The companion dog as a unique translational model for aging.
Level 5 - mechanism / opinion, no new human data
Narrative review of animal and translational models with no original data or systematic synthesis.
PubMed 28803893 · doi:10.1016/j.semcdb.2017.08.024
What was done
This narrative review summarizes the biological and environmental rationale for using companion dogs as translational models in geroscience. It discusses canine genetic architecture, shared environmental and dietary exposures with humans, spontaneous age-related conditions including Alzheimer-like disease, the relationship between body size and insulin-like growth factor-1 (IGF-1) on lifespan, and preliminary testing of interventions such as dietary restriction, immunotherapy, and rapamycin in companion dogs.
What was found
The abstract reports no primary quantitative data, sample sizes, or effect estimates. It qualitatively outlines the translational utility of dogs based on shared selective pressures, natural disease susceptibility, and recent community-based geroscience trials testing rapamycin.
Why it matters
Studying companion dogs allows researchers to evaluate anti-aging interventions in an organism that shares the complex human living environment and spontaneously develops similar age-associated pathologies, potentially improving translational success from laboratory models to humans.
Limits
As a narrative review, this paper introduces no new empirical data. The abstract provides no quantitative synthesis, comparative effect sizes, or detailed evaluation of species-specific physiological differences that might limit canine-to-human translation.
Cited by
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