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JOURNAL ARTICLE
Danushka Bandara, Kyle Riccardi
This study explores the genetic risk associations with autism spectrum disorder (ASD) using graph neural networks (GNNs), leveraging the Sfari dataset and protein interaction network (PIN) data. We built a gene network with genes as nodes, chromosome band location as node features, and gene interactions as edges. Graph models were employed to classify the autism risk associated with newly introduced genes (test set). Three classification tasks were undertaken to test the ability of our models: binary risk association, multi-class risk association, and syndromic gene association...
April 1, 2024: Genes
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JOURNAL ARTICLE
Annaluisa Ranieri, Ilaria La Monica, Maria Rosaria Di Iorio, Barbara Lombardo, Lucio Pastore
Neurodevelopmental disorders are a group of complex multifactorial disorders characterized by cognitive impairment, communication deficits, abnormal behaviour, and/or motor skills resulting from abnormal neural development. Copy number variants (CNVs) are genetic alterations often associated with neurodevelopmental disorders. We evaluated the diagnostic efficacy of the array-comparative genomic hybridization (a-CGH) method and its relevance as a routine diagnostic test in patients with neurodevelopmental disorders for the identification of the molecular alterations underlying or contributing to the clinical manifestations...
March 28, 2024: Genes
#3
JOURNAL ARTICLE
Itay Tokatly Latzer, Jean-Baptiste Roullet, Wardiya Afshar-Saber, Henry H C Lee, Mariarita Bertoldi, Gabrielle E McGinty, Melissa L DiBacco, Erland Arning, Melissa Tsuboyama, Alexander Rotenberg, Thomas Opladen, Kathrin Jeltsch, Àngels García-Cazorla, Natalia Juliá-Palacios, K Michael Gibson, Mustafa Sahin, Phillip L Pearl
BACKGROUND: Succinic semialdehyde dehydrogenase deficiency (SSADHD) represents a model neurometabolic disease at the fulcrum of translational research within the Boston Children's Hospital Intellectual and Developmental Disabilities Research Centers (IDDRC), including the NIH-sponsored natural history study of clinical, neurophysiological, neuroimaging, and molecular markers, patient-derived induced pluripotent stem cells (iPSC) characterization, and development of a murine model for tightly regulated, cell-specific gene therapy...
April 24, 2024: Journal of Neurodevelopmental Disorders
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JOURNAL ARTICLE
Jiajun Shi, Wanqing Wen, Jirong Long, Eric R Gamazon, Ran Tao, Qiuyin Cai
BACKGROUND: Patients with certain psychiatric disorders have increased lung cancer incidence. However, establishing a causal relationship through traditional epidemiological methods poses challenges. METHODS: Available summary statistics of genome-wide association studies of cigarette smoking, lung cancer, and eight psychiatric disorders, including attention deficit/hyperactivity disorder (ADHD), autism, depression, major depressive disorder, bipolar disorder, insomnia, neuroticism, and schizophrenia (range N: 46,350-1,331,010) were leveraged to estimate genetic correlations using Linkage Disequilibrium Score Regression and assess causal effect of each psychiatric disorder on lung cancer using two-sample Mendelian randomization (MR) models, comprising inverse-variance weighted (IVW), weighted median, MR-Egger, pleiotropy residual sum and outlier testing (MR-PRESSO), and a constrained maximum likelihood approach (cML-MR)...
April 23, 2024: Journal of Affective Disorders
#5
JOURNAL ARTICLE
Aniket Bhattacharya, Paola Parlanti, Luca Cavallo, Edward Farrow, Tyler Spivey, Alessandra Renieri, Francesca Mari, M Chiara Manzini
Intellectual disability (ID) and autism spectrum disorder (ASD) are genetically heterogeneous with hundreds of identified risk genes, most affecting only a few patients. Novel missense variants in these genes are being discovered as clinical exome sequencing is now routinely integrated into diagnosis, yet most of them are annotated as variants of uncertain significance (VUS). VUSs are a major roadblock in using patient genetics to inform clinical action. We developed a framework to characterize VUSs in Coiled-coil and C2 domain containing 1A (CC2D1A), a gene causing autosomal recessive ID with comorbid ASD in 40% of cases...
April 23, 2024: Human Molecular Genetics
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JOURNAL ARTICLE
Robert Klitzman, Ekaterina Bezborodko, Wendy K Chung, Paul S Appelbaum
BACKGROUND: Autism self-advocates' views regarding genetic tests for autism are important, but critical questions about their perspectives arise. METHODS: We interviewed 11 autism self-advocates, recruited through autism self-advocacy websites, for 1 h each. RESULTS: Interviewees viewed genetic testing and its potential pros and cons through the lens of their own indiviudal perceived challenges, needs and struggles, especially concerning stigma and discrimination, lack of accommodations and misunderstandings from society about autism, their particular needs for services, and being blamed by others and by themselves for autistic traits...
April 21, 2024: AJOB Empirical Bioethics
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JOURNAL ARTICLE
Hitomi Kurahashi, Kazuo Kunisawa, Akihiro Mouri
Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder characterized by social deficits and stereotyped, repetitive patterns of behaviors, limited interests, and cognitive impairment. Especially, social deficit has been considered a core feature of ASD. Because of the limitations of the experimental approach in humans, valid animal models are essential in an effort to identify novel therapeutics for social deficits in ASD. The genetic and environmental factors are clinically relevant to the pathophysiology of ASD...
2024: Methods in Molecular Biology
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JOURNAL ARTICLE
Kaustubh Supekar, Carlo de Los Angeles, Srikanth Ryali, Leila Kushan, Charlie Schleifer, Gabriela Repetto, Nicolas A Crossley, Tony Simon, Carrie E Bearden, Vinod Menon
A major genetic risk factor for psychosis is 22q11.2 deletion (22q11.2DS). However, robust and replicable functional brain signatures of 22q11.2DS and 22q11.2DS-associated psychosis remain elusive due to small sample sizes and a focus on small single-site cohorts. Here, we identify functional brain signatures of 22q11.2DS and 22q11.2DS-associated psychosis, and their links with idiopathic early psychosis, using one of the largest multi-cohort data to date. We obtained multi-cohort clinical phenotypic and task-free fMRI data from 856 participants (101 22q11...
April 12, 2024: Molecular Psychiatry
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JOURNAL ARTICLE
Aanchal Sharma, Demetra Pappas, Joseph Gonzalez-Heydrich, Nancy R Sullivan, Sarah S Nyp
Nick is a 5-year-old boy who began displaying self-stimulating behaviors and decreased social interactions shortly before turning 3 years. At the age of 3.5 years, he was diagnosed with autism spectrum disorder by a local developmental-behavioral pediatrician. His parents recall that the physician described Nick to be "high functioning" and encouraged them to expect that he would attend college and live independently as an adult. Upon receiving the diagnosis, intervention was initiated using an applied behavioral analysis (ABA) approach...
April 11, 2024: Journal of Developmental and Behavioral Pediatrics: JDBP
#10
JOURNAL ARTICLE
Henri Margot, Adrien Pizano, Anouck Amestoy, Didier Lacombe, Camille Berges, Claire Beneteau, A Micheil Innes
Marfanoid habitus and intellectual disability (MHID) co-occur in multiple neurodevelopmental disorders (NDD). Among those, Lujan-Fryns, an X-linked genetic disorder associated with variants in MED12 was the first such syndrome identified. Accurate molecular diagnosis for these MHID syndromes remains a challenge due to significant clinical and genetic heterogeneity. We present a case report of a 20-year-old male patient with MHID and severe social anxiety. A comprehensive clinical evaluation, including morphotype assessment, cognitive, and psychometric and genetic testing, was conducted to provide a detailed understanding of the patient's complex clinical presentation...
April 9, 2024: American Journal of Medical Genetics. Part C, Seminars in Medical Genetics
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JOURNAL ARTICLE
Nathalia Garrido-Torres, Renata Marqués Rodríguez, María Alemany-Navarro, Javier Sánchez-García, Susana García-Cerro, María Irene Ayuso, Antonio González-Meneses, Amalia Martinez-Mir, Miguel Ruiz-Veguilla, Benedicto Crespo-Facorro
Several studies show great heterogeneity in the type of genetic test requested and in the clinicopathological characteristics of patients with ASD. The following study aims, firstly, to explore the factors that might influence professionals' decisions about the appropriateness of requesting genetic testing for their patients with ASD and, secondly, to determine the prevalence of genetic alterations in a representative sample of children with a diagnosis of ASD. Methods: We studied the clinical factors associated with the request for genetic testing in a sample of 440 children with ASD and the clinical factors of present genetic alterations...
April 8, 2024: European Child & Adolescent Psychiatry
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JOURNAL ARTICLE
Julia Wynn, Anna Karlsen, Benjamin Huber, Alina Levine, Amanie Salem, L Casey White, Marti Luby, Ekaterina Bezborodko, Sabrina Xiao, Wendy K Chung, Robert L Klitzman, Paul S Appelbaum
Genetic testing is recommended as part of an autism assessment, and most parents support genetic testing for their minor children. However, the impact on parents of receiving a monogenetic/ copy number variant diagnosis for autism in their child is not well understood. To explore this, we surveyed and interviewed parents of children in the SPARK study, a study of autism that includes genetic testing. Surveys were administered one month before and one and 12 months after parents received their child's genetic result...
April 5, 2024: Journal of Autism and Developmental Disorders
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JOURNAL ARTICLE
Sadhna Rao, Anastasiia Sadybekov, David C DeWitt, Joanna Lipka, Vsevolod Katritch, Bruce E Herring
BACKGROUND: Glutamatergic synapse dysfunction is believed to underlie the development of Autism Spectrum Disorder (ASD) and Intellectual Disability (ID) in many individuals. However, identification of genetic markers that contribute to synaptic dysfunction in these individuals is notoriously difficult. Based on genomic analysis, structural modeling, and functional data, we recently established the involvement of the TRIO-RAC1 pathway in ASD and ID. Furthermore, we identified a pathological de novo missense mutation hotspot in TRIO's GEF1 domain...
April 3, 2024: Molecular Autism
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JOURNAL ARTICLE
Xuechen Tang, Nadine J Ortner, Yuliia V Nikonishyna, Monica L Fernández-Quintero, Janik Kokot, Jörg Striessnig, Klaus R Liedl
Voltage-gated L-type Cav1.3 Ca2+ channels support numerous physiological functions including neuronal excitability, sinoatrial node pacemaking, hearing, and hormone secretion. De novo missense mutations in the gene of their pore-forming α1-subunit (CACNA1D) induce severe gating defects which lead to autism spectrum disorder and a more severe neurological disorder with and without endocrine symptoms. The number of CACNA1D variants reported is constantly rising, but their pathogenic potential often remains unclear, which complicates clinical decision-making...
March 29, 2024: European Journal of Human Genetics: EJHG
#15
REVIEW
YeEun Tak, Andrea Schneider, Ellery Santos, Jamie Leah Randol, Flora Tassone, Paul Hagerman, Randi J Hagerman
Fragile X syndrome (FXS) is the leading inherited cause of intellectual disability (ID) and single gene cause of autism. Although most patients with FXS and the full mutation (FM) have complete methylation of the fragile X messenger ribonucleoprotein 1 ( FMR1 ) gene, some have mosaicism in methylation and/or CGG repeat size, and few have completely unmethylated FM alleles. Those with a complete lack of methylation are rare, with little literature about the cognitive and behavioral phenotypes of these individuals...
March 3, 2024: Genes
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JOURNAL ARTICLE
Khrystyna Shchubelka, Liudmyla Turova, Walter Wolfsberger, Kelly Kalanquin, Krista Williston, Oleksii Kurutsa, Anastasiia Makovetska, Yaroslava Hasynets, Violeta Mirutenko, Mykhailo Vakerych, Taras K Oleksyk
BACKGROUND: Global developmental delay or intellectual disability usually accompanies various genetic disorders as a part of the syndrome, which may include seizures, autism spectrum disorder and multiple congenital abnormalities. Next-generation sequencing (NGS) techniques have improved the identification of pathogenic variants and genes related to developmental delay. This study aimed to evaluate the yield of whole exome sequencing (WES) and neurodevelopmental disorder gene panel sequencing in a pediatric cohort from Ukraine...
March 27, 2024: Journal of Neurodevelopmental Disorders
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JOURNAL ARTICLE
Aurore Curie, Laurence Lion-François, Vassili Valayannopoulos, Nathalie Perreton, Marie Gavanon, Nathalie Touil, Amandine Brun-Laurisse, Fahra Gheurbi, Marion Buchy, Hulya Halep, David Cheillan, Catherine Mercier, Anaïs Brassier, Béatrice Desnous, Behrouz Kassai, Pascale De Lonlay, Vincent Des Portes
BACKGROUND AND OBJECTIVES: Creatine transporter deficiency (CTD) is a rare X-linked genetic disorder characterized by intellectual disability (ID). We evaluated the clinical characteristics and trajectory of patients with CTD and the impact of the disease on caregivers to identify relevant endpoints for future therapeutic trials. METHODS: As part of a French National Research Program, patients with CTD were included based on (1) a pathogenic SLC6A8 variant and (2) ID and/or autism spectrum disorder...
April 23, 2024: Neurology
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JOURNAL ARTICLE
Hideo Hagihara, Hirotaka Shoji, Satoko Hattori, Giovanni Sala, Yoshihiro Takamiya, Mika Tanaka, Masafumi Ihara, Mihiro Shibutani, Izuho Hatada, Kei Hori, Mikio Hoshino, Akito Nakao, Yasuo Mori, Shigeo Okabe, Masayuki Matsushita, Anja Urbach, Yuta Katayama, Akinobu Matsumoto, Keiichi I Nakayama, Shota Katori, Takuya Sato, Takuji Iwasato, Haruko Nakamura, Yoshio Goshima, Matthieu Raveau, Tetsuya Tatsukawa, Kazuhiro Yamakawa, Noriko Takahashi, Haruo Kasai, Johji Inazawa, Ikuo Nobuhisa, Tetsushi Kagawa, Tetsuya Taga, Mohamed Darwish, Hirofumi Nishizono, Keizo Takao, Kiran Sapkota, Kazutoshi Nakazawa, Tsuyoshi Takagi, Haruki Fujisawa, Yoshihisa Sugimura, Kyosuke Yamanishi, Lakshmi Rajagopal, Nanette Deneen Hannah, Herbert Y Meltzer, Tohru Yamamoto, Shuji Wakatsuki, Toshiyuki Araki, Katsuhiko Tabuchi, Tadahiro Numakawa, Hiroshi Kunugi, Freesia L Huang, Atsuko Hayata-Takano, Hitoshi Hashimoto, Kota Tamada, Toru Takumi, Takaoki Kasahara, Tadafumi Kato, Isabella A Graef, Gerald R Crabtree, Nozomi Asaoka, Hikari Hatakama, Shuji Kaneko, Takao Kohno, Mitsuharu Hattori, Yoshio Hoshiba, Ryuhei Miyake, Kisho Obi-Nagata, Akiko Hayashi-Takagi, Léa J Becker, Ipek Yalcin, Yoko Hagino, Hiroko Kotajima-Murakami, Yuki Moriya, Kazutaka Ikeda, Hyopil Kim, Bong-Kiun Kaang, Hikari Otabi, Yuta Yoshida, Atsushi Toyoda, Noboru H Komiyama, Seth G N Grant, Michiru Ida-Eto, Masaaki Narita, Ken-Ichi Matsumoto, Emiko Okuda-Ashitaka, Iori Ohmori, Tadayuki Shimada, Kanato Yamagata, Hiroshi Ageta, Kunihiro Tsuchida, Kaoru Inokuchi, Takayuki Sassa, Akio Kihara, Motoaki Fukasawa, Nobuteru Usuda, Tayo Katano, Teruyuki Tanaka, Yoshihiro Yoshihara, Michihiro Igarashi, Takashi Hayashi, Kaori Ishikawa, Satoshi Yamamoto, Naoya Nishimura, Kazuto Nakada, Shinji Hirotsune, Kiyoshi Egawa, Kazuma Higashisaka, Yasuo Tsutsumi, Shoko Nishihara, Noriyuki Sugo, Takeshi Yagi, Naoto Ueno, Tomomi Yamamoto, Yoshihiro Kubo, Rie Ohashi, Nobuyuki Shiina, Kimiko Shimizu, Sayaka Higo-Yamamoto, Katsutaka Oishi, Hisashi Mori, Tamio Furuse, Masaru Tamura, Hisashi Shirakawa, Daiki X Sato, Yukiko U Inoue, Takayoshi Inoue, Yuriko Komine, Tetsuo Yamamori, Kenji Sakimura, Tsuyoshi Miyakawa
Increased levels of lactate, an end-product of glycolysis, have been proposed as a potential surrogate marker for metabolic changes during neuronal excitation. These changes in lactate levels can result in decreased brain pH, which has been implicated in patients with various neuropsychiatric disorders. We previously demonstrated that such alterations are commonly observed in five mouse models of schizophrenia, bipolar disorder, and autism, suggesting a shared endophenotype among these disorders rather than mere artifacts due to medications or agonal state...
March 26, 2024: ELife
#19
REVIEW
Jannis Wißfeld, Tawfik Abou Assale, German Cuevas-Rios, Huan Liao, Harald Neumann
Sialic acids, commonly found as the terminal carbohydrate on the glycocalyx of mammalian cells, are pivotal checkpoint inhibitors of the innate immune system, particularly within the central nervous system (CNS). Sialic acid-binding immunoglobulin-like lectins (SIGLECs) expressed on microglia are key players in maintaining microglial homeostasis by recognizing intact sialylation. The finely balanced sialic acid-SIGLEC system ensures the prevention of excessive and detrimental immune responses in the CNS. However, loss of sialylation and SIGLEC receptor dysfunctions contribute to several chronic CNS diseases...
2024: Frontiers in Neurology
#20
JOURNAL ARTICLE
Takumi Nakamura, Toru Yoshihara, Chiharu Tanegashima, Mitsutaka Kadota, Yuki Kobayashi, Kurara Honda, Mizuho Ishiwata, Junko Ueda, Tomonori Hara, Moe Nakanishi, Toru Takumi, Shigeyoshi Itohara, Shigehiro Kuraku, Masahide Asano, Takaoki Kasahara, Kazuo Nakajima, Takashi Tsuboi, Atsushi Takata, Tadafumi Kato
Recent studies have consistently demonstrated that the regulation of chromatin and gene transcription plays a pivotal role in the pathogenesis of neurodevelopmental disorders. Among many genes involved in these pathways, KMT2C, encoding one of the six known histone H3 lysine 4 (H3K4) methyltransferases in humans and rodents, was identified as a gene whose heterozygous loss-of-function variants are causally associated with autism spectrum disorder (ASD) and the Kleefstra syndrome phenotypic spectrum. However, little is known about how KMT2C haploinsufficiency causes neurodevelopmental deficits and how these conditions can be treated...
March 26, 2024: Molecular Psychiatry
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