Cun Li1,2, Susan Jenkins1, McKenna M Considine1, Laura A Cox2,3, Kenneth G Gerow4, Hillary F Huber1, Peter W Nathanielsz1,2. 1. Texas Pregnancy and Life-course Health Center, Department of Animal Sciences, University of Wyoming, Laramie, Wyoming. 2. Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, Texas. 3. Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Center for Precision Medicine, Winston-Salem, North Carolina. 4. Department of Statistics, University of Wyoming, Laramie, Wyoming.
Abstract
BACKGROUND: Non-human primate models of developmental programming by maternal obesity (MO) are needed for translation to human programming outcomes. We present baboon offspring (F1) morphometry, blood cortisol, and adrenocorticotropic hormone (ACTH) from 0.9 gestation to 0-2 years. METHODS: Control mothers ate chow; MO mothers ate high-fat high-energy diet pre-pregnancy through lactation. RESULTS: Maternal obesity mothers weighed more than controls pre-pregnancy. Maternal obesity gestational weight gain was lower with no correlation with fetal or placenta weights. At 0.9 gestation, MO and control F1 morphometry and ACTH were similar. MO-F1 0.9 gestation male cortisol was lower, rising slower from 0-2 years vs control-F1. At birth, male MO-F1 and control-F1 weights were similar, but growth from 0-2 years was steeper in MO-F1; newborn female MO-F1 weighed more than control-F1 but growth from 0-2 years was similar. ACTH did not change in either sex. CONCLUSIONS: Maternal obesity produced sexually dimorphic fetal and postnatal growth and hormonal phenotypes.
BACKGROUND: Non-human primate models of developmental programming by maternal obesity (MO) are needed for translation to human programming outcomes. We present baboon offspring (F1) morphometry, blood cortisol, and adrenocorticotropic hormone (ACTH) from 0.9 gestation to 0-2 years. METHODS: Control mothers ate chow; MO mothers ate high-fat high-energy diet pre-pregnancy through lactation. RESULTS:Maternal obesity mothers weighed more than controls pre-pregnancy. Maternal obesity gestational weight gain was lower with no correlation with fetal or placenta weights. At 0.9 gestation, MO and control F1 morphometry and ACTH were similar. MO-F1 0.9 gestation male cortisol was lower, rising slower from 0-2 years vs control-F1. At birth, male MO-F1 and control-F1 weights were similar, but growth from 0-2 years was steeper in MO-F1; newborn female MO-F1 weighed more than control-F1 but growth from 0-2 years was similar. ACTH did not change in either sex. CONCLUSIONS:Maternal obesity produced sexually dimorphic fetal and postnatal growth and hormonal phenotypes.
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