Skip to Main content Skip to Navigation
Journal articles

Protective effects of recombinant growth hormone on intestinal mucosa in rats receiving abdominal radiotherapy.

Abstract : BACKGROUND AND AIMS: Radiation injury to the gut induces nutrient losses that compromise the body ability to adequately fight infection, heal wounds and recover from illness. Recombinant growth hormone (rhGH), is known to enhance anabolism, therefore, we tested the hypothesis that rhGH preserves whole body growth and trophism of the jejunum and ileum of irradiated rats. METHODS: After acclimatization period, the rats were divided in three groups: (1). control rats (C), (2). rats irradiated with a single dose of 10 Gy (group A); (3). rats irradiated with a single dose of 5 Gy (Group B); after irradiation, rats were given subcutaneously (sc) saline or 0.25 or 0.50 mg rhGH/kg BW/d for the following 6 days. Body weight changes were recorded during this time. On day 6 post-radiation, rats were killed and small intestine mucosa dry and wet weights were measured, as well as mucosa protein content. RESULTS: Group A rats lost body weight during the 6-day post-radiation period, regardless of rhGH treatment and dosage. rhGH was effective in preventing weight loss and normalizing growth in group B rats (saline 23.1+/-11.1, vs. controls P<0.05; rhGH: 35.0+/-10.0 g BW/d, vs. controls P = ns). Trophic effect of rhGH was observed on mucosa weight and mucosa protein content in rats irradiated with 5 Gy, but not in those receiving 10 Gy. CONCLUSION: rhGH seems to normalize growth and mucosa protein content in irradiated rats. However, rhGH beneficial effects were observed only in rats receiving the lower dose of radiation.
Document type :
Journal articles
Complete list of metadatas

https://www.hal.inserm.fr/inserm-00389955
Contributor : Sarah Hamant <>
Submitted on : Saturday, May 30, 2009 - 12:49:11 PM
Last modification on : Thursday, August 27, 2020 - 11:36:03 AM

Identifiers

  • HAL Id : inserm-00389955, version 1
  • PUBMED : 12468368

Collections

LBFA | UGA

Citation

C. A. Raguso, Xavier Leverve, Claude Pichard. Protective effects of recombinant growth hormone on intestinal mucosa in rats receiving abdominal radiotherapy.. Clinical Nutrition, Elsevier, 2002, 21 (6), pp.487-90. ⟨inserm-00389955⟩

Share

Metrics

Record views

123