Ameliorative Effects of Nypa fruticans Leaf Extract on Anxiety and Depression: Evidence From In Vivo and In Silico Studies
Abstract
Ethnopharmacological relevance: Nypa fruticans (Arecaceae) has long been used in traditional medicine for the management of anxiety, insomnia, and depressive symptoms. However, scientific validation of its neuropharmacological activities and active constituents is limited.
Aim of the study: This study evaluated the anxiolytic, antidepressant, and sedative activities of the ethyl acetate fraction of Nypa fruticans (NF) leaves (EaNFL) through in vivo behavioral models and in silico molecular docking (MD) and molecular dynamics simulations (MDS) to provide scientific support for its traditional CNS use.
Materials and methods: Neuropharmacological activities of EaNFL were assessed in mice using elevated plus maze (EPM), hole board test (HBT), open field test (OFT), hole cross test (HCT), tail suspension test (TST), and forced swimming test (FST). Major phytochemicals identified from EaNFL were subjected to MD analysis against voltage-gated potassium channels (PDB: 4UUJ), GABA-A receptors (PDB: 6X3X), and human serotonin transporter (PDB: 5I6X). Top-binding compounds were further analyzed using MDS to assess receptor-ligand stability.
Results: EaNFL (400 mg/kg) showed significant anxiolytic activity in EPM and HBT, dose-dependent sedative properties in HCT and OFT, and notable antidepressant-like effects in TST and FST. However, reduced locomotor activity may have contributed to some of the observed behavioral outcomes. MD revealed that myricetin (CID 5281672) and quercetin (CID…
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