reactive oxygen species (ROS) induced by high concentrations of H(2)O(2) (0.8-1.6 mM).
authors.affiliation: Key Laboratory of Ministry of Education for Medicinal Plant Resource and Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi'an, China. xbyang@snnu.edu.cn
authors.forename: Xingbin
authors.initials: X
authors.lastname: Yang
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhao
authors.forename: Yanjuan
authors.initials: Y
authors.lastname: Zhou
authors.forename: You
authors.initials: Y
authors.lastname: Lv
authors.forename: Jieli
authors.initials: J
authors.lastname: Mao
authors.forename: Ping
authors.initials: P
authors.lastname: Zhao
mesh_terms: D029971:Angelica sinensis / Q000737:chemistry*; D000818:Animals; D000975:Antioxidants / Q000302:isolation & purification / Q000494:pharmacology*; D053801:Capillary Electrochromatography; D002241:Carbohydrates / Q000032:analysis; D002478:Cells, Cultured; D002850:Chromatography, Gel; D006861:Hydrogen Peroxide / Q000737:chemistry; D007202:Indicators and Reagents; D007770:L-Lactate Dehydrogenase / Q000378:metabolism; D017737:Macrophages, Peritoneal / Q000187:drug effects / Q000378:metabolism; D051379:Mice; D008807:Mice, Inbred BALB C; D009573:Nitrites / Q000737:chemistry; D018384:Oxidative Stress / Q000187:drug effects; D018517:Plant Roots / Q000737:chemistry; D011134:Polysaccharides / Q000302:isolation & purification / Q000494:pharmacology*; D017382:Reactive Oxygen Species / Q000378:metabolism; D013482:Superoxide Dismutase / Q000378:metabolism
chemical_list: D000975:Antioxidants; D002241:Carbohydrates; D007202:Indicators and Reagents; D009573:Nitrites; D011134:Polysaccharides; D017382:Reactive Oxygen Species; D006861:Hydrogen Peroxide; D007770:L-Lactate Dehydrogenase; D013482:Superoxide Dismutase