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Fetal programming

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https://www.readbyqxmd.com/read/29147574/generational-comparisons-f1-versus-f3-of-vinclozolin-induced-epigenetic-transgenerational-inheritance-of-sperm-differential-dna-methylation-regions-epimutations-using-medip-seq
#1
Daniel Beck, Ingrid Sadler-Riggleman, Michael K Skinner
Environmentally induced epigenetic transgenerational inheritance of disease and phenotypic variation has been shown to involve DNA methylation alterations in the germline (e.g. sperm). These differential DNA methylation regions (DMRs) are termed epimutations and in part transmit the transgenerational phenotypes. The agricultural fungicide vinclozolin exposure of a gestating female rat has previously been shown to promote transgenerational disease and epimutations in F3 generation (great-grand-offspring) animals...
July 2017: Environmental Epigenetics
https://www.readbyqxmd.com/read/29145928/note-of-clarification-potential-risks-to-offspring-of-intrauterine-exposure-to-maternal-age-related-obstetric-complications
#2
Juan J Tarín, Miguel A García-Pérez, Antonio Cano
Several hypotheses have been proposed to explain the negative effects of delayed motherhood on an offspring's morbidity later in life. However, these hypotheses are not supported by clinical and epidemiological evidence. Because advanced maternal age is associated with increased risk of obstetric complications, the aim of the present study was to ascertain whether the negative effects on offspring of intrauterine exposure to maternal age-related obstetric complications may explain the reported negative effects of delayed motherhood on offspring...
August 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29145358/progress-in-rubella-and-congenital-rubella-syndrome-control-and-elimination-worldwide-2000-2016
#3
Gavin B Grant, Susan E Reef, Minal Patel, Jennifer K Knapp, Alya Dabbagh
Although rubella virus infection usually causes a mild fever and rash illness in children and adults, infection during pregnancy, especially during the first trimester, can result in miscarriage, fetal death, stillbirth, or infants with a constellation of congenital malformations known as congenital rubella syndrome (CRS) (1). Rubella is a leading vaccine-preventable cause of birth defects. Preventing these adverse pregnancy outcomes is the focus of rubella vaccination programs. In 2011, the World Health Organization (WHO) updated guidance on the preferred strategy for introduction of rubella-containing vaccine (RCV) into national immunization schedules and recommended an initial vaccination campaign, usually targeting children aged 9 months-14 years (1)...
November 17, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29137478/effects-of-increased-myocardial-tissue-concentration-of-myristic-palmitic-and-palmitoleic-acids-on-the-course-of-cardiac-atrophy-of-the-failing-heart-unloaded-by-heterotopic-transplantation
#4
M Pokorný, I Mrázová, J Malý, J Pirk, I Netuka, Z Vaňourková, Š DoleŽelová, L Červenková, H Maxová, V Melenovský, J Šochman, J Sadowski, L Červenka
The present experiments were performed to evaluate if increased heart tissue concentration of fatty acids, specifically myristic, palmitic and palmitoleic acids that are believed to promote physiological heart growth, can attenuate the progression of unloading-induced cardiac atrophy in rats with healthy and failing hearts. Heterotopic abdominal heart transplantation (HT(x)) was used as a model for heart unloading. Cardiac atrophy was assessed from the ratio of the native- to-transplanted heart weight (HW)...
November 10, 2017: Physiological Research
https://www.readbyqxmd.com/read/29132937/arsenic-exposure-during-embryonic-development-alters-the-expression-of-the-long-noncoding-rna-growth-arrest-specific-5-gas5-in-a-sex-dependent-manner
#5
Kevin K Caldwell, Alexander Hafez, Elizabeth Solomon, Matthew Cunningham, Andrea M Allan
Our previous studies suggest that prenatal arsenic exposure (50ppb) modifies epigenetic control of the programming of the glucocorticoid receptor (GR) signaling system in the developing mouse brain. These deficits may lead to long-lasting consequences, including deficits in learning and memory, increased depressive-like behaviors, and an altered set-point of GR feedback throughout life. To understand the arsenic-induced changes within the GR system, we assessed the impact of in utero arsenic exposure on the levels of the GR and growth arrest-specific-5 (Gas5), a noncoding RNA, across a key gestational period for GR programming (gestational days, GD 14-18) in mice...
November 10, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/29128989/infant-mortality-lessons-learned-from-a-fetal-and-infant-mortality-review-program
#6
Haywood L Brown, Mark Smith, Yvonne Beasley, Teri Conard, Anne Lise Musselman, Virginia A Caine
Objective To review fetal and infant deaths from women enrolled in Indianapolis Healthy Start using the National Fetal and Infant Mortality Review (FIMR) methods to provide strategies for prevention. METHODS: Marion County Public Health Department (MCPHD) FIMR staff identified and reviewed 22 fetal and infant deaths to Indianapolis Healthy Start program participants between 2005 and 2012. Trained FIMR nurses completed 13 of 20 maternal interviews and compiled case summaries of all deaths from the MCPHD FIMR database...
November 11, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/29128491/screening-for-fetal-chromosomal-and-subchromosomal-disorders
#7
REVIEW
Sarah Harris, Dallas Reed, Neeta L Vora
Screening for fetal chromosomal disorders has evolved greatly over the last four decades. Initially, only maternal age-related risks of aneuploidy were provided to patients. This was followed by screening with maternal serum analytes and ultrasound markers, followed by the introduction and rapid uptake of maternal plasma cell-free DNA-based screening. Studies continue to demonstrate that cfDNA screening for common aneuploidies has impressive detection rates with low false-positive rates. The technology continues to push the boundaries of prenatal screening as it is now possible to screen for less common aneuploidies and subchromosomal disorders...
November 8, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29124699/asthma-and-allergy-epidemic-and-the-role-of-vitamin-d-deficiency
#8
Konstantinos Douros, Barbara Boutopoulou, Sotirios Fouzas, Ioanna Loukou
The increase in asthma and allergies prevalence that has been recorded in many countries during the last decades, and the reemergence of vitamin D (VD) deficiency in many populations worldwide, renders fairly plausible the assumption of an underlying association between these two conditions and justifies the research effort invented in this issue. Indeed, there is growing body of evidence from epidemiological, laboratory, and clinical studies, suggesting that such an association does exist. The hypothesis of low levels of VD leading to compromised fetal programming and impairment of various immune functions involved in asthma and allergic disorders, stands as the most credible explanation of this presumed association...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29123519/two-distinct-myeloid-subsets-at-the-term-human-fetal-maternal-interface
#9
Maria Laura Costa, Michelle L Robinette, Mattia Bugatti, Mark S Longtine, Bryanne N Colvin, Erica Lantelme, William Vermi, Marco Colonna, D Michael Nelson, Marina Cella
During pregnancy, immune cells infiltrate the placenta at different stages of fetal development. NK cells and macrophages are the most predominant cell types. These immune cells play pleiotropic roles, as they control spiral artery remodeling to ensure appropriate blood supply and maintain long-term tolerance to a true allograft; yet, they must be able to mount appropriate immune defenses to pathogens that may threaten the fetus. Whether the same cell type accomplishes all these tasks or if there are dedicated subsets remains controversial...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29123472/taurine-as-an-essential-neuromodulator-during-perinatal-cortical-development
#10
REVIEW
Werner Kilb, Atsuo Fukuda
A variety of experimental studies demonstrated that neurotransmitters are an important factor for the development of the central nervous system, affecting neurodevelopmental events like neurogenesis, neuronal migration, programmed cell death, and differentiation. While the role of the classical neurotransmitters glutamate and gamma-aminobutyric acid (GABA) on neuronal development is well established, the aminosulfonic acid taurine has also been considered as possible neuromodulator during early neuronal development...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29123159/zinc-is-a-critical-regulator-of-placental-morphogenesis-and-maternal-hemodynamics-during-pregnancy-in-mice
#11
Rebecca L Wilson, Shalem Y Leemaqz, Zona Goh, Dale McAninch, Tanja Jankovic-Karasoulos, Gabriela E Leghi, Jessica A Phillips, Katrina Mirabito Colafella, Cuong Tran, Sean O'Leary, Sam Buckberry, Stephen Pederson, Sarah A Robertson, Tina Bianco-Miotto, Claire T Roberts
Zinc is an essential micronutrient in pregnancy and zinc deficiency impairs fetal growth. We used a mouse model of moderate zinc deficiency to investigate the physiological mechanisms by which zinc is important to placental morphogenesis and the maternal blood pressure changes during pregnancy. A 26% reduction in circulating zinc (P = 0.005) was exhibited in mice fed a moderately zinc-deficient diet. Zinc deficiency in pregnancy resulted in an 8% reduction in both near term fetal and placental weights (both P < 0...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29121112/fetal-overgrowth-in-women-with-type-1-and-type-2-diabetes-mellitus
#12
Linnea Ladfors, Nael Shaat, Nana Wiberg, Anastasia Katasarou, Kerstin Berntorp, Karl Kristensen
OBJECTIVES: Despite improved glycemic control, the rate of large-for-gestational-age (LGA) infants remains high in pregnancies complicated by diabetes mellitus type 1 (T1DM) and type 2 (T2DM). Poor glycemic control, obesity, and excessive gestational weight gain are the main risk factors. The aim of this study was to determine the relative contribution of these risk factors for LGA in women with T1DM and T2DM, after controlling for important confounders such as age, smoking, and parity...
2017: PloS One
https://www.readbyqxmd.com/read/29113299/microrna-210-suppresses-glucocorticoid-receptor-expression-in-response-to-hypoxia-in-fetal-rat-cardiomyocytes
#13
Shannalee R Martinez, Qingyi Ma, Chiranjib Dasgupta, Xianmei Meng, Lubo Zhang
Hypoxia is a common intrauterine stressor, often resulting in intrauterine growth restriction and increased risk for cardiovascular disease later in life. The aim of this work was to test the hypothesis that microRNA-210 (miR-210) mediates the detrimental suppression of glucocorticoid receptor (GR) in response to hypoxia in fetal rat cardiomyocytes. Cardiomyocytes isolated from gestational day 21 Sprague Dawley fetal rats showed increased miR-210 levels and reduced GR abundance after exposure to ex vivo hypoxia (1% O2)...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29112458/review-detrimental-effects-of-alcohol-exposure-around-conception-putative-mechanisms
#14
Jacinta I Kalisch-Smith, Karen M Moritz
In western countries, alcohol consumption is widespread in women of reproductive age, and in binge quantities. These countries also continue to have high incidences of unplanned pregnancies, with women often reported to cease drinking after discovering their pregnancy. This suggests the early embryo may be highly exposed to the detrimental effects of alcohol during this periconceptional period. The periconception and pre-implantation windows which includes maturation of the oocyte, fertilisation and morphogenesis of the pre-implantation embryo, are particularly sensitive times of development...
November 7, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/29111458/low-functional-programming-of-the-creb-bdnf-trkb-pathway-mediates-cognitive-impairment-in-male-offspring-after-prenatal-dexamethasone-exposure
#15
Wanting Dong, Dan Xu, Zewen Hu, Xia He, Zijing Guo, Zhexiao Jiao, Ying Yu, Hui Wang
Adverse intrauterine environments can increase susceptibility to neuropsychiatric diseases that are related to cognitive impairment. In this study, we observed the cognitive impairment of male offspring rats after prenatal dexamethasone exposure (PDE) and explored the associated intrauterine programming mechanism. Pregnant Wistar rats were subcutaneously injected with 0.2mg/kg.d dexamethasone from gestational day 9 (GD9) to GD20. A cohort of the pregnant rat group was sacrificed on GD20, and the male fetal rats were collected...
October 27, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/29108634/maternal-growth-restriction-and-stress-exposure-in-rats-differentially-alters-expression-of-components-of-the-placental-glucocorticoid-barrier-and-nutrient-transporters
#16
Jessica F Briffa, Sogand S Hosseini, Melanie Tran, Karen M Moritz, James S M Cuffe, Mary E Wlodek
The placenta plays a major role in the development of fetal growth restriction, which affects 10% of pregnancies and contributes to chronic adult disease risk. We have reported that female rats born small develop cardiometabolic dysfunction only during pregnancy. The physiological tests performed during pregnancy induced a maternal stress response as indicated by increased maternal corticosterone concentrations. This stress effected placental growth compared to females who were unhandled during pregnancy. Maternal stress and growth restriction independently program F2 offspring metabolic dysfunction...
November 2017: Placenta
https://www.readbyqxmd.com/read/29105382/hypoxia-from-placental-development-to-fetal-programming
#17
REVIEW
Lais Fajersztajn, Mariana Matera Veras
Hypoxia may influence normal and different pathological processes. Low oxygenation activates a variety of responses, many of them regulated by hypoxia-inducible factor 1 complex, which is mostly involved in cellular control of O2 consumption and delivery, inhibition of growth and development, and promotion of anaerobic metabolism. Hypoxia plays a significant physiological role in fetal development; it is involved in different embryonic processes, for example, placentation, angiogenesis, and hematopoiesis. More recently, fetal hypoxia has been associated directly or indirectly with fetal programming of heart, brain, and kidney function and metabolism in adulthood...
October 16, 2017: Birth defects research
https://www.readbyqxmd.com/read/29104164/novel-polymerase-spiral-reaction-psr-for-rapid-visual-detection-of-bovine-herpesvirus-1-genomic-dna-from-aborted-bovine-fetus-and-semen
#18
Javed Ahmed Malla, Soumendu Chakravarti, Vikas Gupta, Vishal Chander, Gaurav Kumar Sharma, Salauddin Qureshi, Adhiraj Mishra, Vivek Kumar Gupta, Sukdeb Nandi
Bovine herpesvirus-1 (BHV-1) is a major viral pathogen affecting bovines leading to various clinical manifestations and causes significant economic impediment in modern livestock production system. Rapid, accurate and sensitive detection of BHV-1 infection at frozen semen stations or at dairy herds remains a priority for control of BHV-1 spread to susceptible population. Polymerase Spiral Reaction (PSR), a novel addition in the gamut of isothermal techniques, has been successfully implemented in initial optimization for detection of BHV-1 genomic DNA and further validated in clinical samples...
November 8, 2017: Gene
https://www.readbyqxmd.com/read/29100355/role-of-dna-methylation-in-perinatal-nicotine-induced-development-of-heart-ischemia-sensitive-phenotype-in-rat-offspring
#19
Jun Ke, Nianguo Dong, Lei Wang, Yong Li, Chiranjib Dasgupta, Lubo Zhang, Daliao Xiao
Background and purpose: Maternal cigarette smoking increases the risk of cardiovascular disease in offspring. Recently, we have demonstrated that perinatal nicotine exposure alters heart development and increases heart susceptibility to ischemia/reperfusion (I/R) injury in rat offspring. The present study tested the hypothesis that DNA methylation plays a key role in the nicotine-induced development of heart ischemia-sensitive phenotype in offspring. Experimental approach: Nicotine was administered to pregnant rats via subcutaneous osmotic minipumps from gestational day 4 until postnatal day 10...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29099131/alterations-in-lipid-metabolism-due-to-a-protein-restricted-diet-in-rats-during-gestation-and-or-lactation
#20
T C Sosa-Larios, A A Miliar-Garcia, L A Reyes-Castro, S Morimoto, M E Jaramillo-Flores
Perinatal malnutrition affects not only fetal and neonatal growth, but also the health of offspring in adulthood, as suggested by the concept of metabolic programming. The impact of maternal protein malnutrition on the metabolism of offspring is demonstrated with the current data. One group of pregnant/lactating female rats was fed with an isocaloric diet having normal protein content. Three other groups were provided 50% of this protein level during pregnancy and/or lactation. The growth and metabolic state of the offspring was monitored...
November 3, 2017: Food & Function
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