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https://www.readbyqxmd.com/read/29747649/effects-and-molecular-mechanisms-of-intrauterine-infection-inflammation-on-lung-development
#1
Jiarong Pan, Canyang Zhan, Tianming Yuan, Weiyan Wang, Ying Shen, Yi Sun, Tai Wu, Weizhong Gu, Lihua Chen, Huimin Yu
BACKGROUND: Intrauterine infection/inflammation plays an important role in the development of lung injury and bronchopulmonary dysplasia (BPD) in preterm infants, While a multifactorial genesis is likely, mechanisms involved in BPD after intrauterine infection/inflammation are largely unknown. Recent studies have suggested microRNAs (miRNAs) are likely to play a role. Therefore, this study aimed to study the effects and mechanisms of intrauterine infection/inflammation on lung development, and to identify miRNAs related to lung injury and BPD...
May 10, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29741588/paternal-developmental-toxicant-exposure-is-associated-with-epigenetic-modulation-of-sperm-and-placental-pgr-and-igf2-in-a-mouse-model
#2
Tianbing Ding, Shilpa Mokshagundam, Paolo F Rinaudo, Kevin G Osteen, Kaylon L Bruner-Tran
Preterm birth (PTB), parturition prior to 37 weeks gestation, is the leading cause of neonatal mortality. The causes of spontaneous PTB are poorly understood; however, recent studies suggest this condition may arise as a consequence of the parental fetal environment. Specifically, we previously demonstrated that developmental exposure of male mice (F1 animals) to the environmental endocrine disruptor 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) was associated with reduced sperm quantity/quality in adulthood and control female partners frequently delivered preterm...
May 7, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29737065/-clinical-application-assessment-of-karyolite-bobs-combined-with-qf-pcr-in-the-detection-of-products-of-conception
#3
Hang Su, Hong-Mei Zhu, Ling-Ping Li, Ze Du, Yang Zeng, Ting Hu, Zhu Zhang, Shan-Ling Liu, He Wang
OBJECTIVE: To assess the accuracy and discuss the feasibility of KaryoLite bacterial artificial chromosome on beads (KL-BoBs) and quantitative fluorescent polymerase chain reaction (QF-PCR) in genetic testing of products of conception (POC) by comparing with the chromosomal microarray analysis (CMA) test results. METHODS: Eighty-one cases of abortion samples were collected in the prenatal diagnosis center of West China Second University Hospital in Sichuan University from May to August 2016,including 61 cases of placenta tissues,19 cases of fetal muscle tissues and 1 case of fetal liver tissue...
March 2018: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29722560/intrauterine-growth-restriction-decreases-nuclear-factor-kappa-b-signaling-in-fetal-pulmonary-artery-endothelial-cells-of-fetal-sheep
#4
R Blair Dodson, Kyle N Powers, Jason Gien, Paul J Rozance, Gregory J Seedorf, David Astling, Kenneth Lloyd Jones, Timothy M Crombleholme, Steven H Abman, Cristina M Alvira
Intrauterine growth restriction (IUGR) in premature newborns increases the risk for bronchopulmonary dysplasia (BPD), a chronic lung disease characterized by disrupted pulmonary angiogenesis and alveolarization. We previously showed that experimental IUGR impairs angiogenesis, however, mechanisms that impair pulmonary artery endothelial cell (PAEC) function are uncertain. The nuclear factor-kappa-B (NFκB) pathway promotes vascular growth in the developing mouse lung, and we hypothesized that IUGR disrupts NFκB-regulated pro-angiogenic targets in fetal PAEC...
May 3, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29709429/mild-ventriculomegaly-from-fetal-consultation-to-neurodevelopmental-assessment-a-single-center-experience-and-review-of-the-literature
#5
Barbara Scelsa, Mariangela Rustico, Andrea Righini, Cecilia Parazzini, Marina Antonella Balestriero, Paola Introvini, Luigina Spaccini, Massimo Mastrangelo, Gianluca Lista, Gian Vincenzo Zuccotti, Pierangelo Veggiotti
OBJECTIVE: The aim of our study was to determine the outcome of fetuses with isolated mild ventriculomegaly, with prenatal imaging work-up, prenatal consultation, delivery and clinical follow-up performed in a single tertiary referring center. METHODS: Fetuses with isolated and non-progressive mild ventriculomegaly (10-15 mm) were included in the study. Inclusion criteria were as follows: singleton pregnancies, normal chromosomal analysis, normal serological evaluation of TORCH, fetal ultrasound and MRI excluding additional CNS or extra-CNS malformations...
April 12, 2018: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/29705191/society-for-maternal-fetal-medicine-smfm-consult-series-45-mild-fetal-ventriculomegaly-diagnosis-evaluation-and-management
#6
Nathan S Fox, Ana Monteagudo, Jeffrey A Kuller, Sabrina Craigo, Mary E Norton
Ventriculomegaly is defined as dilation of the fetal cerebral ventricles and is a relatively common finding on prenatal ultrasound. The purpose of this document is to review the diagnosis, evaluation, and management of mild fetal ventriculomegaly. When enlargement of the lateral ventricles (≥10 mm) is identified, a thorough evaluation should be performed, including detailed sonographic evaluation of fetal anatomy, amniocentesis for karyotype and chromosomal microarray analysis (CMA), and a workup for fetal infection...
April 26, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29704544/prenatal-exposure-to-benzophenone-3-bp-3-induces-apoptosis-disrupts-estrogen-receptor-expression-and-alters-the-epigenetic-status-of-mouse-neurons
#7
Agnieszka Wnuk, Joanna Rzemieniec, Ewa Litwa, Władysław Lasoń, Małgorzata Kajta
Current evidence indicates that benzophenone-3 (BP-3) can pass through the placental and blood-brain barriers and thus can likely affect infant neurodevelopment. Despite widespread exposure, data showing the effects of BP-3 on the developing nervous system are scarce. This study revealed for the first time that prenatal exposure to BP-3 led to apoptosis and neurotoxicity, altered the levels of estrogen receptors (ERs) and changed the epigenetic status of mouse neurons. In the present study, multiple subcutaneous injections of pregnant mice with BP-3 at 50 mg/kg, which is an environmentally relevant dose, evoked activation of caspase-3 and lactate dehydrogenase (LDH) release as well as substantial loss of mitochondrial membrane potential in neocortical cells of their embryonic offspring...
April 25, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29675757/fetal-methotrexate-syndrome-and-antley-bixler-syndrome-should-not-be-confused
#8
REVIEW
C Richards, Christine M Hall, D Johnson, Amaka C Offiah
Exposure to methotrexate in utero can result in fetal methotrexate syndrome - a condition characterised by prenatal-onset growth retardation, craniosynostosis, dysmorphic facies and multiple limb abnormalities. A literature review was prompted by the findings in a girl who is presented here with full consent from her guardian. She is the third child of unrelated parents and was 4 years old at the time of this report. Her mother took 15 mg methotrexate on two occasions during early pregnancy for juvenile idiopathic arthritis, unaware that she was pregnant...
April 19, 2018: Pediatric Radiology
https://www.readbyqxmd.com/read/29643044/-clinical-value-of-genome-wide-chromosome-microarray-technique-in-diagnosis-of-fetal-cerebral-ventriculomegaly
#9
Yi-Xian Peng, Yu-Wen Qiu, Qing-Xian Chang, Yan-Hong Yu, Mei Zhong, Kun-Rui Li
OBJECTIVE: To investigate the clinical value of gnome-wide chromosome microarray (CMA) technique in genetic etiological diagnosis of fetal cerebral ventriculomegaly. METHODS: A retrospective analysis was conducted in 109 women with singleton pregnancy, who were admitted in Nanfang Hospital with the diagnosis of cerebral ventriculomegaly in the fetuses by ultrasound between January, 2014 and December, 2016. Routine karyotype analysis and chromosome microarray analysis were performed to identify the chromosomal abnormalities in the fetuses...
March 20, 2018: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/29626710/prenatal-diagnosis-of-wolf-hirschhorn-syndrome-ultrasonography-and-molecular-karyotyping-results
#10
Li Zhen, Shu-Shu Fan, Lv-Yin Huang, Min Pan, Jin Han, Xin Yang, Dong-Zhi Li
OBJECTIVE: To present the experience on prenatal diagnosis of Wolf-Hirschhorn syndrome (WHS) to further delineate the fetal presentation of this syndrome. STUDY DESIGN: This was a retrospective analysis of ten pregnancies with fetal WHS identified by chromosomal microarray (CMA). Clinical data were reviewed for these cases, including maternal demographics, indications for invasive testing, sonographic findings, CMA results and pregnancy outcomes. RESULTS: Three cases were diagnosed at the first trimester because of an increased NT or cystic hygroma...
March 31, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29609228/-prenatal-diagnosis-of-women-with-an-adverse-reproductive-history-using-both-traditional-karyotyping-and-snp-array
#11
H S Yu, H Guo, S S Shen, X C Li, L P Zhang, X F Fan
Objective: To explore the occurrence of fetal chromosomal abnormalities among pregnant women with an adverse reproductive history using traditional karyotyping and single nucleotide polymorphism microarray (SNP-array) technology. Methods: Totally 94 in 2 163 (4.35%) cases of singleton pregnant women with an adverse reproductive history were performed amniocentesis in Jinhua Maternal and Child Health Care Hospital from June 2015 to June 2017. Traditional karyotyping and SNP-array were employed simultaneously for prenatal diagnosis, and the detection rates of the two methods were compared...
March 25, 2018: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/29606353/direct-promoter-repression-by-bcl11a-controls-the-fetal-to-adult-hemoglobin-switch
#12
Nan Liu, Victoria V Hargreaves, Qian Zhu, Jesse V Kurland, Jiyoung Hong, Woojin Kim, Falak Sher, Claudio Macias-Trevino, Julia M Rogers, Ryo Kurita, Yukio Nakamura, Guo-Cheng Yuan, Daniel E Bauer, Jian Xu, Martha L Bulyk, Stuart H Orkin
Fetal hemoglobin (HbF, α2 γ2 ) level is genetically controlled and modifies severity of adult hemoglobin (HbA, α2 β2 ) disorders, sickle cell disease, and β-thalassemia. Common genetic variation affects expression of BCL11A, a regulator of HbF silencing. To uncover how BCL11A supports the developmental switch from γ- to β- globin, we use a functional assay and protein binding microarray to establish a requirement for a zinc-finger cluster in BCL11A in repression and identify a preferred DNA recognition sequence...
March 28, 2018: Cell
https://www.readbyqxmd.com/read/29595812/rapid-prenatal-diagnosis-using-targeted-exome-sequencing-a-cohort-study-to-assess-feasibility-and-potential-impact-on-prenatal-counseling-and-pregnancy-management
#13
Natalie Chandler, Sunayna Best, Jane Hayward, Francesca Faravelli, Sahar Mansour, Emma Kivuva, Dagmar Tapon, Alison Male, Catherine DeVile, Lyn S Chitty
PurposeUnexpected fetal abnormalities occur in 2-5% of pregnancies. While traditional cytogenetic and microarray approaches achieve diagnosis in around 40% of cases, lack of diagnosis in others impedes parental counseling, informed decision making, and pregnancy management. Postnatally exome sequencing yields high diagnostic rates, but relies on careful phenotyping to interpret genotype results. Here we used a multidisciplinary approach to explore the utility of rapid fetal exome sequencing for prenatal diagnosis using skeletal dysplasias as an exemplar...
March 29, 2018: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29575086/application-of-noninvasive-prenatal-testing-in-pregnancies-with-fetal-double-bubble-sign-is-it-feasible
#14
Lv-Yin Huang, Li Zhen, Min Pan, Jin Han, Xin Yang, Dong-Zhi Li
OBJECTIVE: To evaluate the application of noninvasive prenatal testing as an alternative to invasive diagnostic testing in pregnancies with the double bubble sign. METHODS: This was a retrospective analysis of 92 pregnancies with fetal double bubble identified by prenatal ultrasound, in which invasive diagnostic testing was performed for genetic investigations using quantitative fluorescence PCR and chromosomal microarray. Noninvasive prenatal testing was assumed to provide to patients for screening for the common aneuploidies...
March 25, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29556382/characterization-of-human-dental-pulp-cells-grown-in-chemically-defined-serum-free-medium
#15
Sakiko Fujii, Katsumi Fujimoto, Noriko Goto, Yoshimitsu Abiko, Asayo Imaoka, Jinchang Shao, Kazuko Kitayama, Masami Kanawa, Agung Sosiawan, Ketut Suardita, Fusanori Nishimura, Yukio Kato
Dental pulp cells (DPCs) are promising candidates for use as transplantable cells in regenerative medicine. However, ex vivo expansion of these cells typically requires culture media containing fetal bovine serum, which may cause infection and immunological reaction following transplantation. In addition, the proliferation and differentiation of DPCs markedly depend upon serum batches. Therefore, the present study examined whether DPCs could be expanded under serum-free conditions. DPCs obtained from four donors were identified to proliferate actively in the serum-free medium, STK2, when compared with those cells in control medium (Dulbecco's modified Eagle's medium containing 10% serum)...
April 2018: Biomedical Reports
https://www.readbyqxmd.com/read/29540801/imaging-single-dna-molecules-for-high-precision-nipt
#16
Fredrik Dahl, Olle Ericsson, Olof Karlberg, Filip Karlsson, Mathias Howell, Fredrik Persson, Fredrik Roos, Johan Stenberg, Tarja Ahola, Ida Alftrén, Björn Andersson, Emelie Barkenäs, Birgit Brandner, Jenny Dahlberg, Sara Elfman, Magnus Eriksson, Per-Ola Forsgren, Niels Francois, Anna Gousseva, Faizan Hakamali, Åsa Janfalk-Carlsson, Henrik Johansson, Johanna Lundgren, Atefeh Mohsenchian, Linus Olausson, Simon Olofsson, Atif Qureshi, Björn Skarpås, Anna Sävneby, Eva Åström, Ove Öhman, Magnus Westgren, Helena Kopp-Kallner, Aino Fianu-Jonasson, Argyro Syngelaki, Kypros Nicolaides
Cell-free DNA analysis is becoming adopted for first line aneuploidy screening, however for most healthcare programs, cost and workflow complexity is limiting adoption of the test. We report a novel cost effective method, the Vanadis NIPT assay, designed for high precision digitally-enabled measurement of chromosomal aneuploidies in maternal plasma. Reducing NIPT assay complexity is achieved by using novel molecular probe technology that specifically label target chromosomes combined with a new readout format using a nanofilter to enrich single molecules for imaging and counting without DNA amplification, microarrays or sequencing...
March 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29540503/integrin-%C3%AE-2-marks-a-niche-of-trophoblast-progenitor-cells-in-first-trimester-human-placenta
#17
Cheryl Q E Lee, Margherita Y Turco, Lucy Gardner, Benjamin D Simons, Myriam Hemberger, Ashley Moffett
During pregnancy the trophoblast cells of the placenta are the only fetal cells in direct contact with maternal blood and decidua. Their functions include transport of nutrients and oxygen, secretion of pregnancy hormones, remodelling of the uterine arteries, and communicating with maternal cells. Despite the importance of trophoblast cells in placental development and successful pregnancy, little is known about the identity, location and differentiation of human trophoblast progenitors. We identify a proliferative trophoblast niche at the base of the cytotrophoblast cell columns in first trimester placentas that is characterised by integrin α2 (ITGA2) expression...
April 16, 2018: Development
https://www.readbyqxmd.com/read/29533390/human-pluripotent-stem-cell-derived-hlc-transcriptome-data-enables-molecular-dissection-of-hepatogenesis
#18
Wasco Wruck, James Adjaye
Induced pluripotent stem cells (iPSCs) and human embryonic stem cells (hESCs) differentiated into hepatocyte-like cells (HLCs) provide a defined and renewable source of cells for drug screening, toxicology and regenerative medicine. We previously reprogrammed human fetal foreskin fibroblast cells (HFF1) into iPSCs employing an episomal plasmid-based integration-free approach, this iPSC-line and the hESC lines H1 and H9 were used to model hepatogenesis in vitro. Biochemical characterisation confirmed glycogen storage, ICG uptake and release, urea and bile acid production, as well as CYP3A4 activity...
March 13, 2018: Scientific Data
https://www.readbyqxmd.com/read/29525519/high-resolution-global-chromosomal-aberrations-from-spontaneous-miscarriages-revealed-by-low-coverage-whole-genome-sequencing
#19
Hong Qi, Zhao-Ling Xuan, Yang Du, Li-Rong Cai, Han Zhang, Xiao-Hui Wen, Xiang-Dong Kong, Kai Yang, Yang Mi, Xin-Xin Fu, Shan-Bo Cao, Juan Wang, Chong-Jian Chen, Jun-Bin Liang
OBJECTIVE: Chromosome aberrations are generally considered as one of the most substantial causative factors contributing to spontaneous miscarriages. Cytogenetic analyses like G-banded karyotype and chromosomal microarray analyses are often performed to further investigate the chromosome status of a miscarried fetus. STUDY DESIGN: Here, we describe a novel method, AnnoCNV, to detect DNA copy number variations (CNVs) using low coverage whole genome sequencing (WGS)...
May 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29522884/microarray-analysis-in-pregnancies-with-isolated-echogenic-bowel
#20
Amihood Singer, Idit Maya, Arie Koifman, Nadra Nasser Samra, Hagit N Baris, Tzipora Falik-Zaccai, Shay Ben Shachar, Lena Sagi-Dain
INTRODUCTION: Fetal echogenic bowel is a frequent sonographic finding, demonstrated in about 1% of pregnancies. The advised evaluation of fetal echogenic bowel includes maternal serology, genetic testing for cystic fibrosis, detailed sonographic anatomic survey, and invasive prenatal testing for fetal chromosomal aberrations. The objective of our study was to evaluate the risk for clinically significant chromosomal microarray analysis (CMA) findings in pregnancies with isolated echogenic bowel...
April 2018: Early Human Development
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