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Gut Microbiome Composition is Associated with Age and Memory Performance in Pet Dogs
Eniko Kubinyi1, Soufiane Bel Rhali1,2, Sára Sándor1
1Department of Ethology, ELTE Eötvös Loránd University, 1117 Budapest, Hungary.
Animals : an Open Access Journal From MDPI
|August 28, 2020
Summary
The gut microbiome influences dog cognition. Lower levels of certain bacteria (Fusobacteria, Actinobacteria) correlated with better memory and younger age in pet dogs, suggesting a link between gut health and cognitive function.
Area of Science:
- Veterinary Medicine
- Microbiology
- Neuroscience
Background:
- The gut microbiome plays a critical role in host behavior and neurodevelopment.
- Dogs share physiological similarities with humans and can experience cognitive decline similar to dementia.
- Understanding the canine gut microbiome is crucial for addressing age-related cognitive changes.
Purpose of the Study:
- To investigate the relationship between the gut microbiota composition and cognitive performance in pet dogs.
- To explore potential links between gut bacteria, age, and memory function in canines.
Main Methods:
- Cognitive performance was assessed in 29 pet dogs using a memory test.
- Fecal samples were collected immediately after behavioral testing.
- Bacterial 16S rRNA gene sequencing was performed to analyze the gut microbiome composition.
Main Results:
- The dominant bacterial phyla in the dog gut microbiome were Bacteroidetes, Firmicutes, and Fusobacteria.
- A lower abundance of Fusobacteria was observed in older dogs.
- Reduced proportions of Actinobacteria were associated with better memory performance.
Conclusions:
- Preliminary findings suggest a connection between gut microbiota, age, and cognitive abilities in pet dogs.
- The gut microbiome may be a potential factor influencing cognitive health and aging in canines.
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