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Prenatal genetic

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https://www.readbyqxmd.com/read/28717939/neonatal-stroke-and-haematuria-answers
#1
Sally Kellett, Mathieu Lemaire, Steven P Miller, Christoph Licht, Grace Yoon, Nomazulu Dlamini, Damien Noone
BACKGROUND: This is a report of an infant born near term with neonatal stroke and haematuria. The renal phenotype, pathogenic genotype and pathological findings on renal biopsy are discussed. CASE-DIAGNOSIS: Prenatal magnetic resonance imaging revealed anomalies which persisted postnatally. Haematuria was detected during follow-up. The posttnatal renal ultrasound scan was normal, and there was no associated proteinuria. A likely pathogenic genetic mutation was detected...
July 17, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28715041/diagnostic-single-gene-analyses-beyond-sanger-economic-high-throughput-sequencing-of-small-genes-involved-in-congenital-coagulation-and-platelet-disorders
#2
Juliane Najm, Matthias Rath, Winnie Schröder, Ute Felbor
Molecular testing of congenital coagulation and platelet disorders offers confirmation of clinical diagnoses, supports genetic counselling, and enables predictive and prenatal diagnosis. In some cases, genotype-phenotype correlations are important for predicting the clinical course of the disease and adaptation of individualized therapy. Until recently, genotyping has been mainly performed by Sanger sequencing. While next generation sequencing (NGS) enables the parallel analysis of multiple genes, the cost-value ratio of custom-made panels can be unfavorable for analyses of specific small genes...
July 17, 2017: Hämostaseologie
https://www.readbyqxmd.com/read/28714603/variations-in-neurodevelopmental-outcomes-in-children-with-prenatal-ssri-antidepressant-exposure
#3
REVIEW
Naama Rotem-Kohavi, Tim F Oberlander
Mood disorders and treatment with selective serotonin reuptake inhibitor (SSRI) antidepressants during pregnancy are common and both pose neurodevelopmental risks. This often makes the decision to treat prenatal depression with pharmacotherapy (i.e., antidepressants) challenging for clinicians and mothers. SSRIs block the reuptake of the neurotransmitter serotonin (5HT) and given its developmental role, it is not inconceivable that early changes in 5HT signaling could have an impact on early brain development...
July 17, 2017: Birth defects research
https://www.readbyqxmd.com/read/28711366/-contribution-of-chromosomal-microarray-analysis-by-a-multidisciplinary-prenatal-diagnosis-center
#4
C Bartholmot, E Mousty, F Grosjean, Y Petrov, P Khau Van Kien, J Chiesa, V Letouzey
OBJECTIVE: Chromosomal analysis by array CGH is a cytogenetic technique that has opened its application to prenatal diagnosis in recent years. The main objective of the study was to analyze the contribution for couples using chromosomal analysis by array CGH in a CPDPN. METHODS: A retrospective cohort study was conducted in 2015 in a CPDPN. All the patients with array CGH analysis were included in the study. The analysis indications were CN≥3.5mm, ultrasound signs, intra-uterine growth retardation and fetal deaths...
July 12, 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/28711074/hereditary-renal-diseases
#5
Lakshmi Mehta, Belinda Jim
Hereditary kidney disease comprises approximately 10% of adults and nearly all children who require renal replacement therapy. Technologic advances have improved our ability to perform genetic diagnosis and enhanced our understanding of renal and syndromic diseases. In this article, we review the genetics of renal diseases, including common monogenic diseases such as polycystic kidney disease, Alport syndrome, and Fabry disease, as well as complex disorders such as congenital anomalies of the kidney and urinary tract...
July 2017: Seminars in Nephrology
https://www.readbyqxmd.com/read/28710942/parental-psychopathology-and-offspring-attention-deficit-hyperactivity-disorder-in-a-nationwide-sample
#6
Petteri Joelsson, Roshan Chudal, Jaakko Uotila, Auli Suominen, Dan Sucksdorff, David Gyllenberg, Andre Sourander
OBJECTIVE: To study the associations between a wide range of parental psychiatric disorders and offspring attention-deficit/hyperactivity disorder (ADHD). METHOD: This study is based on a nested case-control design. The association between parental registered psychiatric diagnoses and offspring ADHD was examined adjusting for socioeconomic and prenatal factors. Data was linked from Finnish nationwide registers. The cases (n = 10,409) were all the children born between years 1991 and 2005 in Finland and diagnosed with ADHD by the end of 2011...
July 4, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28709965/sensorimotor-outcomes-in-children-with-prenatal-exposure-to-methadone
#7
Sylvia H Yoo, Lauren M Jansson, Hee-Jung Park
PURPOSE: To report the presentation and characteristics of strabismus in children with prenatal methadone exposure. METHODS: The medical records children with prenatal methadone exposure were retrospectively reviewed. Those who were evaluated by pediatric ophthalmology were included. Information on the timing and types of prenatal exposure by trimester of pregnancy was then collected from the patients' mothers' charts. The children's perinatal histories and ophthalmologic findings were collected from their pediatric clinic charts and ophthalmology clinic charts, respectively...
July 11, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28706735/the-importance-of-copy-number-variation-in-congenital-heart-disease
#8
Gregory Costain, Candice K Silversides, Anne S Bassett
Congenital heart disease (CHD) is the most common class of major malformations in humans. The historical association with large chromosomal abnormalities foreshadowed the role of submicroscopic rare copy number variations (CNVs) as important genetic causes of CHD. Recent studies have provided robust evidence for these structural variants as genome-wide contributors to all forms of CHD, including CHD that appears isolated without extra-cardiac features. Overall, a CNV-related molecular diagnosis can be made in up to one in eight patients with CHD...
September 14, 2016: NPJ Genomic Medicine
https://www.readbyqxmd.com/read/28704707/a-founder-mutation-underlies-a-severe-form-of-phosphoglutamase-3-pgm3-deficiency-in-tunisian-patients
#9
Leila Ben-Khemis, Najla Mekki, Imen Ben-Mustapha, Karen Rouault, Fethi Mellouli, Monia Khemiri, Mohamed Bejaoui, Leila Essaddam, Saayda Ben-Becher, Lamia Boughamoura, Saida Hassayoun, Meriem Ben-Ali, Mohamed-Ridha Barbouche
Phosphoglucomutase 3 (PGM3) protein catalyzes the conversion of N-acetyl-d-glucosamine-6-phosphate (GlcNAc-6-P) to N-acetyl-d-glucosamine-1-phosphate (GlcNAc-1-P), which is required for the synthesis of uridine diphosphate N-acetylglucosamine (UDP-GlcNAc) an important precursor for protein glycosylation. Mutations in PGM3 gene have been recently shown to underlie a new congenital disorder of glycosylation often associated to elevated IgE. Herein, we report twelve PGM3 deficient patients. They belong to three highly consanguineous families, originating from a rural district in the west central Tunisia...
July 10, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28703871/the-role-of-experiential-knowledge-within-attitudes-towards-genetic-carrier-screening-a-comparison-of-people-with-and-without-experience-of-spinal-muscular-atrophy
#10
Felicity K Boardman, Philip J Young, Oliver Warren, Frances E Griffiths
PURPOSE: Autosomal recessive conditions, while individually rare, are a significant health burden with limited treatment options. Population carrier screening has been suggested as a means of tackling them. Little is known, however, about the attitudes of the general public towards such carrier screening and still less about the views of people living with candidate genetic diseases. Here, we focus on the role that such experience has on screening attitudes by comparing views towards screening of people with and without prior experience of the monogenetic disorder, Spinal Muscular Atrophy...
July 13, 2017: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
https://www.readbyqxmd.com/read/28697118/finding-middle-ground-in-constructing-a-clinically-useful-expanded-carrier-screening-panel
#11
Blair Stevens, Nevena Krstic, Malorie Jones, Lauren Murphy, Jennifer Hoskovec
Expanded carrier screening for autosomal-recessive conditions effectively identifies more carrier couples than traditional guideline-based carrier screening. However, clinically available expanded carrier screening panels include numerous conditions, some of which have questionable clinical utility as a result of very low carrier frequency, low or unknown testing sensitivity, and mild or incompletely penetrant phenotypes. Using the 2013 American College of Medical Genetics and Genomics Position Statement on Prenatal and Preconception Expanded Carrier Screening and the 2017 American College of Obstetricians and Gynecologists' Committee Opinion on Carrier Screening in the Age of Genomic Medicine as guidance, we propose specific criteria for the development of expanded carrier screening panels that will maximize clinical utility and minimize patient stress, unnecessary cost of follow-up testing, and clinician time spent facilitating and performing follow-up counseling and testing...
July 7, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28696420/a-cost-effectiveness-analysis-of-maternal-cyp2d6-genetic-testing-to-guide-treatment-for-postpartum-pain-and-avert-infant-adverse-events
#12
M E Moretti, D F Lato, H Berger, G Koren, S Ito, W J Ungar
Mothers with a CYP2D6 ultrarapid metabolizer phenotype may expose their infants to risk of adverse events when taking codeine while breastfeeding, by producing more of the active metabolite, morphine. Pharmacogenetic testing may be a valuable tool to identify such mothers, but testing can be costly. The objective of the study was to determine the incremental costs of genotyping to avert neonatal adverse events during maternal pharmacotherapy. A cost-effectiveness analysis, using a decision model, was performed with a hypothetical cohort of prenatal subjects...
July 11, 2017: Pharmacogenomics Journal
https://www.readbyqxmd.com/read/28695620/correlated-response-in-litter-size-components-in-rabbits-selected-for-litter-size-variability
#13
M J Argente, E W Calle, M L García, A Blasco
A divergent selection experiment for the environmental variability of litter size (Ve) over seven generations was carried out in rabbits at the University Miguel Hernández of Elche. The Ve was estimated as the phenotypic variance within the female, after correcting for year-season and parity-lactation status. The aim of this study was to analyse the correlated responses to selection in litter size components. The ovulation rate (OR) and number of implanted embryos (IE) in females were measured by laparoscopy at 12 day of the second gestation...
July 11, 2017: Journal of Animal Breeding and Genetics, Zeitschrift Für Tierzüchtung und Züchtungsbiologie
https://www.readbyqxmd.com/read/28693373/prenatal-growth-patterns-and-birthweight-are-associated-with-differential-dna-methylation-and-gene-expression-of-cardiometabolic-risk-genes-in-human-placentas-a-discovery-based-approach
#14
Pao-Yang Chen, Alison Chu, Wen-Wei Liao, Liudmilla Rubbi, Carla Janzen, Fei-Man Hsu, Shanthie Thamotharan, Amit Ganguly, Larry Lam, Dennis Montoya, Matteo Pellegrini, Sherin U Devaskar
Inherent genetic programming and environmental factors affect fetal growth in utero. Epidemiologic data in growth-altered fetuses, either intrauterine growth restricted (IUGR) or large for gestational age (LGA), demonstrate that these newborns are at increased risk of cardiometabolic disease in adulthood. There is growing evidence that the in utero environment leads to epigenetic modification, contributing to eventual risk of developing heart disease or diabetes. In this study, we used reduced representation bisulfite sequencing to examine genome-wide DNA methylation variation in placental samples from offspring born IUGR, LGA, and appropriate for gestational age (AGA) and to identify differential methylation of genes important for conferring risk of cardiometabolic disease...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28689883/currarino-syndrome-does-the-presence-of-a-genetic-anomaly-correlate-with-a-more-severe-phenotype-a-multicentre-study
#15
Sara Costanzo, Luigina Spaccini, Luca Pio, Girolamo Mattioli, Calogero Virgone, Patrizia Dall'Igna, Barbara Iacobelli, Alessandro Inserra, Giulia Brisighelli, Anna Maria Fagnani, Ernesto Leva, Giulia Giannotti, Maurizio Cheli, Paolo Frumento, Giovanna Riccipetitoni
BACKGROUND/PURPOSE: Currarino syndrome (CS) phenotype, initially described as the triad of hemisacrum, anorectal malformation (ARM) and presacral mass, can be extremely variable. The triad is often incomplete and 3 main CS phenotypical subtypes have been described: Complete, Mild and Minimal. Various associated malformations are often present. Mutations in the MNX1 gene are the main genetic background of CS, although they are not present in almost half of the cases. Aim of our study is to analyze the distribution of the 3 CS subtypes and the incidence of associated malformations in a large sample of patients and to add information about the role of the genetic testing in guiding the diagnostic and prognostic evaluation of CS patients...
June 24, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28688121/assessing-the-cost-of-implementing-the-2011-society-of-obstetricians-and-gynecologists-of-canada-and-canadian-college-of-medical-genetics-practice-guidelines-on-the-detection-of-fetal-aneuploidies
#16
Margaret Lilley, Stacey Hume, Nina Karpoff, Georges Maire, Sherry Taylor, Robert Tomaszewski, Maisa Yoshimoto, Susan Christian
BACKGROUND: The Society of Obstetricians and Gynecologists of Canada (SOGC) and the Canadian College of Medical Genetics (CCMG) published guidelines, in 2011, recommending replacement of karyotype with QF-PCR when prenatal testing is performed because of an increased risk of a common aneuploidy. STUDY OBJECTIVE: This study's objective is to perform a cost analysis following the implementation of QF-PCR as a stand-alone test. RESULTS: A total of 658 samples were received between April 1, 2014 and August 31, 2015: 576 amniocentesis samples and 82 CVS...
July 8, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28686807/systematic-review-and-meta-analysis-of-non-invasive-prenatal-dna-testing-for-trisomy-21-implications-for-implementation-in-china
#17
Jiajie Jin, Junwen Yang, Yingyao Chen, Jiayan Huang
OBJECTIVES: To systematically review clinical validation studies of MPS technology in prenatal screening for trisomy 21 and to explore the potential implementation strategies in China compared with those in developing countries. METHODS: Searches of the Cochrane Library, Medline, EMBASE, Web of Science, Biosis Previews and three major Chinese databases were performed to identify all the peer-reviewed articles published between January 1st, 2011 and October 15th, 2016...
July 7, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28686357/homozygous-null-variant-in-cradd-encoding-an-adaptor-protein-that-mediates-apoptosis-is-associated-with-lissencephaly
#18
Tamar Harel, Nuphar Hacohen, Avraham Shaag, Moshe Gomori, Amihood Singer, Orly Elpeleg, Vardiella Meiner
Lissencephaly is a severe malformation of cortical development, most often attributed to abnormalities in neuronal migration. It is associated with a severe prognosis including developmental delay, intellectual disability, and seizures. Lissencephaly can be reliably diagnosed during late gestation by neurosonography or fetal magnetic resonance imaging (MRI). We report two sibling male fetuses who were diagnosed with delayed cortical sulcation highly suggestive of lissencephaly during late pregnancy. After receiving genetic counseling, the parents elected to terminate the pregnancies based on the neuroradiological findings and the associated severe prognosis...
July 7, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28686331/neural-tube-defects-in-waardenburg-syndrome-a-case-report-and-review-of-the-literature
#19
Joseph Hart, Kalpana Miriyala
Waardenburg syndrome type 1 (WS1) is an autosomal dominant genetic condition characterized by sensorineural deafness and pigment abnormalities, and is caused by variants in the PAX3 homeodomain. PAX3 variants have been associated with severe neural tube defects in mice and humans, but the frequency and clinical manifestations of this symptom remain largely unexplored in humans. Consequently, the role of PAX3 in human neural tube formation remains a study of interest, for clinical as well as research purposes...
July 7, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28685323/microglia-contribute-to-normal-myelinogenesis-and-to-oligodendrocyte-progenitor-maintenance-during-adulthood
#20
Nora Hagemeyer, Klara-Maria Hanft, Maria-Anna Akriditou, Nicole Unger, Eun S Park, E Richard Stanley, Ori Staszewski, Leda Dimou, Marco Prinz
Whereas microglia involvement in virtually all brain diseases is well accepted their role in the control of homeostasis in the central nervous system (CNS) is mainly thought to be the maintenance of neuronal function through the formation, refinement, and monitoring of synapses in both the developing and adult brain. Although the prenatal origin as well as the neuron-centered function of cortical microglia has recently been elucidated, much less is known about a distinct amoeboid microglia population formerly described as the "fountain of microglia" that appears only postnatally in myelinated regions such as corpus callosum and cerebellum...
July 6, 2017: Acta Neuropathologica
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