Insulin-like growth factor I (IGF-I) as a sensitive biomarker of catabolism in patients with gastrointestinal diseases.
Gastrointestinal ailments evoke changes in the hypothalamic-pituitary-adrenal (HPA) axis and modulation of hepatic protein synthesis. We examined the catabolic effect of certain primary gastrointestinal diseases and surgery on the concentration of insulin-like growth factor I (IGF-I). Blood samples from patients with gastric cancer (GC), cholecystitis (CC), or inguinal hernia (IH) were taken before and after surgery. The concentrations of IGF-I, IGF binding protein-1 (IGFBP-1), insulin, cortisol, and glucose were determined. In GC patients the concentration of IGF-I was reduced and the concentrations of IGFBP-1 and cortisol were elevated preoperatively; after surgery, IGFBP-1 normalized. In CC patients the concentration of IGF-I was low and the concentration of IGFBP-1 was high before cholecystectomy; after surgery IGFBP-1 returned to normal and the concentration of cortisol increased. In IH patients the concentration of IGF-I was low and the concentrations of IGFBP-1 and cortisol were high before surgery; after laparotomy IGFBP-1 returned to normal. The metabolic changes were present in all analyzed patient groups, regardless of the severity of disease and nutrition. The concentration of IGF-I was reduced before surgery and remained reduced after, recommending IGF-I as a metabolic marker in both pre and postoperative examination of patients.
Nedić
Olgica
O
Institute for the Application of Nuclear Energy (INEP), University of Belgrade, Belgrade Serbia. olgica@inep.co.yu
Malenković
Vesna
V
Nikolić
Judith Anna
JA
Baricević
Ivona
I
D000328:Adult; D000368:Aged; D015415:Biomarkers / Q000097:blood / Q000378:metabolism; D001786:Blood Glucose / Q000032:analysis; D005767:Gastrointestinal Diseases / Q000378:metabolism* / Q000601:surgery; D006801:Humans; D006854:Hydrocortisone / Q000097:blood; D007328:Insulin / Q000097:blood; D018970:Insulin-Like Growth Factor Binding Protein 1 / Q000097:blood; D007334:Insulin-Like Growth Factor I / Q000378:metabolism*; D008875:Middle Aged
D015415:Biomarkers; D001786:Blood Glucose; D007328:Insulin; D018970:Insulin-Like Growth Factor Binding Protein 1; D007334:Insulin-Like Growth Factor I; D006854:Hydrocortisone