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Taurine improves learning and retention in aged mice.
1Department of Biology, The Center for Developmental Neuroscience, College of Staten Island, 2800 Victory Blvd., 6S-316 Staten Island, NY 10314, United States. elidrissi@mail.csi.cuny.edu
Neuroscience Letters
|April 1, 2008
Summary
Chronic taurine supplementation in aged mice improved memory and cognitive function. Taurine counteracts age-related declines in the brain
Area of Science:
- Neuroscience
- Aging Research
- Neurochemistry
Background:
- Brain aging involves neurochemical changes, impacting functions like memory.
- Decreased GABA receptors and GABAergic neurons are linked to age-related cognitive decline.
- GABAergic system deficits may contribute to impaired cognitive functions during aging.
Purpose of the Study:
- To investigate the effect of chronic taurine supplementation on age-dependent memory decline in mice.
- To explore taurine's impact on the GABAergic system in aging brains.
Main Methods:
- A passive avoidance test was used to assess memory acquisition and retention in aged mice.
- Neurochemical analyses were performed to evaluate changes in the GABAergic system following taurine supplementation.
Main Results:
- Taurine supplementation significantly improved memory acquisition and retention in aged mice.
- Taurine increased GABA and glutamate levels, glutamic acid decarboxylase expression, and somatostatin-positive neurons.
- These changes in the GABAergic system oppose natural aging processes.
Conclusions:
- Taurine supplementation ameliorates age-related cognitive decline in mice.
- Taurine exerts a protective effect against normal brain aging by modulating the GABAergic system.
- Understanding these neurochemical changes is crucial for addressing age-related functional decline.
