Chrysin (5,7-dihydroxyflavone) is a flavonoid isolated from plants, such as , , and . This natural molecule exerts diverse pharmacological effects, which includes antioxidant, anti-inflammatory, anti-cancer, neuroprotective, and anti-apoptotic effects. Additionally, in brain structures, such as the hippocampus, prefrontal cortex, raphe nucleus, and striatum, involved in the physiopathology of anxiety and depression disorders, several neuropharmacological activities, including the activation of neurotransmitter systems (GABAergic, serotonergic, dopaminergic, and noradrenergic), neurotrophic factors, such as brain-derived neurotrophic factor and the nerve growth factor, and some signaling pathways are affected. The results showed that the anxiolytic and antidepressant-like effects of chrysin occurs through its interaction with specific neurotransmitter systems, principally the GABAergic and the serotonergic, and activation of other neurotrophic factors. However, it is not possible to discard the antioxidant and anti-inflammatory activities of chrysin while producing its anxiolytic- and antidepressant-like effects. Although these results have been obtained principally from pre-clinical research, they consistently demonstrate the potential therapeutic use of flavonoid chrysin as an anxiolytic and antidepressant agent. Therefore, this flavonoid could be considered as a promising novel therapy for anxiety and depression disorders.
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http://dx.doi.org/10.3390/molecules27113551 | DOI Listing |
J Ethnopharmacol
December 2024
School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China. Electronic address:
Ethnopharmacological Relevance: Comus officinalis Sieb. et Zucc has significant neuroprotective activity and has been widely studied for its potential to improve cognitive function. Our team's previous research has found that loganin isolated from Comus officinalis has an antidepressant effect.
View Article and Find Full Text PDFNeuropharmacology
December 2024
Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, Edifício Egas Moniz, 1649-028, Lisboa, Portugal; Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, Edifício Egas Moniz, 1649-028, Lisboa, Portugal; Gulbenkian Institute for Molecular Medicine, Avenida Professor Egas Moniz, 1649-035 Lisboa, Portugal. Electronic address:
Biomed Pharmacother
December 2024
IUNICS, University of the Balearic Islands, Palma, Spain; Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain; Department of Medicine, University of the Balearic Islands, Palma, Spain. Electronic address:
While ketamine was approved for treatment-resistant depression in adult patients, its efficacy and safety profile for adolescence still requires further characterization. In this context, prior preclinical studies have shown that sub-anesthetic doses of ketamine during adolescence exert antidepressant-like effects in rodents in a dose- and sex-dependent manner. However, additional studies evaluating the short- and long-term safety profile of ketamine at the doses necessary to induce antidepressant-like effects are needed.
View Article and Find Full Text PDFPsychedelic Med (New Rochelle)
December 2024
Departments of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Introduction: Psychedelic-induced experiences are thought to play an important role in the therapeutic actions of rapid-acting antidepressants. General anesthesia is one scenario in which patients can be rendered unconscious and masked to the psychedelic treatment, providing a simple yet effective method to examine drug-induced changes in the brain devoid of experiences.
Methods: Chronically stressed adult C57/BL6 male mice were given subhypnotic ketamine alone or ketamine and GABAergic anesthetic isoflurane at sedative (0.
Behav Pharmacol
December 2024
Neurolixis SAS, Castres, France.
Ketamine displays efficacious rapid-acting antidepressant (RAAD) activity in the rat chronic mild stress (CMS) model. It rapidly reverses anhedonia (CMS-induced sucrose consumption deficit) and attenuates working memory deficit (novel object recognition: NOR) following both systemic (intraperitoneal, i.p.
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