Pubmed du 24/08/24

Pubmed du jour

1. Dimitriou D, Khan YS, Khan AW, Esposito G. Editorial: Advancing understanding and care for individuals with developmental disabilities in the Middle East. Res Dev Disabil;2024 (Aug 22);153:104816.

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2. Jin X, Sheng W, Liu X, Zhu D. Optimizing Colonoscopy Preparation in Autistic Children: A Comparative Study of Hypertonic Sugar Saline and Normal Saline Enemas. Clin Pediatr (Phila);2024 (Aug 24):99228241275054.

OBJECTIVE: This study evaluates the effectiveness of combining oral polyethylene glycol electrolyte solution with hypertonic sugar saline enema for colonoscopy preparation in autistic children. METHODS: Clinical data of 58 children with autism who underwent fecal bacteria transplantation and transendoscopic enteral tubing (TET) catheterization at the hospital were retrospectively analyzed. Participants were allocated into 2 groups: a control group (26 children) and an observation group (32 children), differentiated by their intestinal preparation protocols. The control group was administered oral polyethylene glycol combined with normal saline enema, whereas the observation group was given oral polyethylene glycol combined with hypertonic sugar saline enema. The Boston Bowel Preparation Scale (BBPS) was used to score intestinal cleanliness. Differences in intestinal cleanliness and colonoscopy duration between the 2 groups were compared. RESULTS: The group treated with hypertonic sugar saline enema exhibited significantly higher BBPS scores (6.78 ± 0.83) and an intestinal passage rate of 96.86%, which were statistically significant compared with the control group (P < 0.05). In addition, the colonoscopy duration was notably shorter in the observation group (14.03 ± 4.86 minutes) compared with the control group (P < 0.05). CONCLUSION: Our findings suggest that an oral polyethylene glycol electrolyte solution combined with a hypertonic sugar saline enema is a more effective preparation method for colonoscopy in autistic children.

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3. Ma Y, Mu X, Zhang T, Zhao Y. MAFT-SO: A novel multi-atlas fusion template based on spatial overlap for ASD diagnosis. J Biomed Inform;2024 (Aug 24);157:104714.

Autism spectrum disorder (ASD) is a common neurological condition. Early diagnosis and treatment are essential for enhancing the life quality of individuals with ASD. However, most existing studies either focus solely on the brain networks of subjects within a single atlas or merely employ simple matrix concatenation to represent the fusion of multi-atlas. These approaches neglected the natural spatial overlap that exists between brain regions across multi-atlas and did not fully capture the comprehensive information of brain regions under different atlases. To tackle this weakness, in this paper, we propose a novel multi-atlas fusion template based on spatial overlap degree of brain regions, which aims to obtain a comprehensive representation of brain networks. Specifically, we formally define a measurement of the spatial overlap among brain regions across different atlases, named spatial overlap degree. Then, we fuse the multi-atlas to obtain brain networks of each subject based on spatial overlap. Finally, the GCN is used to perform the final classification. The experimental results on Autism Brain Imaging Data Exchange (ABIDE) demonstrate that our proposed method achieved an accuracy of 0.757. Overall, our method outperforms SOTA methods in ASD/TC classification.

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4. Michalczyk J, Miłosz A, Gesek M, Fornal A. Prenatal Diabetes and Obesity: Implications for Autism Spectrum Disorders in Offspring – A Comprehensive Review. Med Sci Monit;2024 (Aug 24);30:e945087.

Fetal brain development is an important determinant of neuropsychological performance in children. Any alterations in the intrauterine environment at different stages of pregnancy, such as maternal metabolic disorders, can lead to the development of chronic conditions in the offspring. Therefore, maternal diabetes, especially gestational diabetes mellitus, is an important factor in the development of pathological changes, such as miscarriage, fetal macrosomia, or neurodevelopmental disorders. During pregnancy, the hyperglycemic intrauterine environment adversely affects fetal brain development. A growing body of scientific research indicates that prenatal environmental factors, by affecting fetal brain development, can contribute to the appearance of autism spectrum disorders. According to the latest estimates from the International Diabetes Federation (2021), approximately 21.1 million live births worldwide (16.7%) have been affected by some form of hyperglycemia during pregnancy. The condition is more prevalent in low- and middle-income countries, where access to obstetric care is limited. The following factors have been identified as potential risk factors for gestational diabetes: advanced maternal age, overweight and obesity, family history of diabetes, and any form of diabetes. The purpose of this review is to summarize recent studies evaluating the effect of prenatal and maternal risk factors such as maternal pre-pregnancy diabetes, gestational diabetes, and obesity on the risk of developing autism spectrum disorder in offspring.

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5. Nijhof D, Melville C, Rydzewska E, Pavlopoulou G, Meehan L, Gardani M. Experiences of and treatment preferences for insomnia in autistic adults: An Interpretative Phenomenological Analysis. Sleep Med;2024 (Aug 14);122:163-170.

Insomnia and insomnia symptoms are frequent experiences of autistic people resulting in pronounced daytime effects and poor quality of life. This study employed an Interpretive Phenomenological Analysis approach to explore lived experiences of autistic adults with insomnia, perspectives on current available interventions and future treatment preferences. Twelve participants (aged 21-48 years old) were interviewed following screening for insomnia, using the Sleep Condition Indicator (scores ranged from 1 to 12; cut off >16). Each interview was analysed individually developing Personal Experiential Themes for each case, which were then mapped across cases based on identified patterns and connections. Results yielded rich personal accounts and identified two Group Experiential Themes: « The Night is Friendlier » and « It Doesn’t Really Work for Me ». Participants described experiences with sleeplessness throughout their adult lives and often since childhood. They discussed how the night time offers them a more relaxed and safe space to freely behave as they wish. Advice and interventions were viewed by participants via the prism of underlying social issues, such as autism acceptance and trust, and how these structures can affect participants’ experiences with insomnia, help seeking and effectiveness of current interventions. Our results highlight the need for inclusion of autistic people in insomnia research through co-production and co-creation as well as clinical practice and delivery. This is the first study to integrate perspectives and experiences of autistic people towards insomnia and sleep-related advice by health care professionals. Findings are discussed in relation to theoretical and practical implications, as well as directions for future research.

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6. Pagnotta KD, Schianom NR, Bernabe K, Jean-Claude J, Toole N, Martin R, Barrett A, Lawlor K, Dumont R, Schaaf R. Addressing Sensory Challenges in Athletes with Autism Spectrum Disorder: A Clinical Commentary. J Athl Train;2024 (Aug 24)

Athletes with autism spectrum disorder (ASD) experience lesser care for injuries and athletic trainers (ATs) report feeling unprepared to provide care competently for this population. Provision of sports-related care can be impacted by sensory differences associated with ASD such as hyper-reactivity to sensation or poor integration of sensory information. An in-depth review of the literature using the Strength of Recommendation Taxonomy (SORT) guidelines was used to identify articles that address the sensory features of autism for athletic trainers with the purpose of informing athletic trainers about the sensory features of ASD and to present the most current evidence-based recommendations for providing care to athletes with ASD and other neurodivergent individuals who present with sensory differences. Relevant articles were reviewed by four independent researchers and organized by theme. Key themes included use of sensory friendly or adapted environments, sensory kits, and informed communication strategies that acknowledge sensory differences. Providing individualized care for athletes with ASD and sensory features can improve the quality of and participation in sports for autistic persons.

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7. Sandhu A, Rawat K, Gautam V, Kumar A, Sharma A, Bhatia A, Grover S, Saini L, Saha L. Neuroprotective effect of PPAR gamma agonist in rat model of autism spectrum disorder: Role of Wnt/β-catenin pathway. Prog Neuropsychopharmacol Biol Psychiatry;2024 (Aug 22);135:111126.

BACKGROUND: The clinical manifestation of autism spectrum disorder (ASD) is linked to the disruption of fundamental neurodevelopmental pathways. Emerging evidences claim to have an upregulation of canonical Wnt/β-catenin pathway while downregulation of PPARγ pathway in ASD. This study aims to investigate the therapeutic potential of pioglitazone, a PPARγ agonist, in rat model of ASD. The study further explores the possible role of PPARγ and Wnt/β-catenin pathway and their interaction in ASD by using their modulators. MATERIAL AND METHODS: Pregnant female Wistar rats received 600 mg/kg of valproic acid (VPA) to induce autistic symptoms in pups. Pioglitazone (10 mg/kg) was used to evaluate neurobehaviors, relative mRNA expression of inflammatory (IL-1β, IL-6, IL-10, TNF-α), apoptotic markers (Bcl-2, Bax, & Caspase-3) and histopathology (H&E, Nissl stain, Immunohistochemistry). Effect of pioglitazone was evaluated on Wnt pathway and 4 μg/kg dose of 6-BIO (Wnt modulator) was used to study the PPARγ pathway. RESULTS: ASD model was established in pups as indicated by core autistic symptoms, increased neuroinflammation, apoptosis and histopathological neurodegeneration in cerebellum, hippocampus and amygdala. Pioglitazone significantly attenuated these alterations in VPA-exposed rats. The expression study results indicated an increase in key transcription factor, β-catenin in VPA-rats suggesting an upregulation of canonical Wnt pathway in them. Pioglitazone significantly downregulated the Wnt signaling by suppressing the expression of Wnt signaling-associated proteins. The inhibiting effect of Wnt pathway on PPARγ activity was indicated by downregulation of PPARγ-associated protein in VPA-exposed rats and those administered with 6-BIO. CONCLUSION: In the present study, upregulation of canonical Wnt/β-catenin pathway was demonstrated in ASD rat model. Pioglitazone administration significantly ameliorated these symptoms potentially through its neuroprotective effect and its ability to downregulate the Wnt/β-catenin pathway. The antagonism between the PPARγ and Wnt pathway offers a promising therapeutic approach for addressing ASD.

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8. Shaw E, Pennington L, Andrew M, Taylor H, Cadwgan J, Sellers D, Morris C, Garland D, Parr J. Informing creation of the FEEDS Toolkit to support parent-delivered interventions for eating, drinking and swallowing difficulties in young children with neurodisability: intervention use by neurodevelopmental diagnosis and healthcare professional role. BMJ Paediatr Open;2024 (Aug 24);8(1)

BACKGROUND: The FEEDS (Focus on Early Eating, Drinking and Swallowing) study focused on interventions used to improve feeding for children with neurodisability and eating, drinking and swallowing difficulties (EDSD), and the outcomes viewed as important by healthcare professionals (HPs) and parent carers. The FEEDS Toolkit was created subsequently as an intervention decision aid to be used collaboratively by parent carers and HPs. This study aimed to inform on current intervention practices and influence toolkit design by ascertaining whether specific intervention use varied by a child’s main diagnosis and by specific HP role. METHODS: FEEDS survey data were grouped by child’s main diagnosis and HP role. Main diagnoses included autism spectrum disorder (ASD) n=183; Down syndrome (DS) n=69; cerebral palsy (CP) n=30). HPs included were speech and language therapists (SLT) n=131; occupational therapists (OT) n=63; physiotherapists (PT) n=57; paediatricians n=50; dieticians n=40; nurses n=32 and health visitors n=14. RESULTS: Most interventions were used commonly across diagnoses. However, some interventions were used more commonly with specific conditions, for example, positioning (CP 85%, DS 70%, ASD 23%, strategies/programmes aimed at changing behaviour at mealtimes (ASD 52%, CP 8%, DS 11%); visual supports (ASD 58%, CP 0%, DS 21%). HPs reported using a broad range of interventions, SLTs (mean=13.9), dieticians (12.3), OTs (12.7) and paediatricians (11.1). There was overlap between intervention use and HP role, for example, positioning (100% PT, 97% SLT, 94% OT, 73% paediatricians and 69% nurses). CONCLUSIONS: Interdisciplinary working is common when managing EDSD, with all HP types using multiple interventions. A child’s main diagnosis does not substantially influence intervention use, and the individual context of each child requires consideration in intervention selection. Study findings have supported development of the FEEDS Toolkit for use in feeding services.

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9. Wang X, Li Y, Li R, Yuan L, Hua Y, Cai Y, Liu X. Low-frequency RTMS attenuates social impairment in the VPA-induced mouse model. Behav Brain Res;2024 (Aug 24);472:115156.

BACKGROUND: Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by impaired social interactions and repetitive behaviors. Despite its prevalence, effective treatments remain elusive. Recent studies have highlighted the importance of the balance between GABAergic and glutamatergic neuronal synaptic functions in ASD development. Repetitive transcranial magnetic stimulation (RTMS) is a painless and effective treatment allowed for use in depression and obsessive-compulsive disorder. However, its efficacy in treating autism is still under investigation. Low-frequency RTMS (LF-RTMS), which shows promise in reducing autism-like behaviors, is considered to regulate synaptic function. OBJECTIVE: We observed and recorded the behaviors of mice to assess the impact of RTMS on their social interactions and repetitive activities. Subsequently, we examined GABAergic and glutamatergic neuronal markers along with synaptic marker proteins to understand the underlying changes associated with these behaviors. METHODS: To evaluate behaviors associated with autism spectrum disorder (ASD), several behavioral tests were conducted, focusing on sociability, repetitive behaviors, locomotion, anxiety, and depression. Additionally, Western blot and immunofluorescence staining were employed to investigate the activity of GABAergic and glutamatergic neurons in the hippocampus, aiming to understand the synaptic mechanisms underlying these behaviors. RESULTS: LF-RTMS treatment effectively relieved the social disability and normalized synaptic function in the hippocampus of ASD mice model induced by valproate (VPA). Importantly, this treatment did not lead to any adverse effects on repetitive behavior, locomotion, anxiety, or depression. CONCLUSION: LF-RTMS attenuated social disability without affecting repetitive behavior, locomotion, anxiety, or depression. Changes in the expression of GABAergic and glutamatergic neuronal synaptic proteins in the hippocampus were also observed.

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