Beneficial effect of recombinant human growth hormone on the intestinal mucosa barrier of septic rats
Braz. j. med. biol. res
;
40(1): 41-48, Jan. 2007. ilus, tab
Article
Dans Anglais
| LILACS
| ID: lil-439669
ABSTRACT
The objective of the present study was to investigate the effects of recombinant human growth hormone (rhGH) on the intestinal mucosa barrier of septic rats and explore its possible mechanism. Female Sprague-Dawley rats were randomized into three groups control, Escherichia coli-induced sepsis (S) and treatment (T) groups. Groups S and T were subdivided into subgroups 1d and 3d, respectively. Expression of liver insulin-like growth factor-1 (IGF-1) mRNA, Bcl-2 and Bax protein levels and the intestinal Bax/Bcl-2 ratio, and plasma GH and IGF-1 levels were determined. Histological examination of the intestine was performed and bacterial translocation was determined. rhGH significantly attenuated intestinal mucosal injuries and bacterial translocation in septic rats, markedly decreased Bax protein levels, inhibited the decrease of Bcl-2 protein expression and maintained the Bax/Bcl-2 ratio in the intestine. rhGH given after sepsis significantly improved levels of plasma GH (T1d 1.28 ± 0.24; T3d 2.14 ± 0.48 æg/L vs S1d 0.74 ± 0.12; S3d 0.60 ± 0.18 æg/L; P < 0.05) and IGF-1 (T1d 168.94 ± 65.67; T3d 201.56 ± 64.98 æg/L vs S1d 116.72 ± 13.96; S3d 107.50 ± 23.53 æg/L; P < 0.05) and expression of liver IGF-1 mRNA (T1d 0.98 ± 0.20; T3d 1.76 ± 0.17 vs S1d 0.38 ± 0.09; S3d 0.46 ± 0.10; P < 0.05). These findings indicate that treatment with rhGH had beneficial effects on the maintenance of the integrity of the intestinal mucosa barrier in septic rats.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Choc septique
/
Translocation bactérienne
/
Hormone de croissance humaine
/
Infections à Escherichia coli
/
Muqueuse intestinale
Type d'étude:
Essai clinique contrôlé
Limites du sujet:
Animaux
/
Femelle
/
Humains
langue:
Anglais
Texte intégral:
Braz. j. med. biol. res
Thème du journal:
Biologie
/
Médicament
Année:
2007
Type:
Article
/
descriptif de projet
Pays d'affiliation:
Chine
Institution/Pays d'affiliation:
Sichuan University/CN
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