Lin MT, Saito H, Furukawa S, Fukushima R, Kazuhiko F, Lee PH, Chang KJ, Chen WJ. Alanyl-glutamine enriched total parenteral nutrition improves local, systemic, and remote organ responses to intraperitoneal bacterial challenge.
JPEN J Parenter Enteral Nutr 2001;
25:346-51. [PMID:
11688940 DOI:
10.1177/0148607101025006346]
[Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND
Standard total parenteral nutrition (STD-TPN) may diminish host defense against infection. Glutamine (Gln) is suggested to enhance host immunity. This study investigated the effects of antecedent alanyl-glutamine enriched TPN (Ala-Gln-TPN) on host responses to intraperitoneal bacterial challenge compared with STD-TPN.
METHODS
Rats were divided into STD-TPN and Ala-Gln-TPN groups. They received isocaloric and isonitrogenous nutrition for 7 days and were challenged intraperitoneally with E. coli. Rats were killed before (0 hour) challenge and at 2 and 6 hours after challenge. Bacterial numbers in peritoneal lavage fluid (PLF), liver, spleen, and blood were determined. Tumor necrosis factor-alpha (TNF), interleukin (IL)-8, and interferon-gamma (IFN) in plasma and PLF were measured. Hepatic TNF, splenic TNF, and splenic IFN levels were determined.
RESULTS
The numbers of E. coli in systemic blood at 2 hours after intraperitoneal bacterial challenge were significantly lower in the Ala-Gln-TPN than in STD-TPN group. E. coli numbers in blood significantly correlated with those in the liver. The Ala-Gln-TPN also resulted in significantly higher PLF and hepatic TNF levels, higher splenic IFN levels, and lower plasma IL-8 levels at 6 hours after challenge compared with the STD-TPN.
CONCLUSIONS
Antecedent Ala-Gln enriched TPN enhance local, systemic, and remote organ immune responses to intraperitoneal bacterial challenge. Ala-Gln-TPN may enhance host defense and be more beneficial than standard TPN in sepsis.
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