title: Anti-inflammatory effect of Ulmus davidiana Planch (Ulmaceae) on collagen-induced inflammation in rats.
abstract: Ulmus davidiana Planch (Ulmaceae) extract (UD) has long been known to have anti-inflammatory and anticancer activities. UD has been also known to have protective effects on damaged tissue, inflammation and bone among other functions. Effects of UD on inflammatory and immune responses and its mechanisms in collagen-induced inflammation (CII) rat were studied. Hind paw volumes of rats were measured by volume meter; lymphocyte proliferation, interleukin (IL)-1, IL-2, tumor necrosis factor (TNF)-α level was determined by 3-(4,5-2dimethylthiazal-2yl)2,5-diphenyltetrazoliumbromide assay. Antibodies to collagen type II (BC-II) were determined by enzyme-linked immunosorbent assay. There was a marked secondary inflammatory response in CII model, which accompanied with the decrease of body weight and the weight of immune organs simultaneously. The administration of UD (20, 80, 150mg/kg, intragastrically×10 days) inhibited the inflammatory response and restored body weight and the weight of immune organs of CII rats. Lymphocyte proliferation and IL-2 production of CII rats increases, together with IL-1 and TNF-α in peritoneal macrophages and synoviocytes. The administration of UD (20, 80, 150mg/kg, 10 days) reduced above changes significantly. UD had no effect on the concentration of antibodies to BC-II. From the results, it was concluded that UD possesses anti-inflammatory and immunoregulatory activities and has a therapeutic effect on CII rats.
authors.affiliation: Molecular and Cellular Glycobiology Unit, Department of Biological Science, Sungkyunkwan University, Chunchun-Dong 300, Suwon City, Kyunggi-Do 440-746, Republic of Korea; Department of Oriental Medicine, Dongguk University, Kyungju, Kyungbuk 780-714, Republic of Korea.
authors.forename: In-Kwang
authors.initials: IK
authors.lastname: Song
authors.forename: Kap-Sung
authors.initials: KS
authors.lastname: Kim
authors.forename: Seok-Jong
authors.initials: SJ
authors.lastname: Suh
authors.forename: Myung-Sunny
authors.initials: MS
authors.lastname: Kim
authors.forename: Dae Young
authors.initials: DY
authors.lastname: Kwon
authors.forename: Sun-Lim
authors.initials: SL
authors.lastname: Kim
authors.forename: Cheorl-Ho
authors.initials: CH
authors.lastname: Kim