ArticleMolecular neurobiology2026
Fabrication and Characterization of Resveratrol-Loaded Solid Lipid Nanoparticles: Evaluation of Neuroprotective, Neurobehavioral, and Molecular Outcomes.
Article in Molecular neurobiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Neurodegenerative processes involve oxidative stress, inflammation, and disrupted signaling, which contribute to cognitive decline. Resveratrol offers neuroprotection but suffers from poor solubility and bioavailability. Solid lipid nanoparticles (SLNs) can improve solubility, stability, and neural targeting, thereby enhancing efficacy. This study investigates whether SLN/resveratrol treatment modulates neuroprotective targets (HSP70, IL-1β) and antioxidant enzymes (CAT, GPX, SOD) in vitro and whether it improves inactive avoidance memory in an animal model. SLNs were produced by melting tripalmitin and palmitic acid, adding resveratrol, Tween, and butanol, then combining with water and stirring for 1 day. The resulting formulations were characterized using FTIR, electron microscopy, and DLS. Neural stem cells (NSCs) were treated with SLNs, resveratrol, and SLN/resveratrol, and the expression of oxidative stress enzymes, HSP70, and IL-1β was analyzed. In vivo, a passive avoidance memory model was induced in rats via electrical destruction of the nucleus basalis of Meynert. Molecular analysis showed that resveratrol increased HSP70 expression by 3.1-fold and significantly decreased IL-1β levels. SLN treatment had no notable effect on these genes, but the SLN/resveratrol increased HSP70 expression by fourfold and significantly reduced IL-1β. Resveratrol significantly upregulated the antioxidant enzymes CAT and GPX, whereas SLNs alone had no effect. The SLN/resveratrol also markedly enhanced CAT and GPX levels. Behavioral tests demonstrated that the SLN/resveratrol treatment improved passive avoidance memory in the Alzheimer's model. Collectively, these results indicate that SLN/resveratrol robustly enhances neuroprotection by modulating signaling pathways, reducing oxidative stress, and improving memory, with the SLN delivery system potentially increasing bioavailability and neural exposure.
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