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Abbiategrasso Brain Bank Protocol for Collecting, Processing and Characterizing Aging Brains
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Biology of aging brain
1Department of Neuropathology, National Institute of Mental Health and Neurosciences, Bangalore - 560 029, Karnataka, India. shankarsk2004@gmail.com
Indian Journal of Pathology & Microbiology
|November 4, 2010
Summary
Normal aging affects cognitive functions due to neuronal changes. The mitochondria, reactive oxygen species, and calcium homeostasis triad is key to understanding neuronal aging and neurodegeneration.
Area of Science:
- Neuroscience
- Gerontology
- Cellular Metabolism
Background:
- Normal aging is linked to cognitive decline.
- Neuronal aging involves subtle structural and functional changes, not just neuron loss.
- Understanding neuronal aging mechanisms is crucial for healthspan extension.
Purpose of the Study:
- To review structural, functional, and metabolic features of the aging nervous system.
- To discuss the functional consequences of age-related neuronal changes.
- To highlight the role of the mitochondria-ROS-calcium triad in neuronal aging.
Main Methods:
- Review of experimental evidence on neuronal aging.
- Analysis of metabolic interactions in the aging nervous system.
- Discussion of structural and functional alterations in neurons.
Main Results:
- Neuronal aging involves reduced dendritic and axonal arborization.
- The mitochondria, reactive oxygen species, and intracellular calcium homeostasis triad is implicated in aging.
- Aged neurons have decreased homeostatic reserve, increasing vulnerability to stress.
Conclusions:
- Age-related neuronal dysfunction contributes to cognitive decline.
- Metabolic perturbations in the triad can lead to neurodegeneration.
- Understanding these processes is vital for addressing age-related cognitive dysfunction and dementia.
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