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de F Cesário HPS, Silva FCO, Ferreira MKA, de Menezes JESA, Dos Santos HS, Nogueira CES, de L Silva KSB, Hajdu E, Silveira ER, Pessoa ODL. Anxiolytic-like effect of brominated compounds from the marine sponge Aplysina fulva on adult zebrafish (Danio rerio): Involvement of the GABAergic system. Neurochem Int 2021; 146:105021. [PMID: 33741413 DOI: 10.1016/j.neuint.2021.105021] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 03/04/2021] [Accepted: 03/12/2021] [Indexed: 12/13/2022]
Abstract
Benzodiazepines are commonly used to treat disorders of the central nervous system, including anxiety. However, due to their adverse effects, there is a continuing interest in discovering new safe and effective drugs. Marine natural products have emerged as a prolific source of bioactive nitrogenated compounds. Aiming to discover new biologically active natural compounds, the marine sponge Aplysina fulva, a nitrogen-bearing heterocyst producer, was investigated. The main isolated compounds (4, 6, and 9) were evaluated on adult zebrafish (Danio rerio). A group of fishes (n = 6) was preliminarily subjected to acute toxicity, and open field tests using 0.1, 0.5, and 1.0 mg/mL (v. o.) of those compounds was performed. The anxiolytic effect was further investigated in the light/dark assay based on the locomotor response at zebrafish. Interactions through the GABAergic system were investigated using flumazenil, a silent modulator of GABA receptors. To improve the results, a study of molecular docking using the GABAA receptor also was performed. Based on the results, the bromotyrosine derivative compounds 4, 6, and 9 exhibited anxiolytic-like effects mediated by the GABAergic system.
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Affiliation(s)
- Hozana Patrícia S de F Cesário
- Department of Organic and Inorganic Chemistry, Science Center, Federal University of Ceará, Fortaleza, CE, 60455-760, Brazil
| | | | | | - Jane Eire S A de Menezes
- Laboratory of Chemistry of Natural Products, Ceará State University, Fortaleza, CE, 60174-903, Brazil
| | - Hélcio S Dos Santos
- Laboratory of Chemistry of Natural Products, Synthesis and Biocatalysis of Organic Compounds, Vale do Acaraú University, Sobral, CE, 62040-370, Brazil
| | - Carlos E S Nogueira
- Department of Physics, Regional University of Cariri, Crato, CE, 63041-145, Brazil
| | - Karísia S B de L Silva
- Department of Organic and Inorganic Chemistry, Science Center, Federal University of Ceará, Fortaleza, CE, 60455-760, Brazil
| | - Eduardo Hajdu
- Department of Invertebrates, National Museum, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 20940-040, Brazil
| | - Edilberto R Silveira
- Department of Organic and Inorganic Chemistry, Science Center, Federal University of Ceará, Fortaleza, CE, 60455-760, Brazil
| | - Otília Deusdênia L Pessoa
- Department of Organic and Inorganic Chemistry, Science Center, Federal University of Ceará, Fortaleza, CE, 60455-760, Brazil.
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Abstract
Covering: July 2012 to June 2015. Previous review: Nat. Prod. Rep., 2013, 30, 869-915The structurally diverse imidazole-, oxazole-, and thiazole-containing secondary metabolites are widely distributed in terrestrial and marine environments, and exhibit extensive pharmacological activities. In this review the latest progress involving the isolation, biological activities, and chemical and biogenetic synthesis studies on these natural products has been summarized.
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Affiliation(s)
- Zhong Jin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China. and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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