PCR measurements of insulin-like growth factor-1 and the growth hormone receptor. Bars represent the mean expression of mRNA of insulin-like growth factor-1 (IGF-I) and growth hormone receptor (GHR), normalized to 18S rRNA (mean normalized expression), measured in the liver from rats 72 hours after laparotomy only (Sham) or cecal ligation and puncture (CLP), with postoperative saline infusion (Starve), enteral nutrition (EN) or parenteral nutrition (PN). Error bars represent standard error of the mean. Significant differences between groups indicated where P < 0.05.
O'Leary et al. Critical Care 2007 11:R79 doi:10.1186/cc5972