Abstract
Paraoxonase activity, homocysteine level and lipids were determined in 120 patients
with dementia (51 with Alzheimer disease, 28 with dementia of vascular origin, 41
with mixed dementia), 45 with mild cognitive impairment and in 61 age and sex matched
controls without dementia. Paraoxonase activity was decreased in Alzheimer disease
and in mixed dementia as compared with control group. In the same forms of dementia
homocysteine levels were increased. In Alzheimer disease paraoxonase activity was
negatively correlated with homocysteine levels. Minimental State Examination results
showed positive correlation with paraoxonase activity. The results suggest an important
role of oxidative stress in the development of the forms of dementia with prevailing
neurodegeneration.
Keywords
To read this article in full you will need to make a payment
Purchase one-time access:
Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online accessOne-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to Journal of the Neurological SciencesAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- Review. Human serum paraoxonase.Gen Pharmacol. 1998; 31: 329-336
- Paraoxonases 1, 2 and 3, oxidative stress, and macrophage foam cell formation during atherosclerosis development.Free Radic Biol Med. 2004; 37: 1304-1314
- Effect of lipid removal on the molecular size and kinetic properties of bovine plasma arylesterase.Biochem J. 1973; 135: 93-99
- Effects of 5′ regulatory-region polymorphisms on paraoxonase-gene (PON1) expression.Am J Hum Genet. 2001; 68: 1428-1436
- Oxidative stress increases expression and activity of BACE in NT2 neurons.Neurobiol Dis. 2002; 10: 279-288
- Alzheimer disease: the two-hit hypothesis.The Lancet. 2004; 3: 219-222
- Hyperhomocysteinemia, paraoxonase activity and risk of coronary artery disease.Clin Biochem. 2006; 39: 821-825
- Effect of homocysteinylation on human high density lipoproteins: a correlation with paraoxonase activity.Metabolism. 2003; 53: 146-151
- Altered gene expression in liver from murine model of hyperhomocysteinemia.J Biol Chem. 2003; 278: 31504-31511
Article info
Publication history
Published online: March 06, 2009
Identification
Copyright
© 2009 Elsevier B.V. Published by Elsevier Inc. All rights reserved.