scholarly journals Long-term reorganization of structural brain networks in a rabbit model of intrauterine growth restriction

NeuroImage ◽  
2014 ◽  
Vol 100 ◽  
pp. 24-38 ◽  
Author(s):  
Dafnis Batalle ◽  
Emma Muñoz-Moreno ◽  
Ariadna Arbat-Plana ◽  
Miriam Illa ◽  
Francesc Figueras ◽  
...  
Keyword(s):  
Intrauterine Growth Restriction ◽  
Brain Networks ◽  
Rabbit Model ◽  
Growth Restriction ◽  
Intrauterine Growth ◽  
Structural Brain

Structural Brain Changes during the Neonatal Period in a Rabbit Model of Intrauterine Growth Restriction

2020 ◽  
Vol 42 (5-6) ◽  
pp. 217-229
Author(s):  
Laura Pla ◽  
Miriam Illa ◽  
Carla Loreiro ◽  
Mari Carmen Lopez ◽  
Paula Vázquez-Aristizabal ◽  
...  
Keyword(s):  
Intrauterine Growth Restriction ◽  
Neonatal Period ◽  
Rabbit Model ◽  
Functional Results ◽  
Growth Restriction ◽  
Functional Changes ◽  
Intrauterine Growth ◽  
Brain Changes ◽  
Neuronal Arborization ◽  
Structural Brain

Background: Intrauterine growth restriction (IUGR) is associated with abnormal neurodevelopment, but the associated structural brain changes are poorly documented. The aim of this study was to describe in an animal model the brain changes at the cellular level in the gray and white matter induced by IUGR during the neonatal period. Methods: The IUGR model was surgically induced in pregnant rabbits by ligating 40–50% of the uteroplacental vessels in 1 horn, whereas the uteroplacental vessels of the contralateral horn were not ligated. After 5 days, IUGR animals from the ligated horn and controls from the nonligated were delivered. On the day of delivery, perinatal data and placentas were collected. On postnatal day 1, functional changes were first evaluated, and thereafter, neuronal arborization in the frontal cortex and density of pre-oligodendrocytes, astrocytes, and microglia in the corpus callosum were evaluated. Results: Higher stillbirth in IUGR fetuses together with a reduced birth weight as compared to controls was evidenced. IUGR animals showed poorer functional results, an altered neuronal arborization pattern, and a decrease in the pre-oligodendrocytes, with no differences in microglia and astrocyte densities. Conclusions: Overall, in the rabbit model used, IUGR is related to functional and brain changes evidenced already at birth, including changes in the neuronal arborization and abnormal oligodendrocyte maturation.

Strategies for intra-amniotic administration of fetal therapy in a rabbit model of intrauterine growth restriction

2021 ◽  
pp. 153537022110035
Author(s):  
Mari Kinoshita ◽  
Fàtima Crispi ◽  
Carla Loreiro ◽  
Eduard Gratacós ◽  
Míriam Illa ◽  
...  
Keyword(s):  
Intrauterine Growth Restriction ◽  
Intraperitoneal Injection ◽  
Rabbit Model ◽  
Osmotic Pump ◽  
Growth Restriction ◽  
Technical Failure ◽  
Fetal Therapy ◽  
Amniotic Cavity ◽  
Intrauterine Growth ◽  
Fetal Survival

Intrauterine growth restriction affects up to 10% of all pregnancies, leading to fetal programming with detrimental consequences for lifelong health. However, no therapeutic strategies have so far been effective to ameliorate these consequences. Our previous study has demonstrated that a single dose of nutrients administered into the amniotic cavity, bypassing the often dysfunctional placenta via intra-amniotic administration, improved survival at birth but not birthweight in an intrauterine growth restriction rabbit model. The aim of this study was to further develop an effective strategy for intra-amniotic fetal therapy in an animal model. Intrauterine growth restriction was induced by selective ligation of uteroplacental vessels on one uterine horn of pregnant rabbits at gestational day 25, and fetuses were delivered by cesarean section on GD30. During the five days of intrauterine growth restriction development, three different methods of intra-amniotic administration were used: continuous intra-amniotic infusion by osmotic pump, multiple intra-amniotic injections, and single fetal intraperitoneal injection. Technical feasibility, capability to systematically reach the fetus, and survival and birthweight of the derived offspring were evaluated for each technique. Continuous intra-amniotic infusion by osmotic pump was not feasible owing to the high occurrence of catheter displacement and amnion rupture, while methods using two intra-amniotic injections and one fetal intraperitoneal injection were technically feasible but compromised fetal survival. Taking into account all the numerous factors affecting intra-amniotic fetal therapy in the intrauterine growth restriction rabbit model, we conclude that an optimal therapeutic strategy with low technical failure and positive fetal impact on both survival and birthweight still needs to be found.

scholarly journals The Long-term impact of intrauterine growth restriction in a diverse US cohort of children: The EPOCH study

Obesity ◽  
2013 ◽  
Vol 22 (2) ◽  
pp. 608-615 ◽  
Author(s):  
Tessa L. Crume ◽  
Ann Scherzinger ◽  
Elizabeth Stamm ◽  
Robert McDuffie ◽  
Kimberly J. Bischoff ◽  
...  
Keyword(s):  
Intrauterine Growth Restriction ◽  
Growth Restriction ◽  
Intrauterine Growth ◽  
Long Term Impact

scholarly journals Consequences in Infants That Were Intrauterine Growth Restricted

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Erich Cosmi ◽  
Tiziana Fanelli ◽  
Silvia Visentin ◽  
Daniele Trevisanuto ◽  
Vincenzo Zanardo
Keyword(s):  
Intrauterine Growth Restriction ◽  
Placental Insufficiency ◽  
Growth Restriction ◽  
Growth Potential ◽  
Intrauterine Growth ◽  
Cardiovascular Abnormalities ◽  
Short And Long Term

Intrauterine growth restriction is a condition fetus does not reach its growth potential and associated with perinatal mobility and mortality. Intrauterine growth restriction is caused by placental insufficiency, which determines cardiovascular abnormalities in the fetus. This condition, moreover, should prompt intensive antenatal surveillance of the fetus as well as follow-up of infants that had intrauterine growth restriction as short and long-term sequele should be considered.

scholarly journals Whey Versus Casein as a Protein Source during the Weaning Period: Impact on Growth and Later Adiposity and Glucose Homeostasis in a Rat Model of Intrauterine Growth Restriction

Nutrients ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3399
Author(s):  
Yasaman Shahkhalili ◽  
Florence Blancher-Budin ◽  
Cathriona Monnard ◽  
Julie Moulin ◽  
José Sanchez-Garcia ◽  
...  
Keyword(s):  
Glucose Homeostasis ◽  
Intrauterine Growth Restriction ◽  
Early Life ◽  
Growth Restriction ◽  
Protein Source ◽  
Intrauterine Growth ◽  
Populations At Risk ◽  
Ad Libitum ◽  
The Impact

The impact of early life protein source (whey vs. casein) on short- and long-term glucose homeostasis and adiposity is unknown and was investigated in this study. At the end of the suckling period, non-IUGR (intrauterine growth restriction) and IUGR pups were separated from dams and were randomized into four groups. From age 21–49 days, non-IUGR and IUGR pups were fed ad-libitum chow or a semi-synthetic diet (20% from protein; casein or whey) and from age 50–199 days, all groups were fed ad-libitum chow. Food intake, body composition, glucose, and insulin homeostasis were assessed. Among the chow groups, IUGR had slower growth and higher fasting glucose at age 42 days, as well as higher fasting and AUC glucose at age 192 days relative to non-IUGR. The whey IUGR group had a slower growth rate and higher fasting glycemia in early life (age 21–49 days) and higher HOMA-IR later in life (age 120–122 and 190–192 days) relative to casein IUGR. This study shows the potential advantage of casein relative to whey during weaning on short term energy intake, growth, and glucose homeostasis in an IUGR model and reveals, for the first time, its long term impact on insulin sensitivity, which may have implications for later metabolic health, particularly in small-for-gestational-age populations at risk of type 2 diabetes.

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