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[Homocysteine and dementia].

H Kessler1, S Bleich, P Falkai

  • 1Universitäts-Nervenklinik und Poliklinik, Psychiatrie und Psychotherapie, Homburg/Saar. nehkes@uniklinik-saarland.de

Fortschritte Der Neurologie-Psychiatrie
|March 8, 2003
PubMed
Summary

High homocysteine levels are linked to cognitive decline and vascular issues. Lowering homocysteine through vitamin supplementation may reduce the risk and progression of cognitive disorders.

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Area of Science:

  • Neurology
  • Vascular Biology
  • Nutritional Science

Context:

  • Homocysteine is recognized as a significant vascular risk factor.
  • Associations between hyperhomocysteinemia and cognitive disorders like dementia are increasingly evident.
  • Potential mechanisms include direct neurotoxicity and indirect effects related to vitamin deficiencies.

Purpose:

  • To explore the link between homocysteine and cognitive impairment.
  • To investigate the role of homocysteine in cerebrovascular diseases.
  • To evaluate the potential of vitamin supplementation in managing cognitive decline.

Summary:

  • Elevated homocysteine levels are associated with cerebral macroangiopathy and microangiopathy.
  • Hyperhomocysteinemia may contribute to cognitive disorders, including vascular dementia and Alzheimer's disease.

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  • This condition could indicate deficiencies in vitamins B12, B6, or folate, or a direct neurotoxic effect of homocysteine.

    • Impact:

    • Homocysteine is a modifiable risk factor for cognitive impairment.
    • Early identification and intervention strategies targeting homocysteine are crucial.
    • Further research through intervention studies is warranted to confirm the efficacy of vitamin supplementation in preventing cognitive decline.