title: Maternal serum adiponectin at 11-13 weeks of gestation in pregnancies delivering small for gestation neonates.
abstract: OBJECTIVE
  To investigate whether maternal serum levels of adiponectin in the first trimester are altered in pregnancies that subsequently deliver small for gestational age (SGA) neonates.
  
  
  METHODS
  Maternal serum adiponectin and pregnancy-associated plasma protein A (PAPP-A) were measured at 11-13 weeks' gestation in 50 singleton normotensive pregnancies that delivered SGA neonates and 300 non-SGA controls. The median adiponectin and PAPP-A levels in the SGA and non-SGA groups, expressed as multiple of the unaffected median (MoM), were compared.
  
  
  RESULTS
  The distribution of serum adiponectin was made gaussian by square root (sqrt) transformation. Regression analysis in the non-SGA group demonstrated that for sqrt adiponectin a significant independent contribution was provided by maternal age, weight, smoking status, African and South-Asian racial origin. Each value in the SGA and non-SGA group was then converted into a multiple of the non-SGA median (MoM) after adjustment for maternal characteristics. In the SGA group, compared to the non-SGA controls, median maternal serum PAPP-A was decreased (0.79, interquartile range [IQR] 0.54-1.06 MoM vs. 1.00, IQR 0.71-1.39 MoM) but adiponectin MoM was not significantly different (0.89, IQR 0.65-1.31 MoM vs. 1.02, IQR 0.70-1.29 MoM).
  
  
  CONCLUSIONS
  Maternal serum adiponectin is not a useful biochemical marker for early prediction of SGA.
authors.affiliation: Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK.
authors.forename: Surabhi
authors.initials: S
authors.lastname: Nanda
authors.forename: Ranjit
authors.initials: R
authors.lastname: Akolekar
authors.forename: Danielle
authors.initials: D
authors.lastname: Sodre
authors.forename: Eirini
authors.initials: E
authors.lastname: Vaikousi
authors.forename: Kypros H
authors.initials: KH
authors.lastname: Nicolaides
mesh_terms: D052242:Adiponectin / Q000097:blood*; D000328:Adult; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D007236:Infant, Small for Gestational Age / Q000097:blood*; D011247:Pregnancy; D011266:Pregnancy-Associated Plasma Protein-A / Q000032:analysis; D012044:Regression Analysis
chemical_list: D052242:Adiponectin; D011266:Pregnancy-Associated Plasma Protein-A