Journal Article

Psychopharmacological effects of riparin III from Aniba riparia (Nees) Mez. (Lauraceae) supported by metabolic approach and multivariate data analysis

Nóbrega de Almeida, Reinaldo, Fernandes de Oliveira Golzio, Adriana Maria, Fechine Tavares, Josean, Golzio dos Santos, Sócrates, Fernandes Gomes, Isis, Chavez Gutierrez, Stanley Juan, Lopes Souto, Augusto, Barbosa-Filho, José Maria, Scotti, Marcus Tullius, Sobral da Silva, Marcelo

2020

Overview

Background Currently there is a high prevalence of humor disorders such as anxiety and depression throughout the world, especially concerning advanced age patients. Aniba riparia (Nees) Mez. (Lauraceae), popular known as “louro”, can be found from the Amazon through Guianas until the Andes. Previous studies have already reported the isolation of alkamide-type alkaloids such as riparin III (O-methyl-N-2,6-dyhydroxy-benzoyl tyramine) which has demonstrated anxiolytic and antidepressant-like effects in high doses by intraperitoneal administration. Methods Experimental protocol was conducted in order to analyze the anxiolytic-like effect of riparin III at lower doses by intravenous administration to Wistar rats ( Rattus norvegicus ) ( n  = 5). The experimental approach was designed to last 15 days, divided in 3 distinct periods of five days: control, anxiogenic and treatment periods. The anxiolytic-like effect was evaluated by experimental behavior tests such as open field and elevated plus-maze test, combined with urine metabolic footprint analysis. The urine was collected daily and analyzed by 1 H NMR. Generated data were statistically treated by Principal Component Analysis in order to detect patterns among the distinct periods evaluated as well as biomarkers responsible for its distinction. Results It was observed on treatment group that cortisol, biomarker related to physiological stress was reduced, indicating anxiolytic-like effect of riparin III, probably through activation of 5-HT 2A receptors, which was corroborated by behavioral tests. Conclusion 1 H NMR urine metabolic footprint combined with multivariate data analysis have demonstrated to be an important diagnostic tool to prove the anxiolytic-like effect of riparin III in a more efficient and pragmatic way.

• Publisher: BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
• Subject: Alkaloids / Analysis / Andes region / Aniba / Aniba riparia / Antianxiety agents / Antidepressants / Anxiety / Anxiety animal model / Anxiolytics / Basic research / Behavior / Biomarkers / Camcorders / Chiropractic Medicine / complement / Complementary & Alternative Medicine / cortisol / Data analysis / Depression (Mood disorder) / Diagnostic software / Diagnostic systems / diagnostic techniques / elderly / Experiments / Footprint / Footprint analysis / Information management / Internal Medicine / intraperitoneal injection / Intravenous administration / intravenous injection / Laboratory animals / Lauraceae / Medicine / Medicine & Public Health / Mental depression / Metabolism / Metabolites / Metabolomics analysis / Multivariate analysis / NMR / Nuclear magnetic resonance / Open-field behavior / Physiological aspects / Physiological effects / principal component analysis / Principal components analysis / Rattus norvegicus / Research Article / Riparin / Rodents / Serotonin S2 receptors / Stress (physiology) / tranquilizers / Tyramine / Urine