| Autor: |
Ribeiro de Novais Júnior L; Behavioral Neuroscience Laboratory, University of Southern Santa Catarina, Santa Catarina, Brazil., Vicente da Silva T; Behavioral Neuroscience Laboratory, University of Southern Santa Catarina, Santa Catarina, Brazil., da Silva LM; Behavioral Neuroscience Laboratory, University of Southern Santa Catarina, Santa Catarina, Brazil., Metzker de Andrade F; Behavioral Neuroscience Laboratory, University of Southern Santa Catarina, Santa Catarina, Brazil., da Silva AR; Behavioral Neuroscience Laboratory, University of Southern Santa Catarina, Santa Catarina, Brazil., Meneguzzo V; Behavioral Neuroscience Laboratory, University of Southern Santa Catarina, Santa Catarina, Brazil., de Souza Ramos S; Behavioral Neuroscience Laboratory, University of Southern Santa Catarina, Santa Catarina, Brazil., Michielin Lopes C; Behavioral Neuroscience Laboratory, University of Southern Santa Catarina, Santa Catarina, Brazil., Bernardo Saturnino A; Behavioral Neuroscience Laboratory, University of Southern Santa Catarina, Santa Catarina, Brazil., Inserra A; Behavioral Neuroscience Laboratory, University of Southern Santa Catarina, Santa Catarina, Brazil.; Department of Psychiatry, McGill University, Montreal, Canada., de Bitencourt RM; Behavioral Neuroscience Laboratory, University of Southern Santa Catarina, Santa Catarina, Brazil. |
| Abstrakt: |
Background: Mounting evidence suggests that the phytocannabinoid cannabidiol (CBD) holds promise as an antidepressant agent in conditions underlined by inflammation. Full-spectrum CBD extracts might provide greater behavioral efficacy than CBD-only isolates and might require lower doses to achieve the same outcomes due to the presence of other cannabinoids, terpenes, and flavonoids. However, investigations in this area remain limited. Methods: We evaluated the behavioral response to the administration for 7 days of 15 and 30 mg/kg of a CBD isolate and a full-spectrum CBD product in a rat model of subchronic lipopolysaccharide (LPS, 0.5 mg/kg/day/7 days, intraperitoneal)-induced depressive-like and sickness behavior. The forced swim test was used to assess depressive-like behavior, the open field test (OFT) to assess locomotion, and the elevated plus maze to assess anxiety-like behavior. Results: The full-spectrum CBD extract at both doses, but not the CBD isolate, reversed the LPS-induced depressive-like behavior in the forced swim test. Moreover, the full-spectrum CBD extract at the higher dose but not the CBD isolate restored the subchronic LPS-induced hypolocomotion in the OFT. Repeated administration of both formulations elicited an anxiogenic-like trend in the elevated plus maze. Conclusion: Full-spectrum CBD products might have greater therapeutic efficacy in resolving inflammation-induced depressive and sickness behavior compared to a CBD-only isolate. |
