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https://www.readbyqxmd.com/read/28814778/in-vivo-and-in-vitro-sex-differences-in-the-dendritic-morphology-of-developing-murine-hippocampal-and-cortical-neurons
#1
Kimberly P Keil, Sunjay Sethi, Machelle D Wilson, Hao Chen, Pamela J Lein
Altered dendritic morphology is common in neurodevelopmental disorders (NDDs), many of which show sex biases in prevalence, onset and/or severity. However, whether dendritic morphology varies as a function of sex in juvenile mice or primary neuronal cell cultures is largely unknown even though both are widely used models for studying NDDs. To address this gap, we quantified dendritic morphology in CA1 pyramidal hippocampal and adjacent somatosensory pyramidal cortical neurons from male and female postnatal day (P)28 C57BL/6J mice...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814550/changing-neurodevelopment-at-8-years-in-children-born-extremely-preterm-since-the-1990s
#2
Jeanie L Y Cheong, Peter J Anderson, Alice C Burnett, Gehan Roberts, Noni Davis, Leah Hickey, Elizabeth Carse, Lex W Doyle
BACKGROUND AND OBJECTIVE: Survival of extremely preterm (EP; <28 weeks' gestation) infants has increased over the last 2 decades. Equivalent reductions in developmental morbidity in early childhood have not been consistently reported. The aim of this study was to determine trends in neurodevelopmental outcomes at 8 years of age of children born EP (22-27 completed weeks' gestation) over the past 2 decades. METHODS: Population-based cohorts of all EP survivors born in the state of Victoria, Australia in 1991-1992, 1997, and 2005 were recruited at birth...
June 2017: Pediatrics
https://www.readbyqxmd.com/read/28812269/oxytocin-signaling-in-the-early-life-of-mammals-link-to-neurodevelopmental-disorders-associated-with-asd
#3
Françoise Muscatelli, Michel G Desarménien, Valery Matarazzo, Valery Grinevich
Oxytocin plays a role in various functions including endocrine and immune functions but also parent-infant bonding and social interactions. It might be considered as a main neuropeptide involved in mediating the regulation of adaptive interactions between an individual and his/her environment. Recently, a critical role of oxytocin in early life has been revealed in sensory processing and multi-modal integration that are essential for normal postnatal neurodevelopment. An early alteration in the oxytocin-system may disturb its maturation and may have short-term and long-term pathological consequences such as autism spectrum disorders...
August 16, 2017: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/28812058/environmental-pollutants-and-neurodevelopment-review-of-benefits-from-closure-of-a-coal-burning-power-plant-in-tongliang-china
#4
Vrinda Kalia, Frederica Perera, Deliang Tang
Background. Understanding preventable causes of neurodevelopmental disorders is a public health priority. Polycyclic aromatic hydrocarbons (PAH) from combustion of fossil fuel, lead, and mercury are among known neurodevelopmental toxicants. Method. For the first time, we comprehensively review the findings from a study by the Columbia Center for Children's Environmental Health and Chinese partners that followed 2 groups of mother-child pairs, one from 2002 and another from 2005, in Tongliang County, China. Pregnant mothers in the 2 cohorts experienced different exposure to PAH because a local coal-burning power plant was shut down in 2004...
2017: Global Pediatric Health
https://www.readbyqxmd.com/read/28810265/viral-retinopathy-in-experimental-models-of-zika-infection
#5
Zhenyang Zhao, Matthew Yang, Sasha R Azar, Lynn Soong, Scott C Weaver, Jiaren Sun, Yan Chen, Shannan L Rossi, Jiyang Cai
Purpose: Emerging evidence has shown that both congenital and adult Zika virus (ZIKV) infection can cause eye diseases. The goals of the current study were to explore mechanisms and pathophysiology of ZIKV-induced eye defects. Methods: Wild-type or A129 interferon type I receptor-deficient mice were infected by either FSS13025 or Mex1-7 strain of ZIKV. Retinal histopathology was measured at different time points after infection. The presence of viral RNA and protein in the retina was determined by in situ hybridization and immunofluorescence staining, respectively...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28805106/measuring-fetal-brain-and-lung-transcripts-in-amniotic-fluid-supernatant-a-comparison-of-digital-pcr-and-rt-qpcr-methods
#6
Lisa Hui, Sally Beard, Natalie J Hannan
PURPOSE: Amniotic fluid (AF) cell-free RNA is a promising source of information regarding fetal physiology. Digital PCR (dPCR) is a direct approach to nucleic acid detection that reports absolute transcript copy number. The aim of this study was to compare quantification of cell-free fetal brain and lung RNA transcripts in AF by reverse transcription-qPCR and dPCR. MATERIAL AND METHODS: Prospective hospital-based study performed in 2016-2017. Pulmonary genes were quantified in term AF samples collected at elective cesarean birth; neurodevelopmental genes were measured in preterm samples (< 34 weeks) obtained from women undergoing clinically-indicated amniocentesis...
August 14, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28803920/open-chromatin-profiling-in-hipsc-derived-neurons-prioritizes-functional-noncoding-psychiatric-risk-variants-and-highlights-neurodevelopmental-loci
#7
Marc P Forrest, Hanwen Zhang, Winton Moy, Heather McGowan, Catherine Leites, Leonardo E Dionisio, Zihui Xu, Jianxin Shi, Alan R Sanders, William J Greenleaf, Chad A Cowan, Zhiping P Pang, Pablo V Gejman, Peter Penzes, Jubao Duan
Most disease variants lie within noncoding genomic regions, making their functional interpretation challenging. Because chromatin openness strongly influences transcriptional activity, we hypothesized that cell-type-specific open chromatin regions (OCRs) might highlight disease-relevant noncoding sequences. To investigate, we mapped global OCRs in neurons differentiating from hiPSCs, a cellular model for studying neurodevelopmental disorders such as schizophrenia (SZ). We found that the OCRs are highly dynamic and can stratify GWAS-implicated SZ risk variants...
August 4, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28803703/viral-hijacking-of-formins-in-neurodevelopmental-pathologies
#8
REVIEW
Karen Racicot, Sarah VanOeveren, Art Alberts
The 2015 Zika virus (ZIKV) outbreak caused global concern when it was determined to cause microcephaly, hearing loss, and other neurodevelopmental manifestations upon fetal exposure. Significant progress has been made in our understanding of the interactions between ZIKV and the pregnant host, but there is still a critical need to understand how ZIKV and other neurotropic viruses affect fetal neurodevelopment. Diaphanous-related formins (Diaphs) have recently been identified as microcephaly-associated proteins in humans and mice...
August 10, 2017: Trends in Molecular Medicine
https://www.readbyqxmd.com/read/28803192/early-life-secondhand-smoke-exposure-assessed-by-hair-nicotine-biomarker-may-reduce-children-s-neurodevelopment-at-2years-of-age
#9
Nur Nadia Mohamed, See Ling Loy, Poh Ying Lim, Abdullah Al Mamun, Hamid Jan Jan Mohamed
Exposure to secondhand smoke (SHS) can affect fetal brain development as well as subsequent neurodevelopment. This study aimed to determine the association between prenatal and postnatal SHS exposure with children's neurodevelopment at 2years of age. Among 107 mother-child pairs from a Malaysia prospective cohort, prenatal and postnatal SHS exposure was determined based on maternal and child hair nicotine concentrations. Multiple linear regressions were used to determine the association between prenatal and postnatal levels of nicotine in maternal and children's' hair with children's neurodevelopment...
August 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28803151/sex-specific-differences-in-effect-of-prenatal-exposure-to-dioxin-like-compounds-on-neurodevelopment-in-japanese-children-sapporo-cohort-study
#10
Sonomi Nakajima, Yasuaki Saijo, Chihiro Miyashita, Tamiko Ikeno, Seiko Sasaki, Junboku Kajiwara, Reiko Kishi
BACKGROUND: Consistent reports are not available on the effects of dioxin-like polychlorinated biphenyls (PCBs) and polychlorinated dibenzo-p-dioxins (PCDD)/ polychlorinated dibenzofurans (PCDF) (dioxin-like compounds [DLCs]) on child neurodevelopment. Further, the effect of background-level exposure to individual DLC isomers is not known. OBJECTIVES: We carried out the Sapporo cohort study to evaluate the effect of prenatal exposure to each DLC isomer on child neurodevelopment at 6 and 18 months of age, and assessed sex-specific differences in these effects...
August 10, 2017: Environmental Research
https://www.readbyqxmd.com/read/28799518/a-neurodevelopment-and-neuroplasticity-based-framework-for-early-intervention-in-psychotic-disorders
#11
E Bora
In recent years there has been growing interest in early intervention in psychotic disorders and a number of clinical and research programmes have been developed. The clinical staging model has been an essential part of early intervention as it provides the rationale of existing programmes. In medicine, clinical staging is a valuable approach in disorders where primary pathology is progressive in nature. However, the clinical staging model of psychosis has been proposed without establishing first that schizophrenia is a primarily progressive disorder...
August 11, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28793975/infant-gut-microbiome-associated-with-cognitive%C3%A2-development
#12
Alexander L Carlson, Kai Xia, M Andrea Azcarate-Peril, Barbara D Goldman, Mihye Ahn, Martin A Styner, Amanda L Thompson, Xiujuan Geng, John H Gilmore, Rebecca C Knickmeyer
BACKGROUND: Studies in rodents provide compelling evidence that microorganisms inhabiting the gut influence neurodevelopment. In particular, experimental manipulations that alter intestinal microbiota impact exploratory and communicative behaviors and cognitive performance. In humans, the first years of life are a dynamic time in gut colonization and brain development, but little is known about the relationship between these two processes. METHODS: We tested whether microbial composition at 1 year of age is associated with cognitive outcomes using the Mullen Scales of Early Learning and with global and regional brain volumes using structural magnetic resonance imaging at 1 and 2 years of age...
June 27, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28793261/the-conserved-disease-associated-rna-binding-protein-dnab2-interacts-with-the-fragile-x-protein-ortholog-in-drosophila-neurons
#13
Rick S Bienkowski, Ayan Banerjee, J Christopher Rounds, Jennifer Rha, Omotola F Omotade, Christina Gross, Kevin J Morris, Sara W Leung, ChangHui Pak, Stephanie K Jones, Michael R Santoro, Stephen T Warren, James Q Zheng, Gary J Bassell, Anita H Corbett, Kenneth H Moberg
The Drosophila dNab2 protein is an ortholog of human ZC3H14, a poly(A) RNA binding protein required for intellectual function. dNab2 supports memory and axon projection, but its molecular role in neurons is undefined. Here, we present a network of interactions that links dNab2 to cytoplasmic control of neuronal mRNAs in conjunction with the fragile X protein ortholog dFMRP. dNab2 and dfmr1 interact genetically in control of neurodevelopment and olfactory memory, and their encoded proteins co-localize in puncta within neuronal processes...
August 8, 2017: Cell Reports
https://www.readbyqxmd.com/read/28792689/predictive-value-of-neurodevelopmental-outcome-and-serum-tau-protein-level-in-neonates-with-hypoxic-ischemic-encephalopathy
#14
Hong-Yan Lv, Su-Jing Wu, Xiu-Ling Gu, Qiu-Li Wang, Peng-Shun Ren, Yan Ma, Li-Ying Peng, Lin-Hong Jin, Lian-Xiang Li
BACKGROUND: Tau protein is s specific protein expressed by neurons in the central nervous system. Elevated serum Tau protein is associated with many diseases of the central nervous system. The serum Tau protein level in neonates with hypoxic ischemic encephalopathy (HIE) is still poorly understood. METHODS: Forty-one human neonates with HIE and thirty-five healthy neonates (control group) within 24 hours after birth were studied. Tau protein in serum was detected by enzyme-linked immunosorbent assay...
July 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28783802/association-of-neonatal-glycemia-with-neurodevelopmental-outcomes-at-4-5-years
#15
Christopher J D McKinlay, Jane M Alsweiler, Nicola S Anstice, Nataliia Burakevych, Arijit Chakraborty, J Geoffrey Chase, Gregory D Gamble, Deborah L Harris, Robert J Jacobs, Yannan Jiang, Nabin Paudel, Ryan J San Diego, Benjamin Thompson, Trecia A Wouldes, Jane E Harding
Importance: Hypoglycemia is common during neonatal transition and may cause permanent neurological impairment, but optimal intervention thresholds are unknown. Objective: To test the hypothesis that neurodevelopment at 4.5 years is related to the severity and frequency of neonatal hypoglycemia. Design, Setting, and Participants: The Children With Hypoglycemia and Their Later Development (CHYLD) Study is a prospective cohort investigation of moderate to late preterm and term infants born at risk of hypoglycemia...
August 7, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28782444/prenatal-abnormal-width-of-the-cavum-septum-pellucidum-mri-features-and-neurodevelopmental-outcome
#16
Shiri Cooper, Eldad Katorza, Michal Berkenstadt, Chen Hoffmann, Reuven Achiron, Omer Bar-Yosef
PURPOSE: To describe the morphological characteristics of fetal MRIs and outcome of prenatally-detected abnormal width of the CSP (cavum septum pellucidum). MATERIAL AND METHODS: A retrospective study of cases with abnormal width of the CSP demonstrated prenatally on MRI. Data collected included: prenatal history, MRI features, sonographic follow up, and neurodevelopmental outcome. RESULTS: Most of the cases referred (34/39) had an abnormal CSP on MRI...
August 6, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28780917/filling-a-significant-gap-in-the-cardiac-icu-implementation-of-individualised-developmental-care
#17
Samantha C Butler, Kate Huyler, Aditya Kaza, Chris Rachwal
Mortality rates among children with CHD have significantly declined, although the incidence of neurological abnormalities and neurodevelopmental impairment has increased. Research has focussed on outcomes, with limited attention on prevention and intervention. Although some developmental differences and challenges seen in children with CHD are explained by the cumulative effect of medical complications associated with CHD, many sequelae are not easily explained by medical complications alone. Although cardiac intensive care is lifesaving, it creates high levels of environmental and tactile stimulation, which potentially contribute to adverse neurodevelopmental outcomes...
August 7, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28780644/immunopotentiator-thymosin-alpha-1-promotes-neurogenesis-and-cognition-in-the-developing-mouse-via-a-systemic-th1-bias
#18
Ge Wang, Fen He, Yunlong Xu, Yuwei Zhang, Xiao Wang, Chunhua Zhou, Yihong Huang, Juntao Zou
In early life, the immune system plays an essential role in brain development. In our study, the immunopotentiator thymosin alpha-1 (Ta1) was peripherally administered to neonatal mice to explore whether the peripheral immunopotentiator affects neurodevelopment and cognition, and to further investigate the relevant mechanism. Compared with the control group, the Ta1 mice displayed better cognitive abilities in early life. The numbers of 5-bromodeoxyuridine (BrdU)+, nestin+, T-box transcription factor 2 (Tbr2)+, BrdU+/doublecortin (DCX)+, BrdU+/ionized calcium-binding adaptor molecule 1 (Iba1)+, and BrdU+/neuronal nuclei (NeuN)+ cells in the hippocampus were increased in the Ta1 group, accompanied by increased interleukin-4 (IL-4), interferon-gamma, brain-derived neurotrophic factor, nerve growth factor, and insulin-like growth factor-1 as well as decreased IL-6 and tumor necrosis factor-α...
August 5, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28780548/effect-of-single-family-rooms-for-preterm-infants-on-neurodevelopment-study-protocol-for-a-systematic-review
#19
Nicole R van Veenendaal, Sophie R D van der Schoor, Jacqueline Limpens, Anne A M W van Kempen, Johannes B van Goudoever
INTRODUCTION: Preterm infants are at an increased risk for neurodevelopmental delay. They have to endure many stressors in early life, including parent-infant separation, noise and painful procedures during hospitalisation in the highly technological environment of the modern neonatal ward. Currently, a shift is being noticed in the architectural design of neonatal wards towards single family rooms instead of the common open bay units. The influence of the hospital environment on health and specifically neurodevelopment in this vulnerable patient population remains under discussion...
August 4, 2017: BMJ Open
https://www.readbyqxmd.com/read/28780499/how-to-feed-a-baby-recovering-from-necrotising-enterocolitis-when-maternal-milk-is-not-available
#20
REVIEW
Nicholas D Embleton, Stefan P Zalewski
Necrotising enterocolitis (NEC) is a devastating disease with significant mortality and serious adverse outcomes in at least 50% including short gut and poor neurodevelopment. Research and management are complicated by a lack of robust clinical markers, and without histological confirmation, there is a risk of both underdiagnosis and overdiagnosis. Interunit variations in the thresholds for surgical referral, laparotomy and postmortem rates mean the actual incidence is difficult to determine, especially because the histological term 'NEC' is used in practice to describe a heterogeneous clinical syndrome...
August 5, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
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