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Reparative processes in aged brain.

G Calderini1, F Bellini, A Consolazione

  • 1Fidia Neurobiological Research Laboratories, Abano Terme, Italy.

Gerontology
|January 1, 1987
PubMed
Summary
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Aging reduces neurotrophic activity and neuroplasticity in rats. However, long-term phosphatidylserine treatment may help maintain neuronal structure integrity in the aging brain.

Area of Science:

  • Neuroscience
  • Aging Research
  • Neurobiology

Background:

  • Endogenous neurotrophic factors are crucial for brain health, particularly in aging and neurodegenerative diseases.
  • Reduced neurotrophic activity and impaired neuroplasticity are observed in aged individuals.
  • The aging brain's capacity for recovery and adaptation is a key area of research.

Purpose of the Study:

  • To investigate age-dependent changes in neurotrophic activity and neuroplasticity in rats.
  • To evaluate the potential of pharmacological interventions, specifically phosphatidylserine, in mitigating age-related neuronal decline.
  • To explore the mechanisms by which phosphatidylserine may preserve neuronal integrity.

Main Methods:

  • Partial lesioning of nigro-striatal pathways in young and aged rats.

Related Experiment Videos

  • In vitro assays of neurotrophic activity on cultured mesencephalic neurons.
  • Monitoring of striatal tyrosine hydroxylase activity for assessing recovery post-lesion.
  • Long-term administration of phosphatidylserine to aged rats.

    • Main Results:

    • Aged rats exhibited lower in vitro neurotrophic activity compared to young rats.
    • A significant age-dependent delay in the spontaneous recovery of striatal tyrosine hydroxylase activity was observed.
    • Long-term phosphatidylserine treatment demonstrated a capacity to maintain neuronal structure integrity in aged rats.

    Conclusions:

    • Aged rats display reduced neurotrophic support and impaired neuroplasticity.
    • The aging brain remains responsive to pharmacological interventions like phosphatidylserine.
    • Phosphatidylserine shows promise in preserving neuronal integrity against age-related damage.