The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Increased oxidative stress in Alzheimer's disease as assessed with 4-hydroxynonenal but not malondialdehyde
Abstract
Oxidative stress is thought to play a major role in the pathogenesis of Alzheimer's disease (AD). Although there is strong post-mortem and experimental evidence of oxidative damage occurring in AD brains, the use of markers in the peripheral circulation to show oxidative stress is less convincing. We examined plasma from AD patients for markers of increased oxidative stress. We report elevated levels of 4-hydroxy-nonenal (4-HNE) in AD patients compared to controls (median 20.6, IQR 6.0-25.2 vs. 7.8, 3.3-14.5 micomol/l, respectively; p=0.001) but not malondialdehyde (MDA), and lower levels of ascorbate in AD plasma when compared to age-matched controls (9.9, 6.0-33.7 vs. 24.2, 13.9-48.6 micromol/l; p<0.05). Levels of 4-HNE in AD patients were inversely related to ascorbate (r=-0.337; p=0.07) and Folstein Mini-Mental State Examination (MMSE) (r=-0.474; p=0.015). The concentration of protein sulphydryls, free-radical scavengers, was directly related to the MMSE result (r=0.427; p=0.03). Increased production of 4-HNE indicates increased oxidative stress (lipid peroxidation), which is not evident using the more common marker MDA. This elevation of 4-HNE was related to the degree of cognitive impairment (MMSE).
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Excess brain protein oxidation and enzyme dysfunction in normal aging and in Alzheimer disease.
Smith, C. D., Carney, J. M., Starke-Reed, P. E., Oliver, C. N., Stadtman, E. R., Floyd, R. A., & Markesbery, W. R. (1991) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.88.23.10540 · Cited by 1,296
Oxidative damage to mitochondrial DNA is increased in Alzheimer’s disease
Mecocci, P., MacGarvey, U., & Beal, M. F. (1994) · Annals of Neurology · doi:10.1002/ana.410360510 · Cited by 1,037
Markesbery, W. R., & Lovell, M. A. (1998) · Neurobiology of Aging · doi:10.1016/s0197-4580(98)00009-8 · Cited by 680
Autopsy Samples of Alzheimer's Cortex Show Increased Peroxidation In Vitro
Subbarao, K. V., Richardson, J. S., & Ang, L. C. (1990) · Journal of Neurochemistry · doi:10.1111/j.1471-4159.1990.tb08858.x · Cited by 463
Keller, J. N., Pang, Z., Geddes, J. W., Begley, J. G., Germeyer, A., Waeg, G., & Mattson, M. P. (1997) · Journal of Neurochemistry · doi:10.1046/j.1471-4159.1997.69010273.x · Cited by 439 · cited 1×
“Specifically in AD, 4-HNE has been implicated in mediating the neurotoxic effects of Ab peptide.(33) This theory has been supported by the finding of 4-HNE in association with amyloid deposits in AD.”
Background
Cited by
Oxidative stress and mitochondrial dysfunction in Alzheimer’s disease
Wang, X., Wang, W., Li, L., Perry, G., Lee, H.-G., & Zhu, X. (2014) · Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease · doi:10.1016/j.bbadis.2013.10.015 · Cited by 1,357
Butterfield, D. A., Reed, T., Newman, S. F., & Sultana, R. (2007) · Free Radical Biology and Medicine · doi:10.1016/j.freeradbiomed.2007.05.037 · Cited by 564
Chong, Z. Z., Li, F., & Maiese, K. (2005) · Progress in Neurobiology · doi:10.1016/j.pneurobio.2005.02.004 · Cited by 536
Butterfield, D. A., Swomley, A. M., & Sultana, R. (2013) · Antioxidants & Redox Signaling · doi:10.1089/ars.2012.5027 · Cited by 526
Lipid peroxidation cannot be used as a universal criterion of oxidative stress
Dotan, Y. (2004) · Progress in Lipid Research · doi:10.1016/j.plipres.2003.10.001 · Cited by 434
Metadata
- Authors
- McGrath, L. T.
- Venue
- QJM
- Publisher
- Oxford University Press (OUP)
- Published
- 2001-09-01
- Volume
- 94
- Issue
- 9
- Pages
- 485-490
- ISSN
- 0033-5622 (ISSN-L)
- 1460-2393
- OpenAlex
- W2144586857
- Cited by
- 251
- References
- 5
- FWCI
- 4.42
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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