Mitochondrial inefficiency in infants born to overweight African-American mothers.
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ABSTRACT:
SUBMITTER: Abraham M
PROVIDER: S-EPMC6054813 | biostudies-literature | 2018 Jul
REPOSITORIES: biostudies-literature
Publications
Mitochondrial inefficiency in infants born to overweight African-American mothers.
Abraham Manjusha M Collins Christina A CA Flewelling Scott S Camazine Maraya M Cahill Alison A Cade W Todd WT Duncan Jennifer G JG
International journal of obesity (2005) 20180303 7
<h4>Background</h4>Currently 20-35% of pregnant women are obese, posing a major health risk for mother and fetus. It is postulated that an abnormal maternal-fetal nutritional environment leads to adverse metabolic programming, resulting in altered substrate metabolism in the offspring and predisposing to risks of obesity and diabetes later in life. Data indicate that oocytes from overweight animals have abnormal mitochondria. We hypothesized that maternal obesity is associated with altered mitoc ...[more]
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Project description:BackgroundMaternal asthma is associated with serious pregnancy complications, but newborn morbidity is understudied.ObjectiveWe wanted to determine whether infants of asthmatic mothers have more neonatal complications.MethodsThe Consortium on Safe Labor (2002-2008), a retrospective cohort, included 223,512 singleton deliveries at ≥ 23 weeks' gestation. Newborns of mothers with asthma (n = 17,044) were compared with newborns of women without asthma by using logistic regression models with generalized estimating equations to calculate adjusted odds ratios (ORs) and 95% CIs. Electronic medical record data included gestational week at delivery, birth weight, resuscitation, neonatal intensive care unit (NICU) admission, NICU length of stay, hyperbilirubinemia, respiratory distress syndrome, apnea, sepsis, anemia, transient tachypnea of the newborn, infective pneumonia, asphyxia, intracerebral hemorrhage, seizure, cardiomyopathy, periventricular or intraventricular hemorrhage, necrotizing enterocolitis, aspiration, retinopathy of prematurity, and perinatal mortality.ResultsPreterm delivery was associated with maternal asthma for each week after 33 completed weeks of gestation and not earlier. Maternal asthma also increased the adjusted odds of small for gestational age (OR = 1.10; 95% CI, 1.05-1.16), NICU admission (OR = 1.12; 95% CI, 1.07-1.17), hyperbilirubinemia (OR = 1.09; 95% CI, 1.04-1.14), respiratory distress syndrome (OR = 1.09; 95% CI, 1.01-1.19), transient tachypnea of the newborn (OR = 1.10; 95% CI, 1.02-1.19), and asphyxia (OR = 1.34; 95% CI, 1.03-1.75). Findings persisted for term infants (≥ 37 weeks) who had additional increased odds of intracerebral hemorrhage (OR = 1.84; 95% CI, 1.11-3.03) and anemia (OR = 1.30; 95% CI, 1.04-1.62).ConclusionsMaternal asthma was associated with prematurity and small for gestational age. Adverse neonatal outcomes, including respiratory complications, hyperbilirubinemia, and NICU admission, were increased in association with maternal asthma even among term deliveries.
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Project description:We are investigating the transcriptional response of newborns in response to prenatal arsenic exposure We used microarrays to detail the global programme of gene expression response due to prenatal arsenic exposure Keywords: dose (arsenic)
2007-11-01 | GSE7967 | GEO
Project description:Little is known about in-hospital morbidities and neurodevelopmental outcomes among extremely preterm infants born to women with insulin-dependent diabetes mellitus (IDDM). We examined risks of mortality, in-hospital morbidities, and neurodevelopmental outcomes at 18 to 22 months' corrected age between extremely preterm infants of women with insulin use before pregnancy (IBP), with insulin use started during pregnancy (IDP), and without IDDM. Infants 22 to 28 weeks' gestation born or cared for at a Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network center (2006-2011) were studied. Regression models compared the association between maternal IDDM and timing of insulin use and the outcomes of the 3 groups. Of 10 781 infants, 536 (5%) were born to women with IDDM; 58% had IBP, and 36% had IDP. Infants of mothers with IBP had higher risks of necrotizing enterocolitis (adjusted relative risk [RR] = 1.55 [95% confidence interval (CI) 1.17-2.05]) and late-onset sepsis (adjusted RR = 1.26 [95% CI 1.07-1.48]) than infants of mothers without IDDM. There was some indication of higher in-hospital mortality risk among infants of mothers with IBP compared with those with IDP (adjusted RR = 1.33 [95% CI 1.00-1.79]). Among survivors evaluated at 18 to 22 months' corrected age, average head circumference z score was lower for infants of mothers with IBP compared with those without IDDM, but there were no differences in risk of neurodevelopmental impairment. In this cohort of extremely preterm infants, infants of mothers with IBP had higher risks of necrotizing enterocolitis, sepsis, and small head circumference.
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Project description:HIV-exposed uninfected infants are an increasing population. Past analyses have often categorized these infants as uninfected leading to inaccurate conclusions. We present a HIV exposure, rather than infection, based reanalysis of treatment failure among children with pneumonia to show that failure odds among HIV-exposed uninfected infants are intermediate between their unexposed and infected counterparts. Additional prospective studies aimed at better understanding this population are needed.
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Project description:BackgroundOverweight, obesity, and gestational diabetes (GD) during pregnancy may negatively affect neurodevelopment in the offspring. However, the mechanisms are unclear and objective measures of neurodevelopment in infancy are scarce. We hypothesized that these maternal metabolic pathologies impair cortical visual evoked potentials (cVEPs), a proxy for visual and neuronal maturity.DesignThe PREOBE study included 331 pregnant women stratified into four groups; normal weight (controls), overweight, obesity, and GD (the latter including mothers with normal weight, overweight and obesity). In a subsample of the offspring at 3 months (n = 157) and at 18 months (n = 136), we assessed the latencies and amplitudes of the P100 wave from cVEPs and calculated visual acuity.ResultsAt 3 months of age, visual acuity was significantly poorer in offspring born to GD mothers. At 18 months of age, there were no differences in visual acuity but infants born to GD mothers had significantly longer latencies of cVEPs when measured at 15', and 30' of arc. The group differences at 30' remained significant after confounder adjustment (mean [SD] 121.0 [16.0] vs. 112.6 [7.6] ms in controls, p = 0.007) and the most prolonged latencies were observed in offspring to GD mothers with concurrent overweight (128.9 [26.9] ms, p = 0.002) and obesity (118.5 [5.1] ms, p = 0.020).ConclusionsInfants born to mothers with GD, particularly those with concurrent overweight or obesity, have prolonged latencies of visual evoked potentials at 18 months of age, suggesting that this maternal metabolic profile have a long lasting, non-optimal, effect on infants´ brain development.
| S-EPMC6135499 | biostudies-literature
Project description:The long-term health outcome of prenatal exposure to arsenic has been associated with increased mortality in human populations. In this study, the extent to which maternal arsenic exposure impacts gene expression in the newborn was addressed. We monitored gene expression profiles in a population of newborns whose mothers experienced varying levels of arsenic exposure during pregnancy. Through the application of machine learning-based two-class prediction algorithms, we identified expression signatures from babies born to arsenic-unexposed and -exposed mothers that were highly predictive of prenatal arsenic exposure in a subsequent test population. Furthermore, 11 transcripts were identified that captured the maximal predictive capacity to classify prenatal arsenic exposure. Network analysis of the arsenic-modulated transcripts identified the activation of extensive molecular networks that are indicative of stress, inflammation, metal exposure, and apoptosis in the newborn. Exposure to arsenic is an important health hazard both in the United States and around the world, and is associated with increased risk for several types of cancer and other chronic diseases. These studies clearly demonstrate the robust impact of a mother's arsenic consumption on fetal gene expression as evidenced by transcript levels in newborn cord blood.
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Project description:ObjectiveTo assess the effect of adolescent birth on the health and wellness of these infants within their first year of life.MethodsOur study focused on 2011 Medicaid births nationwide. The study group (infants born to adolescents, aged 10 to 19 at time of birth) was matched with infants born to adults (aged 20 to 44 at time of birth), based on demographics. Statistical tests (proportion test and Poisson test) were used to compare the outcomes of these two groups to determine if differences were significant.ResultsThe outcomes assessed were: low birth weight (LBW), substance exposure, foster care, health status, infant mortality, emergency department (ED) visits, and wellness visits. Of the 68,562 infant pairs included in the study, we found statistically significant higher rates of LBW (P ≤ 0·005), infant mortality (P = 0·05), and ED visits (P ≤ 0·005) for infants born to adolescents at the 95% confidence interval. The rate of wellness visits for all infants was well below the recommended amount. Additional differences were found at the race/ethnicity and urbanicity levels.Conclusion for practiceInfants born to adolescents had a higher rate of ED visits within the first year of life, however, the increased rates of LBW and mortality for the Medicaid population are not as significant as previous national studies suggest. Analysis of outcomes across stratification helped identify vulnerable populations (i.e. urban infants). Public health programs are urged to examine ED visits in infants born to adolescents among the Medicaid population. Improved health education or phone-based resources could help reduce unnecessary visits and reduce cost.
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Project description:The prevalence of metabolic syndrome comprising obesity, type 2 diabetes mellitus and cardiovascular disease has been on the rise world-wide in recent years. As non-communicable diseases such as type 2 diabetes mellitus have their roots in prenatal development and conditions such as maternal gestational diabetes (GDM), we aimed to test this hypothesis in primary cells derived from the offspring of GDM mothers compared to control subjects. Methods We have assessed primary umbilical cord derived cells such as human vascular endothelial cells (HUVECs) and Wharton’s jelly derived mesenchymal stem cells (WJMSCs) from both, the offspring of GDM and healthy mothers. We have compared the primary isolates in cell based assays measuring proliferation, mitochondrial oxygen consumption, as well as the ability to support blood vessel growth. We conducted gene expression microarray studies with subsequent pathway analysis and candidate gene validation. Results We observed striking differences between the two groups such as lower metabolic rates and impairment of tube formation in cells with GDM background. HUVECs from subjects with maternal GDM have lower expression of the anti-apoptotic protein BCL-Xl suggesting compromised angiogenic capabilities. Comparative gene expression analysis revealed blood vessel formation as a major pathway enriched in the GDM derived HUVECs with the surface marker CD44 as a significant gene under-expressed in the GDM group. Functional validation of CD44 revealed that it regulates tube formation in HUVECs thereby providing new insights into a novel pathway imprinted in primary umbilical cord derived cells from GDM offspring. Conclusions/interpretation Our data demonstrate that primary cells isolated from the umbilical cord of offspring born to GDM mothers maintain metabolic and molecular imprints of maternal hyperglycemia, which occurred during prenatal development reflecting an enhanced risk for cardiovascular disease later in life.
2016-09-24 | GSE87295 | GEO
Project description:ObjectiveUnderstanding body size perceptions and discrepancies among African American women may have implications for effective weight-loss interventions. The purpose of this study is to examine body size perceptions of economically disadvantaged, overweight and obese African American women.DesignCross-sectional using baseline data from a randomized controlled trial.Setting18 census tracts in a central South Carolina city where ≥ 25% of residents were below poverty income.Participants147 economically disadvantaged, overweight and obese African American women.Main outcome measuresUsing Pulvers' figure rating scale, participants chose the figure: 1) closest to their current figure; 2) they would be satisfied with; and 3) with a body weight that would be a health problem for the average person. Mean body mass indices corresponding to each figure were compared with those in a large sample of White women.ResultsMost participants wanted to be smaller (mean=2.6 figures smaller) than their current size. A majority (67%) chose the largest figure as representing a body size that could lead to a health problem, and most (60%) chose a current figure smaller than the figure they believed would be associated with health problems. The mean body mass index for women selecting any given figure as their current size was significantly larger (5.2-10.8 kg/m(2) larger, P<.0001) than those established in the sample of White women.ConclusionsAlthough women desired a smaller body size, there nonetheless were misperceptions of body size and the associated health consequences. Body size misperceptions and/or satisfaction may pose barriers for effective weight-loss.
| S-EPMC4671444 | biostudies-literature