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Alzheimer's disease revisited.

P E Newman1

  • 1Paris, France.

Medical Hypotheses
|June 22, 2000
PubMed
Summary

Essential fatty acid deficiency may contribute to Alzheimer's disease (AD) and Parkinson's disease. This deficiency might also allow aluminum into the brain, a potential factor in AD pathogenesis.

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Area of Science:

  • Neuroscience
  • Biochemistry
  • Epidemiology

Background:

  • Previous research suggested a link between essential fatty acid deficiency and sporadic Alzheimer's disease (AD).
  • A recent study on dementia within the Rotterdam Study population supports this hypothesis.
  • Aluminum is increasingly implicated as a potential pathogenic factor in AD.

Purpose of the Study:

  • To explore the potential role of essential fatty acid deficiency in the etiology of sporadic Alzheimer's disease.
  • To investigate the hypothesis that essential fatty acid deficiency may facilitate aluminum entry into the brain.
  • To consider the contribution of hypomethylation, potentially due to S-adenosylmethionine deficiency, to neurodegenerative diseases.

Main Methods:

  • Review of existing literature and previous research findings.
  • Analysis of data from the Rotterdam Study concerning dementia and related factors.
  • Hypothetical modeling of biochemical pathways involving essential fatty acids, aluminum, and methylation.

Main Results:

  • The Rotterdam Study data reinforce the suggestion that essential fatty acid deficiency may be implicated in Alzheimer's disease etiology.
  • It is hypothesized that this deficiency could enhance the brain's uptake of aluminum.
  • A deficiency in S-adenosylmethionine, leading to hypomethylation, is also proposed as a potential etiological factor for Alzheimer's and Parkinson's diseases.

Conclusions:

  • Essential fatty acid deficiency is a plausible contributing factor to sporadic Alzheimer's disease.
  • This deficiency may play a role in facilitating aluminum's passage into the brain.
  • Hypomethylation, linked to S-adenosylmethionine levels, warrants further investigation in neurodegenerative disease pathogenesis.

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