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Fetal neurology

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https://www.readbyqxmd.com/read/28439323/caudal-regression-syndrome-a-case-series-of-a-rare-congenital-anomaly
#1
Yogesh Kumar, Nishant Gupta, Kusum Hooda, Pranav Sharma, Salil Sharma, Puneet Kochar, Daichi Hayashi
BACKGROUND: Caudal regression syndrome is a rare, neural tube defect characterized by an abnormal development of the caudal aspect of the vertebral column and the spinal cord., It results in neurological deficits ranging from bladder and bowel involvement to severe sensory and motor deficits in the lower limbs. Maternal diabetes, genetic factors and some teratogens have been shown to be associated with its pathogenesis. Caudal regression syndrome is usually diagnosed initially by antenatal ultrasound with more definitive diagnosis made by antenatal or postnatal MRI...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28435652/stroke-in-a-child-with-hemoglobin-sc-disease-a-case-report-describing-use-of-hydroxyurea-after-transfusion-therapy
#2
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/28431283/zika-virus-infection-of-adult-and-fetal-stat2-knock-out-hamsters
#3
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/28429143/how-to-treat-lumbar-disc-herniation-in-pregnancy-a-systematic-review-on-current-standards
#4
REVIEW
Alberto Di Martino, Fabrizio Russo, Luca Denaro, Vincenzo Denaro
PURPOSE: In this systematic review, we aim to illustrate the current and safe concepts in the assessment, diagnosis and management of herniated lumbar disc (HLD) during pregnancy. METHODS: A systematic review and reporting on the diagnosis, treatment and clinical results of HLD during pregnancy is performed. RESULTS: The MRI represents the first level and safest diagnostic tool for pregnant women affected by spinal problems allowing for a noninvasive and detailed radiological examination of the spine...
April 20, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28426964/ipsc-derived-human-microglia-like-cells-to-study-neurological-diseases
#5
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
https://www.readbyqxmd.com/read/28426650/neural-injury-markers-in-intrauterine-growth-restriction-and-their-relation-to-perinatal-outcomes
#6
E Mazarico, E Llurba, R Cumplido, A Valls, J C Melchor, M Iglesias, L Cabero, E Gratacós, Md Gómez Roig
BACKGROUND: The aims of this study were to: (1) compare the concentrations of two neural injury markers, S100B protein and neuron-specific enolase (NSE), in intrauterine growth-restricted fetuses (IUGR) and in fetuses with appropriate growth-for-gestational-age (AGA), and (2) investigate potential relationships between concentrations of these markers, Doppler abnormalities, and adverse perinatal or neonatal outcomes. METHODS: This was a case-controlled, cooperative, prospective study among Spanish Maternal and Child Health Network (Retic SAMID) hospitals...
April 20, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28426137/hydroxyurea-hydroxycarbamide-for-sickle-cell-disease
#7
REVIEW
Sarah J Nevitt, Ashley P Jones, Jo Howard
BACKGROUND: Sickle cell disease (SCD) is one of the most common inherited diseases worldwide. It is associated with lifelong morbidity and a reduced life expectancy. Hydroxyurea (hydroxycarbamide), an oral chemotherapeutic drug, ameliorates some of the clinical problems of SCD, in particular that of pain, by raising fetal haemoglobin. This is an update of a previously published Cochrane Review. OBJECTIVES: To assess the effects of hydroxyurea therapy in people with SCD (all genotypes), of any age, regardless of setting...
April 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28422757/cross-reactive-dengue-human-monoclonal-antibody-prevents-severe-pathologies-and-death-from-zika-virus-infections
#8
Yiu-Wing Kam, Cheryl Yi-Pin Lee, Teck-Hui Teo, Shanshan W Howland, Siti Naqiah Amrun, Fok-Moon Lum, Peter See, Nicholas Qing-Rong Kng, Roland G Huber, Mei-Hui Xu, Heng-Liang Tan, Andre Choo, Sebastian Maurer-Stroh, Florent Ginhoux, Katja Fink, Cheng-I Wang, Lisa F P Ng, Laurent Rénia
Zika virus (ZIKV) infections have been linked with neurological complications and congenital Zika syndrome. Given the high level of homology between ZIKV and the related flavivirus dengue virus (DENV), we investigated the level of cross-reactivity with ZIKV using a panel of DENV human mAbs. A majority of the mAbs showed binding to ZIKV virions, with several exhibiting neutralizing capacities against ZIKV in vitro. Three of the best ZIKV-neutralizing mAbs were found to recognize diverse epitopes on the envelope (E) glycoprotein: the highly conserved fusion-loop peptide, a conformation-specific epitope on the E monomer, and a quaternary epitope on the virion surface...
April 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28413697/acute-ethanol-exposure-during-late-mouse-neurodevelopment-results-in-long-term-deficits-in-memory-retrieval-but-not-in-social-responsiveness
#9
Katherine Houlé, Myshake Abdi, Erin B D Clabough
OBJECTIVE: Prenatal alcohol exposure can result in neurological changes in affected individuals and may result in the emergence of a broad spectrum of neurobehavioral abnormalities termed fetal alcohol spectrum disorders (FASD). The effects of ethanol exposure during development are both time and dose dependent. Although many animal models of FASD use more chronic ethanol exposure, acute developmental alcohol exposure may also cause long-lasting neuronal changes. Our research employed behavioral measures to assess the effects of a single early postnatal ethanol intoxication event in mice...
April 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28412496/magnesium-sulfate-mg-prevents-maternal-inflammation-induced-offspring-cerebral-injury-evident-on-mri-but-not-via-il-1%C3%AE
#10
Yuval Ginsberg, Nizar Khatib, Boaz Weiss, Shay Arison, Michael G Ross, Zeev Weiner, Ron Beloosesky
OBJECTIVE: As maternal treatment with magnesium sulfate (MG) may protect the fetal brain, we sought to assess the inflammation associated neuroprotective potential of MG and its association to interleukin 1β (IL-1β). METHODS: Pregnant Sprague-Dawley rats at 18-day gestation received i.p. lipopolysaccharide (LPS) or saline. Dams were randomized to treatment with s.c. saline (control), or MG prior to or following the i.p. injection, resulting in three groups. At the end of the treatment, fetal brain IL-1β was quantified for 18 pregnant rats (six of each group)...
April 12, 2017: Neuroscience
https://www.readbyqxmd.com/read/28402971/implicating-receptor-activator-of-nf-%C3%AE%C2%BAb-rank-rank-ligand-signalling-in-microglial-responses-to-toll-like-receptor-stimuli
#11
Anton Kichev, Pascale Eede, Pierre Gressens, Claire Thornton, Henrik Hagberg
Inflammation in the perinatal brain caused by maternal or intrauterine fetal infection is now well established as an important contributor to the development of perinatal brain injury. Exposure to inflammatory products can impair perinatal brain development and act as a risk factor for neurological dysfunction, cognitive disorders, cerebral palsy, or preterm birth. Pre-exposure to inflammation significantly exacerbates brain injury caused by hypoxic/ischaemic insult. Tumour necrosis factor (TNF) is a family of cytokines largely involved in inflammation signalling...
April 13, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28397721/ultrasonographic-characteristics-of-cortical-sulcus-development-in-the-human-fetus-between-18-and-41-weeks-of-gestation
#12
Xi Chen, Sheng-Li Li, Guo-Yang Luo, Errol R Norwitz, Shu-Yuan Ouyang, Hua-Xuan Wen, Ying Yuan, Xiao-Xian Tian, Jia-Min He
BACKGROUND: Fetal brain development is a complicated process that continues throughout pregnancy. Fetal sulcus development has typical morphological features. Assessment of fetal sulcus development to understand the cortical maturation and development by prenatal ultrasound has become widespread. This study aimed to explore a reliable method to assess cortical sulcus and to describe the normal sonographic features of cortical sulcus development in the human fetus between 18 and 41 weeks of gestation...
April 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28394231/long-term-neurodevelopmental-outcome-of-children-born-to-prospectively-followed-pregnancies-of-women-with-systemic-lupus-erythematosus-and-or-antiphospholipid-syndrome
#13
C Nalli, A Iodice, L Andreoli, J Galli, A Lojacono, M Motta, E Fazzi, A Tincani
Background Systemic lupus erythematosus (SLE) and antiphospholipid antibody syndrome (APS) are autoimmune diseases that affect women of childbearing age. Maternal IgG antiphospholipid antibodies (aPL) can cross the placenta during pregnancy and theoretically reach the fetal brain. Some studies showed an increased number of learning disabilities in these children. Objectives To evaluate the long-term neurodevelopmental outcome of 40 children (median age 7.4 years) born to mothers with SLE and/or APS carrying positive IgG aPL during the third trimester of pregnancy...
April 2017: Lupus
https://www.readbyqxmd.com/read/28394223/gestational-outcomes-in-patients-with-neuropsychiatric-systemic-lupus-erythematosus
#14
G R de Jesus, B C Rodrigues, M I Lacerda, F C Dos Santos, N R de Jesus, E M Klumb, R A Levy
This study analyzed maternal and fetal outcomes of pregnancies of neuropsychiatric systemic lupus erythematosus patients followed in a reference unit. This retrospective cohort study included 26 pregnancies of patients seen between 2011 and 2015 included with history and/or active neuropsychiatric systemic lupus erythematosus among 135 pregnancies. Three patients had active neuropsychiatric systemic lupus erythematosus at conception, but only one remained with neurological activity during gestation, characteristically related to the inadvertent suspension of medications...
April 2017: Lupus
https://www.readbyqxmd.com/read/28392903/emergence-of-signs-of-neural-cells-after-exposure-of-bone-marrow-derived-mesenchymal-stem-cells-to-fetal-brain-extract
#15
Iman Razeghian Jahromi, Davood Mehrabani, Ali Mohammadi, Mohammad Mahdi Ghahramani Seno, Mehdi Dianatpour, Shahrokh Zare, Amin Tamadon
OBJECTIVES: Nowadays much effort is being invested in order to diagnose the mechanisms involved in neural differentiation. By clarifying this, making desired neural cells in vitro and applying them into diverse neurological disorders suffered from neural cell malfunctions could be a feasible choice. Thus, the present study assessed the capability of fetal brain extract (FBE) to induce rat bone marrow-derived mesenchymal stem cells (BM-MSCs) toward neural cells. MATERIALS AND METHODS: For this purpose, BM-MSCs were collected from rats and cultured and their mesenchymal properties were confirmed...
March 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28391612/distress-vocalization-delay-in-the-neonate-lamb-as-a-neurobehavioral-assessment-tool
#16
Christine L Morton, Geoffrey Hinch, Alison Small
Acoustic features of infant distress vocalizations including latency and rate of emission are used as indices of neurological deficit and integrity in human and rodent neonates. This paper investigates the relationship between temporal characteristics of distress calls, elicited by an isolation stimulus, and indicators of neurobehavioral development over 12 hr postpartum in the neonate lamb. Delayed vocalization initiation was found to be associated with poor locomotor and orientation behavior reflecting the capacity of the lamb to reunite with and follow its dam, and a lowered rate of signal emission following commencement of vocalization...
April 9, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28370966/zika-infection-and-the-development-of-neurological-defects
#17
REVIEW
Fabiele Baldino Russo, Patricia Jungmann, Patricia Cristina Baleeiro Beltrão-Braga
Starting with the outbreak in Brazil, Zika virus (ZIKV) infection has been correlated with severe syndromes such as Congenital Zika Syndrome (CZS) and Guillain- Barré Syndrome (GBS). Here we review the status of Zika virus pathogenesis in the central nervous system (CNS). One of the main concerns about ZIKV exposure during pregnancy is abnormal brain development, which results in microcephaly in newborns. Recent advances in in vitro research show that ZIKV can infect and obliterate cells from the CNS, such as progenitors, neurons, and glial cells...
March 31, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28369985/nongalenic-pial-arteriovenous-fistula-prenatal-diagnosis
#18
Cristina Martínez-Payo, Javier Sancho Saúco, Maria Miralles, Tirso Pérez Medina
Pial arteriovenous (AV) fistulae have rarely been diagnosed in utero. They are characterized by one or more pial arteries flowing directly into a cortical vein without any shunt or interposed capillary bed. In the fetus and the newborn up to 2 years of age, the most common clinical manifestation is heart failure resulting from fistula overload. Later on, hydrocephalus, focal neurologic deficits, headaches, seizures, and cerebral hemorrhage are the most common manifestations. We present a case of nongalenic pial AV fistula diagnosed in the 25th week of pregnancy, which resulted in intrauterine fetal death due to congestive heart failure...
April 3, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28366194/effects-of-a-defined-xeno-free-medium-on-the-growth-and-neurotrophic-and-angiogenic-properties-of-human-adult-stem-cells
#19
Maria Brohlin, Peyman Kelk, Mikael Wiberg, Paul J Kingham
BACKGROUND: The growth properties and neurotrophic and angiogenic effects of human mesenchymal stromal cells (MSCs) cultured in a defined xeno-free, serum-free medium (MesenCult-XF) were investigated. METHODS: Human MSCs from adipose tissue (ASCs) and bone marrow (BMSCs) were cultured in Minimum Essential Medium-alpha (α-MEM) containing fetal calf serum or in MesenCult-XF. Proliferation was measured over 10 passages and the colony-forming unit (CFU) assay and expression of cluster of differentiation (CD) surface markers were determined...
May 2017: Cytotherapy
https://www.readbyqxmd.com/read/28351841/maternofetal-transport-of-vitamin-b12-role-of-tcblr-cd320-and-megalin
#20
Kaveri Arora, Jeffrey M Sequeira, Edward V Quadros
Vitamin B12 deficiency causes megaloblastic anemia and neurologic disorder in humans. Gene defects of transcobalamin (TC) and the transcobalamin receptor (TCblR), needed for cellular uptake of the TC-bound B12, do not confer embryonic lethality. TC deficiency can produce the hematologic and neurologic complications after birth, whereas TCblR/CD320 gene defects appear to produce mild metabolic changes. Alternate maternofetal transport mechanisms appear to provide adequate B12 to the fetus. To understand this mechanism, we evaluated the role of TC, TCblR/CD320, and megalin in maternofetal transport of B12 in a TCblR/CD320 knockout (KO) mouse...
March 28, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
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