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Autism pregnancy

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https://www.readbyqxmd.com/read/29146047/maternal-immune-activation-delays-excitatory-to-inhibitory-gamma-aminobutyric-acid-switch-in-offspring
#1
Irene Corradini, Elisa Focchi, Marco Rasile, Raffaella Morini, Genni Desiato, Romana Tomasoni, Michela Lizier, Elsa Ghirardini, Riccardo Fesce, Diego Morone, Isabella Barajon, Flavia Antonucci, Davide Pozzi, Michela Matteoli
BACKGROUND: The association between maternal infection and neurodevelopmental defects in progeny is well established, although the biological mechanisms and the pathogenic trajectories involved have not been defined. METHODS: Pregnant dams were injected intraperitoneally at gestational day 9 with polyinosinic:polycytidylic acid. Neuronal development was assessed by means of electrophysiological, optical, and biochemical analyses. RESULTS: Prenatal exposure to polyinosinic:polycytidylic acid causes an imbalanced expression of the Na(+)-K(+)-2Cl(-) cotransporter 1 and the K(+)-Cl(-) cotransporter 2 (KCC2)...
November 14, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/29139169/sex-differences-in-the-phagocytic-and-migratory-activity-of-microglia-and-their-impairment-by-palmitic-acid
#2
Natalia Yanguas-Casás, Andrea Crespo-Castrillo, Maria L de Ceballos, Julie A Chowen, Iñigo Azcoitia, Maria Angeles Arevalo, Luis M Garcia-Segura
Sex differences in the incidence, clinical manifestation, disease course, and prognosis of neurological diseases, such as autism spectrum disorders or Alzheimer's disease, have been reported. Obesity has been postulated as a risk factor for cognitive decline and Alzheimer's disease and, during pregnancy, increases the risk of autism spectrum disorders in the offspring. Obesity is associated with increased serum and brain levels of free fatty acids, such as palmitic acid, which activate microglial cells triggering a potent inflammatory cascade...
November 15, 2017: Glia
https://www.readbyqxmd.com/read/29134693/microglia-from-offspring-of-dams-with-allergic-asthma-exhibit-epigenomic-alterations-in-genes-dysregulated-in-autism
#3
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/29125540/is-high-folic-acid-intake-a-risk-factor-for-autism-a-review
#4
REVIEW
Darrell Wiens, M Catherine DeSoto
Folate is required for metabolic processes and neural development. Insuring its adequate levels for pregnant women through supplementation of grain-based foods with synthetic folic acid (FA) in order to prevent neural tube defects has been an ongoing public health initiative. However, because women are advised to take multivitamins containing FA before and throughout pregnancy, the supplementation together with natural dietary folates has led to a demographic with high and rising serum levels of unmetabolized FA...
November 10, 2017: Brain Sciences
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/29120534/joint-effects-of-prenatal-air-pollutant-exposure-and-maternal-folic-acid-supplementation-on-risk-of-autism-spectrum-disorder
#6
Amanda J Goodrich, Heather E Volk, Daniel J Tancredi, Rob McConnell, Fred W Lurmann, Robin L Hansen, Rebecca J Schmidt
Independent studies report that periconceptional folic acid (FA) may decrease the risk of autism spectrum disorder (ASD) while exposure to air pollution may increase ASD risk. We examined the joint effects of gestational FA and air pollution exposures in association with ASD. We studied 346 ASD cases and 260 typically developing controls from the CHARGE case-control study. Self-reported FA intake for each month of pregnancy was quantified. Estimates of exposure to near roadway air pollution (NRP) and criteria air pollutant measures were assigned based on maternal residential history...
November 9, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/29104681/association-between-beta-sympathomimetic-tocolysis-and-risk-of-autistic-spectrum-disorders-behavioural-and-developmental-outcome-in-toddlers
#7
Mengühan Araz Altay, Işık Görker, Rakhshanda Aslanova, Leyla Bozatlı, Nesrin Turan, Petek Balkanlı Kaplan
AIM: To investigate whether maternal intravenous beta-mimetic tocolytic therapy increases the risk of autistic spectrum disorders (ASD) and poorer behavioural and developmental outcomes. METHOD: Our study is a prospective case-control study among 90 children between 1.5 and three years old. Cases (n = 46) were toddlers with betamimetic tocolytic exposure; control group toddlers (n = 44) were tocolytic untreated. Treated and untreated groups were also divided into subgroups: term and preterm delivered...
October 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29099558/antidepressant-exposure-during-pregnancy-and-risk-of-autism-in-the-offspring-2-do-the-new-studies-add-anything-new
#8
Chittaranjan Andrade
BACKGROUND: During the past year, at least 5 new studies, all observational in design, examined the risk of autism spectrum disorder (ASD) in children exposed to antidepressant medication in utero. These studies had not found inclusion in the many systematic reviews and meta-analyses that had also been published in the past year. METHODS: Noteworthy methods and findings of the new studies are summarized. One of these studies is examined in detail to help the reader understand methodological and conceptual issues that are critical in the field...
September 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/29097857/like-the-eye-of-the-tiger-inpatient-psychiatric-facility-exclusionary-criteria-and-its-knockout-of-the-emergency-psychiatric-patient
#9
Veronica Tucci, John Liu, Anu Matorin, Asim Shah, Nidal Moukaddam
Context: Over 6% of all emergency department (ED) visits in the United States involve primary mental health or behavioral issues. The patients are stabilized in the ED but frequently require admission to an inpatient psychiatric unit or institution for longer term treatment and management. To facilitate this process, an emergency physician (EP) must first "medically clear" the patient as stable for transfer. At present, there is no interdisciplinary consensus regarding the necessary elements of the medical clearance or stability assessment process...
October 2017: Journal of Emergencies, Trauma, and Shock
https://www.readbyqxmd.com/read/29091821/are-gastrointestinal-and-sleep-problems-associated-with-behavioral-symptoms-of-autism-spectrum-disorder
#10
Xiao-Lei Yang, Shuang Liang, Ming-Yang Zou, Cai-Hong Sun, Pan-Pan Han, Xi-Tao Jiang, Wei Xia, Li-Jie Wu
Many children with autism spectrum disorder (ASD) suffer from concurrent medical symptoms, including gastrointestinal (GI) and sleeping problems. However, there is limited information on the correlation between co-morbidities and autistic behavioral symptoms. In this study, we estimated the prevalence of GI and sleep problems in Chinese ASD children, examined the impacts of GI and sleep problems on autistic behavioral symptoms, and investigated the factors associated with GI and sleep problems. The survey included 169 ASD and 172 healthy children...
October 24, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29033484/congenital-malformation-and-autism-spectrum-disorder-insight-from-a-rat-model-of-autism-spectrum-disorder
#11
Rakesh K Ruhela, Phulen Sarma, Shringika Soni, Ajay Prakash, Bikash Medhi
AIMS AND OBJECTIVES: The primary aim was an evaluation of the pattern of gross congenital malformations in a rat model of autism spectrum disorder (ASD) and the secondary aim was characterization of the most common gross malformation observed. MATERIALS AND METHODS: In females, the late pro-oestrous phase was identified by vaginal smear cytology, and then, they were allowed to mate at 1:3 ratio (male: female). Pregnancy was confirmed by the presence of sperm plug in the vagina and presence of sperm in the vaginal smear...
May 2017: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/29026508/the-association-between-maternal-use-of-folic-acid-supplements-during-pregnancy-and-risk-of-autism-spectrum-disorders-in-children-a-meta-analysis
#12
Meiyun Wang, Kaiqin Li, Dongmei Zhao, Ling Li
Previous reviews have been conducted to evaluate the association between maternal use of folic acid supplements during pregnancy and risk of autism spectrum disorders (ASD) in children, with no definitive conclusion. We therefore conducted a more comprehensive meta-analysis to reassess the relationship between folic acid and the risk of ASD. The electronic databases PubMed, Web of Knowledge, and Wanfang Data were carefully searched to find eligible studies as recent as March 2017. A random effects model was used to combine the relative risk (RR) with 95% confidence intervals (CI)...
2017: Molecular Autism
https://www.readbyqxmd.com/read/29020136/traffic-related-air-pollution-and-autism-spectrum-disorder-a-population-based-nested-case-control-study-in-israel
#13
Raanan Raz, Hagai Levine, Ofir Pinto, David M Broday, Yuval, Marc G Weisskopf
Accumulating evidence suggests that perinatal air pollutant exposures are associated with increased risk of autism spectrum disorder (ASD), but evidence outside the US for traffic pollutants is inconclusive. We assessed the association between NO2, a traffic pollution tracer, and risk of ASD. We conducted a nested case-control study among the entire population of children born 2005-2009 in the central coastal area of Israel. Cases were identified through the National Insurance Institute of Israel (n = 2,098)...
August 17, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28994903/antidepressant-exposure-during-pregnancy-and-risk-of-autism-in-the-offspring-1-meta-review-of-meta-analyses
#14
Chittaranjan Andrade
There are no randomized controlled trials of antidepressant drugs to treat depression, or to prevent relapse into depression, during pregnancy; therefore, the safety of antidepressant drug exposure during pregnancy is based on evidence from case-control or cohort studies. Many of these observational studies, during the past decade, examined the risk of autism spectrum disorder (ASD) in exposed offspring. Different studies using different methods and examining different periods of antidepressant exposure before and during pregnancy obtained different results...
September 26, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28993711/social-impairments-in-autism-spectrum-disorder-are-related-to-maternal-immune-history-profile
#15
S Patel, A Masi, R C Dale, A J O Whitehouse, I Pokorski, G A Alvares, I B Hickie, E Breen, A J Guastella
Maternal immune activation has been highlighted as a factor that might increase the risk and severity of autism spectrum disorder (ASD) in children. Preclinical animal evidence shows that immune activation in mothers during pregnancy causes ASD-like behavioural traits in offspring. To this point, there has been no investigation of whether immune system activation in human mothers during pregnancy is associated with more severe symptoms in children with ASD. In this study, data from an existing ASD cohort (N=220) were analysed to investigate whether immune conditions in the mother were associated with greater severity of autism-related symptoms...
October 10, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28984369/maternal-multivitamin-intake-plasma-folate-and-vitamin-b12-levels-and-autism-spectrum-disorder-risk-in-offspring
#16
Ramkripa Raghavan, Anne W Riley, Heather Volk, Deanna Caruso, Lynn Hironaka, Laura Sices, Xiumei Hong, Guoying Wang, Yuelong Ji, Martha Brucato, Anastacia Wahl, Tom Stivers, Colleen Pearson, Barry Zuckerman, Elizabeth A Stuart, Rebecca Landa, M Daniele Fallin, Xiaobin Wang
BACKGROUND: To examine the prospective association between multivitamin supplementation during pregnancy and biomarker measures of maternal plasma folate and vitamin B12 levels at birth and child's Autism Spectrum Disorder (ASD) risk. METHODS: This report included 1257 mother-child pairs, who were recruited at birth and prospectively followed through childhood at the Boston Medical Center. ASD was defined from diagnostic codes in electronic medical records. Maternal multivitamin supplementation was assessed via questionnaire interview; maternal plasma folate and B12 were measured from samples taken 2-3 days after birth...
October 6, 2017: Paediatric and Perinatal Epidemiology
https://www.readbyqxmd.com/read/28982961/mechanisms-in-endocrinology-maternal-thyroid-dysfunction-during-pregnancy-and-behavioural-and-psychiatric-disorders-of-children-a-systematic-review
#17
REVIEW
Dagnachew Muluye Fetene, Kim S Betts, Rosa Alati
BACKGROUND: Maternal thyroid dysfunction during pregnancy may lead to persistent neurodevelopmental disorders in the offspring appearing in later life. This study aimed to review the available evidence concerning the relationship between maternal thyroid status during pregnancy and offspring behavioural and psychiatric disorders. METHODS: Systematic electronic database searches were conducted using PubMed, Embase, PsycNET, Scopus, Google Scholar and Cochrane library...
November 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28982838/hypertensive-disorders-of-pregnancy-and-risk-of-neurodevelopmental-disorders-in-the-offspring-a-systematic-review-and-meta-analysis-protocol
#18
Gillian M Maher, Gerard W O'Keeffe, Louise C Kenny, Patricia M Kearney, Ted G Dinan, Ali S Khashan
INTRODUCTION: Hypertensive disorders of pregnancy (HDPs), that is chronic hypertension, gestational hypertension, pre-eclampsia (de novo or superimposed on chronic hypertension) and white coat hypertension, affect approximately 5%-15% of pregnancies. HDP exposure has been linked to an increased risk of autism spectrum disorder, attention deficit/hyperactivity disorder and other neurodevelopmental disorders in children. However, findings are inconsistent, and a clear consensus on the impact of HDPs on the risk of neurodevelopmental disorders is needed...
October 5, 2017: BMJ Open
https://www.readbyqxmd.com/read/28978695/antenatal-nutritional-supplementation-and-autism-spectrum-disorders-in-the-stockholm-youth-cohort-population-based-cohort-study
#19
Elizabeth A DeVilbiss, Cecilia Magnusson, Renee M Gardner, Dheeraj Rai, Craig J Newschaffer, Kristen Lyall, Christina Dalman, Brian K Lee
Objective To determine whether nutritional supplementation during pregnancy is associated with a reduced risk of autism spectrum disorder (ASD) with and without intellectual disability in offspring.Design Observational prospective cohort study using multivariable logistic regression, sibling controls, and propensity score matching.Setting Stockholm County, Sweden.Participants 273 107 mother-child pairs identified through population registers. The study sample was restricted to children who were aged 4 to 15 years by the end of follow-up on 31 December 2011 and were born between 1996 and 2007...
October 4, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28975539/exposure-to-hypertensive-disorders-of-pregnancy-increases-the-risk-of-autism-spectrum-disorder-in-affected-offspring
#20
Eileen A Curran, Gerard W O'Keeffe, Ann Marie Looney, Gerard Moloney, Shane V Hegarty, Deirdre M Murray, Ali S Khashan, Louise C Kenny
There is growing awareness that prenatal adversity may increase the risk of autism spectrum disorder (ASD). Here, we examined the association between hypertensive disorders of pregnancy (HDP) and ASD risk at 7 years of age using the Millennium Cohort Study (MCS), a representative cohort of 13,192 children born in the UK from 2000 to 2001. We also sought to examine cytokine expression in the serum of women with pre-eclampsia, which is the most common HDP, and whether exposure of foetal neurons to this serum could change patterns of neuronal growth...
October 3, 2017: Molecular Neurobiology
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