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Energy metabolism in demented brain
Progress in Neuro-Psychopharmacology & Biological Psychiatry
|January 1, 1986
Summary
Dementia, including Alzheimer's disease, involves brain alterations affecting metabolism. Early changes in brain glucose metabolism correlate with disease severity and specific brain regions.
Area of Science:
- Neuroscience
- Neurology
- Biochemistry
Background:
- Dementia encompasses complex brain disorders with morphological, biochemical, and functional changes.
- Alzheimer's disease (AD) is characterized by specific alterations, including in neurotransmitter substances and brain metabolic rate.
Purpose of the Study:
- To review in vivo observations of altered cerebral glucose metabolic rate, oxygen consumption, and blood flow in demented patients.
- To examine changes in energy metabolism enzymes and their relationship with neurotransmitter alterations in dementia.
Main Methods:
- Review of in vivo studies reporting metabolic changes in demented patients.
- Analysis of reported alterations in cerebral glucose metabolism, oxygen consumption, and blood flow.
- Examination of energy metabolism enzymes and neurotransmitter relationships.
Main Results:
- Metabolic activity changes are among the earliest and most documented modifications in Alzheimer's disease brains.
- These metabolic changes correlate with disease severity and are more pronounced in clinically affected brain areas.
Conclusions:
- Altered brain energy metabolism is a key feature of dementia, particularly Alzheimer's disease.
- Understanding these metabolic shifts is crucial for correlating with disease progression and neurotransmitter changes.