Pubmed du 15/08/24

Pubmed du jour

1. Pathway to Independence – an interview with Marcella Birtele. Development;2024 (Aug 15);151(16)

Marcella Birtele completed her PhD in Malin Parmar’s lab at Lund University, Sweden, where her project involved characterising stem cell-derived dopaminergic neurons with the long-term goal of transplanting these neurons into patients with Parkinson’s disease. She is now a postdoc at the University of Southern California, USA, where she has been using cortical organoids to explore the role of autism spectrum disorder-associated genes in neural development. Marcella was selected as one of our 2024 PI fellows, a group of researchers who will be supported by Development’s Pathway to Independence Programme as they aim to secure independent positions. We spoke to Marcella to hear why she decided to apply to the programme, and how the research questions she hopes to address with her own lab will bridge her previous neurodegeneration and neural development studies.

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2. Al-Agailat L, Guertin S, Littlejohn E. Lipid apheresis in the management of severe hypertriglyceridaemia in an adolescent girl with global developmental delay. BMJ Case Rep;2024 (Aug 14);17(8)

Hypertriglyceridaemia-induced acute pancreatitis (HTG-AP) remains one of the common metabolic causes of acute pancreatitis in the paediatric population and the third most common cause after alcohol and gallstones in the adult population. We report a case of an early adolescent girl with global developmental delay and moderate cognitive impairment of unknown aetiology who presented with recurrent acute pancreatitis and uncompensated hypovolaemic shock. She was found to have serum triglyceride level of 7877 mg/dL (reference range<150 mg/dL) and hyperglycaemia with ketosis (no prior history of diabetes mellitus) that was successfully treated with lipid apheresis. This sometimes is an early modality for treatment in adults; however, it remains a last resort in children, used only for severe cases. A brief literature review on severe HTG-AP and its management is also provided.

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3. Bednarczuk N, Housby H, Lee IO, Consortium I, Skuse D, Wolstencroft J. Behavioural and neurodevelopmental characteristics of SYNGAP1. J Neurodev Disord;2024 (Aug 15);16(1):46.

BACKGROUND: SYNGAP1 variants are associated with varying degrees of intellectual disability (ID), developmental delay (DD), epilepsy, autism, and behavioural difficulties. These features may also be observed in other monogenic conditions. There is a need to systematically compare the characteristics of SYNGAP1 with other monogenic causes of ID and DD to identify features unique to the SYNAGP1 phenotype. We aimed to contrast the neurodevelopmental and behavioural phenotype of children with SYNGAP1-related ID (SYNGAP1-ID) to children with other monogenic conditions and a matched degree of ID. METHODS: Participants were identified from the IMAGINE-ID study, a UK-based, national cohort study of neuropsychiatric risk in children with ID of known genetic origin. Thirteen children with SYNGAP1 variants (age 4-16 years; 85% female) were matched (2:1) with 26 controls with other monogenic causes of ID for chronological and mental age, sex, socio-economic deprivation, adaptive behaviour, and physical health difficulties. Caregivers completed the Development and Wellbeing Assessment (DAWBA) and physical health questionnaires. RESULTS: Our results demonstrate that seizures affected children with SYNGAP1-ID (84.6%) more frequently than the ID-comparison group (7.6%; p =  < 0.001). Fine-motor development was disproportionally impaired in SYNGAP1-ID, with 92.3% of children experiencing difficulties compared to 50% of ID-comparisons(p = 0.03). Gross motor and social development did not differ between the two groups. Children with SYNGAP1-ID were more likely to be non-verbal (61.5%) than ID-comparisons (23.1%; p = 0.01). Those children able to speak, spoke their first words at the same age as the ID-comparison group (mean = 3.25 years), yet achieved lower language competency (p = 0.04). Children with SYNGAP1-ID compared to the ID-comparison group were not more likely to meet criteria for autism (SYNGAP1-ID = 46.2%; ID-comparison = 30.7%; p = .35), attention-deficit hyperactivity disorder (15.4%;15.4%; p = 1), generalised anxiety (7.7%;15.4%; p = .49) or oppositional defiant disorder (7.7%;0%; p = .15). CONCLUSION: For the first time, we demonstrate that SYNGAP1-ID is associated with fine motor and language difficulties beyond those experienced by children with other genetic causes of DD and ID. Targeted occupational and speech and language therapies should be incorporated early into SYNGAP1-ID management.

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4. Bottini SB, Morton HE, Buchanan KA, Gould K. Moving from Disorder to Difference: A Systematic Review of Recent Language Use in Autism Research. Autism Adulthood;2024 (Jun);6(2):128-140.

BACKGROUND: The neurodiversity paradigm positions autism as a neurological difference that is disabling in the societal context, shifting away from the traditional medical view of a disorder. Several recent publications recommend use of alternative neuro-affirming language (ANL) instead of traditional medical language (TML) with the aim to increase acceptance of autistic people and reduce prejudice. Examining language use within recent autism literature, including by journal and study characteristics, may offer insight into the influence of these recommendations and current disability discourse. METHODS: A systematic review was conducted using Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines in autism research from 2021 (n = 2322 articles; 394 journals). Articles were coded according to topic, participants, and use of self-report. Journals were coded by topic, geographic region, and language guidelines. Terminology use was extracted using QDA Miner software. RESULTS: Many articles primarily used TML with a smaller subset primarily using ANL. There was a positive correlation between ANL use and publication date. More ANL was associated with articles on topics of autistic traits, diversity, equity, and inclusion (DEI), or lifespan and that included autistic adults or autistic self-report. More ANL was also found in journals from Australasia or Europe or those that had identify-first language (IFL) guidelines. Less ANL (more TML) was associated with articles on biology/causes or treatment and that included autistic or non-autistic parents, autistic youth, siblings, or other clinical groups, and were published in medical journals. CONCLUSION: TML continues to largely dominate language choices in autism research, with an emerging shift toward ANL in recent literature. Increased ANL may be facilitated by journal and article language recommendations. Neuro-affirming language was also more likely in articles on topics prioritized by the autistic community, that included autistic adults, and may also be driven by cultural differences. Researchers and practitioners should consider the potential for their language use to impact individual and societal views of autistic people. Why is this topic important? Language use impacts how groups of people are viewed. Historically, autism was talked about as part of the medical model, which usually focuses on autism symptoms and deficits. The recent neurodiversity paradigm views autism as a difference that could be accepted and supported. Part of this acceptance is using words that describe autism as part of someone’s identity and emphasizing individualized strengths or needs. What is the purpose of this article? Several recent papers recommend using alternative neuro-affirming language (ANL) instead of traditional medical language (TML) in autism research. This article summarizes autism language use and examines how certain parts of journals and articles may impact phrasing. What did the authors do? We used guidelines for the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) to gather autism research studies published in 2021. We found 2322 articles from 594 journals. We first summarized how much ANL was in the articles relative to TML. Then, we compared this language use based on the articles’ topic and types of participants, and also the journals’ field, geographic region, and whether they included guidelines for language use. What were the results of the review? We found that articles primarily used TML, but more recent articles had more ANL. Articles that had more ANL were studies published more recently, were about traits or lifespan experiences (e.g., parenting, work, aging), included autistic adults as participants, from journals with language guidelines specific to disabled or autistic people, or from journals from Australasia or Europe. Articles that had more TML were those about treatments for or biological explanations of autism, included siblings as participants, or were published in medical journals. This means that certain aspects of articles and journals are related to how researchers write about autism. What do the authors recommend? Clinicians and researchers should ask autistic people their preferences surrounding language. Common language when referring to autism may differ based on the topic and participants that are being studied. More research is needed to understand how different terms impact prejudice toward and societal views of autistic people. We should also consider cultural differences in autism views, which influence researchers’ terminology use. Journals that wish to accelerate use of ANL should consider adopting explicit guidelines for language use. How will these findings help autistic people now or in the future? This article summarizes how researchers talk about autism, which likely impacts how autistic people are viewed by others. Increasing use of ANL may gradually impact conceptualizations of autism and prejudice regarding autistic people. eng

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5. Chair SY, Chow KM, Chan CW, Chan JY, Law BM, Waye MM. Structural Variations Identified in Patients with Autism Spectrum Disorder (ASD) in the Chinese Population: A Systematic Review of Case-Control Studies. Genes (Basel);2024 (Aug 15);15(8)

Autistic spectrum disorder (ASD) is a neurodevelopmental disability characterised by the impairment of social interaction and communication ability. The alarming increase in its prevalence in children urged researchers to obtain a better understanding of the causes of this disease. Genetic factors are considered to be crucial, as ASD has a tendency to run in families. In recent years, with technological advances, the importance of structural variations (SVs) in ASD began to emerge. Most of these studies, however, focus on the Caucasian population. As a populated ethnicity, ASD shall be a significant health issue in China. This systematic review aims to summarise current case-control studies of SVs associated with ASD in the Chinese population. A list of genes identified in the nine included studies is provided. It also reveals that similar research focusing on other genetic backgrounds is demanded to manifest the disease etiology in different ethnic groups, and assist the development of accurate ethnic-oriented genetic diagnosis.

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6. Chow BJ, Raharja A, Dahir R, Khaier A, Posner M. Understanding the diagnostic challenges of Miller Fisher syndrome in children: a case report from an ophthalmological perspective. Br J Hosp Med (Lond);2024 (Aug 30);85(8):1-5.

We report a case of a 6-year-old boy with autism spectrum disorder presenting with new-onset squint and ‘ptosis’ following a recent infection. Clinical examination revealed ataxia and areflexia alongside a dilated pupil poorly reactive to light. Subsequently, his eye movements deteriorated to near-complete ophthalmoplegia at 1-week review. Further investigations inclusive of a magnetic resonance imaging (MRI) brain scan, a computed tomography (CT) venogram and a lumbar puncture were conducted to consider and rule out differential diagnoses. Cerebrospinal fluid analysis revealed an albuminocytologic dissociation. The clinical triad of progressive ophthalmoplegia, areflexia and areflexia alongside albuminocytologic dissociation led to the diagnosis of Miller Fisher syndrome. The patient was commenced on intravenous immunoglobulin and his symptoms showed significant improvement. We use this interesting case to provide context for key learning points about diagnosing Miller Fisher syndrome in children.

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7. Fantozzi P, Billeci L, Muratori P, Maestro S, Muratori F, Chakrabarti B, Calderoni S. Autistic traits and perspective taking in youths with anorexia nervosa: an exploratory clinical and eye tracking study. J Eat Disord;2024 (Aug 14);12(1):116.

BACKGROUND: Despite their apparent dissimilarity, Anorexia Nervosa (AN) and Autism Spectrum Disorder (ASD) share many features, especially in terms of social and emotional difficulties. In recent years, empathic abilities in AN have been frequently assessed using self-report measures. Otherwise, the director task (DT) has been used to investigate the ability to take the visual perspective of another individual in a communicative context, using eye-tracking technology. The aim of the current study was to test the presence of autism-relevant features in AN, through: (i) comparing self-reported autistic traits and empathic abilities in a group of young inpatients with AN and age/gender matched healthy controls (HC); (ii) comparing performance on the director paradigm. METHODS: The participants were females in the age-range between 11 and 18 years: 24 with AN and 23 HC. Autistic traits, empathic abilities, and severity of the eating disorder were respectively measured using: the Autism Quotient (AQ), the Interpersonal Reactivity Index (IRI), and the Eating Disorder Inventory-3 (EDI-3). Both groups performed a computerized task in which a director instructed them to move objects placed on a set of shelves using a mouse, while their eye gaze was tracked. A total of 36 shelf configurations, divided into three categories (with dimensional distractor – with spatial distractor – control), were created. RESULTS: Subjects with AN showed higher autistic traits than HC. Eye-tracking data revealed that subjects with AN took longer to decide which object to select and where to move it, both in distractor-trials and in control-trials. In the AN group, we found a significant negative correlation between the total score of the AQ and the number of fixations to the irrelevant object in the dimensional control condition -in which the subjects were asked to focus on dimensional aspects of the object (large-small)-. CONCLUSIONS: Autistic traits were over-represented in a group of young inpatients with AN. Through the use of eye-tracking technology, this exploratory study documented some differences between AN inpatients and HC in their online processes during the perspective taking tasks, which could be considered a target of tailored intervention. A larger sample of patients is needed to confirm these preliminary findings.

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8. Gaier ED, Jaimes C, Gise RA, Armstrong-Javors AE, Kadzielski SM. Case 25-2024: A 12-Year-Old Boy with Autism and Decreased Vision. N Engl J Med;2024 (Aug 15);391(7):641-650.

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9. Gouda B, Sinha SN, Sangaraju R, Huynh T, Patangay S, Venkata Mullapudi S, Mungamuri SK, Patil PB, Periketi MC. Extraction, Phytochemical profile, and neuroprotective activity of Phyllanthus emblica fruit extract against sodium valproate-induced postnatal autism in BALB/c mice. Heliyon;2024 (Aug 15);10(15):e34992.

The aim of the present study was to evaluate the effect of the ethyl acetate fraction of amla (EAFA) extract on valproic acid (VPA)-induced postnatal autism in BALB/c mice. Our study revealed that mice treated with VPA on postnatal day 14 (PND14) showed significant abnormal behaviours such as social interaction, social affiliation, anxiety, and motor coordination compared to the control group, while EAFA extract treatment (100 mg/kg) ameliorated these symptoms. Our study highlights the protective effect of EAFA extract on improving behavioural alterations, significantly restoring anti-oxidative enzymes such as GST and GR, and reducing MDA and NO levels. Furthermore, the EAFA-treated group significantly lowered the proinflammatory markers (IL-1β and TNF-α) and the expression of up-regulated 5-HT1D, 5-HT2A, and D2 receptor proteins. Based on histopathological studies, the percentage of neuronal injury in the EAFA-treated group as well as cellular structural changes were reduced using SEM analysis. In conclusion, the present study suggests that treatment with EAFA extract ameliorates VPA-induced autism due to its anti-oxidant and neuroprotective activity.

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10. He HL, Lin XQ, Wang XL, Peng P, Xiao H, Yin F, Peng J. [Developmental and epileptic encephalopathy 33 caused by EEF1A2 gene mutation: a case report]. Zhongguo Dang Dai Er Ke Za Zhi;2024 (Aug 15);26(8):861-864.

A boy, aged 7 months, presented with severe global developmental delay (GDD), refractory epilepsy, hypotonia, nystagmus, ocular hypertelorism, a broad nasal bridge, everted upper lip, a high palatal arch, and cryptorchidism. Genetic testing revealed a de novo heterozygous missense mutation of c.364G>A(p.E122K) in the EEF1A2 gene, and finally the boy was diagnosed with autosomal dominant developmental and epileptic encephalopathy 33 caused by the EEF1A2 gene mutation. This case report suggests that for children with unexplained infancy-onset severe to profound GDD/intellectual disability and refractory epilepsy, genetic testing for EEF1A2 gene mutations should be considered. This is particularly important for those exhibiting hypotonia, nonverbal communication, and craniofacial deformities, to facilitate a confirmed diagnosis.

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11. Klein B, Ramaker M, Fitterling C, James C, Rouse M, Fauntleroy-Love KD, McNally Keehn R, Enneking B. Engagement and Satisfaction With Care Navigation Support Following Telehealth Autism Evaluation. J Dev Behav Pediatr;2024 (Jul-Aug 01);45(4):e309-e316.

OBJECTIVE: Care navigation support is designed to help connect families with health care resources. Given that children with autism have more unmet needs than their peers, such a service may be especially valuable to families who have recently received a diagnosis. This study sought to examine engagement in care navigation support after an autism telehealth evaluation. Specifically, we report on what demographic and diagnostic factors predicted engagement in care navigation support and satisfaction with this service. METHODS: Care navigation was offered to 220 families receiving autism telehealth evaluations between April 2020 and April 2022. Survey data from initial evaluation appointments and 2 follow-up care navigation meetings (approximately 1-3 months and approximately 9-12 months after evaluation), along with data from medical records, were collected and analyzed to determine whether any traits predicted engagement in care navigation. Satisfaction with care navigation was also analyzed. RESULTS: Of 220 families, 48.2% (n = 106) participated in a care navigation meeting within 1 to 3 months after an evaluation and 59.5% (n = 131) participated in at least 1 meeting across 2 time periods. The findings did not support the hypothesis that a diagnosis of autism would predict engagement. Analyses found that child sex (female compared with male) and child race and ethnicity (children of color compared with White children) predicted engagement. For those who engaged in care navigation, high satisfaction was reported. CONCLUSION: Participants’ engagement rates and satisfaction levels suggest care navigation is a valuable service for families after a telehealth autism evaluation.

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12. Kongo E, Gaҫe E, Gravina GM, Gribizi I, Rizaj X, Emir B. Cross-bite and oral habits among Albanian autistic children according to the stages of occlusal development. Sci Rep;2024 (Aug 14);14(1):18890.

This study had two aims. First, we aimed to investigate the prevalence of ACB, PCB, and oral habits among a group of Albanian children with ASD compared with a group of children without ASD. Second, we aimed to identify the associations of ASD with ACB, PCB, and oral habits. The sample inlcuded 125 children with ASD (91 males, 34 females) from 2 special schools for children with disabilities and 2 daily residential centers in Tirana. The control group included 125 children without ASD. The relationships between categorical variables were evaluated via the chi-square test. To identify the potential risk factors for ASD, we performed binary logistic regression. No statistically significant differences were found for CB or oral habits between the primary and adolescent dentition stages. A comparison of children with ASD with CB and oral habits revealed a significant difference in the prevalence of PCB. Binary logistic regression revealed that ACB, PCB and oral habits were not associated with ASD. CB was more prevalent among children with ASD in the primary and mixed dentition stages. Oral habits were more prevalent in the mixed and adolescent dentition stages. However, ASD is not a risk factor for CB or other oral habits.

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13. Lassen J, Oranje B, Vestergaard M, Foldager M, Kjær TW, Aggernæs B, Arnfred S. Reduced P300 amplitude in children and adolescents with autism is associated with slowed processing speed, executive difficulties, and social-communication problems. Autism;2024 (Aug 14):13623613241271950.

Selective attention to auditory input is reflected in the brain by an electric amplitude called the P3b amplitude, which is measured using electroencephalography. Previous research has shown that children and adolescents with autism have an attenuated P3b amplitude when they have to attend specific sounds while ignoring other sounds. However, it is unknown whether a reduced P3b amplitude in autistic children and adolescents is associated with their autism features, daily functioning and/or cognitive functions. This study aimed to examine these questions. Therefore, we assessed selective attention to auditory input in 57 children with autism aged 7-14 years and 57 neurotypically developing controls while measuring their brain activity with electroencephalography. Participants further underwent cognitive assessment, and parents reported on autistic traits and daily functioning. As expected, children with autism had lower P3b amplitude compared to their neurotypical peers. Importantly, an attenuated P3b amplitude was associated with more parent-reported social-communication problems and difficulties with daily functioning. Children with autism further had reduced processing speed of visual input, which also was coupled to a lower P3b amplitude. In conclusion, we found attenuated P3b amplitude in children with autism performing an auditory selective attention task, which was related to difficulties with processing visual input and allocating attentional resources critical for social and daily functioning. The results suggest that autistic children are more vulnerable to being disturbed when the environment is filled with conflicting sensory input.

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14. Li M, Izumoto M, Wang Y, Kato Y, Iwatani Y, Hirata I, Mizuno Y, Tachibana M, Mohri I, Kagitani-Shimono K. Altered white matter connectivity of ventral language networks in autism spectrum disorder: An automated fiber quantification analysis with multi-site datasets. Neuroimage;2024 (Aug 15);297:120731.

Comprehension and pragmatic deficits are prevalent in autism spectrum disorder (ASD) and are potentially linked to altered connectivity in the ventral language networks. However, previous magnetic resonance imaging studies have not sufficiently explored the microstructural abnormalities in the ventral fiber tracts underlying comprehension dysfunction in ASD. Additionally, the precise locations of white matter (WM) changes in the long tracts of patients with ASD remain poorly understood. In the current study, we applied the automated fiber-tract quantification (AFQ) method to investigate the fine-grained WM properties of the ventral language pathway and their relationships with comprehension and symptom manifestation in ASD. The analysis included diffusion/T1 weighted imaging data of 83 individuals with ASD and 83 age-matched typically developing (TD) controls. Case-control comparisons were performed on the diffusion metrics of the ventral tracts at both the global and point-wise levels. We also explored correlations between diffusion metrics, comprehension performance, and ASD traits, and conducted subgroup analyses based on age range to examine developmental moderating effects. Individuals with ASD exhibited remarkable hypoconnectivity in the ventral tracts, particularly in the temporal portions of the left inferior longitudinal fasciculus (ILF) and the inferior fronto-occipital fasciculus (IFOF). These WM abnormalities were associated with poor comprehension and more severe ASD symptoms. Furthermore, WM alterations in the ventral tract and their correlation with comprehension dysfunction were more prominent in younger children with ASD than in adolescents. These findings indicate that WM disruptions in the temporal portions of the left ILF/IFOF are most notable in ASD, potentially constituting the core neurological underpinnings of comprehension and communication deficits in autism. Moreover, impaired WM connectivity and comprehension ability in patients with ASD appear to improve with age.

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15. Pereira AC, Leonard A, Velthuis H, Wong NML, Ponteduro FM, Dimitrov M, Ellis CL, Kowalewski L, Lythgoe DJ, Rotaru DG, Edden RAE, Ivin G, Pretzsch CM, Daly E, Murphy DGM, McAlonan GM. Frontal and occipital brain glutathione levels are unchanged in autistic adults. PLoS One;2024;19(8):e0308792.

BACKGROUND: The neurobiological underpinnings of Autism Spectrum Disorder (ASD) are diverse and likely multifactorial. One possible mechanism is increased oxidative stress leading to altered neurodevelopment and brain function. However, this hypothesis has mostly been tested in post-mortem studies. So far, available in vivo studies in autistic individuals have reported no differences in glutathione (GSH) levels in frontal, occipital, and subcortical regions. However, these studies were limited by the technically challenging quantification of GSH, the main brain antioxidant molecule. This study aimed to overcome previous studies’ limitations by using a GSH-tailored spectroscopy sequence and optimised quantification methodology to provide clarity on GSH levels in autistic adults. METHODS: We used spectral editing proton-magnetic resonance spectroscopy (1H-MRS) combined with linear combination model fitting to quantify GSH in the dorsomedial prefrontal cortex (DMPFC) and medial occipital cortex (mOCC) of autistic and non-autistic adults (male and female). We compared GSH levels between groups. We also examined correlations between GSH and current autism symptoms, measured using the Autism Quotient (AQ). RESULTS: Data were available from 31 adult autistic participants (24 males, 7 females) and 40 non-autistic participants (21 males, 16 females); the largest sample to date. The GSH levels did not differ between groups in either region. No correlations with AQ were observed. CONCLUSION: GSH levels as measured using 1H-MRS are unaltered in the DMPFC and mOCC regions of autistic adults, suggesting that oxidative stress in these cortical regions is not a marked neurobiological signature of ASD.

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16. Reed ZE, Thomas R, Boyd A, Griffith GJ, Morris TT, Rai D, Manley D, Davey Smith G, Davis OSP. Mapping associations of polygenic scores with autistic and ADHD traits in a single city region. J Child Psychol Psychiatry;2024 (Aug 14)

BACKGROUND: The genetic and environmental aetiology of autistic and Attention Deficit Hyperactivity Disorder (ADHD) traits is known to vary spatially, but does this translate into variation in the association of specific common genetic variants? METHODS: We mapped associations between polygenic scores for autism and ADHD and their respective traits in the Avon Longitudinal Study of Parents and Children (N = 4,255-6,165) across the area surrounding Bristol, UK, and compared them to maps of environments associated with the prevalence of autism and ADHD. RESULTS: Our results suggest genetic associations vary spatially, with consistent patterns for autistic traits across polygenic scores constructed at different p-value thresholds. Patterns for ADHD traits were more variable across thresholds. We found that the spatial distributions often correlated with known environmental influences. CONCLUSIONS: These findings shed light on the factors that contribute to the complex interplay between the environment and genetic influences in autistic and ADHD traits.

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17. Roux AM, Voltaire S, Steinberg H, Williams ED, Anderson KA, Hutson TM, Shea LL. More Than Just a Variable: The Need to Explicitly Focus on Black Youth Within Autism Transitions Research. Autism Adulthood;2024 (Jun);6(2):119-127.

Little evidence is available to provide context for understanding the experiences of parents and youth from historically marginalized groups as they age into adulthood, especially in regard to the transition experiences of Black autistic transition-age youth and their family members. This commentary builds upon recent publications that inform intersectional understandings of Black autistic experiences in America, and outlines research recommendations to better address the specific needs of Black autistic transition-age youth. Given the noted deficits in transition research and the transition process in regard to the experiences of Black autistic youth, we provide recommendations for improving autism transition research. We propose changes that are necessary to achieve equitable research processes, which could inform the design of targeted interventions to improve transition experiences for Black autistic youth. Why is this topic important? There is little research on the experiences of Black autistic youth and young adults during the transition to adulthood. It is important to study this group of people, because they may have more unmet needs for services and supports during the transition years. They may have a harder time achieving employment or continuing their education because of the long-term effects of racism in communities. What is the purpose of this article? To add to what is known on this topic, we report on recent studies about Black autistic youth during the transition to adulthood. We provide research and practice recommendations. What personal or professional perspectives do the authors bring to this topic? The authors of this study are allistic researchers and research assistants who are members of a research team working on, or advising, autism transition research. A.M.R. is a White researcher, and a family member of autistic individuals, who studies the transition experiences of autistic youth. S.V. is a Black, nonbinary, public health social worker with experience in Black LGBTQIA+ mental health. E.-D.W. is a Black researcher who studies the mental health of Black autistic youth. H.S. is a White qualitative sociologist with experience studying the transition to young adulthood from the critical disability lens. K.A.A. is a mixed-race researcher who is White-presenting and who studies the intersectionality of autism, race, and poverty. T.M.H. is a Black researcher whose work focuses on intersecting identities, with a special focus on race and autism, and the way those intersections impact the lived experiences of individuals. L.L.S. is a White researcher with experience in studying health services disparities. The positionality of this team is that we identify as nonautistic researchers who seek to support increased focus on Black autistic youth and adults within autism research. What is already known about this topic? We know that there has been little attention given to studying how Black autistic youth and their families experience the transition to adulthood. We also know they are less likely to receive information about the transition in a timely manner. These disparities are unacceptable. What do the authors recommend? We need to find better ways to learn about the barriers that Black autistic youth face as they become adults. We also need to learn about the strengths they use to overcome these barriers. That information will help us to design ways to improve transitions. This work should be done with Black autistic youth and their families as partners. Researchers should use different approaches to invite Black youth into their studies. When researchers are designing studies they should think about the connections between people’s identities such as being autistic, Black, or poor, because these identities combine to make discrimination worse. It would be helpful if the leaders of academic departments placed value on hiring Black and autistic scholars and encouraged more diversity within research. How will these recommendations help autistic adults now or in the future? It is possible to make changes in how Black autistic transition-age youth move through transition. However, the same solutions will not work for all communities. This is because different communities experience different barriers to receiving information and services during the transition years. We hope these recommendations will help researchers to think about how they can improve the participation of Black autistic youth and their family members. eng

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18. Schwartz AE, McDonald K. Research ethics for all: Development of a social-behavioral research ethics education program for community research partners with developmental disabilities. Disabil Health J;2024 (Jul 31):101675.

BACKGROUND: People with developmental disabilities make important contributions to research. However, inaccessible research ethics trainings present a barrier to them taking on some research roles. OBJECTIVES: We developed a social-behavioral research ethics training that leads to certification tailored to the accessibility needs and roles of community research partners with developmental disabilities. METHODS: We collaborated with diverse partners (people with developmental disabilities, a disability service provider, health researchers, human research participant protections experts) to develop the research ethics training. To identify potential training content, we conducted a rapid scoping review of ethical, legal, and social issues in social-behavioral research with adults with developmental disabilities and reviewed national research ethics curricula. Through discussions and a modified Delphi process, we worked with partners to identify content to teach; partners also provided guidance on accessibility. RESULTS: The training and rapid scoping reviews and input from partners resulted in 93 potential educational content elements to include. After completing the modified Delphi process, partners recommended inclusion of 83 of these content elements in the educational training and provided input on depth and approach to teaching this content. Research Ethics for All is a freely available training that includes 5 units, delivered via didactic and active learning, and assessment activities to verify understanding. Research Ethics for All should be facilitated by an experienced researcher. CONCLUSIONS: Research Ethics for All includes foundational social-behavioral research ethics content designed to support community research partners with developmental disabilities to take on new research responsibilities.

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19. Shea L, Sadowsky M, Tao S, Rast J, Schendel D, Chesnokova A, Headen I. Perinatal and Postpartum Health Among People With Intellectual and Developmental Disabilities. JAMA Netw Open;2024 (Aug 1);7(8):e2428067.

IMPORTANCE: Small, geographically limited studies report that people with intellectual and developmental disabilities (IDD) have increased risk for serious pregnancy-related and birth-related challenges, including preeclampsia, preterm birth, and increased anxiety and depression, than their peers. United States-based population-level data among people with IDD are lacking. OBJECTIVES: To identify perinatal and postpartum outcomes among a national, longitudinal sample of people with IDD enrolled in public health insurance, compare subgroups of people with IDD, and compare outcomes among people with IDD with those of peers without IDD. DESIGN, SETTING, AND PARTICIPANTS: This retrospective cohort study used national Medicaid claims from January 1, 2008, to December 31, 2019, for 55 440 birthing people with IDD and a random sample of 438 557 birthing people without IDD. Medicaid funds almost half of all births and is the largest behavioral health insurer in the US, covering a robust array of services for people with IDD. Statistical analysis was performed from July 2023 to June 2024. EXPOSURE: People who had a documented birth in Medicaid during the study years. MAIN OUTCOME AND MEASURES: Perinatal outcomes were compared across groups using univariate and multivariate logistic regression. The probability of postpartum anxiety and depression was estimated using Kaplan-Meier and Cox proportional hazards regression. RESULTS: The study sample included 55 440 birthing people with IDD (including 41 854 with intellectual disabilities [ID] and 13 586 with autism; mean [SD] age at first delivery, 24.9 [6.7] years) and a random sample of 438 557 birthing people without IDD (mean [SD] age at first delivery, 26.4 [6.3] years). People with IDD were younger at first observed delivery, had a lower prevalence of live births (66.6% vs 76.7%), and higher rates of obstetric conditions (gestational diabetes, 10.3% vs 9.9%; gestational hypertension, 8.7% vs 6.1%; preeclampsia, 6.1% vs 4.4%) and co-occurring physical conditions (heart failure, 1.4% vs 0.4%; hyperlipidemia, 5.3% vs 1.7%; ischemic heart disease, 1.5% vs 0.4%; obesity, 16.3% vs 7.4%) and mental health conditions (anxiety disorders, 27.9% vs 6.5%; depressive disorders, 32.1% vs 7.5%; posttraumatic stress disorder, 9.5% vs 1.2%) than people without IDD. The probability of postpartum anxiety (adjusted hazard ratio [AHR], 3.2 [95% CI, 2.9-3.4]) and postpartum depression (AHR, 2.4 [95% CI, 2.3-2.6]) was significantly higher among autistic people compared with people with ID only and people without IDD. CONCLUSIONS AND RELEVANCE: In this retrospective cohort study, people with IDD had a younger mean age at first delivery, had lower prevalence of live births, and had poor obstetric, mental health, and medical outcomes compared with people without IDD, pointing toward a need for clinician training and timely delivery of maternal health care. Results highlight needed reproductive health education, increasing clinician knowledge, and expanding Medicaid to ensure access to care for people with IDD.

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20. Singh Y, Sodhi RK, Kumar H, Bishnoi M, Bhandari R, Kuhad A. Repurposing of niclosamide, an anthelmintic, by targeting ERK/MAPK signaling pathway in the experimental paradigm of autism spectrum disorders. Eur J Pharmacol;2024 (Aug 15);982:176902.

AIM: The current study explores niclosamide’s neuroprotective potential in an animal model of autism spectrum disorder (ASD) and goes further to understand how the ERK/MAPK signaling pathway is thought to contribute to this activity. METHODS: In order to create an autism-like phenotype in rats, 4 μl of 1 M PPA was infused intracerebroventricularly. The oral treatment with niclosamide (50 and 100 mg/kg) and risperidone (1 mg/kg) (used as standard) was given from 3rd to 30th day. Between the 14th and 28th day, behavioral assessments were made for sociability, stereotypy, anxiety, depression, novelty preference, repetitive behavior, and perseverative behavior. The animals were euthanized on the 29th day, and oxidative stress markers were assessed in the brain homogenate. The levels of neuroinflammatory cytokines such as TNF-α, IL-6, NF-κB, IFN-γ and glutamate were estimated using ELISA kits. To assess the involvement of the ERK/MAPK signaling pathway, levels of Nrf2 and ERK2 were also measured. KEY FINDINGS: Niclosamide therapy significantly restored behavioral, biochemical, neurological, and molecular impairments. Hence, niclosamide could be a potential neurotherapeutic candidate for further studies for use in ASD.

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21. Valderrama A, Nikièma B, Forgeot d’Arc B, Guerrero L, Giroux M. Revealing the Most Vulnerable Groups: Courtesy Stigma in Caregivers of Autistic Persons in Quebec. Front Psychol;2024;15:1320816.

INTRODUCTION: Caregivers of autistic persons often face « courtesy stigma, » a phenomenon by which caregivers experience stigma because of their association with a person whose disability may be stigmatized. Understanding the repercussions of this stigma is crucial not only for caregivers’ mental health but also for the quality of care provided to their dependent. This study aimed to explore courtesy stigma among caregivers of autistic persons in Quebec, examining its prevalence and impact in order to identify groups that are particularly susceptible to negative outcomes. METHODS: This study used a cross-sectional online survey methodology employing quota sampling to collect responses from 194 participants. Data were collected using a computer-assisted web interview (CAWI) platform. The impact of courtesy stigma was measured in terms of care burden, mental health, and overall well-being of caregivers. RESULTS: The findings revealed that caregivers frequently experience rejection, isolation, and work-related challenges. Notably, caregivers’ health was below average with the lowest reported health outcomes in Quebec. The caregivers who are the most vulnerable to negative outcomes included female caregivers, those aged 45 or older, financially strained households, caregivers of children requiring elevated levels of support, caregivers who isolated due to their autistic dependents, and those who experienced stigmatization directed at themselves or their children in the form of rejection.Interestingly, 60% of respondents reported that the caregiving burden was « not at all » to « somewhat » difficult, raising questions about factors that may mitigate caregiving challenges over time. CONCLUSION: Negative outcomes from courtesy stigma vary depending on certain risk factors and individual characteristic. This study underscores the need for targeted public policies and interventions, particularly for those at a higher risk of experiencing the negative effects of courtesy stigma on the burden of care, overall health, and mental health. By tailoring resources and support for these priority groups, we can better address the challenges faced by families of autistic persons.

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22. Westby C, Roman R. Developing Knowledge of Autism in Majority World Countries: Examples of Bolivia and Paraguay. Neuropsychiatr Dis Treat;2024;20:1583-1595.

Bolivia and Paraguay are Majority World countries, which are defined as areas within which most of the world’s population live, natural resources and landmass are located, but are often economically poor. Minority world countries, such as, the United States, have a smaller percentage of the world’s population, but often a greater share of the world’s wealth. Many Majority World countries, such as Bolivia and Paraguay, have not collected prevalence data on autism and assessments and interventions for persons are quite limited, if they are available at all. Persons with autism in Bolivia and Paraguay are at most underserved and the majority are unserved. This article reviews topological, demographic, and economic/political factors affecting the identification and provisions of services for autistic children and the current health and educational status for autistic persons in Bolivia and Paraguay. Descriptions of the efforts of outside consultants to assist parents and professional within those countries to gain information and develop assessment and intervention programs for autistic children are described. Attention is given to methodologies employed by United States consultants to ensure the implementation of culturally responsive practices. Consultants employed skilled dialogue when interviewing parents and professionals in Bolivia and Paraguay to understand their perspectives so as to guide content of trainings. The PRECEDE-PROCEED framework was employed to develop a culturally-responsive approach to assessment and intervention.

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23. Zhao M, Hou M, Herold F, Chen Y, Werneck AO, Block ME, Kramer AF, Taylor A, Cunha PM, Chaput JP, Falck RS, Owen N, Zou L. Associations of meeting 24-hour movement behavior guidelines with social and emotional function in youth with ASD/ADHD. J Affect Disord;2024 (Aug 15);359:189-195.

BACKGROUND: The 24-hour movement behavior (24-HMB) guidelines recommend that children and adolescents (youth) should limit screen time (ST), get an adequate amount of sleep (SL), and engage in sufficient physical activity (PA) to ensure health and healthy development. Meeting 24-HMB guidelines is associated with positive mental health outcomes (e.g., social and emotional function) in the general population. However, it is unclear whether such findings extend to youth with Autism Spectrum Disorder (ASD) and Attention-Deficit/Hyperactivity Disorder (ADHD). Thus, we examined associations of meeting 24-HMB guidelines with social and emotional function in youth with comorbid ASD/ADHD. METHODS: Data from the 2020-2021 National Survey of Children’s Health – a U.S. national, population-based, cross-sectional study – were used. We extracted and analyzed data on youth (aged between 6 and 17 years) diagnosed with comorbidity of ASD/ADHD. Data on movement behaviors (PA, ST, and SL) and specific outcome variables (social function and emotional function) were collected through caregiver-proxy reports. Logistic regressions were performed to examine the associations between meeting 24-HMB guidelines and social and emotional outcomes adjusting for covariates (e.g., age, sex, ethnicity, weight status, birth status, socio-economic status, and receiving medication/behavioral treatment). RESULTS: Among 979 children and adolescents with comorbid ASD/ADHD, only 3.8 % met all three 24-HMB guidelines. In total, 45.0 % of participants met at least one guideline, and 25.5 % of those met at least two guidelines. Compared to those who did not meet any 24-HMB guidelines, meeting SL + ST guidelines was significantly associated with lower odds of poorer social function (being bullied: OR = 0.3, 95%CI [0.1-0.7]; arguing: OR = 0.2, 95%CI[0.1-0.4]). Furthermore, meeting PA + ST + SL guidelines was associated with lower odds of poorer emotional function (depression: OR = 0.5, 95%CI[0.3-0.7]). CONCLUSION: Meeting 24-HMB guidelines was associated with better social and emotional function in U.S. youth with comorbid ASD/ADHD; however, currently very few with comorbid ASD/ADHD meet all 24-HMB guidelines. These results emphasize the importance of promoting adherence to the 24-HMB guidelines among youth facing the challenges of comorbid ASD/ADHD. These cross-sectional findings point to the need for further empirical evidence from longitudinal studies to support our conclusions.

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