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https://www.readbyqxmd.com/read/29334402/noninvasive-reconstruction-of-placental-methylome-from-maternal-plasma-dna-potential-for-prenatal-testing-and-monitoring
#1
Kun Sun, Fiona M F Lun, Tak Y Leung, Rossa W K Chiu, Y M Dennis Lo, Hao Sun
OBJECTIVE: During human pregnancy, the DNA methylation of placental tissue is highly relevant to the normal growth and development of the fetus, therefore methylomic analysis of the placental tissue possesses high research and clinical value in prenatal testing and monitoring. Thus our aim is to develop an approach for reconstruction of the placental methylome, which should be completely noninvasive and achieve high accuracy and resolution. RESULTS: We propose a novel size-based algorithm, FEMER, to noninvasively reconstruct the placental methylome by genomewide bisulfite sequencing and size-based analysis of maternal plasma DNA...
January 15, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29333049/marine-derived-fungi-extracts-enhance-the-cytotoxic-activity-of-doxorubicin-in-nonsmall-cell-lung-cancer-cells-a459
#2
Bruno Castro-Carvalho, Alice A Ramos, Maria Prata-Sena, Fernanda Malhão, Márcia Moreira, Daniela Gargiulo, Tida Dethoup, Suradet Buttachon, Anake Kijjoa, Eduardo Rocha
Background: Drug resistance is a major concern in the current chemotherapeutic approaches and the combination with natural compounds may enhance the cytotoxic effects of the anticancer drugs. Therefore, this study evaluated the cytotoxicity of crude ethyl extracts of six marine-derived fungi - Neosartorya tsunodae KUFC 9213 (E1), Neosartorya laciniosa KUFC 7896 (E2), Neosartorya fischeri KUFC 6344 (E3), Aspergillus similanensis KUFA 0013 (E4), Neosartorya paulistensis KUFC 7894 (E5), and Talaromyces trachyspermum KUFC 0021 (E6) - when combined with doxorubicin (Dox), in seven human cancer cell lines...
December 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/29328469/human-cytomegalovirus-ul141-protein-interacts-with-celf5-and-affects-viral-dna-replication
#3
Fei Zou, Zhi-Tao Lu, Shuang Wang, Si Wu, Ying-Ying Wu, Zheng-Rong Sun
Human cytomegalovirus (HCMV) infection is the primary viral cause of congenital abnormalities and mental retardation in newborns. The HCMV UL141‑encoded glycoprotein has been previously revealed to inhibit the cell‑surface expression of cluster of differentiation (CD)155, CD122, tumor necrosis factor‑related apoptosis‑inducing ligand death (TRAIL)‑receptor 1 (R1) and TRAIL‑receptor 2 (R2), thus protecting virally‑infected cells by allowing them to escape natural killer cell‑mediated cytotoxicity...
January 10, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29327352/ultrasound-findings-provide-clues-to-investigate-founder-mutations-expressed-as-runs-of-homozygosity-in-chromosomal-microarray-studies
#4
Hagit Daum, Israela Lerer, Ayala Frumkin, Daniel Rosenak, Nili Yanai, Shay Porat, Simcha Yagel, Vardiella Meiner
OBJECTIVES: Chromosomal microarray (CMA) analysis is effectively applied prenatally to detect copy number changes. SNP probes included in the microarray platform can detect regions of excessive homozygosity (ROH) and identical-by-descent genomic stretches. The utility of the latter as part of prenatal diagnosis is not well established. Recessive founder mutations are well recognized within distinct ethnic groups. Combining these data with prenatal sonography provides accurate focused molecular diagnoses quickly...
January 11, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29321036/maternal-engineered-nanomaterial-inhalation-during-gestation-alters-the-fetal-transcriptome
#5
P A Stapleton, Q A Hathaway, C E Nichols, A B Abukabda, M V Pinti, D L Shepherd, C R McBride, J Yi, V C Castranova, J M Hollander, T R Nurkiewicz
BACKGROUND: The integration of engineered nanomaterials (ENM) is well-established and widespread in clinical, commercial, and domestic applications. Cardiovascular dysfunctions have been reported in adult populations after exposure to a variety of ENM. As the diversity of these exposures continues to increase, the fetal ramifications of maternal exposures have yet to be determined. We, and others, have explored the consequences of ENM inhalation during gestation and identified many cardiovascular and metabolic outcomes in the F1 generation...
January 10, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29318732/association-between-fetal-fraction-on-cell-free-dna-testing-and-first-trimester-markers-for-pre-eclampsia
#6
Daniel L Rolnik, Fabricio da Silva Costa, Timothy J Lee, Maximilian Schmid, Andrew C McLennan
AIMS: To evaluate the association of fetal fraction on cell-free DNA (cfDNA) testing with first trimester markers for pre-eclampsia and to investigate a possible association of low fetal fraction with increased risk for pre-eclampsia (PE) and fetal growth restriction (FGR). METHODS: This was a retrospective cohort study including all women with singleton pregnancies who had risk calculation for PE and FGR between 11+0 and 13+6 weeks' gestation and also decided to have cfDNA as a primary or secondary screening test for chromosomal abnormalities at any gestational age in two Fetal Medicine clinics in Sydney and Melbourne, Australia, between March 2013 and May 2017...
January 10, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29317881/neospora-caninum-infection-during-the-first-gestation-of-holstein-heifers-that-consume-food-contaminated-naturally-with-zearalenone-under-field-conditions
#7
Carlos Cruz-Vázquez, Juan Vital-Gutiérrez, Leticia Medina-Esparza, Luis Ortega-Mora, Arturo Valdivia-Flores, Teódulo Quezada-Tristán, Agustín Orihuela-Trujillo
Background: This work studied the natural infection of Neospora caninum during the first gestation of heifers in a dairy farm in animals consuming a ration co ntaminated naturally with Zearalenone (ZEA), and to find out effect of mycotoxin in the levels of estrogen (E) and progesterone (P4) and that's relation to the infection to N. caninum and in the abortions. Methods: The study was conducted in a dairy farm located in El Llano municipality, in Aguascalientes, Mexico, in 2013...
October 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/29317692/haplotype-based-noninvasive-prenatal-diagnosis-of-hyperphenylalaninemia-through-targeted-sequencing-of-maternal-plasma
#8
Jun Ye, Chao Chen, Yuan Yuan, Lianshu Han, Yaoshen Wang, Wenjuan Qiu, Huiwen Zhang, Asan, Xuefan Gu
Here we developed a haplotype-based noninvasive prenatal diagnosis method for hyperphenylalaninemia (HPA) and demonstrated its accuracy and feasibility during early pregnancy. Capture sequencing was performed on genomic DNA from parents and probands using customized hybridization probes targeting highly heterozygous single-nucleotide polymorphisms located within the 1 M region flanking phenylalanine hydroxylase (PAH) and 6-pyruvoyltetrahydropterin (PTS) and its coding region to determine the parental haplotypes and linkage to pathogenic mutations...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29317129/introduction-reproductive-genetics-bringing-clarity-to-a-foreign-language
#9
Anthony R Gregg, Steven R Lindheim
Genomic based technologies are firmly implanted into clinical medicine. They arrived rapidly and their uses continue to evolve in both the pre and postconception periods. These technologies migrated from the prenatal arena into the domain of the reproductive endocrinology and infertility specialists in some cases nearly simultaneously (expanded carrier screening), in others more slowly (chromosome microarrays), and for some technologies the ethical and cost concerns have resulted in a slower diffusion across the disciplines...
January 6, 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29314147/cfdna-screening-and-diagnosis-of-monogenic-disorders-where-are-we-heading
#10
Eunice Ka Long Chiu, Winnie Wai In Hui, Rossa Wai Kwun Chiu
Cell-free fetal DNA analysis for non-invasive prenatal screening of fetal chromosomal aneuploidy has been widely adopted for clinical use. Fetal monogenic diseases have also been shown to be amenable to non-invasive detection by maternal plasma DNA analysis. A number of recent technological developments in this area has increased the level of clinical interest, particularly as one approach does not require customized reagents per mutation. The mutational status of the fetus can be assessed by determining which parental haplotype that fetus has inherited based on the detection of haplotype-associated SNP alleles in maternal plasma...
January 5, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29308692/maternal-obesity-diabetes-during-pregnancy-and-epigenetic-mechanisms-that-influence-the-developmental-origins-of-cardiometabolic-disease-in-the-offspring
#11
Prasoon Agarwal, Taylor S Morriseau, Stephanie M Kereliuk, Christine A Doucette, Brandy A Wicklow, Vernon W Dolinsky
Since 1980, global obesity has doubled, and the incidence of cardiometabolic diseases such as type 2 diabetes and heart disease is also increasing. While genetic susceptibility and adult lifestyle are implicated in these trends, evidence from clinical cohorts, epidemiological studies and animal model experiments support a role for early-life environmental exposures in determining the long-term health of an individual, which has led to the formulation of the Developmental Origins of Health and Disease (DOHaD) theory...
January 8, 2018: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/29305293/beyond-screening-for-chromosomal-abnormalities-advances-in-non-invasive-diagnosis-of-single-gene-disorders-and-fetal-exome-sequencing
#12
REVIEW
Jane Hayward, Lyn S Chitty
Emerging genomic technologies, largely based around next generation sequencing (NGS), are offering new promise for safer prenatal genetic diagnosis. These innovative approaches will improve screening for fetal aneuploidy, allow definitive non-invasive prenatal diagnosis (NIPD) of single gene disorders at an early gestational stage without the need for invasive testing, and improve our ability to detect monogenic disorders as the aetiology of fetal abnormalities. This presents clinicians and scientists with novel challenges as well as opportunities...
January 2, 2018: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29299944/evaluation-of-genotoxic-potential-of-avarol-avarone-and-its-methoxy-and-methylamino-derivatives-in-prokaryotic-and-eukaryotic-test-models
#13
Stoimir Kolarević, Dragana Milovanović, Margareta Kračun-Kolarević, Jovana Kostić, Karolina Sunjog, Rajko Martinović, Jelena Đorđević, Irena Novaković, Dušan Sladić, Branka Vuković-Gačić
In this study, mutagenic and genotoxic potential of anti-tumor compounds avarol, avarone, and its derivatives 3'-methoxyavarone, 4'-(methylamino)avarone and 3'-(methylamino)avarone was evaluated and compared to cytostatics commonly used in chemotherapy (5-fluorouracil, etoposid, and cisplatin). Mutagenic potential of selected hydroquinone and quinones was assessed in prokaryotic model by the SOS/umuC assay in Salmonella typhimurium TA1535/pSK1002. Genotoxic potential was also assessed in eukaryotic models using comet assay in human fetal lung cell line (MRC-5), human adenocarcinoma epithelial cell line (A549), and in human peripheral blood cells (HPBC)...
January 4, 2018: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/29296790/maternal-iamp21-acute-lymphoblastic-leukemia-detected-on-prenatal-cell-free-dna-genetic-screening
#14
Marlise R Luskin, Marie N Discenza, Sarah Rae Easter, Paola Dal Cin, Renius Owen, Bernard Ilagan, Meredith Masiello, Andrew A Lane
cfDNA sequencing for fetal aneuploidy may detect chromosomal abnormalities representative of maternal malignancy.Maternal malignancy must be considered when abnormal cfDNA sequencing for fetal aneuploidy is associated with normal fetal karyotype.
August 22, 2017: Blood Advances
https://www.readbyqxmd.com/read/29286142/2-phenyl-4-quinolone-yt-1-induces-g2-m-phase-arrest-and-an-intrinsic-apoptotic-mechanism-in-human-leukemia-cells
#15
Meng-Wei Lin, Jai-Sing Yang, Chi-Cheng Lu, Chingju Lin, Sheng-Chu Kuo, Fuu-Jen Tsai, Miau-Rong Lee
The present study aimed to investigate the biological effects of the new compound 2‑phenyl‑4‑quinolone (YT‑1) on human leukemia cells. Cell viability was determined by propidium iodide (PI) exclusion method followed by flow cytometry. Our results showed that YT‑1 inhibited the cell viability and resulted in morphologic changes to the U937, HL‑60 and K562 cells, respectively. Among them, U937 cells were the most sensitive cell line. On the contrary, YT‑1 had no cytotoxic effects on human fetal skin fibroblast WS1 cells...
December 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29283404/key-clinical-factors-predicting-adipokine-and-oxidative-stress-marker-concentrations-among-normal-overweight-and-obese-pregnant-women-using-artificial-neural-networks
#16
Mario Solis-Paredes, Guadalupe Estrada-Gutierrez, Otilia Perichart-Perera, Araceli Montoya-Estrada, Mario Guzmán-Huerta, Héctor Borboa-Olivares, Eyerahi Bravo-Flores, Arturo Cardona-Pérez, Veronica Zaga-Clavellina, Ethel Garcia-Latorre, Gabriela Gonzalez-Perez, José Alfredo Hernández-Pérez, Claudine Irles
Maternal obesity has been related to adverse neonatal outcomes and fetal programming. Oxidative stress and adipokines are potential biomarkers in such pregnancies; thus, the measurement of these molecules has been considered critical. Therefore, we developed artificial neural network (ANN) models based on maternal weight status and clinical data to predict reliable maternal blood concentrations of these biomarkers at the end of pregnancy. Adipokines (adiponectin, leptin, and resistin), and DNA, lipid and protein oxidative markers (8-oxo-2'-deoxyguanosine, malondialdehyde and carbonylated proteins, respectively) were assessed in blood of normal weight, overweight and obese women in the third trimester of pregnancy...
December 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29278758/leucine-reduces-the-proliferation-of-mc3t3-e1-cells-through-dna-damage-and-cell-senescence
#17
Raquel da Luz Dias, Bruno Basso, Márcio Vinícius Fagundes Donadio, Francesc Ventura Pujol, Ramón Bartrons, Gabriela Viegas Haute, Rodrigo Benedetti Gassen, Henrique Dias Bregolin, Gabriele Krause, Cassiana Viau, Jenifer Saffi, Fernanda Bordignon Nunes, José Luis Rosa, Jarbas Rodrigues de Oliveira
Leucine (Leu) is an essential branched-chain amino acid, present in dairy products, which has been investigated for its important role in cell signaling. The effects of Leu on several kinds of cells have been studied, altough little is known on its action upon bone cells and cell proliferation. Thus, the aim of this study is to investigate the effects of Leu supplementation on the proliferation of pre-osteoblasts from MC3T3-E1 lineage. MC3T3-E1 cells were kept in Alpha medium supplemented with 10% fetal bovine serum and 1% antibiotic-antimitotic...
December 23, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29275510/bisphenol-a-induces-dsb-atm-p53-signaling-leading-to-cell-cycle-arrest-senescence-autophagy-stress-response-and-estrogen-release-in-human-fetal-lung-fibroblasts
#18
Laziyan Mahemuti, Qixuan Chen, Melanie C Coughlan, Cunye Qiao, Nikolai L Chepelev, Maria Florian, Dillon Dong, Robert G Woodworth, Jin Yan, Xu-Liang Cao, Kylie A Scoggan, Xiaolei Jin, William G Willmore
Experimental and/or epidemiological studies suggest that prenatal exposure to bisphenol A (BPA) may delay fetal lung development and maturation and increase the susceptibility to childhood respiratory disease. However, the underlying mechanisms remain to be elucidated. In our previous study with cultured human fetal lung fibroblasts (HFLF), we demonstrated that 24-h exposure to 1 and 100 µM BPA increased GPR30 protein in the nuclear fraction. Exposure to 100 μM BPA had no effects on cell viability, but increased cytoplasmic expression of ERβ and release of GDF-15, as well as decreased release of IL-6, ET-1, and IP-10 through suppression of NFκB phosphorylation...
December 23, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29274205/arthrogryposis-and-pterygia-as-lethal-end-manifestations-of-genetically-defined-congenital-myopathies
#19
Atif A Ahmed, Priya Skaria, Nicole P Safina, Isabelle Thiffault, Alex Kats, Eugenio Taboada, Sultan Habeebu, Carol Saunders
Arthrogryposis multiplex congenita affects approximately 1 in 3,000 individuals of different ethnic backgrounds and displays an equal incidence in males and females. The underlying mechanism for congenital contracture of the joints is decreased fetal movement during intrauterine development. This disorder is associated with over 400 medical conditions and 350 known genes that display considerable variability in phenotypic expression. In this report, four fetal or perinatal autopsy cases of arthrogryposis were studied by gross morphology, microscopic histopathologic examination, and whole genome sequencing of postmortem DNA...
December 23, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29273403/zika-virus-an-emerging-infectious-disease-with-serious-perinatal-and-neurologic-complications
#20
Thomas B Casale, Michael N Teng, Jamie P Morano, Thomas Unnasch, Charles J Lockwood
Zika virus (ZIKV) is a flavivirus that is primarily transmitted by Aedes aegypti, the mosquito vector also important in the transmission of the flaviviruses responsible for dengue fever, yellow fever and chikungunya. Due to occurrence in the same geographic regions, serological cross-reactivity, and similar, albeit often less severe clinical manifestations as dengue and chikungunya infections, ZIKV infection likely went undetected and/or misdiagnosed for many years. ZIKV is somewhat unique among flaviviruses in its ability to also be transmitted via sexual contact, non-sexual body fluids and perinatally...
December 19, 2017: Journal of Allergy and Clinical Immunology
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