LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 123

Search options

  1. Article ; Online: Neuropsychiatric biomarker discovery: go big or go home.

    Ljungdahl, Alicia / Sanders, Stephan J

    Trends in molecular medicine

    2023  Volume 29, Issue 11, Page(s) 878–879

    Abstract: Technological advances have enabled high-throughput omics assays, such as parallelized screening of lipids across plasma samples. Pioneering a new paradigm for neuropsychiatric biomarker discovery, Yap et al. describe a large-scale systematic analysis of ...

    Abstract Technological advances have enabled high-throughput omics assays, such as parallelized screening of lipids across plasma samples. Pioneering a new paradigm for neuropsychiatric biomarker discovery, Yap et al. describe a large-scale systematic analysis of comprehensive phenotypic, genotypic, environmental, and lipidomic data to unravel the intricate interplay between these and autism-associated traits.
    MeSH term(s) Humans ; Biomarkers/analysis ; Biomedical Research ; High-Throughput Screening Assays
    Chemical Substances Biomarkers
    Language English
    Publishing date 2023-09-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 2036490-8
    ISSN 1471-499X ; 1471-4914
    ISSN (online) 1471-499X
    ISSN 1471-4914
    DOI 10.1016/j.molmed.2023.09.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Next-Generation Sequencing in Autism Spectrum Disorder.

    Sanders, Stephan J

    Cold Spring Harbor perspectives in medicine

    2019  Volume 9, Issue 8

    Abstract: Autism spectrum disorder (ASD) is a common disorder that causes substantial distress. Heritability studies consistently show a strong genetic contribution, raising the hope that identifying ASD-associated genetic variants will offer insights into ... ...

    Abstract Autism spectrum disorder (ASD) is a common disorder that causes substantial distress. Heritability studies consistently show a strong genetic contribution, raising the hope that identifying ASD-associated genetic variants will offer insights into neurobiology and ultimately therapeutics. Next-generation sequencing (NGS) enabled the identification of disruptive variants throughout protein-coding regions of the genome. Alongside large cohorts and novel statistical methods, these NGS methods revolutionized ASD gene discovery. NGS methods have also contributed substantially to functional genetic data, such as gene expression, used to understand the neurobiological consequences of disrupting these ASD-associated genes. These functional data are also critical for annotating the noncoding genome as whole-genome sequencing (WGS) begins to provide initial insights outside of protein-coding regions. NGS methods still have a major role to play, as do similarly transformative advances in stem cell and gene-editing methods, in translating genetic discoveries into a first generation of ASD therapeutics.
    MeSH term(s) Animals ; Autism Spectrum Disorder/genetics ; Disease Models, Animal ; Genetic Predisposition to Disease ; High-Throughput Nucleotide Sequencing/methods ; Humans ; Mutation, Missense ; Whole Genome Sequencing
    Language English
    Publishing date 2019-08-01
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Review
    ISSN 2157-1422
    ISSN (online) 2157-1422
    DOI 10.1101/cshperspect.a026872
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: First glimpses of the neurobiology of autism spectrum disorder.

    Sanders, Stephan J

    Current opinion in genetics & development

    2015  Volume 33, Page(s) 80–92

    Abstract: Rapid progress in identifying the genes underlying autism spectrum disorder (ASD) has provided the substrate for a first wave of analyses into the underlying neurobiology. This review describes the consensus across these diverse analyses, highlighting ... ...

    Abstract Rapid progress in identifying the genes underlying autism spectrum disorder (ASD) has provided the substrate for a first wave of analyses into the underlying neurobiology. This review describes the consensus across these diverse analyses, highlighting two distinct sets of genes: 1) Genes that regulate chromatin and transcription, especially in cortical projection neurons and striatal medium spiny neurons during mid-fetal development; and 2) Genes involved in synapse development and function, especially during infancy and early childhood, and differentially expressed in the post mortem ASD brain. Both gene sets are also regulatory targets of the ASD genes CHD8 and FMRP. It remains to be seen whether these represent two independent paths to the ASD phenotype or two components of a common path.
    MeSH term(s) Autism Spectrum Disorder/genetics ; Autism Spectrum Disorder/metabolism ; Autism Spectrum Disorder/pathology ; Child ; Child, Preschool ; Chromatin/genetics ; DNA-Binding Proteins/genetics ; Fragile X Mental Retardation Protein/genetics ; Gene Expression Regulation, Developmental ; Humans ; Infant ; Infant, Newborn ; Neurons/metabolism ; Neurons/pathology ; Synapses/genetics ; Synapses/metabolism ; Transcription Factors/genetics ; Transcription, Genetic ; Visual Cortex/growth & development ; Visual Cortex/metabolism
    Chemical Substances CHD8 protein, human ; Chromatin ; DNA-Binding Proteins ; FMR1 protein, human ; Transcription Factors ; Fragile X Mental Retardation Protein (139135-51-6)
    Language English
    Publishing date 2015-08
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1077312-5
    ISSN 1879-0380 ; 0959-437X
    ISSN (online) 1879-0380
    ISSN 0959-437X
    DOI 10.1016/j.gde.2015.10.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Clinical impact of splicing in neurodevelopmental disorders.

    Sanders, Stephan J / Schwartz, Grace B / Farh, Kyle Kai-How

    Genome medicine

    2020  Volume 12, Issue 1, Page(s) 36

    Abstract: Clinical exome sequencing is frequently used to identify gene-disrupting variants in individuals with neurodevelopmental disorders. While splice-disrupting variants are known to contribute to these disorders, clinical interpretation of cryptic splice ... ...

    Abstract Clinical exome sequencing is frequently used to identify gene-disrupting variants in individuals with neurodevelopmental disorders. While splice-disrupting variants are known to contribute to these disorders, clinical interpretation of cryptic splice variants outside of the canonical splice site has been challenging. Here, we discuss papers that improve such detection.
    MeSH term(s) Humans ; Neurodevelopmental Disorders/genetics ; RNA Splicing
    Language English
    Publishing date 2020-04-24
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2484394-5
    ISSN 1756-994X ; 1756-994X
    ISSN (online) 1756-994X
    ISSN 1756-994X
    DOI 10.1186/s13073-020-00737-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: AlphaMissense is better correlated with functional assays of missense impact than earlier prediction algorithms.

    Ljungdahl, Alicia / Kohani, Sayeh / Page, Nicholas F / Wells, Eloise S / Wigdor, Emilie M / Dong, Shan / Sanders, Stephan J

    bioRxiv : the preprint server for biology

    2023  

    Abstract: Missense variants that alter a single amino acid in the encoded protein contribute to many human disorders but pose a substantial challenge in interpretation. Though these variants can be reliably identified through sequencing, distinguishing the ... ...

    Abstract Missense variants that alter a single amino acid in the encoded protein contribute to many human disorders but pose a substantial challenge in interpretation. Though these variants can be reliably identified through sequencing, distinguishing the clinically significant ones remains difficult, such that "Variants of Unknown Significance" outnumber those classified as "Pathogenic" or "Likely Pathogenic." Numerous
    Language English
    Publishing date 2023-10-27
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.10.24.562294
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Appreciating the Population-wide Impact of Copy Number Variants on Cognition.

    An, Joon-Yong / Sanders, Stephan J

    Biological psychiatry

    2017  Volume 82, Issue 2, Page(s) 78–80

    Language English
    Publishing date 2017-07-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209434-4
    ISSN 1873-2402 ; 0006-3223
    ISSN (online) 1873-2402
    ISSN 0006-3223
    DOI 10.1016/j.biopsych.2017.05.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Characterization of De Novo Promoter Variants in Autism Spectrum Disorder with Massively Parallel Reporter Assays.

    Koesterich, Justin / An, Joon-Yong / Inoue, Fumitaka / Sohota, Ajuni / Ahituv, Nadav / Sanders, Stephan J / Kreimer, Anat

    International journal of molecular sciences

    2023  Volume 24, Issue 4

    Abstract: Autism spectrum disorder (ASD) is a common, complex, and highly heritable condition with contributions from both common and rare genetic variations. While disruptive, rare variants in protein-coding regions clearly contribute to symptoms, the role of ... ...

    Abstract Autism spectrum disorder (ASD) is a common, complex, and highly heritable condition with contributions from both common and rare genetic variations. While disruptive, rare variants in protein-coding regions clearly contribute to symptoms, the role of rare non-coding remains unclear. Variants in these regions, including promoters, can alter downstream RNA and protein quantity; however, the functional impacts of specific variants observed in ASD cohorts remain largely uncharacterized. Here, we analyzed 3600 de novo mutations in promoter regions previously identified by whole-genome sequencing of autistic probands and neurotypical siblings to test the hypothesis that mutations in cases have a greater functional impact than those in controls. We leveraged massively parallel reporter assays (MPRAs) to detect transcriptional consequences of these variants in neural progenitor cells and identified 165 functionally high confidence de novo variants (HcDNVs). While these HcDNVs are enriched for markers of active transcription, disruption to transcription factor binding sites, and open chromatin, we did not identify differences in functional impact based on ASD diagnostic status.
    MeSH term(s) Humans ; Autism Spectrum Disorder/genetics ; Genetic Predisposition to Disease ; Mutation ; Autistic Disorder/genetics ; Promoter Regions, Genetic
    Language English
    Publishing date 2023-02-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24043509
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Physical and functional convergence of the autism risk genes Scn2a and Ank2 in neocortical pyramidal cell dendrites.

    Nelson, Andrew D / Catalfio, Amanda M / Gupta, Julie P / Min, Lia / Caballero-Florán, René N / Dean, Kendall P / Elvira, Carina C / Derderian, Kimberly D / Kyoung, Henry / Sahagun, Atehsa / Sanders, Stephan J / Bender, Kevin J / Jenkins, Paul M

    Neuron

    2024  Volume 112, Issue 7, Page(s) 1133–1149.e6

    Abstract: Dysfunction in sodium channels and their ankyrin scaffolding partners have both been implicated in neurodevelopmental disorders, including autism spectrum disorder (ASD). In particular, the genes SCN2A, which encodes the sodium channel ... ...

    Abstract Dysfunction in sodium channels and their ankyrin scaffolding partners have both been implicated in neurodevelopmental disorders, including autism spectrum disorder (ASD). In particular, the genes SCN2A, which encodes the sodium channel Na
    MeSH term(s) Animals ; Mice ; Ankyrins/genetics ; Ankyrins/metabolism ; Autism Spectrum Disorder/genetics ; Autism Spectrum Disorder/metabolism ; Autistic Disorder/metabolism ; Dendrites/physiology ; NAV1.2 Voltage-Gated Sodium Channel/genetics ; Neocortex/metabolism ; Pyramidal Cells/physiology
    Chemical Substances Ankyrins ; NAV1.2 Voltage-Gated Sodium Channel ; Scn2a protein, mouse ; Ank2 protein, mouse
    Language English
    Publishing date 2024-01-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 808167-0
    ISSN 1097-4199 ; 0896-6273
    ISSN (online) 1097-4199
    ISSN 0896-6273
    DOI 10.1016/j.neuron.2024.01.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: CWAS-Plus: Estimating category-wide association of rare noncoding variation from whole-genome sequencing data with cell-type-specific functional data.

    Kim, Yujin / Jeong, Minwoo / Koh, In Gyeong / Kim, Chanhee / Lee, Hyeji / Kim, Jae Hyun / Yurko, Ronald / Kim, Il Bin / Park, Jeongbin / Werling, Donna M / Sanders, Stephan J / An, Joon-Yong

    medRxiv : the preprint server for health sciences

    2024  

    Abstract: Variants in cis-regulatory elements link the noncoding genome to human brain pathology; however, detailed analytic tools for understanding the association between cell-level brain pathology and noncoding variants are lacking. CWAS-Plus, adapted from a ... ...

    Abstract Variants in cis-regulatory elements link the noncoding genome to human brain pathology; however, detailed analytic tools for understanding the association between cell-level brain pathology and noncoding variants are lacking. CWAS-Plus, adapted from a Python package for category-wide association testing (CWAS) employs both whole-genome sequencing and user-provided functional data to enhance noncoding variant analysis, with a faster and more efficient execution of the CWAS workflow. Here, we used single-nuclei assay for transposase-accessible chromatin with sequencing to facilitate CWAS-guided noncoding variant analysis at cell-type specific enhancers and promoters. Examining autism spectrum disorder whole-genome sequencing data (n = 7,280), CWAS-Plus identified noncoding
    Key points: CWAS-Plus efficiently identifies noncoding associations in WGS data, supporting user-friendly categorization and burden enrichment tests.CWAS-Plus integrates various functional datasets, emphasizing cell-type-specific noncoding associations.CWAS-Plus provides a novel approach for multiple testing correction, enhancing the reliability of the results.Autism spectrum disorder risk noncoding variants are identified as enriched with transcription factors, suggesting their role in the pathology.Rare variant analysis with Alzheimer's disease samples reveals strong association with microglia, supporting the reliability of the results produced by CWAS-Plus.
    Language English
    Publishing date 2024-04-15
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2024.04.15.24305828
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Examining Sex Differences in Autism Heritability.

    Sandin, Sven / Yip, Benjamin H K / Yin, Weiyao / Weiss, Lauren A / Dougherty, Joseph D / Fass, Stuart / Constantino, John N / Hailin, Zhu / Turner, Tychele N / Marrus, Natasha / Gutmann, David H / Sanders, Stephan J / Christoffersson, Benjamin

    JAMA psychiatry

    2024  

    Abstract: Importance: Autism spectrum disorder (ASD) is a neurodevelopmental disorder more prevalent in males than in females. The cause of ASD is largely genetic, but the association of genetics with the skewed sex ratio is not yet understood. To our knowledge, ... ...

    Abstract Importance: Autism spectrum disorder (ASD) is a neurodevelopmental disorder more prevalent in males than in females. The cause of ASD is largely genetic, but the association of genetics with the skewed sex ratio is not yet understood. To our knowledge, no large population-based study has provided estimates of heritability by sex.
    Objective: To estimate the sex-specific heritability of ASD.
    Design, setting, and participants: This was a population-based, retrospective analysis using national health registers of nontwin siblings and cousins from Sweden born between January 1, 1985, and December 31, 1998, with follow-up to 19 years of age. Data analysis occurred from August 2022 to November 2023.
    Main outcomes and measures: Models were fitted to estimate the relative variance in risk for ASD occurrence owing to sex-specific additive genetics, shared environmental effects, and a common residual term. The residual term conceptually captured other factors that promote individual behavioral variation (eg, maternal effects, de novo variants, rare genetic variants not additively inherited, or gene-environment interactions). Estimates were adjusted for differences in prevalence due to birth year and maternal and paternal age by sex.
    Results: The sample included 1 047 649 individuals in 456 832 families (538 283 males [51.38%]; 509 366 females [48.62%]). Within the entire sample, 12 226 (1.17%) received a diagnosis of ASD, comprising 8128 (1.51%) males and 4098 (0.80%) females. ASD heritability was estimated at 87.0% (95% CI, 81.4%-92.6%) for males and 75.7% (95% CI, 68.4%-83.1%) for females with a difference in heritability estimated at 11.3% (95% CI, 1.0%-21.6%). There was no support for shared environmental contributions.
    Conclusions and relevance: These findings suggest that the degree of phenotypic variation attributable to genetic differences (heritability) differs between males and females, indicating that some of the underlying causes of the condition may differ between the 2 sexes. The skewed sex ratio in ASD may be partly explained by differences in genetic variance between the sexes.
    Language English
    Publishing date 2024-04-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2701203-7
    ISSN 2168-6238 ; 2168-622X
    ISSN (online) 2168-6238
    ISSN 2168-622X
    DOI 10.1001/jamapsychiatry.2024.0525
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top