title: Murine Depression Model and its Potential Applications for Discovering Foods and Farm Products with Antidepressant-Like Effects.
abstract: Advanced societies face increased health problems related to various stresses. Chronic psychological stress is a major risk factor for psychiatric disorders such as depression. Although therapeutic agents reduce several symptoms of depression, most have side effects in a broad range of the population. Furthermore, some victims of depression do not show significant improvement with any drugs, so alternative approaches are needed. Good dietary habits may potentially reduce depressive symptoms, but there is little scientific evidence thus far. Murine depression models are useful to test nutritional approaches in vivo. Our model mice subjected to a subchronic mild social defeat stress (sCSDS) paradigm show several alterations in physiological parameters and social behavior. These stress-induced symptoms in sCSDS mice can be used as cues to identify antidepressant-like natural resources including foods and farm products. We previously discovered that sCSDS mice show more vulnerability to social stress by changing dietary condition. In addition, we developed a more objective system for analyzing mouse behavior using a 3D depth-sensing camera to understand relationships between diet and behavior. The combination of sCSDS mice with 3D behavioral analysis is a powerful method for screening ingredients in foods and farm products for antidepressant-like effects.
authors.affiliation: Department of Biological Production Science, College of Agriculture, Ibaraki UniversityAmi, Ibaraki, Japan; Department of Biological Production Science, Ibaraki University Cooperation between Agriculture and Medical ScienceAmi, Ibaraki, Japan.
authors.forename: Tatsuhiko
authors.initials: T
authors.lastname: Goto
authors.affiliation: Graduate School of Agriculture, Kyoto University Kyoto, Japan.
authors.forename: Shozo
authors.initials: S
authors.lastname: Tomonaga
authors.affiliation: Department of Biological Production Science, College of Agriculture, Ibaraki UniversityAmi, Ibaraki, Japan; Department of Biological Production Science, Ibaraki University Cooperation between Agriculture and Medical ScienceAmi, Ibaraki, Japan; Department of Biological Production Science, United Graduate School of Agricultural Science, Tokyo University of Agriculture and TechnologyFuchu, Japan.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Okayama
authors.affiliation: Department of Biological Production Science, College of Agriculture, Ibaraki UniversityAmi, Ibaraki, Japan; Department of Biological Production Science, Ibaraki University Cooperation between Agriculture and Medical ScienceAmi, Ibaraki, Japan; Department of Biological Production Science, United Graduate School of Agricultural Science, Tokyo University of Agriculture and TechnologyFuchu, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Toyoda
keywords: behavior; depression; depth camera; food; metabolomics; social defeat stress