OBJECTIVE: We hypothesized that women with small-for-gestational-age (SGA) neonates would have lower concentrations of leptin compared to women with appropriately grown infants (AGA). STUDY DESIGN: This is a nested case-control study of normotensive nulliparous women. Cases (n = 28) delivered SGA < 10 percentile and controls (n = 77) delivered AGA. Maternal plasma leptin concentrations were compared at 18, 28, and 40 weeks' gestation via repeated measures. RESULTS: Maternal leptin concentrations at 18 weeks were correlated with prepregnancy BMI (r = 0.69, P < .0001) and early pregnancy waist circumference (r = 0.59, P < .0001). After adjustment for maternal body composition, leptin was lower across pregnancy in women with SGA compared to AGA neonates (13.6 vs 15.2 ng/mL at 18 weeks; 13.6 vs 17.3 ng/mL at 28 weeks; 16.6 vs 20.7 ng/mL at 40 weeks; P = .04). CONCLUSION: Maternal leptin was correlated with maternal adiposity; however, after adjustment for body composition, leptin was lower across pregnancy in women with SGA.
OBJECTIVE: We hypothesized that women with small-for-gestational-age (SGA) neonates would have lower concentrations of leptin compared to women with appropriately grown infants (AGA). STUDY DESIGN: This is a nested case-control study of normotensive nulliparous women. Cases (n = 28) delivered SGA < 10 percentile and controls (n = 77) delivered AGA. Maternal plasma leptin concentrations were compared at 18, 28, and 40 weeks' gestation via repeated measures. RESULTS: Maternal leptin concentrations at 18 weeks were correlated with prepregnancy BMI (r = 0.69, P < .0001) and early pregnancy waist circumference (r = 0.59, P < .0001). After adjustment for maternal body composition, leptin was lower across pregnancy in women with SGA compared to AGA neonates (13.6 vs 15.2 ng/mL at 18 weeks; 13.6 vs 17.3 ng/mL at 28 weeks; 16.6 vs 20.7 ng/mL at 40 weeks; P = .04). CONCLUSION: Maternal leptin was correlated with maternal adiposity; however, after adjustment for body composition, leptin was lower across pregnancy in women with SGA.
Authors: Janet M Catov; Roberta B Ness; Melissa F Wellons; David R Jacobs; James M Roberts; Erica P Gunderson Journal: J Clin Endocrinol Metab Date: 2010-05-25 Impact factor: 5.958
Authors: Shali Mazaki-Tovi; Adi L Tarca; Edi Vaisbuch; Juan Pedro Kusanovic; Nandor Gabor Than; Tinnakorn Chaiworapongsa; Zhong Dong; Sonia S Hassan; Roberto Romero Journal: J Perinat Med Date: 2016-10-01 Impact factor: 1.901
Authors: E Shibata; C A Hubel; R W Powers; F von Versen-Hoeynck; H Gammill; A Rajakumar; J M Roberts Journal: Placenta Date: 2008-08-20 Impact factor: 3.481