Paeonol Improves Lipopolysaccharide-induced Microcirculatory Disturbance in Rat Mesentery

作     者：Lei Dong Ang Li Mei-Li Duan Kai Sun Yu-Ying Liu Ming-Xia Wang Chuan-She Wang Jing-Yu Fan Jing-Yan Han 

作者机构：Department of Critical Care Medicine Beijing Friendship Hospital Capital Medical University Tasly Microcirculation Research Center Peking University Health Science Center Department of Integration of Chinese and Western Medicine School of Basic Medical Sciences Peking University Key Laboratory of Microcirculation State Administration of Traditional Chinese Medicine of China Key Laboratory of Stasis and Phlegm of State Administration of Traditional Chinese Medicine 

出 版 物：《World Journal of Traditional Chinese Medicine》 (世界中医药杂志（英文）)

年 卷 期：2015年第1卷第1期

页      面：37-44页

学科分类：1008[医学-中药学(可授医学、理学学位)] 1007[医学-药学(可授医学、理学学位)] 1006[医学-中西医结合] 1005[医学-中医学] 1002[医学-临床医学] 100602[医学-中西医结合临床] 10[医学] 

基　　金：supported by the Production of New Medicine Program of Ministry of Science and Technology of the People’s Republic of China(2008ZX09401) 

主　　题：Paeonol Microcirculation Leukocyte adhesion Albumin leakage 

摘      要：Objective: To investigate the effect of paeonol on lipopolysaccheride(LPS)-induced rat mesenteric microcirculatory ***: Male Wistar rats were randomly distributed into 5 groups(n=6 in each): Sham group, LPS group, paeonol group, paeonol+LPS group, and LPS+paeonol group. Endotoximia model was conducted by continuous LPS infusion. Changes in mesenteric microcirculatory variables, including diameter of venule, velocity of red blood cells in venule, leukocyte adhesion, free radicals produced in venule and albumin leakage from venule, were observed through an inverted intravital microscope. Meanwhile, the expression of myeloperoxidase(MPO), CD18,intercellular adhesion molecule-1(ICAM-1), toll-like receptor 4(TLR4), nuclear factor-kappa B p65 subunit(NF-κB p65), activator protein-1(AP-1), and Jun N-terminal kinase(JNK) was assessed by Western ***: After infusion of LPS, the number of leukocytes adherent to venular wall, the intensity of dihydrorhodamine 123(DHR)fluorescence in the venular walls, and albumin leakage from venules were significantly increased, whereas the red blood cell velocity in venule was decreased. All the manifestations were significantly reduced by pre-treatment and post-treatment with paeonol. Moreover, paeonol significantly attenuated the expression of MPO, CD18, ICAM-1, TLR4, NF-κB p65, AP-1 and JNK in rat mesentery after ***: The results demonstrated that paeonol could protect from and ameliorate the microcirculation disturbance induced by LPS.