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Autism prevention

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https://www.readbyqxmd.com/read/28638324/stochastic-signatures-of-involuntary-head-micro-movements-can-be-used-to-classify-females-of-abide-into-different-subtypes-of-neurodevelopmental-disorders
#1
Elizabeth B Torres, Sejal Mistry, Carla Caballero, Caroline P Whyatt
Background: The approximate 5:1 male to female ratio in clinical detection of Autism Spectrum Disorder (ASD) prevents research from characterizing the female phenotype. Current open access repositories [such as those in the Autism Brain Imaging Data Exchange (ABIDE I-II)] contain large numbers of females to help begin providing a new characterization of females on the autistic spectrum. Here we introduce new methods to integrate data in a scale-free manner from continuous biophysical rhythms of the nervous systems and discrete (ordinal) observational scores...
2017: Frontiers in Integrative Neuroscience
https://www.readbyqxmd.com/read/28634468/fragile-x-syndrome-prevalence-treatment-and-prevention-in-china
#2
REVIEW
Manman Niu, Ying Han, Angel Belle C Dy, Junbao Du, Hongfang Jin, Jiong Qin, Jing Zhang, Qinrui Li, Randi J Hagerman
Fragile X syndrome (FXS) is the most common inherited cause of intellectual disability and the leading monogenic cause of autism spectrum disorder. Although FXS has been studied for several decades, there is relatively little basic science or clinical research being performed on FXS in China. Indeed, there is a large gap between China and Western countries in the FXS field. China has a potentially large number of FXS patients. However, many of them are underdiagnosed or even misdiagnosed, and treatments are not always administered in the Chinese population...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28624965/talking-about-death-or-suicide-prevalence-and-clinical-correlates-in-youth-with-autism-spectrum-disorder-in-the-psychiatric-inpatient-setting
#3
Lisa M Horowitz, Audrey Thurm, Cristan Farmer, Carla Mazefsky, Elizabeth Lanzillo, Jeffrey A Bridge, Rachel Greenbaum, Maryland Pao, Matthew Siegel
Little is known about suicidal ideation in youth with autism spectrum disorder (ASD), making it difficult to identify those at heightened risk. This study describes the prevalence of thoughts about death and suicide in 107 verbal youth with ASD with non-verbal IQ >55, assessed during inpatient psychiatric admission. Per parent report, 22% of youth with ASD had several day periods when they talked about death or suicide "often," or "very often." Clinical correlates included the presence of a comorbid mood (OR 2...
June 17, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28617938/fragile-x-syndrome-an-overview-and-update-of-the-fmr1-gene
#4
REVIEW
Montserrat Mila, Maria Isabel Alvarez-Mora, Irene Madrigal, Laia Rodriguez-Revenga
Fragile X syndrome (FXS) is the most common cause of inherited intellectual disability and the leading form of the monogenic cause of autism. FMR1 premutation is the first single-gene cause of primary ovarian failure (FXPOI) and one of the most common causes of ataxia (FXTAS), multiple additional phenotypes such as fibromyalgia, hypothyroidism, migraine headaches, sleep disturbances, sleep apnea, restless legs syndrome, central pain syndrome, neuropathy and neuropsychiatric alterations has been described. Clinical involvement in men and women carrying the FMR1 premutation currently constitutes a real health problem in the society that should be taken into account...
June 15, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28612245/correlates-of-police-involvement-among-adolescents-and-adults-with-autism-spectrum-disorder
#5
Ami Tint, Anna M Palucka, Elspeth Bradley, Jonathan A Weiss, Yona Lunsky
This study aimed to describe police interactions, satisfaction with police engagement, as well as examine correlates of police involvement among 284 adolescents and adults with autism spectrum disorder (ASD) followed over a 12- to 18-month period. Approximately 16% of individuals were reported to have some form of police involvement during the study period. Aggressive behaviors were the primary concern necessitating police involvement. Individuals with police involvement were more likely to be older, have a history of aggression, live outside the family home, and have parents with higher rates of caregiver strain and financial difficulty at baseline...
June 13, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28611219/inhibitory-engrams-in-perception-and-memory
#6
Helen C Barron, Tim P Vogels, Timothy E Behrens, Mani Ramaswami
Nervous systems use excitatory cell assemblies to encode and represent sensory percepts. Similarly, synaptically connected cell assemblies or "engrams" are thought to represent memories of past experience. Multiple lines of recent evidence indicate that brain systems create and use inhibitory replicas of excitatory representations for important cognitive functions. Such matched "inhibitory engrams" can form through homeostatic potentiation of inhibition onto postsynaptic cells that show increased levels of excitation...
June 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28609577/cerebrolysin-prevents-deficits-in-social-behavior-repetitive-conduct-and-synaptic-inhibition-in-a-rat-model-of-autism
#7
Roberto Cuevas-Olguin, Swagata Roychowdhury, Anwesha Banerjee, Francisco Garcia-Oscos, Eric Esquivel-Rendon, MarĂ­a Elena Bringas, Michael P Kilgard, Gonzalo Flores, Marco Atzori
Autism spectrum disorder (ASD) is a syndrome of diverse neuropsychiatric diseases of growing incidence characterized by repetitive conduct and impaired social behavior and communication for which effective pharmacological treatment is still unavailable. While the mechanisms and etiology of ASD are still unknown, a consensus is emerging about the synaptic nature of the syndrome, suggesting a possible avenue for pharmacological treatment with synaptogenic compounds. The peptidic mixture cerebrolysin (CBL) has been successfully used during the last three decades in the treatment of stroke and neurodegenerative disease...
June 13, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28596952/neurodevelopmental-delay-diagnosis-rates-are-increased-in-a-region-with-aerial-pesticide-application
#8
Steven D Hicks, Ming Wang, Katherine Fry, Vignesh Doraiswamy, Eric M Wohlford
A number of studies have implicated pesticides in childhood developmental delay (DD) and autism spectrum disorder (ASD). The influence of the route of pesticide exposure on neurodevelopmental delay is not well defined. To study this factor, we examined ASD/DD diagnoses rates in an area near our regional medical center that employs yearly aerial pyrethroid pesticide applications to combat mosquito-borne encephalitis. The aim of this study was to determine if areas with aerial pesticide exposure had higher rates of ASD/DD diagnoses...
2017: Frontiers in Pediatrics
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...
June 6, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28592562/functional-neuroimaging-of-high-risk-6-month-old-infants-predicts-a-diagnosis-of-autism-at-24-months-of-age
#10
Robert W Emerson, Chloe Adams, Tomoyuki Nishino, Heather Cody Hazlett, Jason J Wolff, Lonnie Zwaigenbaum, John N Constantino, Mark D Shen, Meghan R Swanson, Jed T Elison, Sridhar Kandala, Annette M Estes, Kelly N Botteron, Louis Collins, Stephen R Dager, Alan C Evans, Guido Gerig, Hongbin Gu, Robert C McKinstry, Sarah Paterson, Robert T Schultz, Martin Styner, Bradley L Schlaggar, John R Pruett, Joseph Piven
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by social deficits and repetitive behaviors that typically emerge by 24 months of age. To develop effective early interventions that can potentially ameliorate the defining deficits of ASD and improve long-term outcomes, early detection is essential. Using prospective neuroimaging of 59 6-month-old infants with a high familial risk for ASD, we show that functional connectivity magnetic resonance imaging correctly identified which individual children would receive a research clinical best-estimate diagnosis of ASD at 24 months of age...
June 7, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28578923/acoustic-startle-response-and-its-modulation-in-schizophrenia-and-autism-spectrum-disorder-in-asian-subjects
#11
REVIEW
Hidetoshi Takahashi, Yoko Kamio
The acoustic startle response (ASR) and its modulation, including prepulse inhibition (PPI), are considered to be promising neurophysiological indices for translational research in psychiatry. Impairment of the PPI has been reported in several psychiatric disorders, but particularly in schizophrenia, where PPI is considered to be a candidate endophenotype of the disorder. Although the profiles of the ASR differ between races, recent studies of single ethnicity samples in Asia were in accord with a number of studies from Western countries, in reporting that patients with schizophrenia exhibit impaired PPI...
June 1, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28546058/the-role-of-il-6-in-neurodevelopment-after-prenatal-stress
#12
Serena B Gumusoglu, Rebecca S Fine, Samuel J Murray, Jada L Bittle, Hanna E Stevens
Prenatal stress exposure is associated with adverse psychiatric outcomes, including autism and ADHD, as well as locomotor and social inhibition and anxiety-like behaviors in animal offspring. Similarly, maternal immune activation also contributes to psychiatric risk and aberrant offspring behavior. The mechanisms underlying these outcomes are not clear. Offspring microglia and the pro-inflammatory cytokine interleukin-6 (IL-6), known to influence microglia, may serve as common mechanisms between prenatal stress and prenatal immune activation...
May 22, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28545754/autism-and-convictions-for-violent-crimes-population-based-cohort-study-in-sweden
#13
Ragini Heeramun, Cecilia Magnusson, Clara Hellner Gumpert, Sven Granath, Michael Lundberg, Christina Dalman, Dheeraj Rai
OBJECTIVE: Recent systematic reviews have highlighted that the relationship between autism and violent offending is still unclear, but some cases have received extensive media scrutiny. We investigated whether autism is associated with convictions for violent crimes, and studied the associated risk and protective factors. METHOD: We analyzed data from the Stockholm Youth Cohort, a total population-based record-linkage cohort in Stockholm County comprising 295,734 individuals followed up between 15 and 27 years of age...
June 2017: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28541969/why-sex-education-matters-for-adolescents-with-autism-spectrum-disorder
#14
Anya Curtis
A proactive approach may prevent inappropriate behaviors, sexual victimization.
June 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28539993/effectiveness-of-non-pharmacological-interventions-on-stereotyped-and-repetitive-behaviors-of-pre-school-children-with-autism-a-systematic-review
#15
REVIEW
Hadi Zarafshan, Maryam Salmanian, Soudeh Aghamohammadi, Mohammad Reza Mohammadi, Seyed-Ali Mostafavi
INTRODUCTION: The present study aimed to review the literature on non-pharmacological interventions used to treat stereotyped and repetitive behaviors by a systematic method. METHODS: Two authors independently performed a search strategy on Medline/PubMed, Scopus and PsycINFO on English articles published up to April 23, 2014 with relevant search keywords. We also reviewed the bibliographies of retrieved articles and conference proceedings to obtain additional citations and references...
March 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/28531286/is-foetal-hyperexposure-to-androgens-a-cause-of-pcos
#16
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...
July 1, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28514706/evaluation-of-behavioral-change-after-adenotonsillectomy-for-obstructive-sleep-apnea-in-children-with-autism-spectrum-disorder
#17
Emi Murata, Ikuko Mohri, Kumi Kato-Nishimura, Jiro Iimura, Makoto Ogawa, Masaya Tachibana, Yuko Ohno, Masako Taniike
BACKGROUND AND OBJECTIVE: Obstructive sleep apnea (OSA) may affect daily cognitive functioning in children. The aims of our study were two-fold. The first aim was to detect, using the Child Behavior Checklist (CBCL), whether adenotonsillectomy (AT) for the treatment of OSA improved the behavior of children with autism spectrum disorder (ASD). The second aim was to identify characteristics for behavioral improvement following the treatment of OSA in these children with ASD. METHODS: The behaviors of ASD children aged 5-14 years diagnosed as having OSA (n=30) were evaluated using CBCL before and after AT...
June 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28495514/neurobehavioral-risks-of-ssris-in-pregnancy-comparing-human-and-animal-data
#18
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/28494598/dental-trauma-in-italian-children-and-adolescents-with-special-health-care-needs-a-cross-sectional-retrospective-study
#19
S Bagattoni, A Sadotti, G D'Alessandro, G Piana
AIM: Dental trauma is a frequent finding in people with special health care needs. The aim of this study was to determine the prevalence of dental trauma in a sample of Italian children and adolescents with special health care needs. MATERIALS AND METHODS: 556 medical and dental records of children and adolescents visited from January 2010 to March 2015 were examined. Information about medical diagnosis, gender, site and type of dental trauma (DT) were collected...
March 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28490020/maternal-inflammation-results-in-altered-tryptophan-metabolism-in-rabbit-placenta-and-fetal-brain
#20
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
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