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Automated Operant Assessments of Huntington's Disease Mouse Models
1Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, Wales, UK. YhnellE@cardiff.ac.uk.
Insights
Huntington's disease mouse models require behavioral testing to assess motor, cognitive, and psychiatric symptoms. Operant testing provides an objective method for characterizing these deficits and evaluating potential therapeutics.
Area of Science:
- Neuroscience
- Behavioral Science
- Genetics
Background:
- Huntington's disease (HD) is characterized by motor, cognitive, and psychiatric symptoms, with cognitive decline often preceding motor deficits.
- Accurate recapitulation of human HD symptoms in mouse models is crucial for research and therapeutic development.
- Behavioral characterization is essential to validate the suitability of HD mouse models.
Purpose of the Study:
- To review commonly used operant behavioral tests for assessing HD mouse models.
- To highlight the utility of operant testing in dissociating motor, cognitive, and psychiatric aspects of HD in mice.
- To guide the selection of appropriate behavioral paradigms for HD research.
Main Methods:
- Overview of established operant behavioral paradigms.
- Focus on automated and objective behavioral profiling techniques.
- Application of operant testing for characterizing HD mouse models.
Main Results:
- Operant behavioral testing effectively differentiates motor, cognitive, and psychiatric dysfunction in HD mouse models.
- This methodology allows for objective and automated assessment of behavioral phenotypes.
- Operant tests are valuable for evaluating the efficacy of experimental therapeutics in HD models.
Conclusions:
- Operant behavioral testing is a suitable and objective method for characterizing HD mouse models.
- This approach is vital for advancing our understanding of HD pathogenesis and for preclinical therapeutic testing.
- Standardized operant testing protocols enhance the reliability and translational value of HD mouse studies.
Abstract:
Huntington's disease (HD) presents clinically with a triad of motor, cognitive, and psychiatric symptoms. Cognitive symptoms often occur early within the disease progression, prior to the onset of motor symptoms, and they are significantly burdensome to people who are affected by HD. In order to determine the suitability of mouse models of HD in recapitulating the human condition, these models must be behaviorally tested and characterized. Operant behavioral testing offers an automated and objective method of behaviorally profiling motor, cognitive, and psychiatric dysfunction in HD mice. Furthermore, operant testing can also be employed to determine any behavioral changes observed after any associated interventions or experimental therapeutics. We here present an overview of the most commonly used operant behavioral tests to dissociate motor, cognitive, and psychiatric aspects of mouse models of HD.