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Relation between plasma homocysteine and Alzheimer's disease.

In English

Författare

  • Karin Nilsson
  • Lars Gustafson
  • Björn Hultberg

Summary, in English

OBJECTIVE: Several studies have shown that plasma total homocysteine (tHcy) concentration is elevated in Alzheimer's disease (AD). However, it is not clear whether elevated plasma tHcy is a primary cause or a consequence of AD. METHOD: To elucidate this question, we have analysed plasma homocysteine and its determinants in patients with early (EOAD)- and late-onset AD (LOAD) and compared the findings with those in vascular dementia (VaD) and age- and sex-matched control subjects. RESULTS: One of the main findings in the present study is that in EOAD there is no change in the levels of either plasma tHcy or its determinants compared with an age- and sex-matched control group. The fact that plasma tHcy concentration is normal in EOAD thus indicates that elevated plasma tHcy is not the primary cause of the disease. Another main finding is that patients with mixed dementia (AD and VaD) and patients with VaD showed significantly increased plasma tHcy concentration compared with controls and that plasma tHCy concentration in patients with LOAD and a history of additional cardiovascular disease was elevated compared both with AD patients without such a history and with the controls. Thus, there is an association between elevated plasma tHcy and vascular disease. A third main finding is that patients with AD who were followed up for several years showed a clinical deterioration of dementia and an elevation of plasma tHcy concentration. This finding likewise supports the notion that elevated plasma tHcy is not the primary cause of the disease. CONCLUSIONS: The findings suggest that elevated plasma tHcy is not the primary cause of the disease. Furthermore, the findings indicate that elevated plasma tHcy might be a reflection of concomitant vascular disease in AD patients.

Publiceringsår

2002

Språk

Engelska

Sidor

41467-41467

Publikation/Tidskrift/Serie

Dementia and Geriatric Cognitive Disorders

Volym

14

Issue

1

Dokumenttyp

Artikel i tidskrift

Förlag

Karger

Ämne

  • Geriatrics
  • Medicinal Chemistry
  • Pharmacology and Toxicology
  • Psychiatry

Nyckelord

  • Homocysteine : blood
  • Female
  • Alzheimer Disease : blood
  • 80 and over
  • Aged
  • Support
  • Non-U.S. Gov't
  • Vascular Diseases : blood
  • Human
  • Male
  • Matched-Pair Analysis

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1420-8008