Placental expression of the obesity-associated gene FTO is reduced by fetal growth restriction but not by macrosomia in rats and humans

2012 ◽  
Vol 4 (2) ◽  
pp. 134-138 ◽  
Author(s):  
S. Mayeur ◽  
O. Cisse ◽  
A. Gabory ◽  
S. Barbaux ◽  
D. Vaiman ◽  
...  
Keyword(s):  
Weight Gain ◽  
Birth Weight ◽  
Fetal Growth ◽  
Genetic Variants ◽  
Intrauterine Growth Restriction ◽  
Growth Restriction ◽  
Intrauterine Growth ◽  
Placental Villi ◽  
Insight Into ◽  
Epigenetic Processes

Genetic variants in the FTO (fat mass- and obesity-associated) gene have the highest association of all obesity-associated genes. Its placental expression was shown to relate to birth weight, suggesting that it may participate in the control of fetal weight gain. To gain more insight into the implication of FTO in fetal growth, we measured its placental expression in samples including extremes of abnormal fetal growth, such as after intrauterine growth restriction (IUGR) or macrosomia in both rats and humans. In rats, fetal growth was modulated by maternal nutritional modifications. In humans, placental villi were collected from pathological pregnancies (i.e. with IUGR or fetal macrosomia). Placental FTO mRNA expression was reduced by IUGR but was not significantly affected by macrosomia in either rats or humans. Our data suggest that placental FTO may participate in interactions between the in utero environment and the control of fetal growth under IUGR conditions by modulating epigenetic processes.

scholarly journals The weight gain influence of pregnant women under different clinical conditions on weight at the birth of newborns.

2020 ◽  
Author(s):  
Márcia Dornelles Machado Mariot ◽  
Daniela Cortés Kretzer ◽  
Isadora Musse Nunes ◽  
Marcelo Zubaran Goldani ◽  
Juliana Rombaldi Bernardi ◽  
...  
Keyword(s):  
Weight Gain ◽  
Birth Weight ◽  
Pregnant Women ◽  
Gestational Weight Gain ◽  
Intrauterine Growth Restriction ◽  
Growth Restriction ◽  
Intrauterine Growth ◽  
Gestational Weight ◽  
Clinical Conditions ◽  
And Control

Abstract BACKGROUND: This study evaluate the influence of weight gain of pregnant women under different clinical conditions (Tobacco, Diabetes mellitus (DM), Hypertension, Intrauterine growth restriction (IUGR) and Control) on the birth weight of newborns. METHODS: This is an observational, longitudinal study nested in a prospective controlled cohort and conducted from 2011 to 2016 in three hospitals in the city of Porto Alegre (Brazil). Sociodemographic, prenatal (maternal gestational weight gain, among others) and perinatal (birth weight) data from 372 mother-child pairs were analyzed. Pearson's correlation was used to verify the relationship between gestational weight gain and birth weight. Multivariate regression was performed to determine the association between maternal weight gain in the presence of various health conditions and birth weight. RESULTS: There were no statistical differences in gestational weight gain in different health condition groups (p=0.092). However, women in the Hypertension group had a tendency to gain more weight (p = 0.097). Mothers in the intrauterine growth restriction group gained less weight. A positive correlation was observed between gestational weight gain and birth weight in the Tobacco (p = 0.003) and Control (p =0.001) groups, which remained positive only in the Control group after adjustment (p<0.004). CONCLUSIONS: Only weight gain in pregnant women without clinical changes during pregnancy seemed to influence the weight of the newborn. It is assumed that other factors, such as metabolic or nutritional, present among smoking, diabetes mellitus, hypertensive or with intrauterine growth restriction pregnant women have different modulations on the intrauterine environment and, therefore, exert a different influence on fetal growth.

scholarly journals Differences of the Insulin and Brain Derived Neurotrophic Factor Between Normal Born Weight Baby and Baby With Intrauterine Growth Restriction

2018 ◽  
Vol 3 (2) ◽  
pp. 103
Author(s):  
Tiyan Febriyani lestari ◽  
Yusrawati Yusrawati ◽  
Arni Amir
Keyword(s):  
Birth Weight ◽  
Fetal Growth ◽  
Intrauterine Growth Restriction ◽  
Growth Restriction ◽  
Observational Research ◽  
Enzyme Linked Immunosorbent Assay ◽  
Normal Birth Weight ◽  
Insulin Levels ◽  
Intrauterine Growth ◽  
Normal Birth

Background: Intrauterine Growth Restriction (IUGR), is a condition in which the fetal growth rate is less than 10 percentiles. Fetal growth is affected by maternal health and nutrition, the hormone insulin and placenta. Placental development is influenced by the Brain Derived Neurotropic Factor (BDNF). Insulin deficiency and BDNF can interfere with fetal development.Method: This study used an observational research method, with a comparative cross sectional design. The place of research was conducted at Bayangkara Hospital, Dr. Rasidin, TK.III Reksodiwiryo Hospital, and Biomedical Laboratory, Faculty of Medicine, Andalas University. Research time starts from October 2017 to January 2018. The sample of this study was 25 normal babies and 25 babies with IUGR. Insulin levels and BDNF were examined by enzyme-linked immunosorbent assay (ELISA). Test the normality of the data using the Kolmogorov-Smirnov test. Statistical analysis using independent t test.Results: Insulin levels of 13.2 ± 1.7 mIU / L in infants with normal birth weight and 8.5 ± 1.7 mIU / L in infants born with IUGR (p = 0.000) and BDNF levels 1.5 ± 0.2 ng / ml for infants with normal birth weight and 1.4 ± 0.3 ng / ml in infants born with IUGR (p = 0.008).Conclusion Insulin levels and BDNF levels of normal birth weight babies are higher than babies born with IUGR.

scholarly journals Physical activity during pregnancy and fetal outcomes: a case-control study

2010 ◽  
Vol 44 (1) ◽  
pp. 90-101 ◽  
Author(s):  
Monica Yuri Takito ◽  
Maria Helena D'Aquino Benício
Keyword(s):  
Physical Activity ◽  
Birth Weight ◽  
Preterm Birth ◽  
Low Birth Weight ◽  
Intrauterine Growth Restriction ◽  
Case Control Study ◽  
Growth Restriction ◽  
P Value ◽  
Intrauterine Growth ◽  
Control Study

OBJECTIVE: To investigate the relationship between physical activity during the second trimester pregnancy and low birth weight, preterm birth, and intrauterine growth restriction. METHODS: Case-control study including 273 low birth weight newborns and 546 controls carried out in the city of São Paulo, Southeastern Brazil, in 2005. Low birth weight cases were grouped into two subsamples: preterm birth (n=117) and intrauterine growth restriction (n=134), with their related controls. Information was collected by means of interviews with mothers shortly after birth and transcription of medical records. Data were analyzed using conditional multiple and hierarchical logistic regression. RESULTS: Light physical activity for over 7 hours per day was shown to be protective against low birth weight (adjusted OR=0.61; 95% CI 0.39-0.94) with a dose-response relationship (p-value for trend=0.026). A similar trend was found for intrauterine growth restriction (adjusted OR=0.51; 95% CI 0.26-0.97). Homemaking activities were associated as a protective factor for both low birth weight and preterm birth (p-value for trend=0.013 and 0.035, respectively). Leisure-time walking was found to be protective against preterm birth. CONCLUSIONS: Mild physical activity during the second trimester of pregnancy such as walking has an independent protective effect on low birth weight, preterm birth, and intrauterine growth restriction.

Civil unrest linked to intrauterine growth restriction in western Kenya

2014 ◽  
Vol 5 (5) ◽  
pp. 370-373
Author(s):  
E. Dybjer ◽  
J. Linvik ◽  
P. M. Nilsson
Keyword(s):  
Birth Weight ◽  
Intrauterine Growth Restriction ◽  
Epidemiological Data ◽  
Control Area ◽  
Growth Restriction ◽  
Western Kenya ◽  
Civil Unrest ◽  
Intrauterine Growth ◽  
Control Hospital ◽  
Mount Elgon

Risk factors associated with intrauterine growth restriction (IUGR) have previously been identified, but few studies have described the relationship between IUGR and maternal stress caused by exposure to civil unrest. Here, we investigate this relationship during the Mount Elgon crisis in western Kenya between 2006 and 2008, following a period of violence. Birth weight data were compared between three hospitals in an exposed area, Mount Elgon (n=570), and one hospital in a control area, Kimilili (n=530). In a sub-analysis, the most stress exposed hospital, Bungoma West (n=211), was compared with the control hospital in Kimilili. Adjustments were made for offspring sex, gestational age and parity. The difference in mean birth weight between the most stress-exposed hospital (Bungoma West) and the control hospital (Kimilili) was 91 g after full adjustment (P=0.041). In conclusion, epidemiological data suggest a significant relationship between exposure to civil unrest and IUGR causing lower birth weight.

scholarly journals The Presence of the d3-Growth Hormone Receptor Polymorphism Is Negatively Associated with Fetal Growth but Positively Associated with Postnatal Growth in Healthy Subjects

2007 ◽  
Vol 92 (7) ◽  
pp. 2758-2763 ◽  
Author(s):  
Rikke Beck Jensen ◽  
Signe Vielwerth ◽  
Torben Larsen ◽  
Gorm Greisen ◽  
Henrik Leffers ◽  
...  
Keyword(s):  
Birth Weight ◽  
Fetal Growth ◽  
Gestational Age ◽  
Growth Velocity ◽  
Intrauterine Growth Restriction ◽  
Postnatal Growth ◽  
Third Trimester ◽  
Intrauterine Growth ◽  
Prenatal Growth ◽  
Ghr Gene

Abstract Context: A common polymorphism in the GH receptor (GHR) gene has been linked to increased growth response in GH-treated patients. No former study has focused on the association to prenatal growth. Objective: The aim of the study was to evaluate the association between the d3-GHR isoforms and spontaneous pre- and postnatal growth. Design: A prospective study was conducted on third-trimester fetal growth velocity (FGV), birth weight, birth length, and postnatal growth. Setting: The study was conducted at Copenhagen University Hospital. Participants: A total of 115 healthy adolescents were divided into those born small for gestational age (SGA) and appropriate for gestational age with or without intrauterine growth restriction. Main Outcome Measures: FGV was measured by serial ultrasonography, birth weight, birth length, and adolescent height. Isoforms of the d3-GHR gene (fl/fl, d3/fl, and d3/d3) were determined. Results: The prevalence of the d3-GHR isoforms was 50% but differed among the groups (P = 0.006), with a high prevalence (88%) in the group born SGA with verified intrauterine growth restriction. The d3-GRH allele were associated with decreased third-trimester FGV (P = 0.05) in SGA subjects. In the entire cohort, carriers of the d3-GHR allele had a significantly increased height (−0.10 vs. 0.34 sd score; P = 0.017) and change in height from birth to adolescence compared with carriers of the full-length GHR allele (0.57 vs. −0.02 sd score; P = 0.005). Conclusions: This study showed an increased spontaneous postnatal growth velocity in the carriers of the d3-GHR allele. Interestingly, we found the opposite effect on prenatal growth in the SGA group, with a decreased FGV in carriers of the d3-GHR allele.

Abstract 15515: Sexual Dimorphism in Cardiac Response to Intrauterine Growth Restriction (IUGR)

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Alina Maloyan ◽  
Sribalasubashini Muralimanoharan ◽  
Mark Nijland ◽  
Peter W Nathanielsz
Keyword(s):  
Birth Weight ◽  
Sexual Dimorphism ◽  
Mirna Expression ◽  
Intrauterine Growth Restriction ◽  
Left Ventricular ◽  
Growth Restriction ◽  
Cardiac Response ◽  
Heart Weight ◽  
Reverse Correlation ◽  
Intrauterine Growth

Background: Poor fetal nutrient availability predisposes to adult cardiovascular disease (CVD). We have developed a fetal baboon model of maternal undernutrition resulting in Intrauterine Growth Restriction (IUGR) in both male and female fetuses (Li, et al, J Endocrinol, 2013). MicroRNAs are small non-coding RNAs that regulate gene expression through mRNA degradation and translational repression. Hypothesis: We hypothesized that IUGR is accompanied by cardiac dysfunction and dysregulation of cardiac miRNAs. Methods: Six control pregnant baboons ate ad libitum, and six nutrient restricted pregnant baboons ate a globally reduced diet (70% of control feed) from 0.16 gestation (G) through pregnancy resulting in fetal IUGR compared to controls (p<0.05). No differences in heart weight were observed. Fetuses (3 males and 3 females per group) were euthanized at C-section at 0.9G. Cardiac sections were studied for morphological changes and fibrosis using H&E and Masson’s trichrome staining respectively. Total left ventricular RNA was isolated and miRNA array was performed. Results: While no differences in myofiber orientation were observed, IUGR male but not female fetuses showed a reverse correlation between birth weight and accumulation of fibrotic tissue in the heart (r=-0.831, p=0.01). We next investigated the expression of the extracellular matrix proteins thrombospondin-1 (TSP-1) and connective tissue growth factor (CTGF). A reverse correlation between birth weight and cardiac TSP-1 levels (r=-0.77, p=0.03) was found in male but not female fetuses. No changes in CTGF were observed. Sexual dimorphism was observed in fetal cardiac miRNA expression within both IUGR and control groups. In male IUGR group, the increase in levels of TSP-1 was associated with more than 50% reduction in expression of its targeting miRNA-19a, reduction in which has been implicated in CVD. Other CVD-related and differentially expressed miRNAs in male IUGR included miRNA-23b, 27b, 99b, 143, 181a, and 378-3p. Summary: IUGR resulting from decreased maternal nutrition is associated with sexual dimorphism in cardiac structure and miRNA expression. If the changes observed in male IUGR fetuses persists postnatally they may program offspring for higher CVD risk later in life.

scholarly journals Intrauterine Growth Restriction: Antenatal and Postnatal Aspects

2016 ◽  
Vol 10 ◽  
pp. CMPed.S40070 ◽  
Author(s):  
Deepak Sharma ◽  
Sweta Shastri ◽  
Pradeep Sharma
Keyword(s):  
Birth Weight ◽  
Gestational Age ◽  
Intrauterine Growth Restriction ◽  
Perinatal Asphyxia ◽  
Neonatal Morbidity ◽  
Growth Restriction ◽  
Growth Potential ◽  
Intrauterine Growth ◽  
Health And Disease ◽  
Neonatal Problems

Intrauterine growth restriction (IUGR), a condition that occurs due to various reasons, is an important cause of fetal and neonatal morbidity and mortality. It has been defined as a rate of fetal growth that is less than normal in light of the growth potential of that specific infant. Usually, IUGR and small for gestational age (SGA) are used interchangeably in literature, even though there exist minute differences between them. SGA has been defined as having birth weight less than two standard deviations below the mean or less than the 10th percentile of a population-specific birth weight for specific gestational age. These infants have many acute neonatal problems that include perinatal asphyxia, hypothermia, hypoglycemia, and polycythemia. The likely long-term complications that are prone to develop when IUGR infants grow up includes growth retardation, major and subtle neurodevelopmental handicaps, and developmental origin of health and disease. In this review, we have covered various antenatal and postnatal aspects of IUGR.

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