Mitochondrial Functions in Blood Cells and Their Link to Alzheimer's Disease
Author Information
Author(s): Mahapatra Gargi, Bergstrom Jaclyn, Craft Suzanne, Molina Anthony
Primary Institution: University of California San Diego
Hypothesis
Peripheral blood cell mitochondrial function is associated with cognitive performance and Alzheimer's disease.
Conclusion
Blood cells show lower bioenergetic capacity linked to cognitive decline in individuals with mild cognitive impairment and dementia.
Supporting Evidence
- Blood cell mitochondrial function relates to brain morphology.
- Lower bioenergetic capacity is associated with cognitive decline in mild cognitive impairment and dementia.
- Glucose-mediated respiration was significantly lower in dementia compared to normal cognition.
- PBMC fatty-acid oxidation-mediated respiration decreased with cognitive decline.
- Platelet respiration showed higher maximal respiration in mild cognitive impairment than in dementia.
Takeaway
This study found that the energy production in blood cells is lower in people with memory problems, which might help us understand Alzheimer's disease better.
Methodology
Mitochondrial function was assessed using respirometric approaches in blood cells from older adults with varying cognitive abilities.
Participant Demographics
Older adults with normal cognition, mild cognitive impairment, and dementia due to probable Alzheimer's disease.
Statistical Information
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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