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https://www.readbyqxmd.com/read/28944967/risk-for-chromosomal-aberrations-in-apparently-isolated-intra-uterine-growth-restriction-a-systematic-review
#1
REVIEW
Lena Sagi-Dain, Amir Peleg, Shlomi Sagi
OBJECTIVE: To perform a systematic review examining the risk of chromosomal aberrations in apparently isolated intra-uterine growth restriction (IUGR). METHODS: Search was conducted by research librarian in five databases. By independent screening of 2894 references, two investigators selected original studies examining the risk of chromosomal aberrations in apparently isolated IUGR diagnosed at the second and third trimesters using ultrasound. We excluded studies describing IUGR combined with additional fetal anomalies detected by ultrasound and those where fetuses with structural anomalies or aneuploidy were not reported...
September 25, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28944830/application-of-the-amniotic-fluid-metabolome-to-the-study-of-fetal-malformations-using-down-syndrome-as-a-specific-model
#2
Jun Huang, Jinhua Mo, Guili Zhao, Qiyin Lin, Guanhui Wei, Weinan Deng, Dunjin Chen, Bolan Yu
Although monitoring and diagnosis of fetal diseases in utero remains a challenge, metabolomics may provide an additional tool to study the etiology and pathophysiology of fetal diseases at a functional level. In order to explore specific markers of fetal disease, metabolites were analyzed in two separate sets of experiments using amniotic fluid from fetuses with Down syndrome (DS) as a model. Both sets included 10‑15 pairs of controls and cases, and amniotic fluid samples were processed separately; metabolomic fingerprinting was then conducted using UPLC‑MS...
September 18, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944474/altered-neural-oscillations-during-multisensory-integration-in-adolescents-with-fetal-alcohol-spectrum-disorder
#3
Alfredo D Bolaños, Brian A Coffman, Felicha T Candelaria-Cook, Piyadasa Kodituwakku, Julia M Stephen
BACKGROUND: Children with fetal alcohol spectrum disorder (FASD), who were exposed to alcohol in utero, display a broad range of sensory, cognitive, and behavioral deficits, which are broadly theorized to be rooted in altered brain function and structure. Based on the role of neural oscillations in multisensory integration from past studies, we hypothesized that adolescents with FASD would show a decrease in oscillatory power during event-related gamma oscillatory activity (30-100Hz), when compared to typically-developing healthy controls (HC), and that such decrease in oscillatory power would predict behavioral performance...
September 25, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28944222/fetal-heart-sounds-detection-using-wavelet-transform-and-fractal-dimension
#4
Elisavet Koutsiana, Leontios J Hadjileontiadis, Ioanna Chouvarda, Ahsan H Khandoker
Phonocardiography is a non-invasive technique for the detection of fetal heart sounds (fHSs). In this study, analysis of fetal phonocardiograph (fPCG) signals, in order to achieve fetal heartbeat segmentation, is proposed. The proposed approach (namely WT-FD) is a wavelet transform (WT)-based method that combines fractal dimension (FD) analysis in the WT domain for the extraction of fHSs from the underlying noise. Its adoption in this field stems from its successful use in the fields of lung and bowel sounds de-noising analysis...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/28941590/method-performance-and-clinical-workflow-outcomes-associated-with-meconium-and-umbilical-cord-toxicology-testing
#5
Ruth M Labardee, Jaime R Swartzwelder, Karen E Gebhardt, Justine A Pardi, Anna C Dawsey, R Brent Dixon, Steven W Cotten
OBJECTIVE: Neonatal abstinence syndrome (NAS) is a rising concern with unknown long-term effects. It is apparent that higher cost of care, impact on the community and reduced quality of life are associated with similar etiologies (e.g., fetal alcohol syndrome). Detection of drug exposure in utero allows for earlier intervention to potentially reduce undesired outcomes. Umbilical cord tissue (UCT) has been documented as a readily accessible specimen for detection of drug exposure and has emerged as an alternative specimen to meconium...
September 20, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28940870/assessment-of-cerebral-perfusion-with-contrast-enhanced-ultrasound-during-constriction-of-the-neck-mimicking-malposition-of-the-bd-odon-device%C3%A2-a-study-in-newborn-piglets
#6
C de Lange, O D Saugstad, R Solberg
OBJECTIVE: The BD Odon Device™ is a new instrument for operative vaginal birth with potential for preventing maternal, fetal and newborn morbidity/mortality during a complicated second stage of labour. The device is a plastic sleeve with an air chamber inflated around the baby's head which is gently pulled through the birth canal. The aim was to monitor changes in cerebral circulation during constriction of the neck to evaluate a risk of potential malposition of the device. DESIGN: Randomised prospective study...
September 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28938125/selective-immuno-modulatory-effect-of-prolactin-upon-pro-inflammatory-response-in-human-fetal-membranes
#7
Pilar Flores-Espinosa, Eduardo Preciado-Martínez, Araceli Mejía-Salvador, Gabriela Sedano-González, Luisa Bermejo-Martínez, Adalberto Parra-Covarruvias, Guadalupe Estrada-Gutiérrez, Rodrigo Vega-Sánchez, Isabel Méndez, Braulio Quesada-Reyna, Andrea Olmos-Ortiz, Veronica Zaga-Clavellina
During pregnancy, prolactin (PRL) is a neuro-immuno-cytokine that contributes actively to the crosstalk between the immune and endocrine systems and, thus, to the creation of an immune-privileged milieu. This work aims to analyze the capacity of PRL to modulate the synthesis and secretion of pro-inflammatory markers associated with labor. Studies were conducted using human fetal membranes at term mounted in a model of two independent chambers. The choriodecidual region was stimulated with 500-ng/mL lipopolysaccharide (LPS), and the amnion and choriodecidual region were co-simulated with different concentrations of PRL that can arise during pregnancy: 250, 500, 1000, and 4000ng/mL...
September 14, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28937575/committee-opinion-no-723-guidelines-for-diagnostic-imaging-during-pregnancy-and-lactation
#8
(no author information available yet)
Imaging studies are important adjuncts in the diagnostic evaluation of acute and chronic conditions. However, confusion about the safety of these modalities for pregnant and lactating women and their infants often results in unnecessary avoidance of useful diagnostic tests or the unnecessary interruption of breastfeeding. Ultrasonography and magnetic resonance imaging are not associated with risk and are the imaging techniques of choice for the pregnant patient, but they should be used prudently and only when use is expected to answer a relevant clinical question or otherwise provide medical benefit to the patient...
October 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28937570/committee-opinion-no-723-summary-guidelines-for-diagnostic-imaging-during-pregnancy-and-lactation
#9
(no author information available yet)
Imaging studies are important adjuncts in the diagnostic evaluation of acute and chronic conditions. However, confusion about the safety of these modalities for pregnant and lactating women and their infants often results in unnecessary avoidance of useful diagnostic tests or the unnecessary interruption of breastfeeding. Ultrasonography and magnetic resonance imaging are not associated with risk and are the imaging techniques of choice for the pregnant patient, but they should be used prudently and only when use is expected to answer a relevant clinical question or otherwise provide medical benefit to the patient...
October 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28936585/understanding-intestinal-glucose-transporter-expression-in-obese-compared-to-non-obese-subjects
#10
Rebecca A Deal, Yueming Tang, Reid Fletcher, Alfonso Torquati, Philip Omotosho
INTRODUCTION: The impact of Roux-en-Y gastric bypass (RYGB) on weight loss and co-morbid disease resolution is well established. However, the mechanisms underlying the procedure remain incompletely understood. Intestinal remodeling involving glucose transporters (GLUTs) may play a crucial role. Rat studies have demonstrated morphological adaptation of GLUTs within adipose and intestinal cells in association with the reprogramming of glucose metabolism. There is a limited understanding of the variations in expression amongst GLUT family receptors in the human intestine...
September 21, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28935613/maternal-exposure-of-balb-c-mice-to-indoor-no2-and-allergic-asthma-syndrome-in-offspring-at-adulthood-with-evaluation-of-dna-methylation-associated-th2-polarization
#11
Huifeng Yue, Wei Yan, Xiaotong Ji, Rui Gao, Juan Ma, Ziyu Rao, Guangke Li, Nan Sang
BACKGROUND: Fetal stress has been proposed to be associated with diseases in both children and adults. Epidemiological studies suggest that maternal exposure to nitrogen dioxide (NO2) contributes to increased morbidity and mortality of offspring with allergic asthma later in life. OBJECTIVES: We aimed to test whether maternal NO2 exposure causes allergic asthma-related consequences in offspring absent any subsequent lung provocation and whether this exposure enhances the likelihood of developing allergic asthma or the intensity of developed allergic airway disease following postnatal allergic sensitization and challenge...
September 13, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28935498/are-in-vivo-and-in-vitro-assessments-of-comparative-and-combined-toxicity-of-the-same-metallic-nanoparticles-compatible-or-contradictory-or-both-a-juxtaposition-of-data-obtained-in-respective-experiments-with-nio-and-mn3o4-nanoparticles
#12
Ilzira Minigalieva, Tatiana Bushueva, Eleonore Fröhlich, Claudia Meindl, Kristin Öhlinger, Vladimir Panov, Anatoly Varaksin, Vladimir Shur, Ekaterina Shishkina, Vladimir Gurvich, Boris Katsnelson
Comparative and combined damaging effects of NiO and Mn3O4 nanoparticles were estimated on cultures of several established human cell lines. The cytotoxicity indices used were: (a) reduction in cellular dehydrogenase activity, (b) decrease in the ATP-content, (c) for SH-SY5Y cells also decrease in the tyrosine hydroxylase content. The combined cytotoxicity was modeled using the Response Surface Methodology. When assessing the stability of metal oxide nanoparticles (MeO-NPs) in cultural media used by us, we found that the addition of the fetal bovine serum (FBS) to them renders NiO-NPs and, to even greater extent, Mn3O4-NPs exponentially slow soluble while without FBS their dissolution was virtually undetectable...
September 18, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28935434/diagnosis-of-venous-thromboembolism-in-pregnancy
#13
Wee-Shian Chan
The diagnosis of deep vein thrombosis (DVT) and pulmonary embolism (PE) during pregnancy still relies on objective imaging. Ancillary testing such as clinical prediction rules and D-dimer testing may have a role in excluding both DVT and PE in these pregnant patients even as we await results from prospective management studies. The anatomical distribution of DVT in pregnancy differs from those in non-pregnant patient with a greater propensity for proximal iliac vein thrombosis. Using leg ultrasonography with compression maneuvers from the femoral vein to popliteal vein and doppler assessment of the iliac vein in a single examination, appears adequate in most pregnant women with suspected DVT, in excluding DVT...
September 5, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28932678/precise-protein-photolithography-p-3-high-performance-biopatterning-using-silk-fibroin-light-chain-as-the-resist
#14
Wanpeng Liu, Zhitao Zhou, Shaoqing Zhang, Zhifeng Shi, Justin Tabarini, Woonsoo Lee, Yeshun Zhang, S N Gilbert Corder, Xinxin Li, Fei Dong, Liang Cheng, Mengkun Liu, David L Kaplan, Fiorenzo G Omenetto, Guozheng Zhang, Ying Mao, Tiger H Tao
Precise patterning of biomaterials has widespread applications, including drug release, degradable implants, tissue engineering, and regenerative medicine. Patterning of protein-based microstructures using UV-photolithography has been demonstrated using protein as the resist material. The Achilles heel of existing protein-based biophotoresists is the inevitable wide molecular weight distribution during the protein extraction/regeneration process, hindering their practical uses in the semiconductor industry where reliability and repeatability are paramount...
September 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28932228/pertussis-maternal-immunization-narrowing-the-knowledge-gaps-on-the-duration-of-transferred-protective-immunity-and-on-vaccination-frequency
#15
María Emilia Gaillard, Daniela Bottero, María Eugenia Zurita, Francisco Carriquiriborde, Pablo Martin Aispuro, Erika Bartel, David Sabater-Martínez, María Sol Bravo, Celina Castuma, Daniela Flavia Hozbor
Maternal safety through pertussis vaccination and subsequent maternal-fetal-antibody transfer are well documented, but information on infant protection from pertussis by such antibodies and by subsequent vaccinations is scarce. Since mice are used extensively for maternal-vaccination studies, we adopted that model to narrow those gaps in our understanding of maternal pertussis immunization. Accordingly, we vaccinated female mice with commercial acellular pertussis (aP) vaccine and measured offspring protection against Bordetella pertussis challenge and specific-antibody levels with or without revaccination...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28929945/innovative-pcr-without-dna-extraction-for-african-sickle-cell-disease-diagnosis
#16
L Detemmerman, S Olivier, V Bours, F Boemer
OBJECTIVES: Hemoglobin (Hb) disorders consist of thalassemia and Hb structural variants, of which the major forms are associated with severe anemia and/or vascular occlusion. Current diagnostic techniques are highly accurate and mostly based on isoelectric focusing, high-performance liquid chromatography or mass spectrometry, which often require advanced laboratory equipment. In sub-Saharan Africa, the Hb disorders are mainly associated to the pathological variants hemoglobin S (HbS) and HbC...
September 20, 2017: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/28928552/comparative-efficacy-of-minimal-concentration-of-racemic-bupivacaine-0-0625-with-fentanyl-and-ropivacaine-0-1-with-fentanyl-for-epidural-labor-analgesia
#17
T N Chethanananda, M R Shashank, N Madhu, J Achyutha, Karna Venkata Siva Kumar
BACKGROUND AND AIMS: This study aims to compare the minimum effective concentration of local anesthetic (LA) bupivacaine and ropivacaine with highly lipid soluble opioids fentanyl for providing optimal labor epidural analgesia. SETTINGS AND DESIGN: The objective of this study was to evaluate the efficacy of racemic bupivacaine 0.0625% and 0.1% of ropivacaine both mixed with 2 μg/ml of fentanyl for epidural labor analgesia in parturients with spontaneous labor and normal fetal heart rate tracing...
July 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28925570/first-trimester-screening-based-on-ultrasound-and-cfdna-vs-first-trimester-combined-screening-a-randomized-controlled-study
#18
Karl Oliver Kagan, Fabrina Sroka, Jiri Sonek, Harald Abele, Kai Lüthgens, Maximilian Schmid, Philipp Wagner, Sara Brucker, Diethelm Wallwiener, Markus Hoopmann
OBJECTIVE: Prospective randomized trial to compare the performance of first trimester combined screening (FTCS) with an approach that uses the combination of a detailed ultrasound examination and cfDNA analysis. METHODS: Pregnant women with a normal first-trimester ultrasound examination at 11 to 13 weeks' gestation (fetal NT ≤3.5 mm and no fetal defects) were randomized into two groups. In the first group, the risk of aneuploidy was assessed using FTCS based on the most recent FMF UK algorithm...
September 19, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28923940/defective-decidualization-during-and-after-severe-preeclampsia-reveals-a-possible-maternal-contribution-to-the-etiology
#19
Tamara Garrido-Gomez, Francisco Dominguez, Alicia Quiñonero, Patricia Diaz-Gimeno, Mirhan Kapidzic, Matthew Gormley, Katherine Ona, Pablo Padilla-Iserte, Michael McMaster, Olga Genbacev, Alfredo Perales, Susan J Fisher, Carlos Simón
In preeclampsia (PE), cytotrophoblast (CTB) invasion of the uterus and spiral arteries is often shallow. Thus, the placenta's role has been a focus. In this study, we tested the hypothesis that decidual defects are an important determinant of the placental phenotype. We isolated human endometrial stromal cells from nonpregnant donors with a previous pregnancy that was complicated by severe PE (sPE). Compared with control cells, they failed to decidualize in vitro as demonstrated by morphological criteria and the analysis of stage-specific antigens (i...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28923684/ikk%C3%AE-activation-in-the-fetal-lung-mesenchyme-alters-lung-vascular-development-but-not-airway-morphogenesis
#20
Alyssa M McCoy, Jennifer L Herington, Ashley N Stouch, Anamika B Mukherjee, Omar Lakhdari, Timothy S Blackwell, Lawrence S Prince
In the immature lung, inflammation and injury disrupt epithelial-mesenchymal interactions required for normal development. Innate immune signaling and NF-κB activation disrupt the normal expression of multiple mesenchymal genes playing key roles in airway branching and alveolar formation. To test the role of the NF-κB pathway specifically in lung mesenchyme, we utilized the mesenchymal Twist2-Cre to drive expression of a constitutively active IKKβ mutant (IKKβca) in developing mice. Embryonic Twist2-IKKβca mice were generated in expected numbers and appeared grossly normal...
September 15, 2017: American Journal of Pathology
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