Related Experiment Videos
Oxidative alterations in Alzheimer's disease
1Sanders-Brown Center on Aging and Alzheimer's Disease Research Center, Department of Pathology, University of Kentucky Medical Center, Lexington, USA. wmarkesbery@aging.coa.uky.edu
Brain Pathology (Zurich, Switzerland)
|February 16, 1999
Summary
Oxidative stress and inflammation contribute to neurodegeneration in Alzheimer's disease (AD). Therapeutic strategies targeting both oxidative damage and inflammation may offer benefits for AD patients.
Area of Science:
- Neuroscience
- Biochemistry
- Pathology
Background:
- Neurodegenerative disorders, particularly Alzheimer's disease (AD), are increasingly linked to free radical damage.
- Oxidative stress is a significant factor in the pathogenesis of neuron degeneration in AD.
Purpose of the Study:
- To review the evidence linking oxidative stress and inflammation to neurodegeneration in Alzheimer's disease.
- To explore potential therapeutic targets for AD based on these mechanisms.
Main Methods:
- Analysis of autopsied brain tissue for markers of oxidative damage (lipid peroxidation, protein oxidation, DNA oxidation).
- Examination of cerebrospinal fluid (CSF) for oxidative stress and inflammatory markers.
- Review of immunohistochemical and epidemiological studies related to AD pathogenesis.
Main Results:
- Increased lipid peroxidation, 4-hydroxynonenal (HNE), and decreased polyunsaturated fatty acids (PUFA) in AD brains.
- Elevated protein and DNA oxidation markers (e.g., 8-hydroxy-2'-deoxyguanosine [8-OHdG]) in AD brains and CSF.
- Presence of inflammatory markers and evidence that anti-inflammatory agents may slow AD progression.
Conclusions:
- Oxidative stress and inflammation are key players in the neurodegenerative cascade of Alzheimer's disease.
- Combined therapeutic approaches targeting both oxidative stress and inflammation may be beneficial for AD treatment.