Aged Mice
Aged Mice - Related Videos
14:57
Preparation of Acute Hippocampal Slices from Rats and Transgenic Mice for the Study of Synaptic Alterations during Aging and Amyloid Pathology
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Cited by 62 •
2011
This article outlines procedures for preparing hippocampal slices from rats and transgenic mice for the study of synaptic alterations associated with brain aging and age-related neurodegenerative diseases, such as Alzheimer’s disease.
09:37
A Phenotyping Regimen for Genetically Modified Mice Used to Study Genes Implicated in Human Diseases of Aging
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Cited by 5 •
2016
A reverse-genetics approach to understanding gene families associated with human disease is presented, using mouse as a model system, and the subsequent mouse phenotyping schedule is described. Because mice defective in a gene of interest, HtrA2, manifested Parkinsonian symptoms, the phenotyping regimen is focused on identifying neurological defects.
06:58
Frailty Assessment in an Aging Mouse Model
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2025
The goal of the present protocol is to provide instructions and guidelines for assessing physical frailty in C57Bl/6x129J laboratory mice. Specific details regarding each measure used in the physical frailty index are explained. Several methods for reporting frailty results are also presented.
09:10
Measuring Single-Cell Aging with an Imaging-based Biomarker of Chromatin and Epigenetic Aging
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2026
The protocol presents the imaging and computational workflow to extract and validate imaging-based chromatin and epigenetic age (ImAge).
09:30
Behavioral Assessment of the Aging Mouse Vestibular System
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Cited by 48 •
2014
Motor control and balance performance are known to deteriorate with age. This paper presents a number of standard noninvasive behavioral tests with the addition of a simple rotary stimulus to challenge the vestibular system and show changes in balance performance in a murine model of aging.
FAQs
Age-related changes in aged mice can emerge through interacting cellular and molecular processes that affect neuronal function, synaptic communication, plasticity, inflammation, and behavior. Because these features are linked rather than isolated, a change in learning or memory may reflect altered circuit communication as well as broader brain-state changes. This makes the model useful for studying mechanisms of brain aging.
The age of comparison animals provides an essential reference for interpreting findings in aged mice. Young animals can reveal differences associated with advancing age, while middle-aged animals help show whether a change develops gradually or appears later in life. This design helps separate typical age-related biology from mechanisms more closely associated with neurological disease, improving interpretation of behavioral, neural, and molecular results.
Learning, memory, sensory processing, and vulnerability to neurological disease provide distinct outcome areas for evaluating brain aging. Changes in these measures can show how altered neuronal function and synaptic communication affect behavior, while comparisons across ages help determine whether the pattern reflects normal aging or increased susceptibility to disease. Together, these outcomes connect observable behavior with underlying neuroscience processes.
A typical study begins by selecting aged mice and appropriate younger comparison groups. Researchers may then combine behavioral testing with electrophysiology, imaging, or molecular analyses, depending on whether the question concerns behavior, neural activity, brain structure, or molecular change. Comparing results across groups connects observed behavior with underlying neuroscience measures and helps clarify how aging affects the brain.
These approaches answer different parts of the same research question. Behavioral tests reveal changes in learning, memory, or sensory processing. Electrophysiology examines neuronal function and synaptic communication, whereas imaging and molecular analyses provide complementary information about neural changes and biological processes. Using multiple readouts can relate functional outcomes to cellular and molecular mechanisms in aged mice.
They are particularly valuable when researchers need to distinguish normal aging from disease-related mechanisms or assess potential interventions. Findings from behavioral, electrophysiological, imaging, and molecular studies can indicate how aging affects brain function and vulnerability. This supports neuroscience research on preserving brain health while keeping age-related effects distinct from pathology.