TY - JOUR
T1 - Oral Glutamine Prevents Gut Mucosal Injury and Improves Mucosal Recovery Following Lipopolysaccharide Endotoxemia in a Rat
AU - Sukhotnik, Igor
AU - Agam, Modi
AU - Shamir, Raanan
AU - Shehadeh, Naim
AU - Lurie, Michael
AU - Coran, Arnold G.
AU - Shiloni, Eitan
AU - Mogilner, Jorge
PY - 2007/12
Y1 - 2007/12
N2 - Objective: To evaluate the effects of oral glutamine in preventing mucosal damage caused by lipopolysaccharide (LPS) endotoxemia in a rat. Methods: Male Sprague Dawley rats, weighing 250 to 280 g, were divided into three experimental groups: CONTR rats (Group A), LPS rats (Group B) were treated with lipopolysaccharide given I.P. at dose 10 mg/kg every 24 h (two injections), and LPS-GLN rats (Group C) were treated with oral glutamine given in drinking water (2%) 72 h before and following injection of LPS. Intestinal structural changes, enterocyte proliferation, and enterocyte apoptosis were determined 24 h after last LPS injection. Results: LPS rats demonstrated a significant decrease in bowel and mucosal weight in jejunum and ileum, mucosal DNA and protein in jejunum and ileum, and villus height and crypt depth in jejunum and ileum compared with sham animals. LPS rats also had a significantly greater Park injury score in jejunum and ileum, a lower cell proliferation index in jejunum and ileum, and higher apoptotic index in jejunum and ileum compared with control rats. LPS-GLN animals showed a significant increase in bowel weight in jejunum, mucosal weight in jejunum and ileum, mucosal DNA in jejunum and ileum, villus height in jejunum and ileum, and cell proliferation index compared with LPS animals. The Park injury score was significantly lower in LPS-GLN rats compared with LPS animals. Conclusions: Oral glutamine supplementation prevents mucosal injury and improves intestinal recovery after LPS endotoxemia in a rat.
AB - Objective: To evaluate the effects of oral glutamine in preventing mucosal damage caused by lipopolysaccharide (LPS) endotoxemia in a rat. Methods: Male Sprague Dawley rats, weighing 250 to 280 g, were divided into three experimental groups: CONTR rats (Group A), LPS rats (Group B) were treated with lipopolysaccharide given I.P. at dose 10 mg/kg every 24 h (two injections), and LPS-GLN rats (Group C) were treated with oral glutamine given in drinking water (2%) 72 h before and following injection of LPS. Intestinal structural changes, enterocyte proliferation, and enterocyte apoptosis were determined 24 h after last LPS injection. Results: LPS rats demonstrated a significant decrease in bowel and mucosal weight in jejunum and ileum, mucosal DNA and protein in jejunum and ileum, and villus height and crypt depth in jejunum and ileum compared with sham animals. LPS rats also had a significantly greater Park injury score in jejunum and ileum, a lower cell proliferation index in jejunum and ileum, and higher apoptotic index in jejunum and ileum compared with control rats. LPS-GLN animals showed a significant increase in bowel weight in jejunum, mucosal weight in jejunum and ileum, mucosal DNA in jejunum and ileum, villus height in jejunum and ileum, and cell proliferation index compared with LPS animals. The Park injury score was significantly lower in LPS-GLN rats compared with LPS animals. Conclusions: Oral glutamine supplementation prevents mucosal injury and improves intestinal recovery after LPS endotoxemia in a rat.
KW - enterocyte apoptosis
KW - enterocyte proliferation
KW - glutamine
KW - intestine
KW - lipopolysaccharide
KW - sepsis
UR - http://www.scopus.com/inward/record.url?scp=36148989916&partnerID=8YFLogxK
U2 - 10.1016/j.jss.2007.02.002
DO - 10.1016/j.jss.2007.02.002
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C2 - 17574581
AN - SCOPUS:36148989916
SN - 0022-4804
VL - 143
SP - 379
EP - 384
JO - Journal of Surgical Research
JF - Journal of Surgical Research
IS - 2
ER -