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Related Experiment Videos

Homocysteine, estrogen and cognitive decline.

S Shah1, R J Bell, S R Davis

  • 1Women's Health Program, Department of Medicine, Central and Eastern Clinical School, Monash University, Alfred Hospital, Prahran, Victoria, Australia.

Climacteric : the Journal of the International Menopause Society
|May 16, 2006
PubMed
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High homocysteine levels are linked to cognitive decline in women. Estrogen influences homocysteine, but estrogen therapy doesn't prevent dementia, though it may help early in menopause.

Area of Science:

  • Neuroscience
  • Endocrinology
  • Gerontology

Background:

  • Cognitive decline in midlife women is not well understood.
  • Homocysteine and estrogen may influence cognitive function.
  • The menopause transition impacts homocysteine levels.

Purpose of the Study:

  • To review the relationship between cognitive change and homocysteine levels.
  • To examine the impact of menopause and estrogen on homocysteine.
  • To synthesize current knowledge on homocysteine and cognitive function in women.

Main Methods:

  • Literature review of studies from 1993-2005.
  • Focused on plasma homocysteine, cognitive function, and estrogen.
  • Included endogenous hormone levels and exogenous estrogen use.

Related Experiment Videos

Main Results:

  • Hyperhomocysteinemia is consistently linked to cognitive decline.
  • Estrogen therapy reduces plasma homocysteine, especially in those with high baseline levels.
  • Vitamin supplementation normalizes homocysteine but doesn't improve cognition.

Conclusions:

  • A link exists between homocysteine levels and cognitive decline.
  • Menopause and estrogen therapy affect homocysteine levels.
  • Further trials are needed to explore estrogen's role in preventing cognitive decline in early postmenopause.