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https://www.readbyqxmd.com/read/28440755/dysfunctional-immunometabolic-effects-of-vitamin-d-deficiency-increased-cardiometabolic-risk-potential-epidemiological-alert-in-america
#1
Martin Rosas-Peralta, Michael F Holick, Gabriela Borrayo-Sánchez, Alejandra Madrid-Miller, Erick Ramírez-Árias, Efrain Arizmendi-Uribe
Vitamin D deficiency is a serious public health problem worldwide that affects not only skeletal health, but also a wide range of acute and chronic diseases. However, there is still skepticism because of the lack of randomized, controlled trials to support association studies on the benefits of vitamin D for non-skeletal health. This review was based on articles published during the 1980-2015 obtained from the Cochrane Central Register of controlled trials, MEDLINE and PubMed, and focuses on recent challenges with regard to the definition of vitamin D deficiency and how to achieve optimal serum 25-hydroxyvitamin D levels from dietary sources, supplements, and sun exposure...
March 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28440316/modest-and-severe-maternal-iron-deficiency-in-pregnancy-are-associated-with-fetal-anaemia-and-organ-specific-hypoxia-in-rats
#2
Andrew G Woodman, Alison S Care, Yael Mansour, Stephana J Cherak, Sareh Panahi, Ferrante S Gragasin, Stephane L Bourque
Prenatal iron-deficiency (ID) is known to alter fetal developmental trajectories, which predisposes the offspring to chronic disease in later life, although the underlying mechanisms remain unclear. Here, we sought to determine whether varying degrees of maternal anaemia could induce organ-specific patterns of hypoxia in the fetuses. Pregnant female Sprague Dawley rats were fed iron-restricted or iron-replete diets to induce a state of moderate (M-ID) or severe ID (S-ID) alongside respective controls. Ultrasound biomicroscopy was performed on gestational day (GD)20 to assess uterine and umbilical artery blood flow patterns...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28439668/urinary-podocalyxin-as-a-possible-novel-marker-of-intrauterine-nephrogenesis-and-extrauterine-podocyte-injury
#3
Taihei Hayashi, Shuko Tokuriki, Takashi Okuno, Genrei Ohta, Aiko Igarashi, Yusei Ohshima
BACKGROUND: The number of nephrons at birth is determined during fetal development and is modulated thereafter by postnatal podocyte injury. Hyperfiltration, caused by a reduced number of nephrons, is a risk factor for chronic kidney disease. It is therefore important to monitor the formation of nephrons. METHODS: Urine samples were collected from infants within 1-2 days of birth, with follow-up sampling for preterm infants at 37-39 weeks of corrected age. Urinary levels of podocalyxin (PCX), β2-microglobulin (β2MG), N-acetyl-ß-D-glucosaminidase (NAG), total protein (TP), microalbumin (mAlb) and creatinine were measured and the relationship between these markers evaluated...
April 25, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28439194/fetal-neonatal-hyperthyroidism-diagnostic-and-therapeutic-approachment
#4
REVIEW
Selim Kurtoğlu, Ahmet Özdemir
Fetal and neonatal hyperthyroidism may occur in mothers with Graves' disease. Fetal thyrotoxicosis manifestation is observed with the transition of TSH receptor stimulating antibodies to the fetus from the 17th-20th weeks of pregnancy and with the fetal TSH receptors becoming responsive after 20 weeks. The diagnosis is confirmed by fetal tachycardia, goiter and bone age advancement in pregnancy and maternal treatment is conducted in accordance. The probability of neonatal hyperthyroidism is high in the babies of mothers that have ongoing antithyroid requirement and higher antibody levels in the last months of pregnancy...
March 2017: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28438602/hyperoxia-exposure-disrupts-adrenomedullin-signaling-in-newborn-mice-implications-for-lung-development-in-premature-infants
#5
Renuka T Menon, Amrit Kumar Shrestha, Binoy Shivanna
Hyperoxia contributes to the development of bronchopulmonary dysplasia (BPD), a chronic lung disease of human infants that is characterized by disrupted lung angiogenesis. Adrenomedullin (AM) is a multifunctional peptide with angiogenic and vasoprotective properties. AM signals via its cognate receptors, calcitonin receptor-like receptor (Calcrl) and receptor activity-modifying protein 2 (RAMP2). Whether hyperoxia affects the pulmonary AM signaling pathway in neonatal mice and whether AM promotes lung angiogenesis in human infants are unknown...
April 21, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28437575/the-24-segment-sphericity-index-a-new-technique-to-evaluate-fetal-cardiac-diastolic-shape
#6
Greggory R DeVore, Berthold Klas, Gary Satou, Mark Sklansky
INTRODUCTION: Because of parallel circulation in the fetus and the differential effect various disease states may have on the shape of the right and left ventricles, this study was conducted to evaluate the Sphericity Index (SI) of 24 transverse segments distributed from the base to the apex of the ventricular chambers. METHODS: Two hundred control fetuses were examined between 20 and 40 weeks of gestation. The displacement of the ventricular endocardium during the cardiac cycle was computed using offline software...
April 24, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28437442/relationship-between-early-onset-severe-intrahepatic-cholestasis-of-pregnancy-and-higher-risk-of-meconium-stained-fluid
#7
Maria C Estiú, Maria A Frailuna, Carla Otero, Marcela Dericco, Catherine Williamson, Jose J G Marin, Rocio I R Macias
BACKGROUND: Intrahepatic cholestasis of pregnancy (ICP) is the commonest gestational liver disease. The risk of adverse fetal outcome has been associated with the severity of maternal hypercholanemia after diagnosis. OBJECTIVE: To investigate whether there is a relationship between the severity and timing of onset of hypercholanemia and the risk of meconium-stained amniotic fluid (MSAF) and adverse neonatal events. STUDY DESIGN: The study included 382 pregnancies complicated by ICP managed at a referral hospital in Buenos Aires (Argentina) between June 2009 and December 2013...
2017: PloS One
https://www.readbyqxmd.com/read/28436632/-localization-of-gestational-age-reference-table-and-its-application-in-prenatal-screening
#8
Linlin Dou, Guohui Yang, Weiming Mo
Objective: To establish a fetal biparietal diameter (BPD)-gestational age formula based on the data of pregnant women from Xiaoshan District of Hangzhou, and to evaluate its application in prenatal screening. Methods: Data of 3500 pregnant women with gestational age between 15 weeks and 19 weeks+6 receiving prenatal screening in Xiaoshan Hospital during May 2014 and May 2015 were collected. BPDs were used to establish a localized BPD-gestational age formula. The localized formula was used to evaluate the prenatal screening risks in 1759 pregnant women with irregular menstrual cycles or uncertain last menstrual period (LMP) in Xiaoshan District, and the results were compared with those calculated using formula in LifeCycle 4...
January 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28436429/human-fetal-heart-specific-coexpression-network-involves-congenital-heart-disease-defect-candidate-genes
#9
Bo Wang, Guoling You, Qihua Fu
Heart development is a complex process requiring dynamic transcriptional regulation. Disturbance of this process will lead to severe developmental defects such as congenital heart disease/defect (CHD). CHD is a group of complex disorder with high genetic heterogeneity, common pathways associated with CHD remains largely unknown. In the manuscript, we focused on the tissue specific genes in human fetal heart samples to explore such pathways. We used the RNA microarray dataset of human fetal tissues from ENCODE project to identify genes with heart tissue specific expression...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28436367/bilateral-obstructing-ureteric-calculi-in-pregnancy-a-rare-cause-of-acute-renal-failure
#10
Todd G Manning, Daniel Christidis, David Wetherell, Ruth Cameron-Jeffs, Nathan Lawrentschuk
Bilateral obstructing ureteric calculi is a rare cause of acute renal failure. Although urolithiasis in later pregnancy is not uncommon, the development of bilateral obstruction secondary to ureteric calculi in the first trimester is rare and poses difficulty to diagnosis and management. Symptoms of diseases and physiological changes associated with pregnancy can obscure diagnosis of urolithiasis and obstructive uropathy. Advances in minimally invasive endourology afford intervention with reduced risk to fetal health...
April 2017: Canadian Journal of Urology
https://www.readbyqxmd.com/read/28435652/stroke-in-a-child-with-hemoglobin-sc-disease-a-case-report-describing-use-of-hydroxyurea-after-transfusion-therapy
#11
Diana Fridlyand, Caroline Wilder, E Leila Jerome Clay, Bruce Gilbert, Betty S Pace
Children with hemoglobin SC (HbSC) disease suffer a significant incidence of silent cerebral infarcts but stroke is rare. A 2-year-old African American boy with HbSC disease presented with focal neurologic deficits associated with magnetic resonance imaging evidence of cerebral infarction with vascular abnormalities. After the acute episode he was treated with monthly transfusions and subsequently transitioned to hydroxyurea therapy. The benefits of hydroxyurea as a fetal hemoglobin inducer in HbSC disease, to ameliorate clinical symptoms are supported by retrospective studies...
March 22, 2017: Pediatric Reports
https://www.readbyqxmd.com/read/28433086/intergenerational-transmission-of-maternal-childhood-maltreatment-exposure-implications-for-fetal-brain-development
#12
REVIEW
Claudia Buss, Sonja Entringer, Nora K Moog, Philipp Toepfer, Damien A Fair, Hyagriv N Simhan, Christine M Heim, Pathik D Wadhwa
OBJECTIVE: Growing evidence suggests the deleterious consequences of exposure to childhood maltreatment (CM) not only might endure over the exposed individual's lifespan but also might be transmitted across generations. The time windows, mechanisms, and targets of such intergenerational transmission are poorly understood. The prevailing paradigm posits that mother-to-child transmission of the effects of maternal CM likely occurs after her child's birth. The authors seek to extend this paradigm and advance a transdisciplinary framework that integrates the concepts of biological embedding of life experiences and fetal origins of health and disease risk...
May 2017: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28432664/human-perinatal-immunity-in-physiological-conditions-and-during-infection
#13
REVIEW
Gijs T J van Well, Leonie A Daalderop, Tim Wolfs, Boris W Kramer
The intrauterine environment was long considered sterile. However, several infectious threats are already present during fetal life. This review focuses on the postnatal immunological consequences of prenatal exposure to microorganisms and related inflammatory stimuli. Both the innate and adaptive immune systems of the fetus and neonate are immature, which makes them highly susceptible to infections. There is good evidence that prenatal infections are a primary cause of preterm births. Additionally, the association between antenatal inflammation and adverse neonatal outcomes has been well established...
December 2017: Molecular and Cellular Pediatrics
https://www.readbyqxmd.com/read/28431792/changes-to-histone-modifications-following-prenatal-alcohol-exposure-an-emerging-picture
#14
REVIEW
Eric J Chater-Diehl, Benjamin I Laufer, Shiva M Singh
Epigenetic mechanisms are important for facilitating gene-environment interactions in many disease etiologies, including Fetal Alcohol Spectrum Disorders (FASD). Extensive research into the role of DNA methylation and miRNAs in animal models has illuminated the complex role of these mechanisms in FASD. In contrast, histone modifications have not been as well researched, due in part to being less stable than DNA methylation and less well-characterized in disease. It is now apparent that even changes in transient marks can have profound effects if they alter developmental trajectories...
February 4, 2017: Alcohol
https://www.readbyqxmd.com/read/28431283/zika-virus-infection-of-adult-and-fetal-stat2-knock-out-hamsters
#15
Venkatraman Siddharthan, Arnaud J Van Wettere, Rong Li, Jinxin Miao, Zhongde Wang, John D Morrey, Justin G Julander
Zika virus (ZIKV) infection was investigated in adult and fetal STAT2 knock-out (KO) hamsters. Subcutaneous injection of ZIKV of adults resulted in morbidity, mortality, and infection of the uterus, placenta, brain, spinal cord, and testicles, thus providing an opportunity to evaluate congenital ZIKV infection in a second rodent species besides mice. ZIKV-infected cells with morphologies of Sertoli cells and spermatogonia were observed in the testes, which may have implications for sexual transmission and male sterility...
April 18, 2017: Virology
https://www.readbyqxmd.com/read/28430328/outcome-of-various-hydrophobic-acrylic-intraocular-lens-implantations-in-children-with-congenital-cataract
#16
Jaspreet Sukhija, Savleen Kaur, Jagat Ram, Sonam Yangzes, Siddharth Madan, Jitender Jinagal
PURPOSE: To evaluate performance of different intraocular lenses (IOLs) after cataract surgery in children aged less than 2 years with regards to rates of visual axis opacification (VAO). METHODS: This was a retrospective chart review of children <2 years of age undergoing cataract surgery with primary posterior capsulotomy, anterior vitrectomy, and IOL over a period of 5 years with minimum follow-up of 1 year at a tertiary care institute. Children with microphthalmos, persistent fetal vasculature, traumatic cataract, aphakia, secondary IOLs, or any other coexisting ocular disease were excluded...
April 13, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28430034/um-chor1-establishment-and-characterization-of-the-first-validated-clival-chordoma-cell-line
#17
John Henry Owen, Christine M Komarck, Anthony C Wang, Waleed M Abuzeid, Richard F Keep, Erin L McKean, Stephen Sullivan, Xing Fan, Mark E P Prince
OBJECTIVE Chordomas are rare malignant tumors thought to arise from remnants of the notochord. They can be located anywhere along the axial skeleton but are most commonly found in the clival and sacrococcygeal regions, where the notochord regresses during fetal development. Chordomas are resistant to many current therapies, leaving surgery as the primary method of treatment. Cancer cell lines have been useful for developing new cancer treatments in a laboratory setting that can then be transferred to the clinic, but there are only 4 validated chordoma cell lines available...
April 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28429721/a-mouse-tissue-transcription-factor-atlas
#18
Quan Zhou, Mingwei Liu, Xia Xia, Tongqing Gong, Jinwen Feng, Wanlin Liu, Yang Liu, Bei Zhen, Yi Wang, Chen Ding, Jun Qin
Transcription factors (TFs) drive various biological processes ranging from embryonic development to carcinogenesis. Here, we employ a recently developed concatenated tandem array of consensus TF response elements (catTFRE) approach to profile the activated TFs in 24 adult and 8 fetal mouse tissues on proteome scale. A total of 941 TFs are quantitatively identified, representing over 60% of the TFs in the mouse genome. Using an integrated omics approach, we present a TF network in the major organs of the mouse, allowing data mining and generating knowledge to elucidate the roles of TFs in various biological processes, including tissue type maintenance and determining the general features of a physiological system...
April 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28428049/stem-cells-for-retinal-disease-a-perspective-on-the-promise-and-perils
#19
Rajesh C Rao, Vaidehi S Dedania, Mark W Johnson
PURPOSE: To summarize key concepts, and early safety and efficacy signals from clinical trials for stem/progenitor cell-based interventions for retinal disease. DESIGN: Interpretive essay. METHODS: Review and synthesis of selected recent reports of stem/progenitor cell-based approaches for retinal disease, with interpretation and perspective. RESULTS: Stem/progenitor cell-based interventions represent a novel class of potential therapies for retinal diseases, such as age-related macular degeneration, inherited retinal dystrophies, and others...
April 17, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28426964/ipsc-derived-human-microglia-like-cells-to-study-neurological-diseases
#20
Edsel M Abud, Ricardo N Ramirez, Eric S Martinez, Luke M Healy, Cecilia H H Nguyen, Sean A Newman, Andriy V Yeromin, Vanessa M Scarfone, Samuel E Marsh, Cristhian Fimbres, Chad A Caraway, Gianna M Fote, Abdullah M Madany, Anshu Agrawal, Rakez Kayed, Karen H Gylys, Michael D Cahalan, Brian J Cummings, Jack P Antel, Ali Mortazavi, Monica J Carson, Wayne W Poon, Mathew Blurton-Jones
Microglia play critical roles in brain development, homeostasis, and neurological disorders. Here, we report that human microglial-like cells (iMGLs) can be differentiated from iPSCs to study their function in neurological diseases, like Alzheimer's disease (AD). We find that iMGLs develop in vitro similarly to microglia in vivo, and whole-transcriptome analysis demonstrates that they are highly similar to cultured adult and fetal human microglia. Functional assessment of iMGLs reveals that they secrete cytokines in response to inflammatory stimuli, migrate and undergo calcium transients, and robustly phagocytose CNS substrates...
April 19, 2017: Neuron
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