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Autism pregnancy

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https://www.readbyqxmd.com/read/28635121/exposure-to-sodium-valproate-during-pregnancy-facial-features-and-signs-of-autism
#1
Rachel Stadelmaier, Hanah Nasri, Curtis K Deutsch, Margaret Bauman, Anne Hunt, Christopher J Stodgell, Jane Adams, Lewis B Holmes
BACKGROUND: Valproic acid (VPA) is the most teratogenic anticonvulsant drug in clinical use today. Children exposed prenatally to VPA have previously been shown to have dysmorphic craniofacial features, identified subjectively but not by anthropometric methods. Exposure to VPA has also been associated with an increased frequency of autism spectrum disorder (ASD). An increased cephalic index (the ratio of the cranial lateral width to the cranial anterior-posterior length) has been observed in children with ASD...
June 21, 2017: Birth defects research
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
#2
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...
June 6, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28590943/suppressed-play-behaviour-and-decreased-oxytocin-receptor-binding-in-the-amygdala-after-prenatal-exposure-to-low-dose-valproic-acid
#3
Freja Bertelsen, Davide Folloni, Arne Møller, Anne M Landau, Jørgen Scheel-Krüger, Michael Winterdahl
To better understand the role of the neuropeptide oxytocin in autism spectrum disorder (ASD), we investigated potential deficits in social play behaviour and oxytocin receptor (OXTR) density alterations in the amygdala in a rodent model of ASD. Pregnant rats were injected daily with 20 or 100 mg/kg valproic acid (VPA) or saline from day 12 until the end of pregnancy. The number of pinning and pouncing events was assessed at postnatal days 29-34. Brains from male offspring (n=7/group) were removed at postnatal day 50...
June 6, 2017: Behavioural Pharmacology
https://www.readbyqxmd.com/read/28572274/caspr2-autoantibodies-are-raised-during-pregnancy-in-mothers-of-children-with-mental-retardation-and-disorders-of-psychological-development-but-not-autism
#4
Ester Coutinho, Leslie Jacobson, Marianne Giørtz Pedersen, Michael Eriksen Benros, Bent Nørgaard-Pedersen, Preben Bo Mortensen, Paul J Harrison, Angela Vincent
BACKGROUND, METHODS AND OBJECTIVES: Maternal autoantibodies to neuronal proteins may be one cause of neurodevelopmental disorders. This exploratory study used the Danish archived midgestational sera and their nationwide registers to search for antibodies to the N-methyl-D-aspartate receptor (NMDAR) and contactin-associated protein-like 2 (CASPR2) in maternal sera, and to relate them to subsequent psychiatric diagnoses in the woman or her child. RESULTS: In a sample of 192 women, there was no association between antibody status and subsequent psychosis in the mothers...
June 1, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28562247/neurodevelopment-the-impact-of-nutrition-and-inflammation-during-preconception-and-pregnancy-in-low-resource-settings
#5
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/28557711/prenatal-residential-proximity-to-agricultural-pesticide-use-and-iq-in-7-year-old-children
#6
Robert B Gunier, Asa Bradman, Kim G Harley, Katherine Kogut, Brenda Eskenazi
BACKGROUND: Residential proximity to agricultural pesticide use has been associated with neural tube defects and autism, but more subtle outcomes such as cognition have not been studied. OBJECTIVES: We evaluated the relationship between prenatal residential proximity to agricultural use of potentially neurotoxic pesticides and neurodevelopment in 7-year-old children. METHODS: Participants included mothers and children ([Formula: see text]) living in the agricultural Salinas Valley of California enrolled in the Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS) study...
May 25, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28536957/brief-report-association-between-autism-spectrum-disorder-gastrointestinal-problems-and-perinatal-risk-factors-within-sibling-pairs
#7
Johan Isaksson, Erik Pettersson, Elzbieta Kostrzewa, Rochellys Diaz Heijtz, Sven Bölte
Autism spectrum disorder (ASD) has been associated with gastrointestinal (GI) problems, but the nature of this association is unclear. Parents to siblings, concordant or discordant for ASD (N = 217), participated in a web survey covering mother's weight gain during pregnancy, maternal viral/bacterial infection and use of antibiotics, duration of breastfeeding, mode of delivery, birth weight and child GI problems. ASD was associated with GI problems and perinatal environmental risk, based on a summation of maternal infection and antibiotic use during pregnancy and/or the breastfeeding period...
May 23, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28531286/is-foetal-hyperexposure-to-androgens-a-cause-of-pcos
#8
Panagiota Filippou, Roy Homburg
BACKGROUND: Polycystic ovary syndrome (PCOS) is the most common endocrinopathy affecting reproductive-aged women. The pathophysiology of this syndrome is still not completely understood but recent evidence suggests that the intra-uterine environment may be a key factor in the pathogenesis of PCOS, in particular, hyperexposure of the foetus to androgens. High concentrations of maternal serum testosterone during pregnancy have been shown to influence behaviour during childhood, the prevalence of autism disorders and anti-Mullerian hormone (AMH) concentrations in adolescence...
May 20, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28528584/autism-risk-following-antidepressant-medication-during-pregnancy
#9
A Viktorin, R Uher, A Reichenberg, S Z Levine, S Sandin
BACKGROUND: Previous studies have examined if maternal antidepressant medication during pregnancy increase the risk of autism spectrum disorder (ASD) in the offspring, but the results have been conflicting. METHODS: In a population-based cohort of 179 007 children born in 2006 and 2007 and followed through 2014 when aged 7 and 8, we estimated relative risks (RRs) of ASD and 95% confidence intervals (CIs) from Cox regression in children exposed to any antidepressant medication during pregnancy, and nine specific antidepressant drugs...
May 22, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28524073/parents-attitudes-toward-clinical-genetic-testing-for-autism-spectrum-disorder-data-from-a-norwegian-sample
#10
Jarle Johannessen, Terje Nærland, Sigrun Hope, Tonje Torske, Anne Lise Høyland, Jana Strohmaier, Arvid Heiberg, Marcella Rietschel, Srdjan Djurovic, Ole A Andreassen
Clinical genetic testing (CGT) of children with autism spectrum disorder (ASD) may have positive and negative effects. Knowledge about parents' attitudes is needed to ensure good involvement of caregivers, which is crucial for accurate diagnosis and effective clinical management. This study aimed to assess parents' attitudes toward CGT for ASD. Parent members of the Norwegian Autism Society were given a previously untested questionnaire and 1455 answered. Linear regression analyses were conducted to evaluate contribution of parent and child characteristics to attitude statements...
May 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28501654/urinary-organophosphate-insecticide-metabolite-concentrations-during-pregnancy-and-children-s-interpersonal-communication-repetitive-and-stereotypic-behaviors-at-8-years-of-age-the-home-study
#11
Marisa E Millenson, Joseph M Braun, Antonia M Calafat, Dana Boyd Barr, Yen-Tsung Huang, Aimin Chen, Bruce P Lanphear, Kimberly Yolton
BACKGROUND: Prenatal exposure to organophosphate insecticides may be associated with autism spectrum disorders and related behaviors. This association may be modified by single nucleotide polymorphisms in the paraoxonase (PON1) enzyme. OBJECTIVE: We examined the relationship of prenatal organophosphate insecticide biomarkers with reciprocal social, repetitive, and stereotypic behaviors in 8-year old children, and modification of this relationship by child PON1 polymorphisms...
August 2017: Environmental Research
https://www.readbyqxmd.com/read/28496999/the-clinical-manifestations-and-genetic-implications-of-baraitser-winter-syndrome-type-2
#12
Tanya C Allawh, Barry Scott Brown
An 18-year-old Caucasian male was born by cesarean section weighing 2.6 kg (5 lb 14 oz) at birth after an uncomplicated pregnancy with no perinatal complications. Around 4 to 5 months of age, the patient's mother initially became concerned as he was experiencing signs of developmental delay and a mild floppy tone, in addition to facial features that resembled some form of mental retardation. The patient's older brother also experienced similar developmental symptoms and facial features that presented around the same age period as our patient...
June 2017: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/28495514/neurobehavioral-risks-of-ssris-in-pregnancy-comparing-human-and-animal-data
#13
REVIEW
Asher Ornoy
During the last twenty years, in spite of extensive literature regarding the use of SSRIs in pregnancy, confusion still exists as to possible long-term risks of these drugs on the offspring. Possible negative effects relate to neurodevelopmental outcome and association with Autism Spectrum Disorder (ASD). Most neurodevelopmental follow up studies did not find significant cognitive impairment except from some apparently transient, gross motor delay and slight impairment of language abilities. The literature on the possible association of SSRIs with ASD is inconsistent, and if an association exists it is apparently throughout pregnancy...
May 8, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28493861/maternal-pre-pregnancy-obesity-and-neuropsychological-development-in-pre-school-children-a-prospective-cohort-study
#14
Maribel Casas, Joan Forns, David Martínez, Mònica Guxens, Ana Fernandez-Somoano, Jesus Ibarluzea, Nerea Lertxundi, Mario Murcia, Marisa Rebagliato, Adonina Tardon, Jordi Sunyer, Martine Vrijheid
BackgroundMaternal pre-pregnancy obesity may impair infant neuropsychological development, but it is unclear whether intrauterine or confounding factors drive this association.MethodsWe assessed whether maternal pre-pregnancy obesity was associated with neuropsychological development in 1,827 Spanish children. At 5 years, cognitive and psychomotor development was assessed using McCarthy Scales of Children's Abilities, attention deficit hyperactivity disorder (ADHD) symptoms using the Criteria of Diagnostic and Statistical Manual of Mental Disorders, and autism spectrum disorder symptoms using the Childhood Asperger Syndrome Test...
June 7, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28486989/postnatal-treatment-using-curcumin-supplements-to-amend-the-damage-in-vpa-induced-rodent-models-of-autism
#15
Maha Al-Askar, Ramesa Shafi Bhat, Manar Selim, Laila Al-Ayadhi, Afaf El-Ansary
BACKGROUND: Valproic acid (VPA) is used as a first-line antiepileptic agent and is undergoing clinical trials for use as a treatment for many disorders. Mothers undergoing VPA treatment during early pregnancy reportedly show increased rates of autism among their offspring. The benefits of curcumin supplementation were investigated using an animal model of VPA-induced autism. METHODS: The study was performed using a rodent model of autism by exposing rat fetuses to valproic acid (VPA) on the 12...
May 10, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28472621/the-valproic-acid-induced-rodent-model-of-autism
#16
REVIEW
Chiara Nicolini, Margaret Fahnestock
Autism is a lifelong neurodevelopmental disorder characterized by impairments in social communication and interaction and by repetitive patterns of behavior, interests and activities. While autism has a strong genetic component, environmental factors including toxins, pesticides, infection and drugs are known to confer autism susceptibility, likely by inducing epigenetic changes. In particular, exposure to valproic acid (VPA) during pregnancy has been demonstrated to increase the risk of autism in children...
May 2, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28448694/the-joint-effect-of-air-pollution-exposure-and-copy-number-variation-on-risk-for-autism
#17
Dokyoon Kim, Heather Volk, Santhosh Girirajan, Sarah Pendergrass, Molly A Hall, Shefali S Verma, Rebecca J Schmidt, Robin L Hansen, Debashis Ghosh, Yunin Ludena-Rodriguez, Kyoungmi Kim, Marylyn D Ritchie, Irva Hertz-Picciotto, Scott B Selleck
Autism spectrum disorder is a complex trait with a high degree of heritability as well as documented susceptibility from environmental factors. In this study the contributions of copy number variation, exposure to air pollutants, and the interaction between the two on autism risk, were evaluated in the population-based case-control Childhood Autism Risks from Genetics and Environment (CHARGE) Study. For the current investigation, we included only those CHARGE children (a) who met criteria for autism or typical development and (b) for whom our team had conducted both genetic evaluation of copy number burden and determination of environmental air pollution exposures based on mapping addresses from the pregnancy and early childhood...
April 27, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28448061/grand-maternal-smoking-in-pregnancy-and-grandchild-s-autistic-traits-and-diagnosed-autism
#18
Jean Golding, Genette Ellis, Steven Gregory, Karen Birmingham, Yasmin Iles-Caven, Dheeraj Rai, Marcus Pembrey
Although there is considerable research into the genetic background of autism spectrum disorders, environmental factors are likely to contribute to the variation in prevalence over time. Rodent experiments indicate that environmental exposures can have effects on subsequent generations, and human studies indicate that parental prenatal exposures may play a part in developmental variation. Here we use the Avon Longitudinal Study of Parents and Children (ALSPAC) to test the hypothesis that if the mother or father (F1) had been exposed to their own mother's (F0) smoking during pregnancy, the offspring (F2) would be at increased risk of autism...
April 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28437536/influenza-vaccination-in-the-first-trimester-of-pregnancy-and-risk-of-autism-spectrum-disorder
#19
Alberto Donzelli, Alessandro Schivalocchi, Alessandro Battaggia
No abstract text is available yet for this article.
June 1, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28437533/influenza-vaccination-in-the-first-trimester-of-pregnancy-and-risk-of-autism-spectrum-disorder
#20
Brian S Hooker
No abstract text is available yet for this article.
June 1, 2017: JAMA Pediatrics
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