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Nanomedicine ; 59: 102752, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38740358

ABSTRACT

Fisetin has displayed potential as an anticonvulsant in preclinical studies yet lacks clinical validation. Challenges like low solubility and rapid metabolism may limit its efficacy. This study explores fisetin-loaded chitosan nanoparticles (NP) to address these issues. Using a murine model of pilocarpine-induced temporal lobe epilepsy, we evaluated the anticonvulsant and neuroprotective effects of fisetin NP. Pilocarpine-induced seizures and associated neurobehavioral deficits were assessed after administering subtherapeutic doses of free fisetin and fisetin NP. Changes in ROS, inflammatory cytokines, and NLRP3/IL-18 expression in different brain regions were estimated. The results demonstrate that the fisetin NP exerts protection against seizures and associated depression-like behavior and memory impairment. Furthermore, biochemical, and histological examinations supported behavioral findings suggesting attenuation of ROS/TNF-α-NLRP3 inflammasome pathway as a neuroprotective mechanism of fisetin NP. These findings highlight the improved pharmacodynamics of fisetin using fisetin NP against epilepsy, suggesting a promising therapeutic approach against epilepsy and associated behavioral deficits.


Subject(s)
Chitosan , Epilepsy, Temporal Lobe , Flavonols , Inflammasomes , NLR Family, Pyrin Domain-Containing 3 Protein , Nanoparticles , Pilocarpine , Reactive Oxygen Species , Tumor Necrosis Factor-alpha , Animals , Epilepsy, Temporal Lobe/drug therapy , Epilepsy, Temporal Lobe/chemically induced , Epilepsy, Temporal Lobe/pathology , Epilepsy, Temporal Lobe/metabolism , Chitosan/chemistry , Chitosan/pharmacology , Flavonols/pharmacology , Mice , NLR Family, Pyrin Domain-Containing 3 Protein/metabolism , Inflammasomes/metabolism , Inflammasomes/drug effects , Nanoparticles/chemistry , Male , Reactive Oxygen Species/metabolism , Tumor Necrosis Factor-alpha/metabolism , Flavonoids/pharmacology , Flavonoids/administration & dosage , Behavior, Animal/drug effects , Anticonvulsants/pharmacology , Neuroprotective Agents/pharmacology
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