The influence of early enteral immunonutrition on immunological function of body and intestine in severely scalded rats.
- Author:
Guang-hua GUO
1
;
Chen CAI
;
Jun FAN
;
Hong-yan ZHANG
;
Guo-hui LI
Author Information
- Publication Type:Journal Article
- MeSH: Animals; Arginine; Burns; immunology; therapy; CD4-CD8 Ratio; Enteral Nutrition; Glutamine; Immunoglobulin A, Secretory; metabolism; Intestinal Mucosa; metabolism; Intestine, Small; metabolism; Proliferating Cell Nuclear Antigen; metabolism; Random Allocation; Rats; Rats, Sprague-Dawley
- From: Chinese Journal of Burns 2007;23(4):257-260
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate the influence of early enteral immunonutrition on immunological function of body and intestine in severely scalded rats.
METHODSSixty-four healthy adult SD rats were subjected to 30% TBSA full-thickness scald and randomly divided into enteral nutrition group (EN, n = 32) and enteral immunonutrition group (EIN, n = 32). Another 8 healthy rats were enrolled as normal controls. The changes in CD3+, CD4+, CD8+ T lymphocyte subsets, the PCNA expression in intestinal mucosa,the amount of plasmocytes in lamina propria of small intestine and the content of s-IgA in small intestine were determined on 1, 4, 7 and 10 post-burn days (PBD).
RESULTS(1) CD3+, CD4+ and the ratio of CD4+/CD8+ were remarkably declined, while CD8+ was obviously raised after scald in EN group, and there were statistically significant differences at most of time-points when compared with those in control group (P < 0.05 or P < 0.01). CD3+, CD4+ and the ratio of CD4+/CD8+ on 7 and 10 PBD in EIN group were obviously higher (increased from 4 PBD on, and it was 1.86 +/- 0.25 on 10 PBD) than those in EN group (CD4+/CD8+ was 1.26 +/- 0.10 on 10 PBD), while CD8+ in EIN group was evidently lower than that in EN group (P < 0.01). (2) The level of PCNA expression in intestinal mucosa, the amount of plasmocytes in lamina propria of small intestine and the content of s-IgA in small intestine in EIN group were increased significantly compared with EN group on 4, 7, 10 PBD (P < 0.05 or P < 0.01).
CONCLUSIONEarly enteral immunonutrition can improve immunological function of body and intestine after severe scald, with better results than enteral nutrition.