title: [Effect of L-Arginine on intestinal mucosal injury of rats with severe abdominal infection].
abstract: OBJECTIVE
  To investigate the effect of L-Arginine on intestinal mucosal injury of rats with severe abdominal infection.
  
  
  METHODS
  Rats received cecal ligation and puncture (CLP) to reproduce sepsis model. A total of 18 Wistar rats were divided into two groups randomly (each n=9): L-Arginine group and model group. Three hundred mg/kg of L-Arginine was injected into the abdomen in rats of L- Arginine group after CLP. Model group received equal volume of normal saline. Blood sample was harvested and the serum levels of nitric oxide (NO) and inducible nitric oxide synthase (iNOS) were determined at 24 hours after operation in both groups. The histopathological change of intestinal mucosa was observed under light microscope and mucosa damage index was determined.
  
  
  RESULTS
  The intestinal mucosal damage was observed both in model group and L- Arginine group after CLP, but the injury was milder in L- Arginine group. There was significant difference in mucosa injury index between L-Arginine group and model group (3.4+/-0.6 vs. 4.1+/-0.5, P<0.05). The serum level of NO [(76.1+/-26.2) micromol/L vs. (87.3+/-16.7) micromol/L, P>0.05] and iNOS [(30.6+/-7.4) U/L vs(44.4+/-6.6) U/L, P<0.01] in L-Arginine group were lower than those in model group.
  
  
  CONCLUSIONS
  L-Arginine could protect against intestinal mucosal injury and depress the serum level of iNOS in severe abdominal infection of rats.
authors: Department of General Surgery, Nanfang Hospital, Nanfang Medical University, Guangdong 510515, Guangzhou, China.
authors: Yong-feng
authors: YF
authors: Ren
authors: Cheng-tang
authors: CT
authors: Wu
authors: Jin-feng
authors: JF
authors: Liu
authors: Yu-qi
authors: YQ
authors: Luo
authors: Kang-xiong
authors: KX
authors: Liao
mesh_terms: D034841:Abdominal Cavity; D000818:Animals; D001120:Arginine / Q000494:pharmacology*; D004195:Disease Models, Animal; D005260:Female; D007239:Infections / Q000097:blood / Q000188:drug therapy / Q000473:pathology*; D007413:Intestinal Mucosa / Q000187:drug effects / Q000473:pathology*; D008297:Male; D009569:Nitric Oxide / Q000097:blood; D052247:Nitric Oxide Synthase Type II / Q000097:blood; D011897:Random Allocation; D051381:Rats; D017208:Rats, Wistar
chemical_list: D009569:Nitric Oxide; D001120:Arginine; D052247:Nitric Oxide Synthase Type II