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Genetic polymorphisms in older subjects with vascular or Alzheimer's dementia

By G. ZULIANI, BLE' A, ZANCA R, MUNARI MR, ZURLO A, VAVALLE C, ATTI AR and FELLIN R

Abstract

OBJECTIVES: Paraoxonase, angiotensin-converting enzyme (ACE), methylenetetrahydrofolate reductase (MTHFR), and apo E gene polymorphisms were evaluated in older patients with vascular dementia (VD) or late-onset Alzheimer's disease (LOAD). MATERIAL AND METHODS: Sixty patients with VD, 45 patients with LOAD, and 54 non-demented controls were compared. RESULTS: No differences in the distribution of paraoxonase, ACE, and MTHFR polymorphisms were found. The overall frequency of apo E epsilon4 allele was "low"; epsilon4 allele was more frequent in LOAD (17.5%) and VD (13.3%) compared with controls (9.2%), but the difference was not statistically significant. CONCLUSION: Paraoxonase, ACE, and MTHFR polymorphisms were not associated with VD or LOAD; these common polymorphisms might have a marginal role in the pathogenesis of dementia in older subjects. In spite of a "low" frequency of the apo E epsilon4 allele in our sample, the frequency of epsilon4 allele was about double in LOAD compared with controls

Topics: DEMENTIA, POLYMORPHISM, ACE, MTHFR, APO E, PARAOXONASE
Publisher: Blackwell Munksgaard:PO Box 2148, Periodicals Department, DK-1016 Copenhagen K Denmark:011 45 33 755913, EMAIL: agentservices@oxon.blackwellpublishing.com, INTERNET: http://www.blackwellmunksgaard.com, Fax: 011 45 77 333377
Year: 2001
OAI identifier: oai:iris.unife.it:11392/471723
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