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NC3Rs: National Centre for the Replacement Refinement & Reduction of Animals in Research
Partnerships and impact awards

Sharing new non-invasive circadian phenotyping methods

Headshot of Stuart Peirson

At a glance

Completed
Award date
September 2020 - December 2022
Grant amount
£35,548
Institute
University of Oxford

R

  • Reduction
  • Refinement

Overview

Why did we fund this project?

This award aims to refine circadian rhythm studies by using non-invasive methods to measure sleep patterns and body temperature.

Circadian rhythms regulate virtually all aspects of behaviour and physiology in many plants, animals, fungi and certain bacterial species. A disrupted circadian rhythm is a hallmark of many disease, such as cancer and in neurodegenerative disorders. Activity levels and body temperatures can be analysed to monitor circadian rhythms, which typically requires invasive surgical procedures under general anaesthesia to implant electrodes. Professor Stuart Peirson has developed a new method of measuring sleep and body temperature using sensors placed above the animal’s home cage that can detect movement or heat signatures. These avoid the need for invasive surgeries in circadian rhythm studies.

Stuart will host a number of hands-on workshops in Oxford to train researchers from five different research groups in Berlin in the refined techniques. He will also develop online training to allow others to take up the methods. Analysis of circadian rhythms in this way generates large amounts of data, these will be hosted on a database to enable other researchers to access this data.

This project was awarded under the skills and knowledge transfer scheme, which ran from 2017 to 2022, supporting the exchange and uptake of models, tools or technologies with immediate and deliverable 3Rs impacts. The NC3Rs continues to provide funding to build new collaborations between developers and end-users through our partnerships and impact awards to catalyse the transfer of 3Rs methods.

Publications

  1. Brown LA et al. (2020). Simultaneous Assessment of Circadian Rhythms and Sleep in Mice Using Passive Infrared Sensors: A User's Guide. Current Protocols in Mouse Biology 10(3):e81. doi: 10.1002/cpmo.81(link is external)