title: Elevated levels of insulin-like growth factor binding protein-1 in fetal distress.
abstract: OBJECTIVE
  To investigate the association between fetal distress (abnormal cardiotocograph tracing and/or a low fetal pH) and the levels of fetal IGFBP-1.
  
  
  METHODS
  Prospective comparative study.
  
  
  METHODS
  Twenty-two women in labour with evidence of fetal distress defined by FIGO criteria and 19 women in uncomplicated labour. The gestation range was 37 to 42 weeks and birthweight range was 2500 to 4240 g. IGFBP-1 was determined by radioimmunoassay.
  
  
  RESULTS
  The umbilical levels of IGFBP-1 were significantly higher in the study group compared with the control group (median 282.5 micrograms/l versus 128 micrograms/l, P = 0.0046; Mann-Whitney U test). There was a significant inverse correlation between fetal IGFBP-1 and cord pH (r = 0.58, P < or = 0.0001). There was no difference between the maternal serum levels of IGFBP-1 in the two groups.
  
  
  CONCLUSIONS
  Umbilical IGFBP-1 is elevated in association with fetal distress.
authors.affiliation: Department of Obstetrics and Gynaecology and Reproductive Physiology, St Bartholomew's Hospital Medical College, London, UK.
authors.forename: R A
authors.initials: RA
authors.lastname: Crawford
authors.forename: F A
authors.initials: FA
authors.lastname: Hills
authors.forename: A
authors.initials: A
authors.lastname: Farkas
authors.forename: T
authors.initials: T
authors.lastname: Chard
mesh_terms: D000293:Adolescent; D000328:Adult; D015148:Cardiotocography; D002352:Carrier Proteins / Q000097:blood*; D005260:Female; D005312:Fetal Blood / Q000737:chemistry*; D005316:Fetal Distress / Q000097:blood*; D005865:Gestational Age; D006801:Humans; D006863:Hydrogen-Ion Concentration; D018970:Insulin-Like Growth Factor Binding Protein 1; D008297:Male; D011247:Pregnancy; D011446:Prospective Studies
chemical_list: D002352:Carrier Proteins; D018970:Insulin-Like Growth Factor Binding Protein 1