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The Use of Trace Eyeblink Classical Conditioning to Assess Hippocampal Dysfunction in a Rat Model of Fetal Alcohol Spectrum Disorders
Published on: August 5, 2017
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Alcohol impairs hippocampal function: From NMDA receptor synaptic transmission to mitochondrial function.
Rodrigo G Mira1, Cheril Tapia-Rojas2, María Jose Pérez2
1Laboratorio de Función y Patología Neuronal, Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile; Centro de Investigación y Estudio del Consumo de Alcohol en Adolescentes (CIAA), Santiago, Chile.
Drug and Alcohol Dependence
|November 5, 2019
Summary
Alcohol damages the brain, particularly the hippocampus, impairing learning and memory. Mitochondrial dysfunction is a key factor in alcohol-induced cognitive decline and neurodegeneration.
Area of Science:
- Neuroscience
- Toxicology
- Cell Biology
Background:
- Alcohol consumption negatively impacts brain structures, notably the hippocampus, crucial for memory and learning.
- Recurrent alcohol use is linked to cognitive deficits, with hippocampal dysfunction playing a significant role.
Purpose of the Study:
- To review the mechanisms by which alcohol affects neuronal communication.
- To highlight the role of mitochondrial dysfunction in alcohol-induced cognitive and memory decline.
Main Methods:
- Review of existing literature on alcohol's effects on the brain.
- Analysis of studies investigating mitochondrial function, glutamate receptor activity, neuroinflammation, and oxidative stress.
Main Results:
- Alcohol exposure impairs glutamate receptor (NMDAR) activity, promotes neuroinflammation, and causes oxidative damage.
- Mitochondrial dysfunction is identified as a central mediator of these alcohol-induced neuronal impairments.
Conclusions:
- Mitochondrial dysfunction is a primary mechanism underlying alcohol's detrimental effects on cognitive and memory functions.
- Alcohol-induced neurodegeneration is closely associated with impaired mitochondrial function in the brain.
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