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Flavonoids from Lycium barbarum Leaves Exhibit Anti-Aging Effects through the Redox-Modulation
Yinhong Niu1,2, Jiale Liao1, Haitao Zhou2,3
1School of Food & Wine, Ningxia University, Yinchuan 750021, China.
Lycium barbarum leaf flavonoids (LBLF) demonstrate anti-aging properties by reducing cellular damage and extending lifespan in model organisms. These effects are linked to redox modulation and activation of specific cellular pathways.
Area of Science:
- Nutritional Science
- Gerontology
- Biochemistry
Background:
- Lycium barbarum leaves are recognized for their nutritional value and potential anti-aging functions.
- Modern research seeks to understand the molecular mechanisms behind these observed anti-aging effects.
Purpose of the Study:
- To investigate the anti-aging effects of Lycium barbarum leaf flavonoid (LBLF) extracts.
- To elucidate the underlying molecular mechanisms of LBLF's anti-aging action.
Main Methods:
- LBLF extraction and purification using D101 and polyamide resin.
- Characterization of LBLF using ultra-performance liquid chromatography coupled with mass spectrometry.
- In vitro studies on hydrogen peroxide (H2O2)-treated human umbilical vein endothelial cells (HUVECs) and in vivo studies on Caenorhabditis elegans.
Main Results:
- LBLF attenuated H2O2-induced HUVEC apoptosis, reduced reactive oxygen species and malondialdehyde, and increased antioxidant enzyme activities (SOD, GPx, CAT).
- LBLF upregulated erythropoietin (EPO) and heme oxygenase-1 (HO-1) mRNA expression via the MAPK signaling pathway in HUVECs.
- LBLF prolonged lifespan and enhanced mobility in C. elegans, upregulating sod-2, gcs-1, and skn-1 genes.
Conclusions:
- Lycium barbarum leaf flavonoids possess significant anti-aging effects.
- The anti-aging properties of LBLF are attributed to its redox-modulating capabilities.
- LBLF represents a promising natural compound for anti-aging interventions.
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