Polymorphisms in maternal and fetal genes encoding for proteins involved in extracellular matrix metabolism alter the risk for small-for-gestational-age

Digna R.Velez Edwards, Roberto Romero*, Juan Pedro Kusanovic, Sonia S. Hassan, Shali Mazaki-Tovi, Edi Vaisbuch, Chong Jai Kim, Offer Erez, Tinnakorn Chaiworapongsa, Brad D. Pearce, Jacquelaine Bartlett, Lara A. Friel, Benjamin A. Salisbury, Madan Kumar Anant, Gerald F. Vovis, Min Seob Lee, Ricardo Gomez, Ernesto Behnke, Enrique Oyarzun, Gerard TrompRamkumar Menon, Scott M. Williams

*Autor correspondiente de este trabajo

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

16 Citas (Scopus)


Objective. To examine the association between maternal and fetal genetic variants and small-for-gestational-age (SGA). Methods. A casecontrol study was conducted in patients with SGA neonates (530 maternal and 436 fetal) and controls (599 maternal and 628 fetal); 190 candidate genes and 775 SNPs were studied. Single-locus, multi-locus and haplotype association analyses were performed on maternal and fetal data with logistic regression, multifactor dimensionality reduction (MDR) analysis, and haplotype-based association with 2 and 3 marker sliding windows, respectively. Ingenuity pathway analysis (IPA) software was used to assess pathways that associate with SGA. Results. The most significant single-locus association in maternal data was with a SNP in tissue inhibitor of metalloproteinase 2 (TIMP2) (rs2277698 OR=1.71, 95% CI [1.26-2.32], p=0.0006) while in the fetus it was with a SNP in fibronectin 1 isoform 3 preproprotein (FN1) (rs3796123, OR=1.46, 95% CI [1.20-1.78], p=0.0001). Both SNPs were adjusted for potential confounders (maternal body mass index and fetal sex). Haplotype analyses resulted in associations in α 1 type I collagen preproprotein (COL1A1, rs1007086-rs2141279-rs17639446, global p=0.006) in mothers and FN1 (rs2304573-rs1250204-rs1250215, global p=0.045) in fetuses. Multi-locus analyses with MDR identified a two SNP model with maternal variants collagen type V α 2 (COL5A2) and plasminogen activator urokinase (PLAU) predicting SGA outcome correctly 59% of the time (p=0.035). Conclusions. Genetic variants in extracellular matrix-related genes showed significant single-locus association with SGA. These data are consistent with other studies that have observed elevated circulating fibronectin concentrations in association with increased risk of SGA. The present study supports the hypothesis that DNA variants can partially explain the risk of SGA in a cohort of Hispanic women.

Idioma originalInglés
Páginas (desde-hasta)362-380
Número de páginas19
PublicaciónJournal of Maternal-Fetal and Neonatal Medicine
EstadoPublicada - feb. 2011
Publicado de forma externa


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