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Abstract Title:

Astaxanthin supplementation modulates cognitive function and synaptic plasticity in young and aged mice.

Abstract Source:

Geroscience. 2019 Feb 9. Epub 2019 Feb 9. PMID: 30739297

Abstract Author(s):

Bethany Grimmig, Charles Hudson, Lauren Moss, Melinda Peters, Meena Subbarayan, Edwin J Weeber, Paula C Bickford

Article Affiliation:

Bethany Grimmig

Abstract:

The incidence of neurodegenerative disorders and cognitive impairment is increasing. Rising prevalence of age-related medical conditions is associated with a dramatic economic burden; therefore, developing strategies to manage these health concerns is of great public health interest. Nutritionally based interventions have shown promise in treatment of these age-associated conditions. Astaxanthin is a carotenoid with reputed neuroprotective properties in the context of disease and injury, while emerging evidence suggests that astaxanthin may also have additional biological activities relating to neurogenesis and synaptic plasticity. Here, we investigate the potential for astaxanthin to modulate cognitive function and neural plasticity in young and aged mice. We show that feeding astaxanthin to aged mice for 1 month improves performance on several hippocampal-dependent cognitive tasks and increases long-term potentiation. However, we did not observe an alteration in neurogenesis, nor did we observe a change in microglial-associated IBA1 immunostaining. This demonstrates the potential for astaxanthin tomodulate neural plasticity and cognitive function in aging.

Study Type : Animal Study

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