Fetal brain ultrasound measures and maternal nutrition: A feasibility study in Ecuador

Author(s):  
Carrie A. Sibbald ◽  
Jennifer L. Nicholas ◽  
Melissa Chapnick ◽  
Naima Ross ◽  
Patricia L. Gandor ◽  
...  
Author(s):  
Xavier P. Burgos-Artizzu ◽  
David Coronado-Gutiérrez ◽  
Brenda Valenzuela-Alcaraz ◽  
Kilian Vellvé ◽  
Elisenda Eixarch ◽  
...  

2019 ◽  
Vol 39 (4) ◽  
pp. 303-307
Author(s):  
Nicola Volpe ◽  
Andrea Dall'Asta ◽  
Giovanni Battista Luca Schera ◽  
Elvira Di Pasquo ◽  
Tiziana Frusca ◽  
...  

2011 ◽  
Vol 31 (4) ◽  
pp. 360-366 ◽  
Author(s):  
Natalie Farkas ◽  
Chen Hoffmann ◽  
Liat Ben-Sira ◽  
Dorit Lev ◽  
Avraham Schweiger ◽  
...  

2018 ◽  
Vol 46 ◽  
pp. 1-14 ◽  
Author(s):  
Ana I.L. Namburete ◽  
Weidi Xie ◽  
Mohammad Yaqub ◽  
Andrew Zisserman ◽  
J. Alison Noble

2002 ◽  
Vol 173 (1) ◽  
pp. 131-141 ◽  
Author(s):  
JC Osgerby ◽  
DC Wathes ◽  
D Howard ◽  
TS Gadd

Modifications in maternal nutrition during pregnancy can significantly disrupt fetal growth and subsequent post-natal health and survival. This study investigated the effects of undernutrition on fetal growth and the potential mechanisms involved. Tissue from pregnant ewes (n=27) was investigated on days 45, 90 and 135 of gestation (term = approximately 150 days). The thoracic girth (P<0.05) was greater in fetuses from nutrient restricted ewes on day 45 and there was also a trend towards an increased gut weight (P<0.08). By day 90, the fetal brain and thymus weight were lighter in underfed than in well-fed animals whilst the weight of the fetal ovaries was heavier (P<0.05). On day 135 the fetal heart, pancreas, thymus, gut and kidney weights were lighter in undernourished ewes (P<0.05). When expressed as a percentage of fetal body weight, significance was retained in the heart, pancreas and thymus (P<0.05). Bone growth was also affected. At day 90 the fetal femur and metatarsal were longer in underfed mothers (P<0.05). In contrast, the fetal humerus and scapula were shorter in underfed than in well-fed animals on day 135 (P<0.05) when the weight of the semitendinosus muscle (P<0.05) was also reduced. The fall in fetal glucose (P<0.1), insulin (P<0.01) and IGF-I (P<0.01) levels in underfed ewes on day 135 may have compromised fetal growth. Fetal plasma IGF binding protein-2 also increased between days 90 and 135 in underfed ewes (P<0.03), whilst levels were unaltered in well-fed animals. Although maternal and fetal plasma IGF-I levels increased with gestation (P<0.01) and the placentome morphology altered in all ewes (P<0.05), the fall in placental mass (P<0.05), amniotic and allantoic glucose concentrations (P<0.05) and maternal plasma glucose and insulin levels (P<0.05) in underfed ewes in late gestation may have compromised fetal substrate delivery. These perturbations in fetal development may have significant implications on adult health and carcass conformation, raising important health and economic issues in medical and agricultural sectors.


Nutrients ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1464
Author(s):  
Morgane Frapin ◽  
Simon Guignard ◽  
Dimitri Meistermann ◽  
Isabelle Grit ◽  
Valentine S. Moullé ◽  
...  

Fetal brain development is closely dependent on maternal nutrition and metabolic status. Maternal protein restriction (PR) is known to be associated with alterations in the structure and function of the hypothalamus, leading to impaired control of energy homeostasis and food intake. The objective of this study was to identify the cellular and molecular systems underlying these effects during fetal development. We combined a global transcriptomic analysis on the fetal hypothalamus from a rat model of maternal PR with in vitro neurosphere culture and cellular analyses. Several genes encoding proteins from the mitochondrial respiratory chain complexes were overexpressed in the PR group and mitochondrial metabolic activity in the fetal hypothalamus was altered. The level of the N6-methyladenosine epitranscriptomic mark was reduced in the PR fetuses, and the expression of several genes involved in the writing/erasing/reading of this mark was indeed altered, as well as genes encoding several RNA-binding proteins. Additionally, we observed a higher number of neuronal-committed progenitors at embryonic day 17 (E17) in the PR fetuses. Together, these data strongly suggest a metabolic adaptation to the amino acid shortage, combined with the post-transcriptional control of protein expression, which might reflect alterations in the control of the timing of neuronal progenitor differentiation.


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