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[Aging and neurodegeneration: molecular and cellular bases].
M A Peinado1, M L del Moral, F J Esteban
1Unidad Asociada CSIC-Universidad de Jaén, Areas de Biología Celular y Bioquímica y Biología Molecular, Departamento de Neuroanatomía Comparada, Madrid, España. apeinado@ujaen.es
Revista De Neurologia
|February 24, 2001
Summary
Aging and neurodegenerative diseases involve cellular and molecular mechanisms, including neuronal loss and glial reactivity. Key factors initiating cell death include lack of neurotrophic factors and free radicals.
Area of Science:
- Neuroscience
- Cellular Biology
- Genetics
Context:
- Aging and neurodegenerative diseases share common cellular and molecular pathways.
- Neuronal loss, connectivity decline, and glial reactivity are hallmarks of both physiological aging and diseases like Alzheimer's.
Purpose:
- To review the cellular and molecular mechanisms underlying aging and neurodegenerative diseases.
- To correlate morphological, histological, and genetic data with cognitive alterations during senescence.
Summary:
- Analysis of neuronal decrease, connectivity loss, and glial reactivity in aging and Alzheimer's disease.
- Correlation of aging mechanisms with genetic aspects, gerontogenes, and cellular death pathways.
- Investigation of intracellular calcium signaling as a trigger for cell death in aging and neurodegeneration.
Impact:
- Provides a morphofunctional basis for understanding cognitive decline in aging.
- Highlights the role of various factors like hypoxia, excitotoxicity, and free radicals in neuronal cell death.
- Integrates cellular, biochemical, and genetic data to elucidate aging and neurodegeneration.