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Fetal microarray

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https://www.readbyqxmd.com/read/28331934/microarray-analysis-of-differential-gene-expression-profile-between-human-fetal-and-adult-heart
#1
Zhimin Geng, Jue Wang, Lulu Pan, Ming Li, Jitai Zhang, Xueli Cai, Maoping Chu
Although many changes have been discovered during heart maturation, the genetic mechanisms involved in the changes between immature and mature myocardium have only been partially elucidated. Here, gene expression profile changed between the human fetal and adult heart was characterized. A human microarray was applied to define the gene expression signatures of the fetal (13-17 weeks of gestation, n = 4) and adult hearts (30-40 years old, n = 4). Gene ontology analyses, pathway analyses, gene set enrichment analyses, and signal transduction network were performed to predict the function of the differentially expressed genes...
March 22, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28293297/incidence-of-the-22q11-2-deletion-in-a-large-cohort-of-miscarriage-samples
#2
Melissa K Maisenbacher, Katrina Merrion, Barbara Pettersen, Michael Young, Kiyoung Paik, Sushma Iyengar, Stephanie Kareht, Styrmir Sigurjonsson, Zachary P Demko, Kimberly A Martin
BACKGROUND: The 22q11.2 deletion syndrome is the most common microdeletion syndrome in livebirths, but data regarding its incidence in other populations is limited and also include ascertainment bias. This study was designed to determine the incidence of the 22q11.2 deletion in miscarriage samples sent for clinical molecular cytogenetic testing. RESULTS: Twenty-six thousand one hundred one fresh product of conception (POC) samples were sent to a CLIA- certified, CAP-accredited laboratory from April 2010--May 2016 for molecular cytogenetic miscarriage testing using a single-nucleotide polymorphism (SNP)-based microarray platform...
2017: Molecular Cytogenetics
https://www.readbyqxmd.com/read/28270404/pbx1-haploinsufficiency-leads-to-syndromic-congenital-anomalies-of-the-kidney-and-urinary-tract-cakut-in-humans
#3
Pauline Le Tanno, Julie Breton, Marie Bidart, Véronique Satre, Radu Harbuz, Pierre F Ray, Caroline Bosson, Klaus Dieterich, Sylvie Jaillard, Sylvie Odent, Gemma Poke, Rachel Beddow, Maria Christina Digilio, Antonio Novelli, Laura Bernardini, Maria Antonietta Pisanti, Luisa Mackenroth, Karl Hackmann, Ida Vogel, Rikke Christensen, Siv Fokstuen, Frédérique Béna, Florence Amblard, Francoise Devillard, Gaelle Vieville, Alexia Apostolou, Pierre-Simon Jouk, Fitsum Guebre-Egziabher, Hervé Sartelet, Charles Coutton
BACKGROUND: Congenital anomalies of the kidney and urinary tract (CAKUT) represent a significant healthcare burden since it is the primary cause of chronic kidney in children. CNVs represent a recurrent molecular cause of CAKUT but the culprit gene remains often elusive. Our study aimed to define the gene responsible for CAKUT in patients with an 1q23.3q24.1 microdeletion. METHODS: We describe eight patients presenting with CAKUT carrying an 1q23.3q24.1 microdeletion as identified by chromosomal microarray analysis (CMA)...
March 7, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/28259892/chromosomal-microarray-and-fetal-growth-restriction
#4
Federico Prefumo, Anna Fichera, Nicola Fratelli, Claudia Izzi
No abstract text is available yet for this article.
March 4, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28253570/-clinical-analysis-of-21-cases-with-short-fetal-femur-in-the-third-trimester
#5
Y Ren, Y Q You, H H Zhou, L X Wang, H Xu, R B Li, S J Wang, X X Xie, Y G Meng, Y P Lu
Objective: To analyze the clinical features and to explore the etiology of short fetal femur during the third trimester. Methods: From January 2010 to June 2016, 21 singleton pregnancies with short fetal femur detected by ultrasonography during the third trimester were referred to the Chinese PLA General Hospital. Clinical data were collected, karyotype or single nucleotide polymorphism microarray was carried out to detect chromosomal abnormalities, and FGFR3 c.1138G>A mutation detection was carried out to detect achondroplasia (ACH) via invasive procedure, respectively...
February 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28247551/characterization-of-chromosomal-abnormalities-in-pregnancy-losses-reveals-critical-genes-and-loci-for-human-early-development
#6
Yiyun Chen, Justin Bartanus, Desheng Liang, Hongmin Zhu, Amy M Breman, Janice L Smith, Hua Wang, Zhilin Ren, Ankita Patel, Pawel Stankiewicz, David S Cram, Sau Wai Cheung, Lingqian Wu, Fuli Yu
Detailed characterization of chromosomal abnormalities, a common cause for congenital abnormalities and pregnancy loss, is critical for elucidating genes for human fetal development. Here, 2186 product of conception (POC) samples were tested for copy number variations (CNVs) at two clinical diagnostic centers using whole genome sequencing and high-resolution chromosomal microarray analysis. We developed a new gene discovery approach to predict potential developmental genes and identified 275 candidate genes from CNVs detected from both datasets...
February 28, 2017: Human Mutation
https://www.readbyqxmd.com/read/28209491/the-preterm-cervix-reveals-a-transcriptomic-signature-in-the-presence-of-premature-prelabor-rupture-of-membranes
#7
Sofia Makieva, Aurelija Dubicke, Sara F Rinaldi, Emma Fransson, Gunvor Ekman-Ordeberg, Jane E Norman
BACKGROUND: Premature prelabor rupture of fetal membranes accounts for 30% of all premature births and is associated with detrimental long-term infant outcomes. Premature cervical remodeling, facilitated by matrix metalloproteinases, may trigger rupture at the zone of the fetal membranes overlying the cervix. The similarities and differences underlying cervical remodeling in premature prelabor rupture of fetal membranes and spontaneous preterm labor with intact membranes are unexplored...
February 15, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28207948/right-sided-aortic-arch-in-the-age-of-microarray
#8
Edward F O'Mahony, Darren P Hutchinson, George McGillivray, Debbie L Nisbet, Ricardo Palma-Dias
OBJECTIVE: For fetuses with a diagnosis of right aortic arch and normal cardiac anatomy, we aimed to establish the frequency of chromosomal anomaly diagnosed with single nucleotide polymorphism microarray analysis, particularly focusing on microduplications or microdeletions which would have gone undetected by conventional karyotyping and six-probe fish (13,18,21, X,Y, TUPLE). METHOD: Retrospective study of fetal ultrasounds between 2011 and 2016 in an Australian tertiary referral centre...
February 16, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28196369/leveraging-online-resources-to-prioritize-candidate-genes-for-functional-analyses-using-the-fetal-testis-as-a-test-case
#9
Kathryn S McClelland, Humphrey H-C Yao
With each new microarray or RNA-seq experiment, massive quantities of transcriptomic information are generated with the purpose to produce a list of candidate genes for functional analyses. Yet an effective strategy remains elusive to prioritize the genes on these candidate lists. In this review, we outline a prioritizing strategy by taking a step back from the bench and leveraging the rich range of public databases. This in silico approach provides an economical, less biased, and more effective solution. We discuss the publicly available online resources that can be used to answer a range of questions about a gene...
2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28165153/fetal-right-aortic-arch-associated-anomalies-genetic-anomalies-with-chromosomal-microarray-analysis-and-postnatal-outcome
#10
Ruan Peng, Hong-Ning Xie, Ju Zheng, Yi Zhou, Mei-Fang Lin
OBJECTIVES: To assess the associated prenatal findings, genetic anomalies with chromosomal microarray analysis (CMA) and postnatal outcome of fetal right aortic arch (RAA). METHODS: This retrospective study reviewed 92 fetuses diagnosed with RAA and the findings of CMA using Affymetrix CytoScan HD array in our institution between 2013 and 2016. RESULTS: Postnatal data were not available for six cases and genetic data were not available for 26 cases...
February 6, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28154962/expression-of-desmoglein-2-desmocollin-3-and-plakophilin-2-in-placenta-and-bone-marrow-derived-mesenchymal-stromal-cells
#11
Melanie L Hart, Elisa Rusch, Marvin Kaupp, Kay Nieselt, Wilhelm K Aicher
Many controversial results exist when comparing mesenchymal stromal cells (MSCs) derived from different sources. Reasons include not only variables in tissue origin, but also methods of cell preparation or choice of expansion media which can strongly influence the expression and hence, function of the cells. In this short report we aimed to investigate the expression of the cell anchoring proteins desmoglein 2, desmocollin 3 and plakophilin 2 in early passage placenta-derived MSCs of fetal (fetal pMSCs) and maternal (maternal pMSCs) origins versus adult bone marrow-derived MSCs (bmMSCs) that were expanded and cultured under the same good manufacturing practice (GMP) conditions...
February 2, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28130428/hla-gene-expression-is-altered-in-whole-blood-and-placenta-from-women-who-later-developed-preeclampsia
#12
Heather Y Small, Christine Akehurst, Liliya Sharafetdinova, Martin W McBride, John D McClure, Scott W Robinson, David M Carty, Dilys J Freeman, Christian Delles
Preeclampsia is a multisystem disease that significantly contributes to maternal and fetal morbidity and mortality. In this study, we used a non-biased microarray approach to identify dysregulated genes in maternal whole blood samples which may be associated with the development of preeclampsia. Whole blood samples were obtained at 28 wk of gestation from 5 women who later developed preeclampsia (cases) and 10 matched women with normotensive pregnancies (controls). Placenta samples were obtained from an independent cohort of 19 women with preeclampsia matched with 19 women with normotensive pregnancies...
March 1, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28120744/porcine-neural-progenitor-cells-derived-from-tissue-at-different-gestational-ages-can-be-distinguished-by-global-transcriptome
#13
Jing Yang, Steven Menges, Ping Gu, Ronald Tongbai, Melissa Samuel, Randall S Prather, Henry Klassen
The impact of gestational age on mammalian neural progenitor cells is potentially important for both an understanding of neural development and the selection of donor cells for novel cellbased treatment strategies. In terms of the latter, it can be problematic to rely entirely on rodent models in which the gestational period is significantly shorter and the brain much smaller than is the case in humans. Here we analyzed pig brain progenitor cells (pBPCs) harvested at two different gestational ages (E45 and E60) using gene expression profiles, obtained by microarray analysis and qPCR, across time in culture...
January 24, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28119396/differential-expression-of-human-%C3%AE-tubulin-isotypes-during-neuronal-development-and-oxidative-stress-points-to-a-%C3%AE-tubulin-2-prosurvival-function
#14
Eduarda Dráberová, Vadym Sulimenko, Stanislav Vinopal, Tetyana Sulimenko, Vladimíra Sládková, Luca D'Agostino, Margaryta Sobol, Pavel Hozák, Leoš Křen, Christos D Katsetos, Pavel Dráber
γ-Tubulins are highly conserved members of the tubulin superfamily essential for microtubule nucleation. Humans possess 2 γ-tubulin genes. It is thought that γ-tubulin-1 represents a ubiquitous isotype, whereas γ-tubulin-2 is found predominantly in the brain, where it may be endowed with divergent functions beyond microtubule nucleation. The molecular basis of the purported functional differences between γ-tubulins is unknown. We report discrimination of human γ-tubulins according to their electrophoretic and immunochemical properties...
January 24, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28108156/the-role-of-ultrasound-in-women-who-undergo-cell-free-dna-screening
#15
Mary E Norton, Joseph R Biggio, Jeffrey A Kuller, Sean C Blackwell
The introduction of cell-free DNA screening for aneuploidy into obstetric practice in 2011 revolutionized the strategies utilized for prenatal testing. The purpose of this document is to review the current data on the role of ultrasound in women who have undergone or are considering cell-free DNA screening. The following are Society for Maternal-Fetal Medicine recommendations: (1) in women who have already received a negative cell-free DNA screening screen, ultrasound at 11-14 weeks of gestation solely for the purpose of nuchal translucency measurement (Current Procedural Terminology code 76813) is not recommended (grade 1B); (2) we recommend that diagnostic testing should not be recommended to patients solely for the indication of an isolated soft marker in the setting of a negative cell-free DNA screen (grade 2B); (3) in women with an isolated soft marker without other clinical implications (ie, choroid plexus cyst or echogenic intracardiac focus) and a negative cell-free DNA screen, we recommend describing the finding as not clinically significant or as a normal variant (grade 2B); (4) in women with an isolated soft marker that has no other clinical implication (ie, choroid plexus cyst or echogenic intracardiac focus) and a negative first- or second-trimester screening result, we recommend describing the finding as not clinically significant or as a normal variant (grade 2B); (5) we recommend that all women in whom a structural abnormality is identified by ultrasound should be offered diagnostic testing with chromosomal microarray (grade 1A); and (6) we recommend against routine screening for microdeletions with cell-free DNA screening (grade 1B)...
January 17, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28069986/mechanisms-involved-in-porcine-early-embryo-survival-following-ethanol-exposure
#16
Florence Pagé-Larivière, Céline Campagna, Marc-André Sirard
Alcohol consumption during pregnancy is still a cause of preventable birth defects and developmental disabilities. However, little is known about the impact of ethanol on preimplantation embryos and the molecular mechanisms involved. We aimed to determine the toxicogenomic impacts and the mechanisms involved in preimplantation embryonic survival following 0.2% ethanol exposure in porcine embryos. Gene expression changes were measured with a porcine embryo specific microarray and confirmed by RT-qPCR. Compared to control, ethanol exposure led to a 43% decrease in blastocyst rate and activated pathways associated with oxidative stress and nervous system damage, such as TP53 and TGF...
January 9, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28068868/mir-26a-mediates-adipogenesis-of-amniotic-fluid-mesenchymal-stem-stromal-cells-via-pten-cyclin-e1-and-cdk6
#17
Ourania Trohatou, Dimitra Zagoura, Nikos K Orfanos, Kalliopi I Pappa, Evangelos Marinos, Nicholas P Anagnou, Maria G Roubelakis
Recent findings indicate that microRNAs (miRNAs) are critical for the regulatory network of adipogenesis in human mesenchymal stem/stromal cells (MSCs). Fetal MSCs derived from amniotic fluid (AF-MSCs) represent a population of multipotent stem cells characterized by a wide range of differentiation properties that can be applied in cell-based therapies. In this study, miRNA microarray analysis was performed to assess miRNA expression in terminal differentiated AF-MSCs into adipocyte-like cells (AL cells). MiR-26a was identified in high expression levels in AL cells indicating a critical role in the process of adipogenesis...
February 13, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28050331/placental-microrna-expression-is-not-altered-by-maternal-obesity-and-fetal-overgrowth
#18
Neda Ghaffari, Samuel Parry, Michal A Elovitz, Celeste P Durnwald
Objective The epigenetic mechanisms underlying fetal metabolic programming are poorly understood. We studied whether obesity is associated with alterations in placental miRNA expression. Study Design A cross-sectional study was performed, including (1) normal-weight women (BMI 20-24.9 kg/m(2)) and normal-birth-weight (BW) infants (2,700-3,500 g) (n = 20), (2) normal-weight and macrosomic infants (BW ≥ 4,000 g) (n = 10), (3) obese (BMI ≥ 35 kg/m(2)) and normal BW infants (n = 16), and (4) obese and macrosomic infants (n = 10)...
October 2016: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/28012457/identification-of-novel-genetic-markers-for-mouse-yolk-sac-cells-by-using-microarray-analyses
#19
Shinomi Yagi, Nobuyoshi Shiojiri
The mouse embryonic yolk sac consists of a visceral yolk sac (VYS) and parietal yolk sac (PYS), and may function as a materno-fetal exchange system for nutrients and wastes, and physical protector for the embryo/fetus. The present study was undertaken to characterize gene expression of the VYS and PYS endodermal cells, and to identify their novel genetic markers from microarray data. Apoa4, Lrp2, Fxyd2, Slc34a3 and Entpd2 were predominantly expressed in VYS epithelial cells. Gkn2 and Pga5 were selected as markers for PYS cells...
January 2017: Placenta
https://www.readbyqxmd.com/read/28003730/accumulation-of-cholesterol-and-increased-demand-for-zinc-in-serum-deprived-rpe-cells
#20
Sanghamitra Mishra, Katherine Peterson, Lili Yin, Alan Berger, Jianguo Fan, Graeme Wistow
PURPOSE: Having observed that confluent ARPE-19 cells (derived from human RPE) survive well in high-glucose serum-free medium (SFM) without further feeding for several days, we investigated the expression profile of RPE cells under the same conditions. METHODS: Expression profiles were examined with microarray and quantitative PCR (qPCR) analyses, followed by western blot analysis of key regulated proteins. The effects of low-density lipoprotein (LDL) and zinc supplementation were examined with qPCR...
2016: Molecular Vision
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