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Updated: Apr 17, 2026

Rapid Detection of Neurodevelopmental Phenotypes in Human Neural Precursor Cells NPCs
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Complex genotype-phenotype relationships in neurodevelopmental disorders.

Elad Dvir1, Eran Meshorer2, Sagiv Shifman1

  • 1Department of Genetics, The Alexander Silberman Institute of Life Sciences, Edmond J. Safra Campus, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.

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|April 15, 2026
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Summary
This summary is machine-generated.

Genetic variations in neurodevelopmental disorders (NDDs) cause diverse symptoms. Understanding interacting factors like environment and genetics is key to improving diagnosis and treatments for NDDs.

Keywords:
developmental noisegenetic modifiersgene–environment interactionsgenotype–phenotype relationshipneurodevelopmental disordersphenotypic heterogeneity

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Area of Science:

  • Genetics
  • Neuroscience
  • Developmental Biology

Background:

  • Hundreds of high-confidence risk genes linked to neurodevelopmental disorders (NDDs) identified via sequencing.
  • Significant clinical presentation heterogeneity observed in individuals with pathogenic variants in the same NDD gene.

Purpose of the Study:

  • To propose that interacting factors modulate phenotypic outcomes of pathogenic variants in NDDs.
  • To highlight the need for integrative approaches to resolve these modulating factors.

Main Methods:

  • Integrative approaches combining population-scale genetics and functional genomics.
  • Environmental monitoring and quantitative assessments of stochastic developmental variation.

Main Results:

  • Heterogeneity in NDDs is attributed to variant-level features, genomic modifying variation, environmental exposures, and developmental noise.
  • These factors interact to influence phenotypic outcomes.

Conclusions:

  • Elucidating the etiology of NDDs requires understanding these complex interacting factors.
  • Improved understanding is critical for advancing diagnostic and personalized therapeutic strategies for NDDs.