Evaluation of Monoaminergic Levels after Acute Administration of Standardized Extract of Justicia Pectoralis in Mice
Revista cubana de farmacia(2019)
摘要
Introduction: Justicia pectoralis is used as antiinflamatory, antimicrobial, bronchodilator, and sedative, and some studies have shown that it also acts in the Central Nervous System. Objective: To evaluate effects of aqueous standardized extract of Justicia pectoralis (SEJP) in the monoamine levels of animals to elucidate the underlying neurochemical mechanisms associated. Methods: Extract was administered intragastrically to male mice at single dose of 200 mg/kg at a volume of (10 mL/kg). One hour after the drug administration, the animals were sacrificed by decapitation, and the prefrontal cortex (PFC), hippocampus (HC) and striatum (ST) were dissected. The High-Performance Liquid Chromatography ( HPLC) method was used for determining levels of noradrenaline (NA), dopamine (DA), 3,4-dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), serotonin (5-HT) and 5-hydroxyindoleacetic acid (5-HIAA). Results: The work showed that SEJP decreased DA, DOPAC, NE ( p < 0.01) and 5-HT ( p < 0,05) levels in the prefrontal cortex. The basal level of NE in the hippocampus was significantly reduced ( p < 0.05) when compared to control group. The treatment also decreased DA ( p < 0.001), DOPAC ( p < 0.01) and HVA ( p < 0,001) levels in the striatum. Conclusion: The findings showed that SEJP decreased the monoamines levels in the brain areas observed and suggest that Justicia pectoralis has potential clinical applications in the management of psychiatric disorders.
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