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Behavioral Testing Design for Evaluation of Cognitive Disabilities.

Fabrice Riet1, Christophe Mittelhaeuser1, Aline Lux1

  • 1Université de Strasbourg, CNRS, INSERM, CELPHEDIA, PHENOMIN, Institut Clinique de la Souris (ICS), Illkirch, France.

Current Protocols
|February 23, 2022
PubMed
Summary

This study introduces a comprehensive behavioral screening protocol for mice to understand intellectual disabilities (ID). The proposed methods aid in identifying genetic pathways underlying cognitive dysfunction in neurodevelopmental diseases.

Keywords:
behavioral testsintellectual disabilitiesmutant micephenotyping pipeline

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Area of Science:

  • Neuroscience
  • Genetics
  • Behavioral Science

Background:

  • Intellectual disabilities (ID) are complex neurodevelopmental diseases with significant societal impact.
  • Mutant mouse models are crucial for understanding ID pathophysiology and developing therapies.
  • The heterogeneity of ID phenotypes necessitates robust experimental designs in functional genomic studies.

Purpose of the Study:

  • To propose an extensive behavioral screening protocol for mouse models of intellectual disabilities.
  • To provide detailed protocols for a systematic functional genomic approach.
  • To gain pathway-based insights into the mechanisms of cognitive dysfunction in humans.

Main Methods:

  • Developed and validated a systematic behavioral screen for mouse functional genomics.
  • Included protocols for assessing circadian activity, ingestive behavior, neurological reflexes, and motor abilities.
  • Utilized tests for anxiety, recognition memory, social behavior, working memory, and fear conditioning.

Main Results:

  • Successfully applied the extensive behavioral screen in a systematic mouse functional genomic approach.
  • Gained pathway-based insights into mechanisms leading to cognitive dysfunction.
  • Demonstrated the utility of the protocol in reducing false negatives and positives in genetic studies.

Conclusions:

  • The proposed behavioral screen provides a standardized workflow for studying intellectual disabilities in mice.
  • This approach facilitates the identification of genes and pathways involved in cognitive dysfunction.
  • The protocol aids in understanding the heterogeneous nature of neurodevelopmental diseases.