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Memory deficits in aging and neurological diseases
Zafar U Khan1, Elisa Martín-Montañez2, Irene Navarro-Lobato1
1Laboratory of Neurobiology at CIMES, University of Málaga, Málaga, Spain; Department of Medicine at Faculty of Medicine, University of Málaga, Málaga, Spain.
Progress in Molecular Biology and Translational Science
|February 4, 2014
Summary
Normal aging and neurodegenerative diseases like Alzheimer's disease impair memory. This review covers aging effects, Alzheimer's pathology, and schizophrenia's circuit and neurotransmitter abnormalities impacting memory.
Area of Science:
- Neuroscience
- Gerontology
- Pathology
Background:
- Memory is crucial for daily functioning and societal participation.
- Increased lifespan due to medical advances highlights age-related memory decline as a significant health concern.
- Memory loss is linked to normal aging, neurodegenerative diseases (e.g., Alzheimer's), and psychiatric/neurological disorders.
Purpose of the Study:
- To review the impact of normal aging on memory and its underlying mechanisms.
- To examine the pathological mechanisms contributing to dementia in Alzheimer's disease.
- To explore circuit function and neurotransmitter system abnormalities in schizophrenia-related memory impairment.
Main Methods:
- Literature review and synthesis of current research on memory function and impairment.
- Analysis of studies on normal aging, Alzheimer's disease, and schizophrenia.
- Focus on mechanisms at molecular, circuit, and systems levels.
Main Results:
- Normal aging affects memory through specific, yet not fully understood, mechanisms.
- Alzheimer's disease involves distinct pathological processes leading to dementia.
- Schizophrenia is characterized by abnormalities in neural circuits and neurotransmitter systems impacting memory.
Conclusions:
- Understanding age-related memory decline is critical for public health.
- Differentiating normal aging from pathological memory loss (e.g., Alzheimer's) is essential for effective intervention.
- Investigating circuit and neurotransmitter dysfunctions in schizophrenia offers insights into memory disorders.
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