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Fetal neurology

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https://www.readbyqxmd.com/read/28722160/placental-proteomics-reveal-insights-into-fetal-alcohol-spectrum-disorders
#1
Katie L Davis-Anderson, Sebastian Berger, Emilie R Lunde-Young, Vishal D Naik, Heewon Seo, Greg A Johnson, Hanno Steen, Jayanth Ramadoss
Fetal alcohol spectrum disorders (FASD) describe many of the well-known neurodevelopmental deficits afflicting children exposed to alcohol in utero. The effects of alcohol on the maternal-fetal interface, especially the placenta, have been less explored. We herein hypothesized that chronic binge alcohol exposure during pregnancy significantly alters the placental protein profile in a rat FASD model METHODS: Pregnant rats were orogastrically treated daily with alcohol (4.5 g/kg, gestational day (GD) 5-10; 6...
July 19, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28715613/isolation-and-characterization-of-canine-placenta-derived-mesenchymal-stromal-cells-for-the-treatment-of-neurological-disorders-in-dogs
#2
Connor Long, Lee Lankford, Priyadarsini Kumar, Robert Grahn, Dori L Borjesson, Diana Farmer, Aijun Wang
Spinal cord injury (SCI) is a devastating disorder that affects humans and dogs. The prognosis of SCI depends on the severity of the injury and can include varying levels of motor and sensory deficits including devastating paraplegia and quadriplegia. Placental mesenchymal stromal cells (PMSCs) have been shown to improve wound healing and possess neuroprotective and immunomodulatory capabilities, but have not yet been clinically tested for the treatment of SCI. This study established a protocol to isolate fetal PMSCs from canine placentas and characterized their paracrine secretion profile and ability to stimulate neurons in vitro to assess their potential as a treatment option for neurological disorders in dogs...
July 17, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28710882/mid-trimester-preterm-premature-rupture-of-membranes-pprom-etiology-diagnosis-classification-international-recommendations-of-treatment-options-and-outcome
#3
REVIEW
Michael Tchirikov, Natalia Schlabritz-Loutsevitch, James Maher, Jörg Buchmann, Yuri Naberezhnev, Andreas S Winarno, Gregor Seliger
Mid-trimester preterm premature rupture of membranes (PPROM), defined as rupture of fetal membranes prior to 28 weeks of gestation, complicates approximately 0.4%-0.7% of all pregnancies. This condition is associated with a very high neonatal mortality rate as well as an increased risk of long- and short-term severe neonatal morbidity. The causes of the mid-trimester PPROM are multifactorial. Altered membrane morphology including marked swelling and disruption of the collagen network which is seen with PPROM can be triggered by bacterial products or/and pro-inflammatory cytokines...
July 15, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28710796/plant-produced-zika-virus-envelope-protein-elicits-neutralizing-immune-responses-that-correlate-with-protective-immunity-against-zika-virus-in-mice
#4
Ming Yang, Haiyan Sun, Huafang Lai, Jonathan Hurtado, Qiang Chen
The global Zika virus (ZIKV) outbreak and its link to fetal and newborn microcephaly and severe neurological complications in adults call for the urgent development of ZIKV vaccines. In response, we developed a subunit vaccine based on the ZIKV envelope (E) protein and investigated its immunogenicity in mice. Transient expression of ZIKV E (zE) resulted in its rapid accumulation in leaves of Nicotiana benthamiana plants. Biochemical analysis revealed that plant-produced ZIKV E (PzE) exhibited specific binding to a panel of monoclonal antibodies that recognize various zE conformational epitopes...
July 15, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28700709/eye-movement-activity-in-normal-human-fetuses-between-24-and-39-weeks-of-gestation
#5
Hikohiro Okawa, Seiichi Morokuma, Kana Maehara, Akiko Arata, Yoshiyuki Ohmura, Takashi Horinouchi, Yukuo Konishi, Kiyoko Kato
Rapid eye movement (REM) sleep occurs throughout a relatively large proportion of early development, and normal REM activity appears to be required for healthy brain development. The eye movements (EMs) observed during REM sleep are the most distinctive characteristics of this state. EMs are used as an index of neurological function postnatally, but no specific indices of EM activity exist for fetuses. We aimed to identify and characterize EM activity, particularly EM bursts suggestive of REM periods, in fetuses with a gestational age between 24 and 39 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28694114/epigenetic-dysregulation-of-protocadherins-in-human-disease
#6
REVIEW
Nady El Hajj, Marcus Dittrich, Thomas Haaf
Protocadherins (Pcdhs) are a group of cell-cell adhesion molecules that are highly expressed in the nervous system and have a major function in dendrite development and neural circuit formation. However, the role protocadherins play in human health and disease remains unclear. Several recent studies have associated epigenetic dysregulation of protocadherins with possible implications for disease pathogenesis. In this review, we briefly recap the various epigenetic mechanisms regulating protocadherin genes, particularly the clustered Pcdhs...
July 7, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28691735/prenatal-maternal-cortisol-measures-predict-learning-and-short-term-memory-performance-in-3-but-not-5-month-old-infants
#7
Laura A Thompson, Gin Morgan, Cynthia A Unger, LeeAnna A Covey
Little is known about relations between maternal prenatal stress and specific cognitive processes-learning and memory-in infants. A modified crib-mobile task was employed in a longitudinal design to test relations between maternal prenatal cortisol, prenatal subjective stress and anxiety, psychosocial variables, and learning and memory in 3- and 5-month-old infants. Results revealed that maternal prenatal cortisol was affected by particular psychosocial variables (e.g., maternal age, whether or not the infant's grandmother provided childcare, financial status), but was unrelated to measures of maternal depression, anxiety, and stress...
July 10, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28686845/metabolomics-and-fetal-alcohol-spectrum-disorder-a-mini-review
#8
Erin Goldberg, Michel Aliani
Fetal alcohol spectrum disorder (FASD) is a major public health issue that encompasses an array of physical, neurological and behavioral effects due to alcohol consumption during pregnancy. Classical biomarkers of FASD that are currently used lack sensitivity and specificity, and as such there is an opportunity through the use of novel metabolomics analysis to identify novel biomarkers to identify those at risk for FASD, which could more effectively aid in early intervention. The focus of this mini-review is to identify current work that has been done in the field of metabolomics in FASD in utero, and to highlight promising metabolites that could act as biomarkers in the future...
July 7, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28684143/what-s-new-in-clinical-obstetric-anesthesia-in-2015
#9
REVIEW
P E Hess
Each calendar year the Society for Obstetric Anesthesia and Perinatology invites an individual to conduct a review of the medical literature, identifying clinically relevant publications of interest to the obstetric anesthesia provider. This report of that effort covers the publications from 2015 and includes the categories of anesthesia and analgesia, complications of neuraxial procedures, and the effects of anesthesia on the fetus. Neuraxial procedures represent the foundation of obstetric anesthesia; advances in anesthesia and analgesia include novel modes of administration, and refinements in care of the medically complex patient...
March 18, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28681995/differences-in-neural-crest-sensitivity-to-ethanol-account-for-the-infrequency-of-anterior-segment-defects-in-the-eye-compared-with-craniofacial-anomalies-in-a-zebrafish-model-of-fetal-alcohol-syndrome
#10
Jessica Eason, Antionette L Williams, Bahaar Chawla, Christian Apsey, Brenda L Bohnsack
BACKGROUND: Ethanol (ETOH) exposure during pregnancy is associated with craniofacial and neurologic abnormalities, but infrequently disrupts the anterior segment of the eye. In these studies, we used zebrafish to investigate differences in the teratogenic effect of ETOH on craniofacial, periocular, and ocular neural crest. METHODS: Zebrafish eye and neural crest development was analyzed by means of live imaging, TUNEL (terminal deoxynucleotidyl transferase dUTP nick end labeling) assay, immunostaining, detection of reactive oxygen species, and in situ hybridization...
July 6, 2017: Birth defects research
https://www.readbyqxmd.com/read/28679745/maternal-antiviral-immunoglobulin-accumulates-in-neural-tissue-of-neonates-to-prevent-hsv-neurological-disease
#11
Yike Jiang, Chaya D Patel, Richard Manivanh, Brian North, Iara M Backes, David A Posner, Francesca Gilli, Andrew R Pachner, Lananh N Nguyen, David A Leib
While antibody responses to neurovirulent pathogens are critical for clearance, the extent to which antibodies access the nervous system to ameliorate infection is poorly understood. In this study on herpes simplex virus 1 (HSV-1), we demonstrate that HSV-specific antibodies are present during HSV-1 latency in the nervous systems of both mice and humans. We show that antibody-secreting cells entered the trigeminal ganglion (TG), a key site of HSV infection, and persisted long after the establishment of latent infection...
July 5, 2017: MBio
https://www.readbyqxmd.com/read/28675682/imaging-and-management-of-fetuses-and-neonates-with-alloimmune-thrombocytopenia
#12
REVIEW
Arzu Kovanlikaya, Priyanka Tiwari, James B Bussel
Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is the most common cause of severe neonatal thrombocytopenia and intracranial bleeding in term newborns. Intracranial hemorrhage (ICH) commonly results in death or severe, lasting neurologic disability. The timing of ICH is also important for management of the next affected pregnancy in cases of FNAIT. This manuscript reviews the advantages and disadvantages of the different radiologic methodologies to identify and characterize ICH. It discusses the limits of ultrasound and the advantages of magnetic resonance imaging allowing avoidance of the radiation associated with computed tomography (CT) scans...
July 4, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28673503/-thirty-years-of-platelet-immunology-in-fetal-and-neonatal-alloimmune-thrombocytopenia-management-current-situation
#13
R Petermann
Fetal and neonatal allo-immune thrombocytopenia (FNAIT) is considered as a rare disease due to the incidence (1/1000-1/2000 births). The major complication of severe thrombocytopenia is bleeding and particularly intra-cranial hemorrhage and neurologic sequelae following. Serology and molecular biology developments have reconfigured the platelet immunology diagnosis. Anti-HPA-1a allo-immunisation is responsible for more than 80% FNAIT cases with a high recurrence rate of severe bleeding complications. Therapeutic management has changed over the coming years from an invasive concept associating fetal blood sampling and in utero platelet transfusion to a non invasive treatment by intravenous immunoglobulins injection (IVIg)...
June 30, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28664014/super-selective-balloon-test-occlusion-of-the-posterior-communicating-artery-in-the-treatment-of-a-posterior-cerebral-artery-fusiform-aneurysm-a-case-report
#14
Makoto Isozaki, Hiroshi Arai, Hiroyuki Neishi, Ryuhei Kitai, Ken-Ichiro Kikuta
We report the case of a 49-year-old man with underlying hypertension who developed diplopia lasting 2 months. Magnetic resonance imaging and digital subtraction angiography showed multi-lobular unruptured aneurysms in the P2 portion of the posterior cerebral artery (PCA) migrating into the interpeduncular cistern of the midbrain. Because the shapes of the aneurysms were serpentine fusiform and the posterior communicating artery (PCoA) was the fetal type, we planned anastomosis of the occipital artery to the P4 portion of the PCA followed by endovascular obliteration of the parent artery including the aneurysms...
October 2016: NMC Case Rep J
https://www.readbyqxmd.com/read/28649563/symptomatic-congenital-cytomegalovirus-infection-in-children-of-seropositive-women
#15
Ines Mack, Marie-Anne Burckhardt, Ulrich Heininger, Friederike Prüfer, Sven Schulzke, Sven Wellmann
Cytomegalovirus (CMV) is the most frequent congenital virus infection worldwide. The risk of congenital CMV (cCMV) transmission is highest in seronegative women who acquire primary CMV infection during pregnancy. A growing body of evidence indicates that secondary CMV infections in pregnant women with preconceptual immunity (either through reactivation of latent virus or re-infection with a new strain of CMV) contribute to a much greater proportion of symptomatic cCMV than was previously thought. Here, we describe a case of symptomatic cCMV infection in the newborn of a woman with proven immunity prior to pregnancy...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28648716/a-new-method-of-isolating-spinal-motor-neurons-from-fetal-mouse
#16
Weifang Wang, Bao Qi, Hui Lv, Fei Wu, Lulu Liu, Wei Wang, Quanquan Wang, Liangchen Hu, Yanlei Hao, Yuzhong Wang
BACKGROUND: Isolating of primary motor neurons from animal embryos is critical for the study of neurological disease including mechanistic discovery and therapeutic development. Density gradient centrifuge taking advantage of the buoyant of motor neuron permits the enrichment of motor neurons. Despite the metrizamide, an OptiPrep medium has been introduced to separate the motor neurons by gradient centrifuge. NEW METHOD: We hereby used single density gradient of OptiPrep medium to isolate the spinal motor neurons from the fetal mouse...
June 23, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28648573/personalized-treatment-with-immunoadsorption-and-intravenous-immunoglobulin-in-a-case-of-severe-rh-alloimmunization-during-pregnancy-unresponsive-to-plasma-exchange
#17
Anna Colpo, Tiziana Tison, Maria Teresa Gervasi, Cinzia Vio, Maria Vicarioto, Giustina De Silvestro, Piero Marson
INTRODUCTION: Despite prophylaxis, a small proportion of RhD-negative women may develop anti-D antibodies after a sensitizing event occurring during pregnancy or delivery of a D-positive baby. Intrauterine transfusion (IUT) is the treatment of choice in case of fetal anemia, but it cannot be performed early during pregnancy. Combined treatment with therapeutic plasma-exchange (TPE) and intravenous immunoglobulin (IVIG) can avoid or delay IUT. Immunoadsorption (IA) could represent a more effective treatment in selected cases...
June 6, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28646257/effect-of-epilepsy-in-pregnancy-on-fetal-growth-restriction-a-systematic-review-and-meta-analysis
#18
REVIEW
Daijuan Chen, Lisha Hou, Xia Duan, Hongling Peng, Bing Peng
PURPOSE: Epilepsy is one of the most common neurological diseases during pregnancy. However, the influence of epilepsy on fetal growth is not understood. Thus, this study conducted a meta-analysis to determine the influence of epilepsy during pregnancy on fetal growth restriction (FGR). METHODS: BIOSIS, Medline, Embase, and PubMed databases were searched between January 2000 and January 2016. Without imposing language or regional restrictions, referenced articles were selected...
June 23, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28641519/neural-stem-cells-and-human-induced-pluripotent-stem-cells-to-model-rare-cns-diseases
#19
Lidia De Filippis, Cristina Zalfa, Daniela Ferrari
Despite the great effort spent over the last decades to unravel the pathological mechanisms underpinning the development of central nervous system disorders, most of them remain still unclear. In particular, the study of rare brain diseases is hurdled by the lack of post-mortem samples and of reliable epidemiological studies, thus the setting of in vitro modeling systems appears essential to dissect the puzzle of genetic and environmental alterations affecting neural cells viability and functionality The isolation and expansion in vitro of embryonic (ESC) and fetal neural stem cells (NSC) from human tissue has efficiently allowed to model several neurological diseases "in a dish" and has also provided a novel platform to test potential therapeutic strategies in a pre-clinical setting...
June 15, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28641304/hyperemesis-gravidarum-a-review-of-recent-literature
#20
Viktoriya London, Stephanie Grube, David M Sherer, Ovadia Abulafia
BACKGROUND: In the United States, hyperemesis gravidarum is the most common cause of hospitalization during the first half of pregnancy and is second only to preterm labor for hospitalizations in pregnancy overall. In approximately 0.3-3% of pregnancies, hyperemesis gravidarum is prevalent and this percentage varies on account of different diagnostic criteria and ethnic variation in study populations. Despite extensive research in this field, the mechanism of the disease is largely unknown...
June 23, 2017: Pharmacology
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