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Related Experiment Videos

Dietary approach to decrease aging-related CNS inflammation.

M H Noyan-Ashraf1, Z Sadeghinejad, B H J Juurlink

  • 1Department of Anatomy and Cell Biology, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, Canada S7N 5E5.

Nutritional Neuroscience
|August 2, 2005
PubMed
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Dietary broccoli sprouts rich in sulforaphane may slow central nervous system (CNS) aging in stroke-prone rats. This intervention reduced key aging markers in the CNS of spontaneously hypertensive rats (SHRsp), suggesting a dietary approach to mitigate age-related neurodegeneration.

Area of Science:

  • Neuroscience
  • Nutritional Science
  • Gerontology

Background:

  • Spontaneously hypertensive rat stroke-prone rats (SHRsp) exhibit premature central nervous system (CNS) aging.
  • Aging markers include activated microglia/macrophages, increased inducible nitric oxide synthase (iNOS), and astrogliosis.
  • Wistar Kyoto rats (WKY) serve as a normotensive control for comparison.

Purpose of the Study:

  • To investigate if dietary intake of phase 2 protein inducers can reduce aging-associated degenerative changes in the SHRsp CNS.
  • To evaluate the efficacy of sulforaphane, derived from broccoli sprouts, in mitigating CNS aging markers.

Main Methods:

  • Utilized dried broccoli sprouts high in glucoraphanin as the source of sulforaphane.
  • Administered a diet containing these broccoli sprouts to SHRsp.

Related Experiment Videos

  • Assessed CNS tissues for markers of aging, including microglial/macrophage activation, iNOS expression, and astrogliosis.

    • Main Results:

    • The diet significantly decreased aging-related degenerative changes in the SHRsp CNS.
    • Specific reductions were observed in activated microglia/macrophages, iNOS expression, and astrogliosis.
    • The intervention demonstrated a protective effect against premature CNS aging in the SHRsp model.

    Conclusions:

    • Dietary sulforaphane, from broccoli sprouts, effectively reduces CNS aging markers in SHRsp.
    • Modest dietary modifications can profoundly impact the aging central nervous system.
    • This suggests a potential nutritional strategy for managing age-related neurodegenerative processes.