A novel methodology utilizing microchip implants to monitor individual activity and body temperature for assessing knee pain in group-housed rats

Bibliographic Details
Title: A novel methodology utilizing microchip implants to monitor individual activity and body temperature for assessing knee pain in group-housed rats
Authors: Shoichi Hasegawa, Riko Yamashita, Yusuke Nakagawa, Kazumasa Miyatake, Hiroki Katagiri, Tomomasa Nakamura, Hideyuki Koga, Ichiro Sekiya, Toshitaka Yoshii, Vicki Rosen, Kunikazu Tsuji
Source: Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Publisher Information: Nature Portfolio, 2024.
Publication Year: 2024
Collection: LCC:Medicine
LCC:Science
Subject Terms: Medicine, Science
More Details: Abstract The pain assessment in animals is challenging as they cannot verbally express the site and severity of pain. In this study, we tried a small implantable actimeter, “Nanotag”, to monitor spontaneous locomotor activity and body temperature in animals suffering from a chemical-induced rat knee arthritis as compared to naïve and steroid-treated rats. Nanotag could detect the decrease in locomotor activity quickly after the arthritis induction and anti-inflammation analgesic treatment by intra-articular injection of steroid significantly improved locomotor activity. These changes were in the same line with those of a conventional knee pain evaluation method (incapacitance test). Nanotag can be utilized as the non-interventional, continuous, and completely objective monitoring the amount of pain in rat knee arthritis model. This traditional yet innovative method may be universally applicable to various pain models and species, making it a worthwhile device for research across diverse fields.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2045-2322
Relation: https://doaj.org/toc/2045-2322
DOI: 10.1038/s41598-024-67024-7
Access URL: https://doaj.org/article/758fbb122a764f359b148216a8848f73
Accession Number: edsdoj.758fbb122a764f359b148216a8848f73
Database: Directory of Open Access Journals
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More Details
ISSN:20452322
DOI:10.1038/s41598-024-67024-7
Published in:Scientific Reports
Language:English