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Spermidine in dementia : Relation to age and memory performance.

Thomas Pekar1, Aribert Wendzel2, Walter Flak3

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Higher spermidine levels correlate with better cognitive function in older adults. This suggests spermidine may serve as a biomarker for neurocognitive disorders like Alzheimer's disease.

Keywords:
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Area of Science:

  • Neuroscience
  • Biochemistry
  • Gerontology

Background:

  • Spermidine is known to promote autophagy, a process involved in clearing amyloid-beta plaques.
  • Neurocognitive decline, including senile dementia and Alzheimer's disease, is a significant concern in aging populations.

Purpose of the Study:

  • To investigate the correlation between serum spermidine levels, age, and cognitive performance in elderly individuals.
  • To establish a foundation for future studies on spermidine supplementation for memory enhancement.

Main Methods:

  • Memory performance was assessed using the Mini-Mental State Examination (MMSE) in 80 participants aged 60-96.
  • Serum spermidine concentrations were measured in blood samples.
  • Data were collected from participants residing in six nursing homes in Styria.

Main Results:

  • A significant positive correlation was observed between serum spermidine concentration and MMSE scores (p=0.025).
  • This indicates that higher spermidine levels are associated with better cognitive function.

Conclusions:

  • Serum spermidine may function as a potential biomarker for diagnosing neurocognitive changes, such as senile dementia and Alzheimer's disease.
  • The findings support further research into spermidine's role in cognitive health and its therapeutic potential.