Antidepressant, anxiolytic, antipyretic, and thrombolytic profiling of methanol extract of the aerial part of Piper nigrum: In vivo, in vitro, and in silico approaches
Abstract
Abstract Piper nigrum L. also called black pepper is popular for its numerous uses. The present research is designed to investigate the pharmacological potential of methanol extract of Piper nigrum (MEPN). The antidepressant investigation was performed by using both in vivo forced swimming test (FST) and tail suspension test (TST) methods while the anxiolytic research by hole‐board test (HBT) method. Again, the antipyretic analysis was conducted through yeast‐induced pyrexia method, whereas clot lysis activity was employed by the thrombolytic method. Furthermore, in silico studies followed by molecular docking analysis of several secondary metabolites, pass prediction, and ADME/T were evaluated with AutoDock Vina, Discovery Studio 2020, UCSF Chimera software PASS online, and ADME/T online tools. The plant extract demonstrated dose‐dependent potentiality in antidepressant, anxiolytic, antipyretic, and thrombolytic activities. Induction of MEPN produced a significant ( p < .5, p < .001) increase of mobility in FST and TST, and increased the head dipping and decreased the latency of time ( p < .01, p < .001) in HBT. MEPN 400 (mg/kg; b.w.; p.o.) lowered the rectal temperature of yeast‐induced pyrexia substantially ( p < .001). Besides, MEPN produced promising ( p < .001) clot lysis activity. In the computational approach, among all the proteins, a docking score was found ranging from −1.0 to −7.90 kcal/mol. Besides, all the compounds were found safe in ADME/T study. The results…
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