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https://www.readbyqxmd.com/read/28544538/cornelia-de-lange-syndrome-to-diagnose-or-not-to-diagnose-in-utero
#1
REVIEW
Laura Avagliano, Gaetano Pietro Bulfamante, Valentina Massa
Cornelia de Lange syndrome (CdLS) is an inherited condition with a wide spectrum of phenotypic anomalies, consisting mainly of growth impairment, multi-organ abnormalities, and neurocognitive delay. Clinical diagnostic criteria after birth are well defined, whereas when to suspect the syndrome during intrauterine life still remains undefined. This review summarizes the main possible prenatal findings in CdLS, suggesting that a skilled ultrasound scan in cases of intrauterine growth restriction associated with other fetal abnormalities may improve the chance of prenatal diagnosis of CdLS, especially in families known to be at high risk...
May 22, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28543436/prenatal-environmental-tobacco-smoke-exposure-increases-allergic-asthma-risk-with-methylation-changes-in-mice
#2
Sonja Christensen, Zeina Jaffar, Elizabeth Cole, Virginia Porter, Maria Ferrini, Britten Postma, Kent E Pinkerton, Mihi Yang, Yang Jee Kim, Luke Montrose, Kevan Roberts, Andrij Holian, Yoon Hee Cho
Allergic asthma remains an inadequately understood disease. In utero exposure to environmental tobacco smoke (ETS) has been identified as an environmental exposure that can increase an individual's asthma risk. To improve our understanding of asthma onset and development, we examined the effect of in utero ETS exposure on allergic disease susceptibility in an asthmatic phenotype using a house dust mite (HDM) allergen-induced murine model. Pregnant C57BL/6 mice were exposed to either filtered air or ETS during gestation, and their offspring were further exposed to HDM at 6-7 weeks old to induce allergic inflammation...
May 25, 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/28543284/in-utero-oxcarbazepine-exposure-and-neonatal-abstinence-syndrome-case-report-and-brief-review-of-the-literature
#3
Chao-Yang Chen, Xing Li, Ling-Yue Ma, Peng-Hui Wu, Ying Zhou, Qi Feng, Yi-Min Cui
Oxcarbazepine is a second-generation antiepileptic drug that is used to treat partial seizures. Although it has been increasingly used in pregnant women, its fetal safety has not been fully validated. We describe a 12-hour-old neonate who developed neonatal abstinence syndrome (NAS) following intrauterine exposure to oxcarbazepine. The neonate was born by cesarean section to a mother who took oxcarbazepine 300 mg/day for treatment of seizures throughout her pregnancy. Approximately 12 hours after birth, the infant developed paroxysmal jitter, which mainly presented as increased excitability, irritability, limb shaking, and increased muscle tone...
May 20, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28542468/alveoli-teeth-and-tooth-loss-understanding-the-homology-of-internal-mandibular-structures-in-mysticete-cetaceans
#4
Carlos Mauricio Peredo, Nicholas D Pyenson, Mark D Uhen, Christopher D Marshall
The evolution of filter feeding in baleen whales (Mysticeti) facilitated a wide range of ecological diversity and extreme gigantism. The innovation of filter feeding evolved in a shift from a mineralized upper and lower dentition in stem mysticetes to keratinous baleen plates that hang only from the roof of the mouth in extant species, which are all edentulous as adults. While all extant mysticetes are born with a mandible lacking a specialized feeding structure (i.e., baleen), the bony surface retains small foramina with elongated sulci that often merge together in what has been termed the alveolar gutter...
2017: PloS One
https://www.readbyqxmd.com/read/28538234/overview-of-lung-development-in-the-newborn-human
#5
David Warburton
In human neonates rapid adaptation from an aqueous intrauterine environment to permanent air breathing is the rate-limiting step for extrauterine life, failure of which justifies the existence of neonatal intensive care units. The lung develops at about 4-6 weeks' gestation in humans as a ventral outpouching of the primitive foregut into the surrounding ventral mesenchyme, termed the laryngotracheal groove. At its posterior end lie progenitor cells that form a pair of bronchial tubes, from which arise all the distal epithelial structures of the lung...
2017: Neonatology
https://www.readbyqxmd.com/read/28536981/a-retrospective-cohort-study-of-birth-outcomes-in-neonates-exposed-to-naltrexone-in-utero-a-comparison-with-methadone-buprenorphine-and-non-opioid-exposed-neonates
#6
Erin Kelty, Gary Hulse
BACKGROUND: Naltrexone may provide a suitable alternative to methadone and buprenorphine in the treatment of pregnant opioid-dependent women; however, little is known about its effects on neonatal morbidity and mortality. OBJECTIVE: The aim was to evaluate the health of neonates exposed to naltrexone in utero, and compare it with outcomes in neonates exposed to methadone or buprenorphine and a non-exposed control group. METHODS: Sequential cohorts of Western Australian (WA) opioid-dependent women treated with implant naltrexone, oral methadone or sublingual buprenorphine were identified via records from a drug and alcohol clinic (Subiaco, WA) for naltrexone and state prescribing records for methadone and buprenorphine...
May 23, 2017: Drugs
https://www.readbyqxmd.com/read/28536863/chemical-exposure-and-infant-leukaemia-development-of-an-adverse-outcome-pathway-aop-for-aetiology-and-risk-assessment-research
#7
REVIEW
Olavi Pelkonen, Andrea Terron, Antonio F Hernandez, Pablo Menendez, Susanne Hougaard Bennekou
Infant leukaemia (<1 year old) is a rare disease of an in utero origin at an early phase of foetal development. Rearrangements of the mixed-lineage leukaemia (MLL) gene producing abnormal fusion proteins are the most frequent genetic/molecular findings in infant B cell-acute lymphoblastic leukaemia. In small epidemiological studies, mother/foetus exposures to some chemicals including pesticides have been associated with infant leukaemia; however, the strength of evidence and power of these studies are weak at best...
May 23, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28532830/transrectal-ultrasonography-for-measuring-of-combined-utero-placental-thickness-in-pregnant-mangalarga-marchador-mares
#8
REVIEW
Isabela S Campos, Guilherme N de Souza, Aline E Pinna, Ana M R Ferreira
This study aimed to measure the physiological changes in the combined utero-placental thickness (CUPT) during the course of normal pregnancy in Mangalarga Marchador mares. Transrectal B-mode ultrasonography was used to measure CUPT in 42 pregnant mares with a mean age, 8.7 (±3.5 years). CUPT was measured every month from 150 days of gestation until delivery. CUPT was expressed as an average of three measurements of the distance (mm) between the middle part of the uterine artery and the allantoic fluid. A General Linear Model was used to evaluate the major effects of the chronological age and stage of gestation on CUPT in mares...
July 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28532774/genotype-positive-long-qt-syndrome-in-patients-with-coexisting-congenital-heart-disease
#9
Mohammed A Ebrahim, Matthew R Williams, Suzanne Shepard, James C Perry
Congenital long QT syndrome (LQTS) is characterized by QT prolongation with predisposition to life-threatening arrhythmia. There have been sporadic reports of LQTS coexisting with more common forms of congenital heart disease (CHD). However, the diagnosis of LQTS when CHD is present may be confounded by several common variables including postoperative electromechanical factors predisposing to ventricular arrhythmia, intrinsic, and postoperative QRS abnormalities. This report documents a single-center experience with patients who have both genetically confirmed LQTS and CHD to examine their modes of presentation and factors associated with making the diagnosis of LQTS in this patient population, as well as potential confounding variables that may mask or delay both LQTS diagnosis and initiation of therapy...
April 27, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28532524/is-maternal-periconceptional-smoking-associated-with-2d-4d-digit-ratio-in-their-children
#10
M P Velez, T E Arbuckle, P Monnier, W D Fraser
The 2nd--4th finger ratio (2D:4D) has been proposed as a potential indicator of greater androgen exposure during fetal development. Maternal periconceptional smoking may alter the homeostasis of fetal androgens, which could in turn result in differential development of 2D:4Ds in utero. The aim of the present study was to assess the effect of maternal periconceptional smoking (i.e. 1 year before through the first trimester of pregnancy) on the 2D:4D of children within The Maternal-Infant Research on Environmental Chemicals (MIREC) study...
May 23, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28529976/de-novo-generation-and-characterization-of-new-zika-virus-isolate-using-sequence-data-from-a-microcephaly-case
#11
Yin Xiang Setoh, Natalie A Prow, Nias Peng, Leon E Hugo, Gregor Devine, Jessamine E Hazlewood, Andreas Suhrbier, Alexander A Khromykh
Zika virus (ZIKV) has recently emerged and is the etiological agent of congenital Zika syndrome (CZS), a spectrum of congenital abnormalities arising from neural tissue infections in utero. Herein, we describe the de novo generation of a new ZIKV isolate, ZIKVNatal, using a modified circular polymerase extension reaction protocol and sequence data obtained from a ZIKV-infected fetus with microcephaly. ZIKVNatal thus has no laboratory passage history and is unequivocally associated with CZS. ZIKVNatal could be used to establish a fetal brain infection model in IFNAR(-/-) mice (including intrauterine growth restriction) without causing symptomatic infections in dams...
May 2017: MSphere
https://www.readbyqxmd.com/read/28529058/customized-and-non-customized-live-born-birth-weight-curves-of-single-and-uncomplicated-pregnancies-from-the-burgundy-perinatal-network-part-i-methodology
#12
Thierry Rousseau, Olivia Durand-Maison, Catherine Labruere-Chazal, Florine Tabard, Ahmed Jebrane, Olivia Martz, Eric Benzenine, Jonathan Cottenet, Paul Sagot
OBJECTIVES: To establish non-customized and customized birth-weight curves of single and uncomplicated pregnancies according to gestational age. MATERIALS AND METHODS: We used data for 64.173 mother-infants pairs from the Burgundy perinatal network database (France) over the period 2005 - 2013. A validated procedure was used to link mothers with their newborns, and maternal and fetal pathologies likely to affect birth weight were excluded. Multiple regression analysis with covariate selection was used to build a customized growth curve with maternal and fetal parameters...
May 18, 2017: J Gynecol Obstet Hum Reprod
https://www.readbyqxmd.com/read/28528960/prenatal-stress-and-epigenetics
#13
REVIEW
L Cao-Lei, S R De Rooij, S King, S G Matthews, G A S Metz, T J Roseboom, M Szyf
In utero exposure to environmental stress in both animals and humans could result in long-term epigenome alterations and which further lead to consequences for adaptation and development in the offspring. Epigenetics, especially DNA methylation, is considered one of the most widely studied and well-characterized mechanisms involved in the long-lasting effects of in utero stress exposure. In this review, we outlined evidence from animal and human prenatal research supporting the view that prenatal stress could lead to lasting, broad and functionally organized signatures in DNA methylation which, in turn, could mediate exposure-phenotype associations...
May 18, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28528172/cannabis-and-pregnancy-maternal-child-health-implications-during-a-period-of-drug-policy-liberalization
#14
Katrina Mark, Mishka Terplan
Cannabis use is common and increasing among women in the United States. State policies are changing with a movement towards decriminalization and legalization. We explore the implications of cannabis liberalization for maternal and child health. Most women who use cannabis quit or cut back during pregnancy. Although women are concerned about the possible health effects of cannabis, providers do a poor job of counseling. There is a theoretical potential for cannabis to interfere with neurodevelopment, however human data have not identified any long-term or long lasting meaningful differences between children exposed in utero to cannabis and those not...
May 17, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28523418/breast-cancer-and-exposure-to-tobacco-smoke-during-potential-windows-of-susceptibility
#15
Alexandra J White, Aimee A D'Aloisio, Hazel B Nichols, Lisa A DeRoo, Dale P Sandler
PURPOSE: An association between smoking and breast cancer is unresolved, although a higher risk from exposure during windows of susceptibility has been proposed. The objective of this prospective study was to evaluate the association between tobacco smoke and breast cancer with a focus on timing of exposure, especially during early life. METHODS: Sister study participants (n = 50,884) aged 35-74 were enrolled from 2003 to 2009. Women in the United States and Puerto Rico were eligible if they were breast cancer-free but had a sister with breast cancer...
May 18, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28523300/prenatal-glucocorticoid-administration-persistently-increased-the-immunohistochemical-expression-of-type-1-metabotropic-glutamate-receptor-and-purkinje-cell-dendritic-growth-in-the-cerebellar-cortex-of-the-rat
#16
Rodrigo Pascual, Odra Santander, Isabel Cuevas, Martina Valencia
Several studies have indicated that abnormal prenatal changes in the circulating glucocorticoids (GCs), induced by either maternal stress or exogenous GC administration, significantly alter the development of Purkinje cells (PCs). Among the suggested mechanisms that could mediate this GC-dependent PC susceptibility are changes in the expression of type-1 metabotropic glutamate receptors (mGluR1). In the current study, we analyzed whether a single course of prenatally administered betamethasone phosphate (BET) in pregnant rats increased the immunohistochemical expression of mGluR1 in PCs and decreased PC dendritic growth...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28523122/sex-differences-in-rat-placental-development-from-pre-implantation-to-late-gestation
#17
J I Kalisch-Smith, D G Simmons, M Pantaleon, K M Moritz
BACKGROUND: A male fetus is suggested to be more susceptible to in utero and birth complications. This may be due in part to altered morphology or function of the XY placenta. We hypothesised that sexual dimorphism begins at the blastocyst stage with sex differences in the progenitor trophectoderm (TE) and its derived trophoblast lineages, as these cells populate the majority of cell types within the placenta. We investigated sex-specific differences in cell allocation in the pre-implantation embryo and further characterised growth and gene expression of the placental compartments from the early stages of the definitive placenta through to late gestation...
2017: Biology of Sex Differences
https://www.readbyqxmd.com/read/28520518/arrested-development-infantile-hemangioma-and-the-stem-cell-teratogenic-hypothesis
#18
Shaghayegh Harbi, Hannah Park, Michael Gregory, Peter Lopez, Luis Chiriboga, Paolo Mignatti
BACKGROUND: Early-life programming is defined by the adaptive changes made by the fetus in response to an adverse in utero environment. Infantile hemangioma (IH), a vascular anomaly, is the most common tumor of infancy. Here we take IH as the tumor model to propose the stem cell teratogenic hypothesis of tumorigenesis and the potential involvement of the immune system. OBJECTIVES: Teratogenic agents include chemicals, heavy metals, pathogens, and ionizing radiation...
May 18, 2017: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/28519244/neonatal-abstinence-syndrome-update-on-diagnostic-and-therapeutic-strategies
#19
Genny Raffaeli, Giacomo Cavallaro, K Karel Allegaert, Enno Diederik Wildschut, Monica Fumagalli, Massimo Agosti, Dick Tibboel, Fabio Mosca
Substance use among pregnant women is a major public health issue. Both prescription opioid use and illicit opioid abuse have increased dramatically in recent years. Prolonged in utero drug exposure may result in neonatal abstinence syndrome (NAS), an acute multisystemic clinical entity that occurs in the first days of life. This syndrome is caused by abrupt discontinuation of fetal exposure to licit or illicit drugs chronically consumed by the mother during pregnancy and transmitted to the fetus through the placenta...
May 18, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28512719/hypoplastic-left-heart-syndrome-with-congenital-complete-heart-block
#20
Maytham Al-Kubaisi, Safwat A Aly, Bassel Mohammad Nijres, Sawsan Awad
Congenital complete atrioventricular block (CCAVB) is a rare condition with an incidence of 1 of 20,000 live births. Hypoplastic left heart syndrome (HLHS) occurs more frequently than CCAVB and occurs in 1 of 5000 live births. HLHS in association with CCAVB is exceedingly rare. In this report, we describe a rare case of HLHS and CCAVB diagnosed in utero. Postnatal diagnosis, management and outcome are presented as well as review of the medical literature.
May 17, 2017: Pediatric Cardiology
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