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https://www.readbyqxmd.com/read/28820892/maternal-autoimmune-antibodies-alter-the-dendritic-arbor-and-spine-numbers-in-the-infragranular-layers-of-the-cortex
#1
Jeanelle Ariza, Jesus Hurtado, Haille Rogers, Raymond Ikeda, Michael Dill, Craig Steward, Donnay Creary, Judy Van de Water, Verónica Martínez-Cerdeño
An association between maternal IgG antibodies reactive against proteins in fetal brain and an outcome of autism in the child has been identified. Using a mouse model of prenatal intraventricular administration of autism-specific maternal IgG, we demonstrated that these antibodies produce behavioral alterations similar to those in children with ASD. We previously demonstrated that these antibodies bind to radial glial stem cells (RG) and observed an increase in the number of divisions of translocating RG in the developing cortex...
2017: PloS One
https://www.readbyqxmd.com/read/28781890/self-reported-pregnancy-exposures-and-placental-dna-methylation-in-the-marbles-prospective-autism-sibling-study
#2
Rebecca J Schmidt, Diane I Schroeder, Florence K Crary-Dooley, Jacqueline M Barkoski, Daniel J Tancredi, Cheryl K Walker, Sally Ozonoff, Irva Hertz-Picciotto, Janine M LaSalle
Human placenta is a fetal-derived tissue that offers a unique sample of epigenetic and environmental exposures present in utero. In the MARBLES prospective pregnancy study of high-risk younger siblings of children with autism spectrum disorder (ASD), pregnancy and environmental factors collected by maternal interviews were examined as predictors of placental DNA methylation, including partially methylated domains (PMDs), an embryonic feature of the placental methylome. DNA methylation data from MethylC-seq analysis of 47 placentas of children clinically diagnosed at 3 years with ASD or typical development using standardized assessments were examined in relation to: child's gestational age, birth-weight, and diagnosis; maternal pre-pregnancy body mass index, smoking, education, parity, height, prenatal vitamin and folate intake; home ownership; pesticides professionally applied to lawns or gardens or inside homes, pet flea/tick pouches, collars, or soaps/shampoos used in the 3 months prior to or during pregnancy...
December 2016: Environmental Epigenetics
https://www.readbyqxmd.com/read/28758209/distinct-projection-targets-define-subpopulations-of-mouse-brainstem-vagal-neurons-that-express-the-autism-associated-met-receptor-tyrosine-kinase
#3
Anna Kamitakahara, Hsiao-Huei Wu, Pat Levitt
Detailed anatomical tracing and mapping of the viscerotopic organization of the vagal motor nuclei has provided insight into autonomic function in health and disease. To further define specific cellular identities, we paired information based on visceral connectivity with a cell-type specific marker of a subpopulation of neurons in the dorsal motor nucleus of the vagus (DMV) and nucleus ambiguus (nAmb) that express the autism-associated MET receptor tyrosine kinase. As gastrointestinal disturbances are common in children with autism spectrum disorder (ASD), we sought to define the relationship between MET-expressing (MET+) neurons in the DMV and nAmb, and the gastrointestinal tract...
July 31, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28742278/agenesis-of-the-corpus-callosum-developmental-delay-autism-spectrum-disorder-facial-dysmorphism-and-posterior-polymorphous-corneal-dystrophy-associated-with-zeb1-gene-deletion
#4
Ayeshah Chaudhry, Brian H Chung, Dimitri J Stavropoulos, Marcela P Araya, Asim Ali, Elise Heon, David Chitayat
We report on a girl diagnosed prenatally with agenesis of the corpus callosum (ACC) on fetal ultrasound and MRI. On postnatal follow-up she was noted to have developmental delay, facial dysmorphism, autism spectrum disorder, and posterior polymorphous corneal dystrophy (PPD). Array-comparative genomic hybridization analysis (Array-CGH) showed a 2.05 Mb de novo interstitial deletion at 10p11.23p11.22. The deleted region overlaps 1 OMIM Morbid Map gene, ZEB1 (the zinc finger E-box binding homeobox transcription factor 1), previously associated with posterior polymorphous corneal dystrophy type 3 (PPCD3)...
July 25, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28698032/beyond-infection-maternal-immune-activation-by-environmental-factors-microglial-development-and-relevance-for-autism-spectrum-disorders
#5
REVIEW
Staci D Bilbo, Carina L Block, Jessica L Bolton, Richa Hanamsagar, Phuong K Tran
Immune molecules such as cytokines and chemokines and the cells that produce them within the brain, notably microglia, are critical for normal brain development. This recognition has in recent years led to the working hypothesis that inflammatory events during pregnancy, e.g. in response to infection, may disrupt the normal expression of immune molecules during critical stages of neural development and thereby contribute to the risk for neurodevelopmental disorders such as autism spectrum disorder (ASD). This hypothesis has in large part been shepherded by the work of Dr...
July 8, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28694195/hemoglobins-emerging-roles-in-mental-disorders-metabolical-genetical-and-immunological-aspects
#6
REVIEW
Meric A Altinoz, Bahri Ince
Hemoglobin (Hb) expression in the central nervous system is recently shown. Cooccurences of mental disorders (mainly bipolar disorder (BD) and tic disorders) with β- or α-thalassemia trait or erythrocytosis were witnessed, which may be due to peripheral or central hypoxia/hyperoxia or haplotypal gene interactions. β-Globin genes reside at 11p15.5 close to tyrosine hydroxylase, dopamine receptor DRD4 and Brain Derived Neurotrophic Factor, which involve in psychiatric diseases. α-Globin genes reside at 16p13...
July 8, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28656175/epidemiological-and-serological-investigation-into-the-role-of-gestational-maternal-influenza-virus-infection-and-autism-spectrum-disorders
#7
Milada Mahic, Xiaoyu Che, Ezra Susser, Bruce Levin, Ted Reichborn-Kjennerud, Per Magnus, Camilla Stoltenberg, Lokendrasingh Chauhan, Thomas Briese, Michaeline Bresnahan, Pål Surén, Mady Hornig, Siri Mjaaland, W Ian Lipkin
The literature concerning gestational maternal influenza virus infection and risk of autism spectrum disorders (ASD) is inconclusive. To address this uncertainty, we obtained information from questionnaires and samples from the Autism Birth Cohort, a prospective birth cohort comprising mothers, fathers, and offspring recruited in Norway in 1999 to 2008. Through questionnaires, referrals, and linkages to the Norwegian National Patient Registry, we identified 338 mothers of children with ASD and 348 frequency-matched controls for whom plasma samples that had been collected midpregnancy and after delivery were available for influenza virus serology via luciferase immunoprecipitation and hemagglutinin inhibition assays for influenza virus strains circulating during the study period...
May 2017: MSphere
https://www.readbyqxmd.com/read/28627421/hla-g%C3%A2-14bp-insertion-and-the-kir2ds1-hlac2-complex-impact-on-behavioral-impairment-in-children-with-autism-spectrum-disorders
#8
Franca R Guerini, Elisabetta Bolognesi, Matteo Chiappedi, Alessandro Ghezzo, Salvatorica Manca, Michela Zanette, Stefano Sotgiu, Maria Martina Mensi, Milena Zanzottera, Cristina Agliardi, Andrea S Costa, Umberto Balottin, Mario Clerici
Activating KIR-HLA-C ligand complexes and HLA-G∗14bp insertion/deletion (+/-) polymorphism were associated to Autism Spectrum Disorders (ASD) and were suggested to correlate with inflammation during fetal development. We evaluated whether HLA-G∗14bp(+/-) and KIRs-HLA-C complexes are associated with cognitive and behavioral scores and EEG profile in 119 ASD children (58 from Sardinia, 61 from Peninsular Italy). KIR2DS1-C2; KIR2DS2-C1; KIR2DL1-C2; KIR2DL2-C1; KIR2DL3-C1 and HLA-G∗14bp(+/-) were molecularly genotyped by SSP and gel electrophoresis...
June 13, 2017: Neuroscience
https://www.readbyqxmd.com/read/28595950/luteolin-attenuates-interleukin-6-mediated-astrogliosis-in-human-ipsc-derived-neural-aggregates-a-candidate-preventive-substance-for-maternal-immune-activation-induced-abnormalities
#9
Masashi Zuiki, Tomohiro Chiyonobu, Michiko Yoshida, Hiroshi Maeda, Satoshi Yamashita, Satoshi Kidowaki, Tatsuji Hasegawa, Hitoshi Gotoh, Tadashi Nomura, Katsuhiko Ono, Hajime Hosoi, Masafumi Morimoto
Maternal infection during pregnancy increases the risk of neurodevelopmental conditions such as autism spectrum disorders and schizophrenia in offspring. Several previous animal studies have indicated that maternal immune activation (MIA), rather than a specific pathogen, alters fetal brain development. Among them, prenatal exposure to interleukin-6 (IL-6) has been associated with behavioral and neuropathological abnormalities, though such findings remain to be elucidated in humans. We developed a human cell-based model of MIA by exposing human induced pluripotent stem cells (hiPSCs)-derived neural aggregates to IL-6 and investigated whether luteolin-a naturally occurring flavonoid found in edible plants-could prevent MIA-induced abnormalities...
July 13, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28569757/fetal-and-postnatal-metal-dysregulation-in-autism
#10
Manish Arora, Abraham Reichenberg, Charlotte Willfors, Christine Austin, Chris Gennings, Steve Berggren, Paul Lichtenstein, Henrik Anckarsäter, Kristiina Tammimies, Sven Bölte
Genetic and environmental factors contribute to the etiologies of autism spectrum disorder (ASD), but evidence of specific environmental exposures and susceptibility windows is limited. Here we study monozygotic and dizygotic twins discordant for ASD to test whether fetal and postnatal metal dysregulation increases ASD risk. Using validated tooth-matrix biomarkers, we estimate pre- and post-natal exposure profiles of essential and toxic elements. Significant divergences are apparent in metal uptake between ASD cases and their control siblings, but only during discrete developmental periods...
June 1, 2017: Nature Communications
https://www.readbyqxmd.com/read/28567415/neurodevelopmental-disorders-and-environmental-toxicants-epigenetics-as-an-underlying-mechanism
#11
REVIEW
Nguyen Quoc Vuong Tran, Kunio Miyake
The increasing prevalence of neurodevelopmental disorders, especially autism spectrum disorders (ASD) and attention deficit hyperactivity disorder (ADHD), calls for more research into the identification of etiologic and risk factors. The Developmental Origin of Health and Disease (DOHaD) hypothesizes that the environment during fetal and childhood development affects the risk for many chronic diseases in later stages of life, including neurodevelopmental disorders. Epigenetics, a term describing mechanisms that cause changes in the chromosome state without affecting DNA sequences, is suggested to be the underlying mechanism, according to the DOHaD hypothesis...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28562247/neurodevelopment-the-impact-of-nutrition-and-inflammation-during-preconception-and-pregnancy-in-low-resource-settings
#12
REVIEW
Betty R Vohr, Elysia Poggi Davis, Christine A Wanke, Nancy F Krebs
The rapid pace of fetal development by far exceeds any other stage of the life span, and thus, environmental influences can profoundly alter the developmental course. Stress during the prenatal period, including malnutrition and inflammation, impact maternal and fetal neurodevelopment with long-term consequences for physical and mental health of both the mother and her child. One primary consequence of maternal malnutrition, inflammation, and other sources of prenatal stress is a poor birth outcome, such as prematurity or growth restriction...
April 2017: Pediatrics
https://www.readbyqxmd.com/read/28542383/performance-in-eyeblink-conditioning-is-age-and-sex-dependent
#13
Karolina Löwgren, Rasmus Bååth, Anders Rasmussen, Henk-Jan Boele, Sebastiaan K E Koekkoek, Chris I De Zeeuw, Germund Hesslow
A growing body of evidence suggests that the cerebellum is involved in both cognition and language. Abnormal cerebellar development may contribute to neurodevelopmental disorders such as attention deficit hyperactivity disorder (ADHD), autism, fetal alcohol syndrome, dyslexia, and specific language impairment. Performance in eyeblink conditioning, which depends on the cerebellum, can potentially be used to clarify the neural mechanisms underlying the cerebellar dysfunction in disorders like these. However, we must first understand how the performance develops in children who do not have a disorder...
2017: PloS One
https://www.readbyqxmd.com/read/28533516/asd-restricted-and-repetitive-behaviors-associated-at-17q21-33-genes-prioritized-by-expression-in-fetal-brains
#14
R M Cantor, L Navarro, H Won, R L Walker, J K Lowe, D H Geschwind
Autism spectrum disorder (ASD) is a behaviorally defined condition that manifests in infancy or early childhood as deficits in communication skills and social interactions. Often, restricted and repetitive behaviors (RRBs) accompany this disorder. ASD is polygenic and genetically complex, so we hypothesized that focusing analyses on intermediate core component phenotypes, such as RRBs, can reduce genetic heterogeneity and improve statistical power. Applying this approach, we mined Caucasian genome-wide association studies (GWAS) data from two of the largest ASD family cohorts, the Autism Genetics Resource Exchange and Autism Genome Project (AGP)...
May 23, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28521112/prevalence-of-externalizing-disorders-and-autism-spectrum-disorder-among-children-with-fetal-alcohol-spectrum-disorder-systematic-review-and-meta-analysis
#15
Shannon Lange, Jürgen Rehm, Evdokia Anagnostou, Svetlana Popova
Due to their central nervous system impairments, children with Fetal Alcohol Spectrum Disorder (FASD) commonly exhibit externalizing behaviours such as hyperactivity, impulsivity, and/or delinquency. The purpose of the current study was to estimate the prevalence of neurodevelopmental disorders with prominent externalizing behaviours, namely Attention-Deficit Hyperactivity Disorder (ADHD), Conduct Disorder (CD), Oppositional Defiant Disorder (ODD), as well as Autism Spectrum Disorder (ASD) among children with FASD...
May 18, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28504308/brainstem-as-a-developmental-gateway-to-social-attention
#16
Ronny Geva, Ayelet Dital, Dan Ramon, Jessica Yarmolovsky, Maor Gidron, Jacob Kuint
BACKGROUND: Evolution preserves social attention due to its key role in supporting survival. Humans are attracted to social cues from infancy, but the neurobiological mechanisms for the development of social attention are unknown. An evolutionary-based, vertical-hierarchical theoretical model of self-regulation suggests that neonatal brainstem inputs are key for the development of well-regulated social attention. METHODS: Neonates born preterm (N = 44, GA 34 w...
May 15, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28490020/maternal-inflammation-results-in-altered-tryptophan-metabolism-in-rabbit-placenta-and-fetal-brain
#17
Monica Williams, Zhi Zhang, Elizabeth Nance, Julia L Drewes, Wojciech G Lesniak, Sarabdeep Singh, Diane C Chugani, Kannan Rangaramanujam, David R Graham, Sujatha Kannan
Maternal inflammation has been linked to neurodevelopmental and neuropsychiatric disorders such as cerebral palsy, schizophrenia, and autism. We had previously shown that intrauterine inflammation resulted in a decrease in serotonin, one of the tryptophan metabolites, and a decrease in serotonin fibers in the sensory cortex of newborns in a rabbit model of cerebral palsy. In this study, we hypothesized that maternal inflammation results in alterations in tryptophan pathway enzymes and metabolites in the placenta and fetal brain...
May 11, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28476693/oxytocin-administration-during-spontaneous-labor-guidelines-for-clinical-practice-chapter%C3%A2-6-fetal-neonatal-and-pediatric-risks-and-adverse-effects-of-using-oxytocin-augmentation-during-spontaneous-labor
#18
A Burguet, A Rousseau
No abstract text is available yet for this article.
May 2, 2017: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/28476691/oxytocin-administration-during-spontaneous-labor-guidelines-for-clinical-practice-guidelines-short-text
#19
C Dupont, M Carayol, C Le Ray, C Deneux-Tharaux, D Riethmuller
No abstract text is available yet for this article.
May 2, 2017: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/28471964/prenatal-perinatal-and-postnatal-factors-associated-with-autism-a-meta-analysis
#20
REVIEW
Chengzhong Wang, Hua Geng, Weidong Liu, Guiqin Zhang
BACKGROUND: The aim of this meta-analysis was to investigate the prenatal, perinatal, and postnatal risk factors for children autism. METHODS: PubMed, Embase, Web of Science were used to search for studies that examined the prenatal, perinatal, and postnatal risk factors for children autism. A fixed-effects model or random-effects model was used to pool the overall effect estimates. RESULTS: Data from 37,634 autistic children and 12,081,416 nonautistic children enrolled in 17 studies were collated...
May 2017: Medicine (Baltimore)
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