PMID- 19109869 OWN - NLM STAT- MEDLINE DCOM- 20090519 LR - 20211025 IS - 1007-9327 (Print) IS - 1007-9327 (Linking) VI - 14 IP - 48 DP - 2008 Dec 28 TI - Magnolol attenuates sepsis-induced gastrointestinal dysmotility in rats by modulating inflammatory mediators. PG - 7353-60 AB - AIM: To investigate the protective effects of magnolol on sepsis-induced inflammation and intestinal dysmotility. METHODS: Sepsis was induced by a single intraperitoneal injection of lipopolysaccharide (LPS). Male Wistar rats were randomly assigned to one of three treatment groups: magnolol prior to LPS injection (LPS/Mag group); vehicle prior to LPS injection (LPS/Veh group); vehicle prior to injection of saline (Control/Veh). Intestinal transit and circular muscle mechanical activity were assessed 12 h after LPS injection. Tumor necrosis factor-alpha (TNF-alpha), interleukin-10 (IL-10), monocyte chemoattractant protein-1 (MCP-1) and inducible nitric oxide synthase (iNOS) mRNA in rat ileum were studied by RT-PCR 2 h after LPS injection. Nuclear factor-kappaB (NF-kappaB) activity in the intestine was also investigated at this time using electrophoretic mobility shift assay. In addition, antioxidant activity was determined by measuring malondialdehyde (MDA) concentration and superoxide dismutase (SOD) activity in the intestine 2 h after LPS injection. RESULTS: Magnolol significantly increased intestinal transit and circular muscle mechanical activity in LPS-treated animals. TNF-alpha, MCP-1 and iNOS mRNA expression in the small intestine were significantly reduced after magnolol treatment in LPS-induced septic animals, compared with untreated septic animals. Additionally, magnolol significantly increased IL-10 mRNA expression in septic rat ileum. Magnolol also significantly suppressed NF-kappaB activity in septic rat intestine. In addition, magnolol significantly decreased MDA concentration and increased SOD activity in rat ileum. CONCLUSION: Magnolol prevents sepsis-induced suppression of intestinal motility in rats. The potential mechanism of this benefit of magnolol appears to be modulation of self-amplified inflammatory events and block of oxidative stress in the intestine. FAU - Yang, Tie-Cheng AU - Yang TC AD - Intensive Care Unit and Medical Department of Infection, Beijing Friendship Hospital, Capital Medical University, No. 95, Yong An Road, Beijing 100050, China. zsw401106@sina.com. FAU - Zhang, Shu-Wen AU - Zhang SW FAU - Sun, Li-Na AU - Sun LN FAU - Wang, Hong AU - Wang H FAU - Ren, Ai-Min AU - Ren AM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - World J Gastroenterol JT - World journal of gastroenterology JID - 100883448 RN - 0 (Anti-Inflammatory Agents, Non-Steroidal) RN - 0 (Biphenyl Compounds) RN - 0 (Ccl2 protein, rat) RN - 0 (Chemokine CCL2) RN - 0 (Inflammation Mediators) RN - 0 (Lignans) RN - 0 (Lipopolysaccharides) RN - 0 (NF-kappa B) RN - 0 (RNA, Messenger) RN - 0 (Tumor Necrosis Factor-alpha) RN - 001E35HGVF (magnolol) RN - 130068-27-8 (Interleukin-10) RN - 4Y8F71G49Q (Malondialdehyde) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type II) RN - EC 1.15.1.1 (Superoxide Dismutase) SB - IM MH - Animals MH - Anti-Inflammatory Agents, Non-Steroidal/pharmacology/*therapeutic use MH - Biphenyl Compounds/pharmacology/*therapeutic use MH - Chemokine CCL2/metabolism MH - Disease Models, Animal MH - Gastrointestinal Diseases/*drug therapy/metabolism/*microbiology MH - Gastrointestinal Motility/drug effects MH - Ileum/metabolism MH - Inflammation Mediators/*metabolism MH - Interleukin-10/metabolism MH - Lignans/pharmacology/*therapeutic use MH - Lipopolysaccharides MH - Male MH - Malondialdehyde/metabolism MH - NF-kappa B/metabolism MH - Nitric Oxide Synthase Type II/metabolism MH - RNA, Messenger/metabolism MH - Rats MH - Rats, Wistar MH - Sepsis/chemically induced/*complications/metabolism MH - Superoxide Dismutase/metabolism MH - Tumor Necrosis Factor-alpha/metabolism PMC - PMC2778119 EDAT- 2008/12/26 09:00 MHDA- 2009/05/20 09:00 PMCR- 2008/12/28 CRDT- 2008/12/26 09:00 PHST- 2008/12/26 09:00 [entrez] PHST- 2008/12/26 09:00 [pubmed] PHST- 2009/05/20 09:00 [medline] PHST- 2008/12/28 00:00 [pmc-release] AID - 10.3748/wjg.14.7353 [doi] PST - ppublish SO - World J Gastroenterol. 2008 Dec 28;14(48):7353-60. doi: 10.3748/wjg.14.7353.