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https://www.readbyqxmd.com/read/29229361/a-literature-review-on-maternal-fetal-and-reproductive-disorders-of-toxoplasma-gondii-infection
#1
REVIEW
Shirzad Fallahi, Ali Rostami, Malihe Nourollahpour Shiadeh, Hamed Behniafar, Shahrokh Paktinat
BACKGROUND: Toxoplasma gondii infection is one of the most prevalent infectious disease with worldwide distribution. Congenital toxoplasmosis is annually responsible for 1.20 million disability-adjusted life years around the world, but often it is overlooked many countries. METHODS: We performed an updated review to summarize the current researches on fetal, neonatal and maternal consequences of T. gondii infection and also adverse effects of toxoplasmosis on women reproductive organs...
December 8, 2017: Journal of Gynecology Obstetrics and Human Reproduction
https://www.readbyqxmd.com/read/29212472/autism-risk-classification-using-placental-chorionic-surface-vascular-network-features
#2
Jen-Mei Chang, Hui Zeng, Ruxu Han, Ya-Mei Chang, Ruchit Shah, Carolyn M Salafia, Craig Newschaffer, Richard K Miller, Philip Katzman, Jack Moye, Margaret Fallin, Cheryl K Walker, Lisa Croen
BACKGROUND: Autism Spectrum Disorder (ASD) is one of the fastest-growing developmental disorders in the United States. It was hypothesized that variations in the placental chorionic surface vascular network (PCSVN) structure may reflect both the overall effects of genetic and environmentally regulated variations in branching morphogenesis within the conceptus and the fetus' vital organs. This paper provides sound evidences to support the study of ASD risks with PCSVN through a combination of feature-selection and classification algorithms...
December 6, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/29137973/exposure-to-polybrominated-diphenyl-ethers-pbdes-and-child-behavior-current-findings-and-future-directions
#3
REVIEW
Ann M Vuong, Kimberly Yolton, Kim N Dietrich, Joseph M Braun, Bruce P Lanphear, Aimin Chen
Polybrominated diphenyl ethers (PBDEs) are recognized neurotoxicants, but the extent to which PBDEs influence various domains of behavior in children is not fully understood. As such, we reviewed epidemiologic studies published to date to provide an overview of the current state of knowledge on PBDEs' potential role in behavioral development. We identified 19 epidemiologic studies reporting on associations of prenatal and childhood concentrations of PBDEs with behaviors assessed in children from 1 to 12years, including executive function, attention, externalizing and internalizing behaviors, adaptive skills, and social behaviors/Autism Spectrum Disorder (ASD)...
November 11, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/29134693/microglia-from-offspring-of-dams-with-allergic-asthma-exhibit-epigenomic-alterations-in-genes-dysregulated-in-autism
#4
Annie Vogel Ciernia, Milo Careaga, Janine M LaSalle, Paul Ashwood
Dysregulation in immune responses during pregnancy increases the risk of a having a child with an autism spectrum disorder (ASD). Asthma is one of the most common chronic diseases among pregnant women, and symptoms often worsen during pregnancy. We recently developed a mouse model of maternal allergic asthma (MAA) that induces changes in sociability, repetitive, and perseverative behaviors in the offspring. Since epigenetic changes help a static genome adapt to the maternal environment, activation of the immune system may epigenetically alter fetal microglia, the brain's resident immune cells...
November 14, 2017: Glia
https://www.readbyqxmd.com/read/29122491/inflammation-and-autism-from-maternal-gut-to-fetal-brain
#5
Ivan Osokine, Adrian Erlebacher
Maternal immune activation (MIA) during pregnancy is associated with an increased risk of behavioral disorders in the offspring of affected mothers. Two recent studies highlight how maternal inflammation disrupts inhibitory interneuron networks and suggest that the maternal gut microbiome may be a contributing risk factor for MIA-induced behavioral abnormalities.
November 6, 2017: Trends in Molecular Medicine
https://www.readbyqxmd.com/read/29096641/acute-in-utero-exposure-to-lipopolysaccharide-induces-inflammation-in-the-pre-and-postnatal-brain-and-alters-the-glial-cytoarchitecture-in-the-developing-amygdala
#6
Elaine O'Loughlin, Janelle M P Pakan, Deniz Yilmazer-Hanke, Kieran W McDermott
BACKGROUND: Maternal immune activation (MIA) is a risk factor for neurodevelopmental disorders such as autism and schizophrenia, as well as seizure development. The amygdala is a brain region involved in the regulation of emotions, and amygdalar maldevelopment due to infection-induced MIA may lead to amygdala-related disorders. MIA priming of glial cells during development has been linked to abnormalities seen in later life; however, little is known about its effects on amygdalar biochemical and cytoarchitecture integrity...
November 2, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29073621/sexually-dimorphic-epigenetic-regulation-of-brain-derived-neurotrophic-factor-in-fetal-brain-in-the-valproic-acid-model-of-autism-spectrum-disorder
#7
Melissa A Konopko, Allison L Densmore, Bruce K Krueger
Prenatal exposure to the antiepileptic, mood-stabilizing drug, valproic acid (VPA), increases the incidence of autism spectrum disorders (ASDs); in utero administration of VPA to pregnant rodents induces ASD-like behaviors such as repetitive, stereotyped activity, and decreased socialization. In both cases, males are more affected than females. We previously reported that VPA, administered to pregnant mice at gestational day 12.5, rapidly induces a transient, 6-fold increase in BDNF (brain-derived neurotrophic factor) protein and mRNA in the fetal brain...
October 27, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/29066808/cross-tissue-integration-of-genetic-and-epigenetic-data-offers-insight-into-autism-spectrum-disorder
#8
Shan V Andrews, Shannon E Ellis, Kelly M Bakulski, Brooke Sheppard, Lisa A Croen, Irva Hertz-Picciotto, Craig J Newschaffer, Andrew P Feinberg, Dan E Arking, Christine Ladd-Acosta, M Daniele Fallin
Integration of emerging epigenetic information with autism spectrum disorder (ASD) genetic results may elucidate functional insights not possible via either type of information in isolation. Here we use the genotype and DNA methylation (DNAm) data from cord blood and peripheral blood to identify SNPs associated with DNA methylation (meQTL lists). Additionally, we use publicly available fetal brain and lung meQTL lists to assess enrichment of ASD GWAS results for tissue-specific meQTLs. ASD-associated SNPs are enriched for fetal brain (OR = 3...
October 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/29030525/neurodevelopment-at-age-10-years-of-children-born-28-weeks-with-fetal-growth-restriction
#9
MULTICENTER STUDY
Steven J Korzeniewski, Elizabeth N Allred, Robert M Joseph, Tim Heeren, Karl C K Kuban, T Michael O'Shea, Alan Leviton
OBJECTIVES: We sought to evaluate the relationships between fetal growth restriction (FGR) (both severe and less severe) and assessments of cognitive, academic, and adaptive behavior brain function at age 10 years. METHODS: At age 10 years, the Extremely Low Gestational Age Newborns Cohort Study assessed the cognitive function, academic achievement, social-communicative function, psychiatric symptoms, and overall quality of life of 889 children born before 28 weeks' gestation...
November 2017: Pediatrics
https://www.readbyqxmd.com/read/28965761/genomic-patterns-of-de-novo-mutation-in-simplex-autism
#10
Tychele N Turner, Bradley P Coe, Diane E Dickel, Kendra Hoekzema, Bradley J Nelson, Michael C Zody, Zev N Kronenberg, Fereydoun Hormozdiari, Archana Raja, Len A Pennacchio, Robert B Darnell, Evan E Eichler
To further our understanding of the genetic etiology of autism, we generated and analyzed genome sequence data from 516 idiopathic autism families (2,064 individuals). This resource includes >59 million single-nucleotide variants (SNVs) and 9,212 private copy number variants (CNVs), of which 133,992 and 88 are de novo mutations (DNMs), respectively. We estimate a mutation rate of ∼1.5 × 10(-8) SNVs per site per generation with a significantly higher mutation rate in repetitive DNA. Comparing probands and unaffected siblings, we observe several DNM trends...
October 19, 2017: Cell
https://www.readbyqxmd.com/read/28925578/combined-fetal-inflammation-and-postnatal-hypoxia-causes-myelin-deficits-and-autism-like-behavior-in-a-rat-model-of-diffuse-white-matter-injury
#11
Erik van Tilborg, E J Marijke Achterberg, Caren M van Kammen, Annette van der Toorn, Floris Groenendaal, Rick M Dijkhuizen, Cobi J Heijnen, Louk J M J Vanderschuren, Manon N J L Benders, Cora H A Nijboer
Diffuse white matter injury (WMI) is a serious problem in extremely preterm infants, and is associated with adverse neurodevelopmental outcome, including cognitive impairments and an increased risk of autism-spectrum disorders. Important risk factors include fetal or perinatal inflammatory insults and fluctuating cerebral oxygenation. However, the exact mechanisms underlying diffuse WMI are not fully understood and no treatment options are currently available. The use of clinically relevant animal models is crucial to advance knowledge on the pathophysiology of diffuse WMI, allowing the definition of novel therapeutic targets...
January 2018: Glia
https://www.readbyqxmd.com/read/28898924/prevalence-of-autism-spectrum-disorders-with-and-without-intellectual-disability-by-gestational-age-at-birth-in-the-stockholm-youth-cohort-a-register-linkage-study
#12
Sherlly Xie, Hein Heuvelman, Cecilia Magnusson, Dheeraj Rai, Kristen Lyall, Craig J Newschaffer, Christina Dalman, Brian K Lee, Kathryn Abel
BACKGROUND: Preterm birth has been linked to increased risk of autism spectrum disorders (ASD), but how this risk changes with gestational age at birth has not been well characterised, especially with regard to co-occurring intellectual disability (ID). METHODS: Register-based cohort study of singleton births in 1984-2007 in Stockholm County, Sweden (N total: 480 728; n ASD: 10 025). We assessed overall and sex-specific, gestational week-specific prevalence estimates and risk ratios of ASD with and without ID...
September 12, 2017: Paediatric and Perinatal Epidemiology
https://www.readbyqxmd.com/read/28887224/the-zebrafish-as-a-promising-tool-for-modeling-human-brain-disorders-a-review-based-upon-an-ibns-symposium
#13
REVIEW
Soaleha Shams, Jason Rihel, Jose G Ortiz, Robert Gerlai
The zebrafish represents an excellent compromise between system complexity and practical simplicity, features that make it useful for modeling and mechanistic analysis of complex brain disorders. Also promising are screens for psychoactive drugs with effects on larval and adult zebrafish behavior. This review, based upon a recent symposium held at the 2016 IBNS Congress, provides different perspectives on how the zebrafish may be utilized to advance research into human central nervous system disorders. It starts with a discussion on an important bottleneck in zebrafish research, measuring the behavior of this species (specifically shoaling), and continues with examples on research on autism spectrum disorder in larval zebrafish, on screening natural products for compounds with psychoactive properties in adult zebrafish, and on the development of a zebrafish model of fetal alcohol spectrum disorders...
September 5, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28883881/zinc-and-copper-metabolism-and-risk-of-autism-a-reply-to-sayehmiri-et-al
#14
Keith Fluegge Ba
OBJECTIVE: Sayehmiri et al. recently conducted a meta-analysis to explore the relationship between zinc and copper metabolism and autism spectrum disorders (ASD). Recent reports have elucidated a full behavioral profile of mice exposed to prenatal zinc deficiency and documented a phenotype similar to that found in autism spectrum disorders (ASD). These studies suggest that significant alterations in Zn metabolism may be an important nutritional component in the development of ASD. MATERIALS & METHODS: The idea that prenatal zinc deficiency may be to blame is cursorily challenged...
2017: Iranian Journal of Child Neurology
https://www.readbyqxmd.com/read/28864010/the-association-between-placental-histopathology-and-autism-spectrum-disorder
#15
Jennifer K Straughen, Dawn P Misra, George Divine, Ruchit Shah, Gabriela Perez, Samantha VanHorn, Victoria Onbreyt, Beata Dygulska, Rebecca Schmitt, Sanford Lederman, Pramod Narula, Carolyn M Salafia
INTRODUCTION: Research suggests that autism spectrum disorder (ASD) has its origins in utero. This study examines the association between evidence of placental histopathology and ASD. METHODS: Administrative claims data and medical records data were used to identify ASD cases (N = 55) and matched controls (N = 199) born at New York Methodist Hospital between 2007 and 2014 and subsequently seen in affiliated pediatrics clinics. Placentas from all births during this time period were reviewed as part of routine care...
September 2017: Placenta
https://www.readbyqxmd.com/read/28838601/fetal-alcohol-spectrum-disorders-what-pediatric-providers-need-to-know
#16
Angela Nash, Leah Davies
Prenatal alcohol exposure is the cause of fetal alcohol spectrum disorders (FASDs), the prevalence of which is similar to that of other developmental disabilities like Down syndrome and autism. Children, adolescents, and adults who live with the disabilities associated with prenatal alcohol exposure face extraordinary challenges throughout their lives. Pediatric providers need to be able to identify patients with FASD because early recognition and intervention is known to improve life outcomes for affected individuals...
September 2017: Journal of Pediatric Health Care
https://www.readbyqxmd.com/read/28820892/maternal-autoimmune-antibodies-alter-the-dendritic-arbor-and-spine-numbers-in-the-infragranular-layers-of-the-cortex
#17
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
#18
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
#19
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...
December 15, 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
#20
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)...
September 2017: American Journal of Medical Genetics. Part A
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