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2013-10-01

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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/49963

Dietary resveratrol prevents alzheimer's markers and increases life span in SAMP8

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http://dx.doi.org/10.1007/s11357-012-9489-4

Resum

Resveratrol is a polyphenol that is mainly found in grapes and red wine and has been reported to be a caloric restriction (CR) mimetic driven by Sirtuin 1 (SIRT1) activation. Resveratrol increases metabolic rate, insulin sensitivity, mitochondrial biogenesis and physical endurance, and reduces fat accumulation in mice. In addition, resveratrol may be a powerful agent to prevent age-associated neurodegeneration and to improve cognitive deficits in Alzheimer's disease (AD). Moreover, different findings support the view that longevity in mice could be promoted by CR. In this study, we examined the role of dietary resveratrol in SAMP8 mice, a model of age-related AD. We found that resveratrol supplements increased mean life expectancy and maximal life span in SAMP8 and in their control, the related strain SAMR1. In addition, we examined the resveratrol-mediated neuroprotective effects on several specific hallmarks of AD. We found that long-term dietary resveratrol activates AMPK pathways and pro-survival routes such as SIRT1 in vivo. It also reduces cognitive impairment and has a neuroprotective role, decreasing the amyloid burden and reducing tau hyperphosphorylation.

Matèries

Envelliment, Malalties neurodegeneratives, Malaltia d'Alzheimer, Polifenols, Proteïnes, Ratolins (Animals de laboratori)

Matèries (anglès)

Aging, Neurodegenerative Diseases, Alzheimer's disease, Polyphenols, Proteins, Mice (Laboratory animals)

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Articles publicats en revistes (Bioquímica i Fisiologia)
Articles publicats en revistes (Farmacologia, Toxicologia i Química Terapèutica)

Citació

PORQUET COSTA, David, CASADESÚS, Gemma, BAYOD GIMENO, Sergi, VICENTE, Alberto, CANUDAS TEIXIDÓ, Anna-maria, VILAPLANA I HORTENSI, Jordi, PELEGRÍ I GABALDÀ, Carme, SANFELIU I PUJOL, Coral, CAMINS ESPUNY, Antoni, PALLÀS I LLIBERÍA, Mercè, VALLE I MACIÀ, Jaume del. Dietary resveratrol prevents alzheimer's markers and increases life span in SAMP8. _AGE_. 2013. Vol. 35, núm. 5, pàgs. 1851-1865. [consulta: 24 de gener de 2026]. ISSN: 0161-9152. [Disponible a: https://hdl.handle.net/2445/49963]

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