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Ibaraki University

3 ARTICLES PUBLISHED IN JoVE

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Behavior

A Mouse Model of Subchronic and Mild Social Defeat Stress for Understanding Stress-induced Behavioral and Physiological Deficits
Tatsuhiko Goto 1,2, Atsushi Toyoda 1,2,3
1College of Agriculture, Ibaraki University, 2Cooperation between Agriculture and Medical Science, Ibaraki University, 3United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology

Here, methods for developing a mouse model of subchronic and mild social defeat stress are described and used to investigate the pathogenic features of depression including hyperphagia- and polydipsia-like symptoms following increased body weight.

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Behavior

Measuring Active and Passive Tameness Separately in Mice
Hiromichi Nagayama 1,2, Yuki Matsumoto 1,2, Akira Tanave 1, Motoko Nihei 1, Tatsuhiko Goto 3, Tsuyoshi Koide 1,2
1Mouse Genomics Resource Laboratory, National Institute of Genetics, 2Department of Genetics, SOKENDAI (The Graduate University for Advanced Studies), 3Research Center for Global Agromedicine, Obihiro University of Agriculture and Veterinary Medicine

Tameness in animals includes a reduction of avoidance responses to humans (passive tameness) and an increase in active approaches to humans (active tameness). Here, we describe detailed protocols for three behavioral tests (active tameness, passive tameness, and stay-on-hand tests) to separately measure the active and passive tameness of mice.

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Environment

Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
Hiroshi Muraishi 1, Ryoji Enomoto 2, Hideaki Katagiri 3, Mika Kagaya 4, Takara Watanabe 5, Naofumi Narita 3, Daisuke Kano 5
1School of Allied Health Sciences, Kitasato University, 2Institute for Cosmic Ray Research, University of Tokyo, 3College of Science, Ibaraki University, 4National Institute of Technology, Sendai College, 5National Cancer Center Hospital East

We present experimental protocols for visualizing various low-level gamma radiation sources in the ambient environment using a low-cost, high-sensitivity, omnidirectional, gamma-ray imaging Compton camera.

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