A low-cost device for cryoanesthesia of neonatal rodents

Studying the development of neural circuits in rodent models requires surgical access to the neonatal brain. Since commercially available stereotaxic and anesthetic equipment is designed for use in adults, reliable targeting of brain structures in such young animals can be challenging. Hypothermic c...

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Main Authors: Bradley B. Jamieson, Xavier Cano-Ferrer, George Konstantinou, Elisa de Launoit, Nicolas Renier, Albane Imbert, Johannes Kohl
Format: Article
Language:English
Published: Elsevier 2023-06-01
Series:HardwareX
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S246806722300024X
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author Bradley B. Jamieson
Xavier Cano-Ferrer
George Konstantinou
Elisa de Launoit
Nicolas Renier
Albane Imbert
Johannes Kohl
author_facet Bradley B. Jamieson
Xavier Cano-Ferrer
George Konstantinou
Elisa de Launoit
Nicolas Renier
Albane Imbert
Johannes Kohl
author_sort Bradley B. Jamieson
collection DOAJ
description Studying the development of neural circuits in rodent models requires surgical access to the neonatal brain. Since commercially available stereotaxic and anesthetic equipment is designed for use in adults, reliable targeting of brain structures in such young animals can be challenging. Hypothermic cooling (cryoanesthesia) has been used as a preferred anesthesia approach in neonates. This commonly involves submerging neonates in ice, an approach that is poorly controllable. We have developed an affordable, simple to construct device – CryoPup – that allows for fast and robust cryoanesthesia of rodent pups. CryoPup consists of a microcontroller controlling a Peltier element and a heat exchanger. It is capable of both cooling and heating, thereby also functioning as a heating pad during recovery. Importantly, it has been designed for size compatibility with common stereotaxic frames. We validate CryoPup in neonatal mice, demonstrating that it allows for rapid, reliable and safe cryoanesthesia and subsequent recovery. This open-source device will facilitate future studies into the development of neural circuits in the postnatal brain.
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spelling doaj.art-3cfb9996dfcb41e68d07dfd7c5f61a2d2023-06-24T05:18:16ZengElsevierHardwareX2468-06722023-06-0114e00417A low-cost device for cryoanesthesia of neonatal rodentsBradley B. Jamieson0Xavier Cano-Ferrer1George Konstantinou2Elisa de Launoit3Nicolas Renier4Albane Imbert5Johannes Kohl6State-dependent Neural Processing Laboratory, The Francis Crick Institute, 1 Midland Rd, London NW1 1AT, UKMaking STP, The Francis Crick Institute, 1 Midland Rd, London NW1 1AT, UKMaking STP, The Francis Crick Institute, 1 Midland Rd, London NW1 1AT, UK; Corresponding authors.Sorbonne Université, Paris Brain Institute - ICM, INSERM, CNRS, AP-HP, Hôpital de la Pitié Salpêtrière, Paris, FranceSorbonne Université, Paris Brain Institute - ICM, INSERM, CNRS, AP-HP, Hôpital de la Pitié Salpêtrière, Paris, FranceMaking STP, The Francis Crick Institute, 1 Midland Rd, London NW1 1AT, UKState-dependent Neural Processing Laboratory, The Francis Crick Institute, 1 Midland Rd, London NW1 1AT, UK; Corresponding authors.Studying the development of neural circuits in rodent models requires surgical access to the neonatal brain. Since commercially available stereotaxic and anesthetic equipment is designed for use in adults, reliable targeting of brain structures in such young animals can be challenging. Hypothermic cooling (cryoanesthesia) has been used as a preferred anesthesia approach in neonates. This commonly involves submerging neonates in ice, an approach that is poorly controllable. We have developed an affordable, simple to construct device – CryoPup – that allows for fast and robust cryoanesthesia of rodent pups. CryoPup consists of a microcontroller controlling a Peltier element and a heat exchanger. It is capable of both cooling and heating, thereby also functioning as a heating pad during recovery. Importantly, it has been designed for size compatibility with common stereotaxic frames. We validate CryoPup in neonatal mice, demonstrating that it allows for rapid, reliable and safe cryoanesthesia and subsequent recovery. This open-source device will facilitate future studies into the development of neural circuits in the postnatal brain.http://www.sciencedirect.com/science/article/pii/S246806722300024XCryoanesthesiaRodentsNeonatesPeltierStereotaxic surgeryThermoelectric device
spellingShingle Bradley B. Jamieson
Xavier Cano-Ferrer
George Konstantinou
Elisa de Launoit
Nicolas Renier
Albane Imbert
Johannes Kohl
A low-cost device for cryoanesthesia of neonatal rodents
HardwareX
Cryoanesthesia
Rodents
Neonates
Peltier
Stereotaxic surgery
Thermoelectric device
title A low-cost device for cryoanesthesia of neonatal rodents
title_full A low-cost device for cryoanesthesia of neonatal rodents
title_fullStr A low-cost device for cryoanesthesia of neonatal rodents
title_full_unstemmed A low-cost device for cryoanesthesia of neonatal rodents
title_short A low-cost device for cryoanesthesia of neonatal rodents
title_sort low cost device for cryoanesthesia of neonatal rodents
topic Cryoanesthesia
Rodents
Neonates
Peltier
Stereotaxic surgery
Thermoelectric device
url http://www.sciencedirect.com/science/article/pii/S246806722300024X
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