Listen to a blog summary of a research paper published by Aging (Aging-US)in Volume 11, Issue 17, entitled, "Conclusions from a behavioral aging study on male and female F2 hybrid mice on age-related behavior, buoyancy in water-based tests, and an ethical method to assess lifespan."

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Mice are frequently used as research models in aging studies. In 2019, researchers from the University of Gothenburg, R&D AstraZeneca, Harvard Medical School, and Karolinska Institutet identified logistical and ethical issues with the standard system of handling murine models in aging studies. Historically, researchers have favored using male mouse models instead of females, especially in pharmaceutical drug discovery and testing. However, half of the human population is female, and thus, females are half of the recipients of pharmaceuticals on the market. There is a need to fill this gap in research by emphasizing the assessment of both male and female subjects in research studies. The second logistical problem is the use of inbred mice. Inbred mice in the laboratory tend to have strain-specific behaviors that can skew study results. Therefore, there is a need to replace inbred mice with hybrid mice, especially in behavioral aging studies.

Lastly, the researchers addressed lifespan assessment in mice. Due to ethical concerns, many institutions do not allow researchers to study lifespan in mice. These concerns arose from researchers allowing mice to pass away naturally, even if some mice are terminally ill and suffering. In a research paper published by Aging (Aging-US) in 2019, the researchers came up with a novel method of ethically assessing lifespan. They also employed male and female F2 hybrid mice in a behavioral aging study. Their paper was entitled, “Conclusions from a behavioral aging study on male and female F2 hybrid mice on age-related behavior, buoyancy in water-based tests, and an ethical method to assess lifespan.”

Full blog - https://aging-us.org/2022/03/behavioral-aging-study-and-ethical-lifespan-assessment-of-hybrid-mice/

Paper DOI - https://doi.org/10.18632/aging.102242

Corresponding Author - Malin Hernebring - [email protected]

Sign up for free Altmetric alerts about this article - https://oncotarget.altmetric.com/details/email_updates?id=10.18632%2Foncotarget.102242

Press release - https://www.aging-us.com/news_room/conclusions-from-a-behavioral-aging-study-on-male-and-female-f2-hybrid-mice-on-age-related-behavior-buoyancy-in-water-based-tests-and-an-ethical-method-to-assess-lifespan

Keywords - F2 hybrid mice, aging, sex comparison, exploratory activity, water-based behavioral tests

About Aging-US

Launched in 2009, Aging-US publishes papers of general interest and biological significance in all fields of aging research and age-related diseases, including cancer—and now, with a special focus on COVID-19 vulnerability as an age-dependent syndrome. Topics in Aging-US go beyond traditional gerontology, including, but not limited to, cellular and molecular biology, human age-related diseases, pathology in model organisms, signal transduction pathways (e.g., p53, sirtuins, and PI-3K/AKT/mTOR, among others), and approaches to modulating these signaling pathways.

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