title: Fetal and maternal peroxisome proliferator-activated receptor gamma2 Pro12Ala does not influence birth weight.
abstract: The association between the peroxisome proliferator-activated receptor (PPAR)gamma2 Pro12Ala polymorphism and insulin resistance is reported to depend on low birth weight. Low birth weight itself has been linked to type 2 diabetes and cardiovascular diseases in adulthood. We assessed whether the PPARgamma2 Pro12Ala polymorphism determines body size at birth and whether metabolic differences between the genotypes are already detectable in the newborn. This study was conducted at the obstetrics department of the Charité, Berlin, Germany. One thousand nine hundred thirty white woman/child pairs were consecutively included and genotyped. The newborn's weight, length, and head circumference were measured. Total glycated hemoglobin in blood served as a surrogate of fetal insulin resistance and glucose use. We found that neither the fetal nor the maternal Pro12Ala genotype determined body size or total glycated hemoglobin at birth. The results suggest that the PPARgamma2 Pro12Ala polymorphism is not relevant for intrauterine growth. Previously reported effects of PPARgamma2 Pro12Ala on insulin resistance seem to arise later in life.
authors.affiliation: Center for Cardiovascular Research/Institute of Pharmacology, Charité Mitte, Hessische Str. 3-4, 10115 Berlin, Germany.
authors.forename: Thiemo
authors.initials: T
authors.lastname: Pfab
authors.forename: Christine
authors.initials: C
authors.lastname: Poralla
authors.forename: Claus-Michael
authors.initials: CM
authors.lastname: Richter
authors.forename: Michael
authors.initials: M
authors.lastname: Godes
authors.forename: Torsten
authors.initials: T
authors.lastname: Slowinski
authors.forename: Friedrich
authors.initials: F
authors.lastname: Priem
authors.forename: Horst
authors.initials: H
authors.lastname: Halle
authors.forename: Berthold
authors.initials: B
authors.lastname: Hocher
mesh_terms: D001724:Birth Weight / Q000235:genetics*; D001827:Body Height / Q000235:genetics; D001835:Body Weight / Q000235:genetics; D003924:Diabetes Mellitus, Type 2 / Q000235:genetics; D004734:Energy Metabolism / Q000235:genetics*; D005260:Female; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006442:Glycated Hemoglobin / Q000032:analysis; D006801:Humans; D007231:Infant, Newborn / Q000378:metabolism*; D007333:Insulin Resistance / Q000235:genetics; D008297:Male; D047495:PPAR gamma / Q000235:genetics*; D011110:Polymorphism, Genetic; D011247:Pregnancy
chemical_list: D006442:Glycated Hemoglobin; D047495:PPAR gamma