ArticleBMC complementary medicine and therapies2024
Astragalus polysaccharides attenuate rat aortic endothelial senescence via regulation of the SIRT-1/p53 signaling pathway.
Article in BMC complementary medicine and therapies, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 11 citations in OpenAlex.
- The Protective Effect of Astragalus Polysaccharides Against Cisplatin‑Induced Pulmonary Epithelial Cell Injury: An Integrated Network Toxicology and In Vitro Validation.Cell biochemistry and biophysics · 2026Article
- Review
- Research Progress on Chemical Components ofMolecules (Basel, Switzerland) · 2025Review
- Article
- Impact of plant-derived antioxidants on heart aging: a mechanistic outlook.Frontiers in pharmacology · 2025Review
- Nutraceuticals as Modulators of Molecular Placental Pathways: Their Potential to Prevent and Support the Treatment of Preeclampsia.International journal of molecular sciences · 2024Review
- Oxidative stress and senescence in aging kidneys: the protective role of SIRT1.EXCLI journal · 2024Review
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Authors and funding
13 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundAstragalus polysaccharides (APS) have been verified to have antioxidative and antiaging activities in the mouse liver and brain. However, the effect of APS on aortic endothelial senescence in old rats and its underlying mechanism are currently unclear. Here, we aimed to elucidate the effects of APS on rat aortic endothelial oxidative stress and senescence in vitro and in vivo and investigate the potential molecular targets.
methodsTwenty-month-old natural aging male rats were treated with APS (200 mg/kg, 400 mg/kg, 800 mg/kg daily) for 3 months. Serum parameters were tested using corresponding assay kits. Aortic morphology was observed by staining with hematoxylin and eosin (H&E) and Verhoeff Van Gieson (VVG). Aging-related protein levels were evaluated using immunofluorescence and western blot analysis. Primary rat aortic endothelial cells (RAECs) were isolated by tissue explant method. RAEC mitochondrial function was evaluated by the mitochondrial membrane potential (MMP) measured with the fluorescent lipophilic cationic dye JC‑1. Intracellular total antioxidant capacity (T-AOC) was detected by a commercial kit. Cellular senescence was assessed using senescence-associated-β-galactosidase (SA-β-Gal) staining.
resultsTreatment of APS for three months was found to lessen aortic wall thickness, renovate vascular elastic tissue, improve vascular endothelial function, and reduce oxidative stress levels in 20-month-old rats. Primary mechanism analysis showed that APS treatment enhanced Sirtuin 1 (SIRT-1) protein expression and decreased the levels of the aging marker proteins p53, p21 and p16 in rat aortic tissue. Furthermore, APS abated hydrogen peroxide (H
conclusionAPS may reduce rat aortic endothelial oxidative stress and senescence via the SIRT-1/p53 signaling pathway.
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