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L-acetylcarnitine attenuates the age-dependent decrease of NMDA-sensitive glutamate receptors in rat hippocampus.

L Fiore, L Rampello

    Acta Neurologica
    |October 1, 1989
    PubMed
    Summary
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    Long-term L-acetylcarnitine administration may protect against age-related decline in NMDA-sensitive glutamate receptors in rat hippocampus, supporting its neuroprotective role.

    Area of Science:

    • Neuroscience
    • Aging Research
    • Neuropharmacology

    Background:

    • NMDA-sensitive glutamate receptors are crucial for neuronal plasticity and learning.
    • Aging leads to decreased NMDA receptor binding sites in the rat hippocampus.
    • This decline may impair cognitive functions associated with aging.

    Purpose of the Study:

    • To investigate the effect of L-acetylcarnitine on age-related changes in NMDA receptor density.
    • To explore the potential neuroprotective and neurotrophic effects of L-acetylcarnitine in aging.

    Main Methods:

    • Long-term administration of L-acetylcarnitine (10 mg/Kg daily for 4 months) to aging rats.
    • Measurement of NMDA-sensitive glutamate binding site density in rat hippocampus.

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    Main Results:

    • A reduction in NMDA-sensitive glutamate binding sites was observed in aging rats.
    • L-acetylcarnitine administration attenuated this age-associated reduction.
    • The effect of L-acetylcarnitine was observed after 4 months of treatment.

    Conclusions:

    • L-acetylcarnitine demonstrates a neuroprotective effect against age-related decline in NMDA receptor density.
    • The findings suggest a neurotrophic role for L-acetylcarnitine in the aging brain.
    • L-acetylcarnitine may be a potential therapeutic agent for age-related cognitive impairment.