The Citrus flavanone naringenin prolongs the lifespan in C. elegans and slows signs of brain aging in mice.
Exp Gerontol
; 194: 112495, 2024 Sep.
Article
en En
| MEDLINE
| ID: mdl-38897393
ABSTRACT
Aging is one of the main risk factors for neurodegenerative disorders, which represent a global burden on healthcare systems. Therefore, identifying new strategies to slow the progression of brain aging is a compelling challenge. In this article, we first assessed the potential anti-aging effects of the Citrus flavanone naringenin (NAR), an activator of the enzyme sirtuin-1 (SIRT1), in a 3R-compliant and short-lived aging model (i.e., the nematode C. elegans). Then, we investigated the preventive effects of a 6-month treatment with NAR (100 mg/kg, orally) against brain aging and studied its mechanism of action in middle-aged mice. We demonstrated that NAR (100 µM) extends lifespan and improves healthspan in C. elegans. In the brain of middle-aged mice, NAR promotes the activity of metabolic enzymes (citrate synthase, cytochrome C oxidase) and increases the expression of the SIRT1 enzyme. Consistently, NAR up-regulates the expression of downstream antioxidant (Foxo3, Nrf2, Ho-1), anti-senescence (p16), and anti-inflammatory (Il-6, Il-18) markers. Our findings support NAR supplementation to slow the signs of brain aging.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Encéfalo
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Envejecimiento
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Citrus
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Caenorhabditis elegans
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Flavanonas
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Sirtuina 1
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Longevidad
Límite:
Animals
Idioma:
En
Revista:
Exp Gerontol
Año:
2024
Tipo del documento:
Article
Pais de publicación:
Reino Unido