Frailty in mouse ageing: A conceptual approach

Area of Science:

• Gerontology and aging research.
• Translational medicine and disease modeling.

Background:

• Increased human life expectancy has led to a rise in age-related diseases, including frailty.
• Frailty, characterized by organ dysfunction and vulnerability, is a predictor of health outcomes and mortality.
• Assessing frailty is relatively straightforward in humans.

Purpose of the Study:

• To review the current state of frailty scales reverse-translated into mice.
• To identify knowledge gaps regarding the validity, reproducibility, and reliability of these mouse models.
• To highlight potential areas for improving frailty research in animal models.

Main Methods:

• Review of existing literature on frailty scales in mice.
• Analysis of the validity, reproducibility, and reliability of current mouse models.
• Identification of limitations and future research directions.

Main Results:

• Frailty scales have been adapted for use in mice to study aging.
• The validity, reproducibility, and reliability of these mouse models require further investigation.
• There is a need for standardized and improved methods for assessing frailty in mice.

Conclusions:

• Reverse translation of frailty scales into mice is a developing field.
• Further research is needed to establish robust and reliable mouse models of frailty.
• Improved mouse models are crucial for understanding aging mechanisms and developing interventions to extend healthy lifespan.