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https://www.readbyqxmd.com/read/29141273/antidepressant-use-during-pregnancy-and-childhood-cancer-in-the-offspring
#1
Natalie C Momen, Trine Munk-Olsen, Jiong Li, Katja G Ingstrup, Jørn Olsen, Veerle Bergink, Xiaoqin Liu
PURPOSE: Antidepressant use during pregnancy has been increasing in recent years. We evaluated whether in utero exposure to antidepressants increased the risk of childhood cancer. METHODS: This population-based cohort study using national registers in Denmark comprised 915 128 liveborn singletons during 1998-2012. We categorised children into three mutually exclusive exposure groups according to maternal redemption of an antidepressant prescription from 2 years before pregnancy until delivery of the index child: Unexposed (N = 863 033), prior user (use before but not during pregnancy) (N = 30 607), and use during pregnancy (N = 21 488)...
November 15, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/29141232/foxp1-promotes-embryonic-neural-stem-cell-differentiation-by-repressing-jagged1-expression
#2
Luca Braccioli, Stephin J Vervoort, Youri Adolfs, Cobi J Heijnen, Onur Basak, R Jeroen Pasterkamp, Cora H Nijboer, Paul J Coffer
Mutations in FOXP1 have been linked to neurodevelopmental disorders including intellectual disability and autism; however, the underlying molecular mechanisms remain ill-defined. Here, we demonstrate with RNA and chromatin immunoprecipitation sequencing that FOXP1 directly regulates genes controlling neurogenesis. We show that FOXP1 is expressed in embryonic neural stem cells (NSCs), and modulation of FOXP1 expression affects both neuron and astrocyte differentiation. Using a murine model of cortical development, FOXP1-knockdown in utero was found to reduce NSC differentiation and migration during corticogenesis...
November 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29141221/chemotherapy-induced-depletion-of-oct4-positive-cancer-stem-cells-in-a-mouse-model-of-malignant-testicular-cancer
#3
Timothy M Pierpont, Amy M Lyndaker, Claire M Anderson, Qiming Jin, Elizabeth S Moore, Jamie L Roden, Alicia Braxton, Lina Bagepalli, Nandita Kataria, Hilary Zhaoxu Hu, Jason Garness, Matthew S Cook, Blanche Capel, Donald H Schlafer, Teresa Southard, Robert S Weiss
Testicular germ cell tumors (TGCTs) are among the most responsive solid cancers to conventional chemotherapy. To elucidate the underlying mechanisms, we developed a mouse TGCT model featuring germ cell-specific Kras activation and Pten inactivation. The resulting mice developed malignant, metastatic TGCTs composed of teratoma and embryonal carcinoma, the latter of which exhibited stem cell characteristics, including expression of the pluripotency factor OCT4. Consistent with epidemiological data linking human testicular cancer risk to in utero exposures, embryonic germ cells were susceptible to malignant transformation, whereas adult germ cells underwent apoptosis in response to the same oncogenic events...
November 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/29140440/cord-metabolic-profiles-in-obese-pregnant-women-insights-into-offspring-growth-and-body-composition
#4
Nashita Patel, Christian Hellmuth, Olaf Uhl, Keith Godfrey, Annette Briley, Paul Welsh, Dharmintra Pasupathy, Paul Seed, Berthold Koletzko, Lucilla Poston
Context: Offspring exposed in-utero to maternal obesity have an increased risk of later obesity; however, the underlying mechanisms remain unknown. Objective: To assess the effect of an antenatal lifestyle intervention in obese women on the offspring's cord blood metabolic profile, and examine associations of cord blood metabolic profile with maternal clinical characteristics and offspring anthropometry at birth and age 6 months. Design: Randomised controlled trial and cohort study...
November 13, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29138508/fetal-cardiac-cine-magnetic-resonance-imaging-in-utero
#5
Jerome Chaptinel, Jerome Yerly, Yvan Mivelaz, Milan Prsa, Leonor Alamo, Yvan Vial, Gregoire Berchier, Chantal Rohner, François Gudinchet, Matthias Stuber
Fast magnetic resonance imaging (MRI) led to the emergence of 'cine MRI' techniques, which enable the visualization of the beating heart and the assessment of cardiac morphology and dynamics. However, established cine MRI methods are not suitable for fetal heart imaging in utero, where anatomical structures are considerably smaller and recording an electrocardiogram signal for synchronizing MRI data acquisition is difficult. Here we present a framework to overcome these challenges. We use methods for image acquisition and reconstruction that robustly produce images with sufficient spatial and temporal resolution to detect the heart contractions of the fetus, enabling a retrospective gating of the images and thus the generation of images of the beating heart...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29138503/dihydrotestosterone-levels-at-birth-associate-positively-with-higher-proportions-of-circulating-immature-na%C3%A3-ve-cd5-b-cells-in-boys
#6
Anna-Carin Lundell, Inger Nordström, Kerstin Andersson, Anna Strömbeck, Claes Ohlsson, Åsa Tivesten, Anna Rudin
Boys present with higher proportions of immature/naïve CD5(+) B cells than girls up to 3 years of age. Boys also have higher fractions of regulatory T cells (Tregs) in early infancy, but the mechanisms for these sex-related differences are unknown. In the prospective FARMFLORA follow-up study of 23 boys and 25 girls, we investigated if these immunological differences remained at 8 years of age. We also examined if testosterone or dihydrotestosterone (DHT) levels at birth and at 8 years of age were associated with immune maturation...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29135270/-effectiveness-of-prenatal-ultrasound-in-fetal-and-neonatal-malformations-and-examination-of-difficulty-and-uncertainty-factors
#7
Fanni Rebeka Erős, Artúr Beke
INTRODUCTION AND AIM: The birth prevalence of congenital malformations is around 2-3%. The aim of this study was to examine the efficacy of ultrasound diagnostics in detecting congenital malformations. METHOD: We have processed the prenatal sonographic and postnatal clinical details of 1867 inborn abnormalities in 1200 fetuses over a 7-year period. RESULTS: The mean maternal age upon delivery/abortion was 29.96 ± 5.88 years. In 671 cases, the pregnancy concluded in delivery with a mean gestational age of 35...
November 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29133151/laparoscopic-management-of-a-rudimentary-uterine-horn
#8
Emilie Faller, Jean Jacques Baldauf, François Becmeur, Anne Lehn, Cherif Youssef Akladios, Lise Lecointre
STUDY OBJECTIVE: To demonstrate a technique of laparoscopic management of a rudimentary horn in a 12-year-old girl. DESIGN: A step-by-step explanation of the surgery using video (instructive video), approved the local institutional Review Board. SETTING: A university hospital, University Hospital of Strasbourg, France. PATIENT: A 12-year-old girl with a uterine rudimentary horn. INTERVENTION: We describe the case of a 12 years old girl who had no medical history...
November 10, 2017: Journal of Minimally Invasive Gynecology
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
#9
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/29132503/gyrification-of-the-cerebral-cortex-requires-fgf-signaling-in-the-mammalian-brain
#10
Naoyuki Matsumoto, Yohei Shinmyo, Yoshie Ichikawa, Hiroshi Kawasaki
Although it has been believed that the evolution of cortical folds was a milestone, allowing for an increase in the number of neurons in the cerebral cortex, the mechanisms underlying the formation of cortical folds are largely unknown. Here we show regional differences in the expression of fibroblast growth factor receptors (FGFRs) in the developing cerebral cortex of ferrets even before cortical folds are formed. By taking the advantage of our in utero electroporation technique for ferrets, we found that cortical folding was impaired in the ferret cerebral cortex when FGF signaling was inhibited...
November 14, 2017: ELife
https://www.readbyqxmd.com/read/29130966/itraq-based-proteomic-analysis-of-neonatal-kidney-from-offspring-of-protein-restricted-rats-reveals-abnormalities-in-intraflagellar-transport-proteins
#11
Xiaomei Liu, Jun Wang, Linlin Gao, Hao Liu, Caixia Liu
BACKGROUND: It is well recognized that adverse events in utero can impair fetal development and lead to the development of kidney injury and hypertension in adulthood. We previously reported a lower kidney index, glomeruli number, and decreased glomerular filtration rate in intrauterine growth restriction (IUGR) offspring induced by maternal protein malnutrition. To explore the molecular mechanisms linking impaired fetal growth to renal diseases, we investigated differentially expressed proteins (DEPs) in the IUGR neonatal kidneys by isobaric tags for relative and absolute quantitation (iTRAQ) analysis...
November 6, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29130119/p85-regulates-neuronal-migration-through-affecting-neuronal-morphology-during-mouse-corticogenesis
#12
Xinran Cheng, Kaikai Li, MengMeng Liu, Xinde Hu, Mingrui Xu, Runchuan Yan, Shanting Zhao
In mammalian developing embryonic cortex, projection neurons migrate from the ventricular zone to the cortical plate, guided by radial glial cells with a transformation between bipolar and multipolar morphology. Previous studies have demonstrated that the PI3K-Akt-mTOR signal plays a critical role in brain development. However, the function of P85 in cortical development is still unclear. In the present study, we found that overexpression of P85 impaired cortical neuronal migration. Using in utero electroporation, we revealed that the length of the leading process in P85 overexpressed neurons became shorter than that in the control group but with more branches...
November 13, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/29127956/minimally-invasive-fetal-surgery
#13
REVIEW
Claire E Graves, Michael R Harrison, Benjamin E Padilla
Fetal surgery corrects severe congenital anomalies in utero to prevent their severe consequences on fetal development. The significant risk of open fetal operations to the pregnant mother has driven innovation toward minimally invasive procedures that decrease the risks inherent to hysterotomy. In this article, we discuss the basic principles of minimally invasive fetal surgery, the general history of its development, specific conditions and procedures used to treat them, and the future of the field.
December 2017: Clinics in Perinatology
https://www.readbyqxmd.com/read/29127326/proteolytic-cleavage-of-transmembrane-cell-adhesion-molecule-l1-by-extracellular-matrix-molecule-reelin-is-important-for-mouse-brain-development
#14
David Lutz, Ahmed Sharaf, Dagmar Drexler, Hardeep Kataria, Gerrit Wolters-Eisfeld, Bianka Brunne, Ralf Kleene, Gabriele Loers, Michael Frotscher, Melitta Schachner
The cell adhesion molecule L1 and the extracellular matrix protein Reelin play crucial roles in the developing nervous system. Reelin is known to activate signalling cascades regulating neuronal migration by binding to lipoprotein receptors. However, the interaction of Reelin with adhesion molecules, such as L1, has remained poorly explored. Here, we report that full-length Reelin and its N-terminal fragments N-R2 and N-R6 bind to L1 and that full-length Reelin and its N-terminal fragment N-R6 proteolytically cleave L1 to generate an L1 fragment with a molecular mass of 80 kDa (L1-80)...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29125932/pathogenesis-of-cleft-palate-in-robin-sequence-observations-from-prenatal-magnetic-resonance-imaging
#15
Cory M Resnick, Judy A Estroff, Tessa D Kooiman, Carly E Calabrese, Maarten J Koudstaal, Bonnie L Padwa
PURPOSE: The etiology of the palatal cleft in Robin sequence (RS) is unknown. The purpose of this study was to assess the position of the fetal tongue at prenatal magnetic resonance imaging (MRI) and to suggest a potential relation between tongue position and development of the cleft palate seen in most patients with RS. MATERIALS AND METHODS: This is a retrospective case-and-control study including fetuses with prenatal MRIs performed in the authors' center from 2002 to 2017...
October 16, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29125320/prenatal-famine-exposure-and-mental-health-in-later-midlife
#16
Thijs van den Broek, Maria Fleischmann
OBJECTIVES: Maternal malnutrition during pregnancy may have long-lasting effects on offspring's mental health. We investigate the effect of prenatal exposure to the Dutch famine (mid November 1944 to late April 1945) on mental health in later mid-life. METHODS: Data are from the Netherlands Kinship Panel Study (n = 642). We use difference-in-difference analyses to compare mental health in later midlife (measured with the MHI-5 index) across three cohorts ('pre-famine cohort', 'famine cohort', 'post-famine cohort') and across two regions (famine affected cities vs...
November 10, 2017: Aging & Mental Health
https://www.readbyqxmd.com/read/29124740/organizing-activity-of-fgf8-on-the-anterior-telencephalon
#17
Tatsuya Sato, Takako Kikkawa, Tetsuichiro Saito, Keiichi Itoi, Noriko Osumi
The anterior part of the embryonic telencephalon gives rise to several brain regions that are important for animal behavior, including the frontal cortex (FC) and the olfactory bulb. The FC plays an important role in decision-making behaviors, such as social and cognitive behavior, and the olfactory bulb is involved in olfaction. Here, we show the organizing activity of fibroblast growth factor 8 (Fgf8) in the regionalization of the anterior telencephalon, specifically the FC and the olfactory bulb. Misexpression of Fgf8 in the most anterior part of the mouse telencephalon at embryonic day 11...
November 10, 2017: Development, Growth & Differentiation
https://www.readbyqxmd.com/read/29123159/zinc-is-a-critical-regulator-of-placental-morphogenesis-and-maternal-hemodynamics-during-pregnancy-in-mice
#18
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/29120314/ethical-challenges-in-fasd-prevention-scientific-uncertainty-stigma-and-respect-for-women-s-autonomy
#19
Natalie Zizzo, Eric Racine
Fetal alcohol spectrum disorder (FASD) is a leading form of neurodevelopmental delay in Canada, affecting an estimated 3000 babies per year. FASD involves a range of disabilities that entail significant costs to affected individuals, families, and society. Exposure to alcohol in utero is a necessary factor for FASD development, and this has led to FASD being described as "completely preventable". However, there are significant ethical challenges associated with FASD prevention. These challenges revolve around 1) what should be communicated about the risks of alcohol consumption during pregnancy, given some ongoing scientific uncertainty about the effects of prenatal alcohol exposure, and 2) how to communicate these risks, given the potential for stigma against women who give birth to children with FASD as well as against children and adults with FASD...
November 9, 2017: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
https://www.readbyqxmd.com/read/29117499/preclinical-chorioamnionitis-dysregulates-cxcl1-cxcr2-signaling-throughout-the-placental-fetal-brain-axis
#20
REVIEW
Tracylyn R Yellowhair, Shahani Noor, Jessie R Maxwell, Christopher V Anstine, Akosua Y Oppong, Shenandoah Robinson, Erin D Milligan, Lauren L Jantzie
In the United States, perinatal brain injury (PBI) is a major cause of infant mortality and childhood disability. For a large proportion of infants with PBI, central nervous system (CNS) injury begins in utero with inflammation (chorioamnionitis/CHORIO) and/or hypoxia-ischemia. While studies show CHORIO contributes to preterm CNS injury and is also a common independent risk factor for brain injury in term infants, the molecular mechanisms mediating inflammation in the placental-fetal-brain axis that result in PBI remain a gap in knowledge...
November 5, 2017: Experimental Neurology
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