Abstract
Water hyacinth (Eichhornia crassipes (Mart.) Solms) is a highly invasive aquatic weed native to the Amazonia basin, known for its rapid propagation, adaptability and utilization in traditional medicine. The study aims to unveil the therapeutic potential of water hyacinth flowers methanolic extract (EC-CME) and its four kupchan fractions (EC-PESF, EC-DCMSF, EC-EASF, EC-ASF) through diversified chemical-pharmacological approaches. GC-MS/MS of EC-CME uncovered a rich tapestry of 72 phytochemical components. In vitro DPPH scavenging assay and total phenolic content determination assay deciphered promising antioxidant assays with remarkably low IC50 values of 0.353 and 0.485 µg/mL, respectively for EC-ESF and EC-ASF. Besides, different in vivo tests, including tail emersion, acetic acid-induced writhing, and thiopental-induced sleeping test of EC-CME, yielded a remarkable 8.61 ± 0.29 minutes of tail immersion time compared to the control's 2.05 ± 0.11 minutes at the highest dose (600 mg/kg). The best % inhibition of writhing was recorded as 47.96% accrued in 400 mg/kg dose, indicating robust pain-relieving properties. The onset and duration of sleep are significantly ameliorated for EC-CME, unveiling its antidepressant potential. Besides, molecular docking studies along with ADME/T analysis also validated the wet lab findings as well as their safety, efficacy and drug-likeliness profile.
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