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Oliveira Júnior JB, Rocha da Mota DA, de Lima FCS, Higino TMM, Chavez Gutierrez SJ, Camara CA, Barbosa Filho JM, Alves LC, Brayner FA. In vitro inhibition and eradication of multidrug-resistant Acinetobacter baumannii biofilms by riparin III and colistin combination. Microb Pathog 2023; 182:106233. [PMID: 37422173 DOI: 10.1016/j.micpath.2023.106233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/14/2023] [Accepted: 07/04/2023] [Indexed: 07/10/2023]
Abstract
Acinetobacter baumannii, a prominent emerging pathogen, is responsible for persistent and recurrent healthcare-associated infections (HAIs). Its bacterial resistance and virulence factors, such as biofilm formation, contribute to its survival in hospital environments. Combination therapy has proven to be an effective approach for controlling these infections; however, antimicrobial resistance and compound toxicity can hinder antimicrobial efficacy. Numerous in vitro studies have demonstrated the synergistic effect of antimicrobials and natural products against multidrug-resistant (MDR) A. baumannii biofilm. Riparin III, a natural alkamide derived from Aniba riparia (Nees) Mez., possesses various biological activities, including significant antimicrobial potential. Nonetheless, no reports are available on the use of this compound in conjunction with conventional antimicrobials. Hence, this study aimed to investigate the inhibition and eradication of A. baumannii MDR biofilm by combining riparin III and colistin, along with potential ultrastructural changes observed in vitro. Clinical isolates of A. baumannii, known for their robust biofilm production, were inhibited, or eradicated in the presence of the riparin III/colistin combination. Furthermore, the combination resulted in several ultrastructural alterations within the biofilm, such as elongated cells and coccus morphology, partial or complete disruption of the biofilm's extracellular matrix, and cells exhibiting cytoplasmic material extravasation. At the synergistic concentrations, the riparin III/colistin combination exhibited a low hemolytic percentage, ranging from 5.74% to 6.19%, exerting inhibitory and eradicating effects on the A. baumannii biofilm, accompanied by notable ultrastructural changes. These findings suggest its potential as a promising alternative for therapeutic purposes.
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Affiliation(s)
- Jorge Belém Oliveira Júnior
- Laboratory of Molecular and Cellular Biology, Laboratory of Leishmaniasis and Mutagenesis, Department of Parasitology, Aggeu Magalhães Institute (FIOCRUZ/PE), Recife, Pernambuco, Brazil.
| | - Daivyane Aline Rocha da Mota
- Laboratory of Molecular and Cellular Biology, Laboratory of Leishmaniasis and Mutagenesis, Department of Parasitology, Aggeu Magalhães Institute (FIOCRUZ/PE), Recife, Pernambuco, Brazil
| | | | | | | | - Celso Amorim Camara
- Department of Chemistry, Rural Federal Universidad of Pernambuco, Recife, Pernambuco, Brazil
| | - José Maria Barbosa Filho
- Department of Pharmacy, Laboratory of Pharmaceutical Technology, Federal University of Paraiba, João Pessoa, Brazil
| | - Luiz Carlos Alves
- Laboratory of Molecular and Cellular Biology, Laboratory of Leishmaniasis and Mutagenesis, Department of Parasitology, Aggeu Magalhães Institute (FIOCRUZ/PE), Recife, Pernambuco, Brazil; Electronic Microscopy Laboratory, Keizo Asami Institute, Federal Universidad of Pernambuco, Recife, Pernambuco, Brazil
| | - Fábio André Brayner
- Laboratory of Molecular and Cellular Biology, Laboratory of Leishmaniasis and Mutagenesis, Department of Parasitology, Aggeu Magalhães Institute (FIOCRUZ/PE), Recife, Pernambuco, Brazil; Electronic Microscopy Laboratory, Keizo Asami Institute, Federal Universidad of Pernambuco, Recife, Pernambuco, Brazil
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Gomes DM, Meirelles LMA, Araujo PM, de Sousa RWR, Ferreira PMP, Gutierrez SJC, de Medeiros MDGF, Raffin FN. Improving Riparin-A Dissolution through a Laponite Based Nanohybrid. Pharmaceutics 2023; 15:2136. [PMID: 37631350 PMCID: PMC10458571 DOI: 10.3390/pharmaceutics15082136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/25/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
(1) Background: Riparin-A presents several pharmacological activities already elucidated, such as antimicrobial modulator, antileishmania, anxiolytic, anti-inflammatory, antinociceptive, and antioxidant. Even with important bioactive effects, the applicability of Riparin-A is limited due to its low solubility in water, impairing its dissolution in biological fluids. Thus, the objective of this study was to develop a nanohybrid based on Riparin-A and Laponite to obtain a better dissolution profile and evaluate its cytotoxic potential. (2) Methods: The formation of a hybrid system was highlighted by X-ray powder diffraction, infrared spectroscopy, and thermal analysis. Solubility, dissolution, and cytotoxicity studies were performed; (3) Results: An increase in the solubility and aqueous dissolution rate of Riparin-A was observed in the presence of clay. Diffractometric analysis of the hybrid system suggests the amorphization of Riparin-A, and thermal analyses indicated attenuation of decomposition and melting of the Riparin-A after interaction with clay. Furthermore, the nanosystem did not exhibit cytotoxic activity on normal and tumorigenic lines. (4) Conclusions: These results are promising for the development of the Riparin-A/Laponite nanosystem for therapeutic purposes, suggesting an increase in the range of possible routes of administration and bioavailability of this bioactive compound.
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Affiliation(s)
- Duanne Mendes Gomes
- Post Program on Pharmaceutical Sciences, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil; (D.M.G.)
| | - Lyghia Maria Araújo Meirelles
- Department of Pharmacy, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil
- Health and Quality of Life Research Laboratory (LAPESQV), University Center Santo Agostinho—UNIFSA, Teresina 64049-550, Piauí, Brazil
| | - Paulo Monteiro Araujo
- Post Program on Pharmaceutical Sciences, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil; (D.M.G.)
| | - Rayran Walter Ramos de Sousa
- Laboratory of Experimental Cancerology (LabCancer), Department of Biophysics and Physiology, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil (P.M.P.F.)
| | - Paulo Michel Pinheiro Ferreira
- Laboratory of Experimental Cancerology (LabCancer), Department of Biophysics and Physiology, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil (P.M.P.F.)
| | - Stanley Juan Chavez Gutierrez
- Post Program on Pharmaceutical Sciences, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil; (D.M.G.)
| | | | - Fernanda Nervo Raffin
- Post—Program on Development and Technological Innovation in Medications, Federal University of Rio Grande do Norte—UFRN, Natal 59012-570, Rio Grande do Norte, Brazil
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Figueiredo KA, Magalhães Costa RK, Rocha JA, Chavez Gutierrez SJ, Ramos RM, Muálem de Moraes Alves M, Aécio de Amorim Carvalho F, Menezes Carvalho AL, Lima FDCA. Antileishmanial activity of Riparin structural analogs of Aniba riparia: Biological evaluation, in silico Adme-Tox, and molecular docking. Exp Parasitol 2022; 236-237:108257. [DOI: 10.1016/j.exppara.2022.108257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 03/17/2022] [Accepted: 04/03/2022] [Indexed: 11/25/2022]
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Maia Oliveira IC, Vasconcelos Mallmann AS, Adelvane de Paula Rodrigues F, Teodorio Vidal LM, Lopes Sales IS, Rodrigues GC, Ferreira de Oliveira N, de Castro Chaves R, Cavalcanti Capibaribe VC, Rodrigues de Carvalho AM, Maria de França Fonteles M, Chavez Gutierrez SJ, Barbosa-Filho JM, Florenço de Sousa FC. Neuroprotective and Antioxidant Effects of Riparin I in a Model of Depression Induced by Corticosterone in Female Mice. Neuropsychobiology 2022; 81:28-38. [PMID: 33915549 DOI: 10.1159/000515929] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 03/15/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Depression is a common, chronic, and often recurrent serious mood disorder. Conventional antidepressants present limitations that stimulate the search for new drugs. Antioxidant and neuroprotective substances are potential antidepressant agents. In this context, riparin I (RIP I) has presented promising results, emerging as a potential source of a new therapeutic drug. In this study, the antidepressant effect of RIP I was evaluated in an animal model of depression induced by corticosterone (CORT). The involvement of neuroprotective and antioxidant mechanisms in the generation of this effect was also assessed. METHODS Female mice were submitted to CORT for 21 days and treated with RIP I in the last 7 days. Behavioral and neurochemical analyses were performed. RESULTS The administration of RIP I reversed the depressive and psychotic-like behavior, as well as the cognitive impairment caused by CORT, in addition to regulating oxidative stress parameters and BDNF levels in depression-related brain areas. CONCLUSION These findings suggest that RIP I can be a strong candidate for drugs in the treatment of depression.
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Affiliation(s)
- Iris Cristina Maia Oliveira
- Department of Physiology and Pharmacology, Neuropharmacology Laboratory, Drug Research and Development Center, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Auriana Serra Vasconcelos Mallmann
- Department of Physiology and Pharmacology, Neuropharmacology Laboratory, Drug Research and Development Center, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Francisco Adelvane de Paula Rodrigues
- Department of Physiology and Pharmacology, Neuropharmacology Laboratory, Drug Research and Development Center, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Laura Maria Teodorio Vidal
- Department of Physiology and Pharmacology, Neuropharmacology Laboratory, Drug Research and Development Center, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Iardja Stéfane Lopes Sales
- Department of Physiology and Pharmacology, Neuropharmacology Laboratory, Drug Research and Development Center, School of Medicine, Federal University of Ceará, Fortaleza, Brazil,
| | - Gabriel Carvalho Rodrigues
- Department of Physiology and Pharmacology, Neuropharmacology Laboratory, Drug Research and Development Center, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Natalia Ferreira de Oliveira
- Department of Physiology and Pharmacology, Neuropharmacology Laboratory, Drug Research and Development Center, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Raquell de Castro Chaves
- Department of Physiology and Pharmacology, Neuropharmacology Laboratory, Drug Research and Development Center, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Victor Celso Cavalcanti Capibaribe
- Department of Physiology and Pharmacology, Neuropharmacology Laboratory, Drug Research and Development Center, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Alyne Mara Rodrigues de Carvalho
- Department of Physiology and Pharmacology, Neuropharmacology Laboratory, Drug Research and Development Center, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | | | | | - José Maria Barbosa-Filho
- Department of Pharmacy, Laboratory of Pharmaceutical Technology, Federal University of Paraiba, João Pessoa, Brazil
| | - Francisca Cléa Florenço de Sousa
- Department of Physiology and Pharmacology, Neuropharmacology Laboratory, Drug Research and Development Center, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
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Mallmann ASV, Chaves RDC, de Oliveira NF, Oliveira ICM, Capibaribe VCC, Valentim JT, da Silva DMA, Sartori DP, Rodrigues GC, Filho AJMC, Riello GB, Fonteles MMDF, Vasconcelos SMM, Macedo D, Gutierrez SJC, Filho JMB, de Carvalho AMR, de Sousa FCF. Is Riparin III a promising drug in the treatment for depression? Eur J Pharm Sci 2021; 162:105824. [PMID: 33798709 DOI: 10.1016/j.ejps.2021.105824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 10/21/2022]
Abstract
Stress is crucially related to the pathophysiology of mood disorders, including depression. Since the effectiveness and number of the current pharmacological options still presents significant limitations, research on new substances is paramount. In rodents, several findings have indicated that corticosterone administration induces the manifestation of behavioral and neurochemical aspects of depression. Recently, riparin III has shown antidepressant-like properties in trials performed on animal models. Thus, our goal was to investigate the effects of riparin III on behavioral tests, monoamines levels, oxidative stress and cytokines levels in chronic corticosterone-induced model of depression. To do this, female swiss mice were treated with subcutaneous administration of corticosterone for 22 days. In addition, for the last 10 days, riparin III or fluvoxamine were also administered per os in specific test groups. Control groups received subcutaneous saline injections or distilled water per os. At the end of the timeline, the animals were killed and their hippocampi, prefrontal cortex, and striatum dissected for neurochemical analysis. Brain changes following corticosterone administration were confirmed, and riparin III could reversed the most abnormal behavioral and neurochemical corticosterone-induced alterations. These results suggest the potential antioxidant, anti-inflammatory and antidepressant effects of riparin III after a chronic stress exposure.
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Affiliation(s)
- Auriana Serra Vasconcelos Mallmann
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Raquell de Castro Chaves
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Natália Ferreira de Oliveira
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Iris Cristina Maia Oliveira
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Victor Celso Cavalcanti Capibaribe
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - José Tiago Valentim
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Daniel Moreira Alves da Silva
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Danusio Pinheiro Sartori
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Gabriel Carvalho Rodrigues
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Adriano José Maia Chaves Filho
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Giovana Barbosa Riello
- Multi-User Facility, Drug Research and Development Center, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Marta Maria de França Fonteles
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Departament of Pharmacy, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Silvânia Maria Mendes Vasconcelos
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Danielle Macedo
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | - José Maria Barbosa Filho
- Laboratory of Pharmaceutics Technology, Federal University of Paraíba, Joao Pessoa, Paraiba, Brazil
| | - Alyne Mara Rodrigues de Carvalho
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Francisca Cléa Florenço de Sousa
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil.
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Muratori Costa L, Nascimento de Sousa J, Braz DC, Lima Ferreira JH, Sampaio Nogueira CE, Barbosa-Filho JM, de Sousa Lima-Neto J, Chavez Gutierrez SJ, de Araújo Abi-Chacra É, Barreto HM. Mechanism of the lethal effect of Riparin E against bacterial and yeast strains. Microb Pathog 2021; 157:104968. [PMID: 34029656 DOI: 10.1016/j.micpath.2021.104968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 04/29/2021] [Accepted: 04/30/2021] [Indexed: 12/29/2022]
Abstract
Riparins are alkamides naturally found in the fruits of Aniba riparia (Nees) Mez, but currently synthetic molecules as Riparin E (Rip-E) can be obtained. Potential biological of Rip-E as schistosomicidal agent against Schistosoma mansoni worms, as well as against Staphylococcus aureus strains has already been described. However, the mechanism of action related to antimicrobial activity of Rip-E against bacterial or fungi species has not yet been reported. This study had as objective to evaluate the Rip-E antimicrobial activity against Gram-positive and Gram-negative bacteria, as well as against yeast species of clinical importance. Minimal inhibitory concentrations of the compound against bacterial and yeast strains were determined by microdilution method. To verify if a possible lethal effect caused by Rip-E were related to plasma membrane damage, microbial cells treated with Rip-E were stained with 7-aminoactinomycin D (7-AAD) and analyzed by flow cytometry. Rip-E showed a bactericide effect against Gram-positive species S. aureus and S. epidermidis, as well as, against Gram-negative species Escherichia coli and Salmonella enterica Typhimurium, but was inactive against Pseudomonas aeruginosa. Moreover, Rip-E showed activity against fungi species Candida albicans and C. tropicalis. S. aureus, E. coli and C. albicans cells treated with Rip-E were marked with 7-aminoactinomycin D (7-AAD) indicating that Rip-E can cause plasma membrane damage, acting as a potential microbicide agent for prevention or treatment of infectious diseases.
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Affiliation(s)
- Luciana Muratori Costa
- Department of Parasitology and Microbiology, Federal University of Piauí, Teresina, Piauí, Brazil
| | | | | | | | | | - José Maria Barbosa-Filho
- Pharmaceutical Technology Laboratory, Federal University of Paraiba, João Pessoa, Paraíba, Brazil
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Costa LM, Muálem de Moraes Alves M, Brito LM, de Araujo Abi-Chacra E, Barbosa-Filho JM, Chavez Gutierrez SJ, Barreto HM, Aécio de Amorim Carvalho F. In vitro antileishmanial and immunomodulatory activities of the synthetic analogue riparin E. Chem Biol Interact 2021; 336:109389. [PMID: 33484715 DOI: 10.1016/j.cbi.2021.109389] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/16/2020] [Accepted: 01/13/2021] [Indexed: 10/22/2022]
Abstract
Leishmaniases are infectious diseases caused by protozoa of the genus Leishmania, that may have different clinical manifestations. First line drugs used in the treatment of leishmaniosis are high costly, and are very aggressive requiring medical monitoring. Thus new therapeutic alternatives are needed and, in this context, natural products have been considered as a source of new antileishmania agents. Riparins are alkamides found in the unripe fruits of Aniba riparia. Several biological activities are described for this group of compounds, such as antimicrobial and antiparasitic potential. The objective of this work was to evaluate the anti-leishmania activity riparin E (Rip-E) in vitro, against promastigotes and internalized amastigotes of Leishmania amazonensis. Rip-E was able to inhibit promastigote cell growth (IC50 4.7 μg/ml) and to reduce the percentage of macrophages infected with amastigotes, reducing its infectivity (survival index) (IC50 1.3 μg/ml). The cytotoxicity against BALB/c murine macrophages was also assessed (CC50 50.6 μg/ml) and the selectivity index was 38.9. Rip-E also demonstrated immunomodulatory activity, evidenced by the increase of the phagocytic capacity and lysosomal activity. However, Rip-E did not affect directly the production of nitric oxide. These results suggest that Rip-E has antileishmania potential, by both its direct inhibitory effect and its ability to activate macrophages.
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Affiliation(s)
- Luciana Muratori Costa
- Laboratory for Research in Microbiology, Department of Parasitology and Microbiology, Federal University of Piauí, Teresina, PI, Brazil
| | | | - Lucas Moreira Brito
- Medicinal Plants Research Center, Federal University of Piauí, Teresina, PI, Brazil
| | - Erika de Araujo Abi-Chacra
- Laboratory for Research in Microbiology, Department of Parasitology and Microbiology, Federal University of Piauí, Teresina, PI, Brazil
| | - José Maria Barbosa-Filho
- Pharmaceutical Technology Laboratory, Federal University of Paraiba, João Pessoa, Paraíba, Brazil
| | - Stanley Juan Chavez Gutierrez
- Laboratory Chemistry of Bioactive Natural and Synthetic Products, Department of Pharmacy, Federal University of Piauí, Teresina, PI, Brazil
| | - Humberto Medeiros Barreto
- Laboratory for Research in Microbiology, Department of Parasitology and Microbiology, Federal University of Piauí, Teresina, PI, Brazil.
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8
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Oliveira-Júnior JB, da Silva EM, Veras DL, Ribeiro KRC, de Freitas CF, de Lima FCG, Gutierrez SJC, Camara CA, Barbosa-Filho JM, Alves LC, Brayner FA. Antimicrobial activity and biofilm inhibition of riparins I, II and III and ultrastructural changes in multidrug-resistant bacteria of medical importance. Microb Pathog 2020; 149:104529. [PMID: 33010367 DOI: 10.1016/j.micpath.2020.104529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/17/2020] [Accepted: 09/18/2020] [Indexed: 10/23/2022]
Abstract
Natural products have been used to treat various infections; however, the development of antimicrobials has made natural products in disuse. Riparin I, II and III are natural alkamide isolated from Aniba riparia (Ness) Mez (Lauraceae), that exhibit economic importance and it is used in traditional medicine, and popularly known as "louro". This study investigated the cytotoxicity, antimicrobial and antibiofilm activity, and ultrastructural changes in vitro by riparins I, II and III in Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii and Pseudomonas aeruginosa. We analyzed the cytotoxicity by MTT assay in Vero cells and hemolytic action verified in human erythrocytes. The antimicrobial activity was determined by microdilution in broth against ATCC strains, identifying the susceptible species. Subsequently, only the MDR isolates of sensitive bacterial species were evaluated regarding its biofilm formation and ultrastructural changes. Riparin I presented low cytotoxicity and hemolytic percentage ranging from of 9.01%-12.97%. Only the riparin III that showed antimicrobial activity against MDR clinical isolates, and significant reduction in biofilm formation in S. aureus. Moreover, the riparin III promoted ultrastructural changes in bacterial cells, such as elongated cellular without bacterial septum, cells with a rugged appearance on the cell surface and cytoplasmic material extravasation. As has been noted riparin III has an inhibitory potential against biofilm formation in S. aureus, besides having antimicrobial activity and promoting ultrastructural changes in MDR clinical isolates. Thus, riparin III is an interesting alternative for further studies aiming to develop new therapeutic options.
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Affiliation(s)
- Jorge Belém Oliveira-Júnior
- Laboratory of Molecular and Cellular Biology, Department of Parasitology, Institute Aggeu Magalhães - FIOCRUZ/PE (Av. Prof. Moraes Rego, S/n - Cidade Universitária, Recife/PE, 50670-420, Brazil.
| | - Everton Morais da Silva
- Laboratory of Molecular and Cellular Biology, Department of Parasitology, Institute Aggeu Magalhães - FIOCRUZ/PE (Av. Prof. Moraes Rego, S/n - Cidade Universitária, Recife/PE, 50670-420, Brazil
| | - Dyana Leal Veras
- Laboratory of Molecular and Cellular Biology, Department of Parasitology, Institute Aggeu Magalhães - FIOCRUZ/PE (Av. Prof. Moraes Rego, S/n - Cidade Universitária, Recife/PE, 50670-420, Brazil
| | - Karla Raíza Cardoso Ribeiro
- Laboratory of Molecular and Cellular Biology, Department of Parasitology, Institute Aggeu Magalhães - FIOCRUZ/PE (Av. Prof. Moraes Rego, S/n - Cidade Universitária, Recife/PE, 50670-420, Brazil
| | - Catarina Fernandes de Freitas
- Laboratory of Molecular and Cellular Biology, Department of Parasitology, Institute Aggeu Magalhães - FIOCRUZ/PE (Av. Prof. Moraes Rego, S/n - Cidade Universitária, Recife/PE, 50670-420, Brazil
| | - Fernanda Cristina Gomes de Lima
- Laboratory of Molecular and Cellular Biology, Department of Parasitology, Institute Aggeu Magalhães - FIOCRUZ/PE (Av. Prof. Moraes Rego, S/n - Cidade Universitária, Recife/PE, 50670-420, Brazil
| | - Stanley Juan Chavez Gutierrez
- Pharmacy Course Coordination, Federal University of Piauí (Campus Universitário Ministro Petrônio Portela, SG-8 - Bairro Ininga, Teresina, PI, 64049-550, Brazil
| | - Celso Amorim Camara
- Department of Chemistry, Rural Federal University of Pernambuco (Rua Dom Manuel de Medeiros, S/n - Dois Irmãos, Recife, PE, 52171-900, Brazil
| | - José Maria Barbosa-Filho
- Laboratory of Pharmaceutical Technology, Federal University of Paraíba (Campus I - Lot. Cidade Universitária, João Pessoa, PB, 58051-900, Brazil
| | - Luiz Carlos Alves
- Laboratory of Molecular and Cellular Biology, Department of Parasitology, Institute Aggeu Magalhães - FIOCRUZ/PE (Av. Prof. Moraes Rego, S/n - Cidade Universitária, Recife/PE, 50670-420, Brazil; Electronic Microscopy, Laboratory of Immunopathology Keizo Asami, Federal University of Pernambuco (Av. Prof. Moraes Rego, 1235 - Cidade Universitária, Recife, PE, 50670-901, Brazil
| | - Fábio André Brayner
- Laboratory of Molecular and Cellular Biology, Department of Parasitology, Institute Aggeu Magalhães - FIOCRUZ/PE (Av. Prof. Moraes Rego, S/n - Cidade Universitária, Recife/PE, 50670-420, Brazil; Electronic Microscopy, Laboratory of Immunopathology Keizo Asami, Federal University of Pernambuco (Av. Prof. Moraes Rego, 1235 - Cidade Universitária, Recife, PE, 50670-901, Brazil
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9
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Chaves RDC, Mallmann ASV, de Oliveira NF, Capibaribe VCC, da Silva DMA, Lopes IS, Valentim JT, Barbosa GR, de Carvalho AMR, Fonteles MMDF, Gutierrez SJC, Barbosa Filho JM, de Sousa FCF. The neuroprotective effect of Riparin IV on oxidative stress and neuroinflammation related to chronic stress-induced cognitive impairment. Horm Behav 2020; 122:104758. [PMID: 32304685 DOI: 10.1016/j.yhbeh.2020.104758] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 04/08/2020] [Accepted: 04/10/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Cognitive impairment is identified as one of the diagnostic criteria for major depressive disorder and can extensively affect the quality of life of patients. Based on these findings, this study aimed to investigate the possible effects of Riparin IV (Rip IV) on cognitive impairment induced by chronic administration of corticosterone in mice. METHODS Female Swiss mice were divided into four groups: control (Control), corticosterone (Cort), Riparin IV (Cort + Rip IV), and Fluvoxamine (Cort + Flu). Three groups were administered corticosterone (20 mg/kg) subcutaneously during the 22-day study, while the control group received only vehicle. After the 14th day, the groups were administered medications: Riparin IV (Rip IV), fluvoxamine (Flu), or distilled water, by gavage, 1 h after the subcutaneous injections. After treatment, mice underwent behavioral testing, and brain areas were removed for oxidative stress and cytokine content assays. RESULTS The results revealed that Cort-treated mice developed a cognitive impairment and exhibited a neuroinflammatory profile with an oxidative load and Th1/Th2 cytokine imbalance. Rip IV treatment significantly ameliorated the cognitive deficit induced by Cort and displayed a neuroprotective effect. CONCLUSION The antidepressant-like ability of Rip IV treatment against chronic Cort-induced stress may be due to its potential to mitigate inflammatory damage and oxidative stress. The antioxidant and anti-inflammatory effect observed indicates Rip IV as a possible drug for antidepressant treatment of non-responsive patients with severe and cognitive symptoms.
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Affiliation(s)
- Raquell de Castro Chaves
- Neuropharmacology Laboratory, Drug Research and Development Center, Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Auriana Serra Vasconcelos Mallmann
- Neuropharmacology Laboratory, Drug Research and Development Center, Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Natália Ferreira de Oliveira
- Neuropharmacology Laboratory, Drug Research and Development Center, Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Victor Celso Cavalcanti Capibaribe
- Neuropharmacology Laboratory, Drug Research and Development Center, Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Daniel Moreira Alves da Silva
- Neuropharmacology Laboratory, Drug Research and Development Center, Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Iardja Stéfane Lopes
- Neuropharmacology Laboratory, Drug Research and Development Center, Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - José Tiago Valentim
- Neuropharmacology Laboratory, Drug Research and Development Center, Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Giovanna Riello Barbosa
- Multi-User Facility, Drug Research and Development Center, Federal University of Ceará, Brazil
| | - Alyne Mara Rodrigues de Carvalho
- Neuropharmacology Laboratory, Drug Research and Development Center, Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | - Stanley Juan Chavez Gutierrez
- Laboratory of Pharmaceutical Chemistry, Department of Biochemistry and Pharmacology, Federal University of Piauí, Teresina, Piauí, Brazil
| | - José Maria Barbosa Filho
- Laboratory of Pharmaceutical Technology, Department of Pharmaceutical Science, Federal University of Paraiba, João Pessoa, Paraiba, Brazil
| | - Francisca Cléa Florenço de Sousa
- Neuropharmacology Laboratory, Drug Research and Development Center, Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil.
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10
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Golzio Dos Santos S, Fernandes Gomes I, Fernandes de Oliveira Golzio AM, Lopes Souto A, Scotti MT, Fechine Tavares J, Chavez Gutierrez SJ, Nóbrega de Almeida R, Barbosa-Filho JM, Sobral da Silva M. Psychopharmacological effects of riparin III from Aniba riparia (Nees) Mez. (Lauraceae) supported by metabolic approach and multivariate data analysis. BMC Complement Med Ther 2020; 20:149. [PMID: 32416725 PMCID: PMC7229579 DOI: 10.1186/s12906-020-02938-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 04/27/2020] [Indexed: 12/18/2022] Open
Abstract
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 1H 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-HT2A receptors, which was corroborated by behavioral tests. Conclusion 1H 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.
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Affiliation(s)
- Sócrates Golzio Dos Santos
- Instituto de Pesquisa de Fármacos e Medicamentos - IPeFarM, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Isis Fernandes Gomes
- Instituto de Pesquisa de Fármacos e Medicamentos - IPeFarM, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | | | - Augusto Lopes Souto
- Instituto de Pesquisa de Fármacos e Medicamentos - IPeFarM, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Marcus Tullius Scotti
- Instituto de Pesquisa de Fármacos e Medicamentos - IPeFarM, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Josean Fechine Tavares
- Instituto de Pesquisa de Fármacos e Medicamentos - IPeFarM, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Stanley Juan Chavez Gutierrez
- Instituto de Pesquisa de Fármacos e Medicamentos - IPeFarM, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Reinaldo Nóbrega de Almeida
- Instituto de Pesquisa de Fármacos e Medicamentos - IPeFarM, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - José Maria Barbosa-Filho
- Instituto de Pesquisa de Fármacos e Medicamentos - IPeFarM, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
| | - Marcelo Sobral da Silva
- Instituto de Pesquisa de Fármacos e Medicamentos - IPeFarM, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil.
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11
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Sartori DP, Oliveira NF, Valentim JT, Silva DMA, Mallman ASV, Oliveira ICM, Chaves RC, Capibaribe VC, Carvalho AMR, Rebouças MO, Macedo DS, Chaves Filho AJM, Fonteles MMF, Gutierrez SJC, Barbosa-Filho JM, Mottin M, Andrade CH, Sousa FCF. Involvement of monoaminergic targets in the antidepressant- and anxiolytic-like effects of the synthetic alkamide riparin IV: Elucidation of further mechanisms through pharmacological, neurochemistry and computational approaches. Behav Brain Res 2020; 383:112487. [PMID: 31987932 DOI: 10.1016/j.bbr.2020.112487] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 01/12/2020] [Accepted: 01/16/2020] [Indexed: 01/16/2023]
Abstract
Despite recent advances, current antidepressants have considerable limitations: late onset of action and the high profile of refractoriness. Biomedical research with natural products has gained growing interest in the last years, and had provide useful candidates for new antidepressants. Riparins are a group of natural alkamides obtained from Aniba riparia, which had marked neuroactive effects, mainly as antidepressant and antinociceptive agents. We made modifications of the basic structure of riparins, originating a synthetic alkamide, also known as riparin IV (RipIV). RipIV demonstrated a superior analgesic effect than its congeners and a marked antidepressant-like effect. However, the basic mechanism for the central effects of RipIV remains unknown. Here, we aimed to investigate the participation of monoaminergic neurotransmission targets in the antidepressant-like effects of RipIV. To do this, we applied a combined approach of experimental (classical pharmacology and neurochemistry) and computer-aided techniques. Our results demonstrated that RipIV presented antidepressant- and anxiolytic-like effects without modifying locomotion and motor coordination of mice. Also, RipIV increased brain monoamines and their metabolite levels. At the higher dose (100 mg/kg), RipIV increased serotonin concentrations in all studied brain areas, while at the lower one (50 mg/kg), it increased mainly dopamine and noradrenaline levels. When tested with selective receptor antagonists, RipIV antidepressant effect showed dependence of the activation of multiple targets, including D1 and D2 dopamine receptors, 5-HT2A/2, 5-HT3 receptors and α2 adrenergic receptors. Molecular docking demonstrated favorable binding conformation and affinity of RipIV to monoamine oxidase B (MAO-B), serotonin transporter (SERT), α1 receptor, D2 receptor, dopamine transporter (DAT) and at some extent GABA-A receptor. RipIV also presented a computationally predicted favorable pharmacokinetic profile. Therefore, this study demonstrated the involvement of monoaminergic targets in the mechanism of RipIV antidepressant-like action, and provide evidence of it as a promising new antidepressant.
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Affiliation(s)
- Danusio Pinheiro Sartori
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - N F Oliveira
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - José Tiago Valentim
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - D M A Silva
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - A S V Mallman
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - I C M Oliveira
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - R C Chaves
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - V C Capibaribe
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - A M R Carvalho
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - M O Rebouças
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Danielle Silveira Macedo
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Adriano José Maia Chaves Filho
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil; LabMol - Laboratory of Molecular Modeling and Drug Design, Faculty of Pharmacy, Federal University of Goiás, Goiânia, Goiais, Brazil
| | - M M F Fonteles
- Department of Pharmacy, Faculty of Pharmacy, Odontology and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - S J C Gutierrez
- Laboratory Chemistry of Bioactive Natural and Synthetic Products, Federal University of Piauí, Teresina, Piauí, Brazil
| | - José Maria Barbosa-Filho
- Pharmaceutical Technology Laboratory, Federal University of Paraiba, João Pessoa, Paraíba, Brazil
| | - Melina Mottin
- LabMol - Laboratory of Molecular Modeling and Drug Design, Faculty of Pharmacy, Federal University of Goiás, Goiânia, Goiais, Brazil
| | - Carolina Horta Andrade
- LabMol - Laboratory of Molecular Modeling and Drug Design, Faculty of Pharmacy, Federal University of Goiás, Goiânia, Goiais, Brazil
| | - F C F Sousa
- Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Ceará, Brazil.
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12
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Rodrigues de Carvalho AM, Vasconcelos LF, Moura Rocha NF, Vasconcelos Rios ER, Dias ML, Maria de França Fonteles M, Gaspar DM, Barbosa Filho JM, Chavez Gutierrez SJ, Florenço de Sousa FC. Antinociceptive activity of Riparin II from Aniba riparia: Further elucidation of the possible mechanisms. Chem Biol Interact 2018; 287:49-56. [PMID: 29655911 DOI: 10.1016/j.cbi.2018.04.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/17/2018] [Accepted: 04/05/2018] [Indexed: 11/18/2022]
Abstract
Riparin II (RipII) has an anti-inflammatory activity potentially due its ability to decrease TNF-α and IL-1β production and its histamine antagonism. The objective of this study was to evaluate the role of RipII in the pain process and the possible antinociceptive mechanisms involved, using classic models of nociception. Male Swiss mice were used in the assays. Determinate the acute toxicity according to the OECD 425 test guideline. The models used were the acetic acid-, formalin-, hot plate and glutamate-induced nociception. For evaluation of antinociceptive effect, the involvement of TRPV1, TRPA1, TRPM8, ASICS, Bradykinin, PKC and PKA were performed using the paw licking using agonists. The acute toxicity study did not detect any clinical signs or changes in behavior or mortality. RipII, administered orally (25 and 50 mg/kg) caused a reduction of nociception induced by acetic acid, formalin (on the second phase) and glutamate. In the investigation of antinociceptive mechanism, we used capsaicin (2.2 μg/paw), cinnamaldehyde (10 nmol/paw), menthol (1.2 μmol/paw), ASICS (2% acetic acid, pH 1.98) and bradykinin (10 μg/paw). The results showed that TRPV1, TRPA1, TRPM8, ASICS and bradykinin play a role in the antinociceptive effect of RipII. The results also showed that PKA is involved too. These data demonstrate that RipII has a low or not toxicity and produced an important antinociceptive effect through mechanisms that probably involve an interaction, at least in part, TRPV1, TRPA1, TRPM8, ASICS, bradykinin and PKA participate in the RipII's antinociceptive effect.
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Affiliation(s)
- Alyne Mara Rodrigues de Carvalho
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil.
| | - Leonardo Freire Vasconcelos
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Nayrton Flávio Moura Rocha
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Emiliano Ricardo Vasconcelos Rios
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Marília Leite Dias
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | | | - Danielle Macêdo Gaspar
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | | | | | - Francisca Cléa Florenço de Sousa
- Neuropsychopharmacology Laboratory, Drug Research and Development Center, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil.
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13
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Camargo CR, Caruso ÍP, Gutierrez SJC, Fossey MA, Filho JMB, Cornélio ML. Spectral and computational features of the binding between riparins and human serum albumin. Spectrochim Acta A Mol Biomol Spectrosc 2018; 190:81-88. [PMID: 28915468 DOI: 10.1016/j.saa.2017.08.068] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 08/15/2017] [Accepted: 08/31/2017] [Indexed: 06/07/2023]
Abstract
The green Brazilian bay leaf, a spice much prized in local cuisine (Aniba riparia, Lauraceae), contains chemical compounds presenting benzoyl-derivatives named riparins, which have anti-inflammatory, antimicrobial and anxiolytic properties. However, it is unclear what kind of interaction riparins perform with any molecular target. As a profitable target, human serum albumin (HSA) is one of the principal extracellular proteins, with an exceptional capacity to interact with several molecules, and it also plays a crucial role in the transport, distribution, and metabolism of a wide variety of endogenous and exogenous ligands. To outline the HSA-riparin interaction mechanism, spectroscopy and computational methods were synergistically applied. An evaluation through fluorescence spectroscopy showed that the emission, attributed to Trp 214, at 346 nm decreased with titrations of riparins. A static quenching mechanism was observed in the binding of riparins to HSA. Fluorescence experiments performed at 298, 308 and 318 K made it possible to conduct thermodynamic analysis indicating a spontaneous reaction in the complex formation (ΔG<0). The enthalpy-entropy balance experiment with a molecular modeling calculation revealed that hydrophobic, hydrogen bond and non-specific interactions are present for riparin I-III with HSA. The set of results from fractional fluorescence changes obtained through Schatchard was inconclusive in establishing what kind of cooperativity is present in the interaction. To shed light upon the HSA-riparins complex, Hill's approach was utilized to distinguish the index of affinity and the binding constant. A correspondence between the molecular structures of riparins, due to the presence of the hydroxyl group in the B-ring, with thermodynamic parameters and index of affinity were observed. Riparin III performs an intramolecular hydrogen bond, which affects the Hill coefficient and the binding constant. Therefore, the presence of hydroxyl groups is capable of modulating the interaction between riparins and HSA. Site marker competitive experiments indicated Site I as being the most suitable, and the molecular modeling tools reinforced the experimental results detailing the participation of residues.
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Affiliation(s)
- Cintia Ramos Camargo
- Departamento de Física, Instituto de Biociências, Letras e Ciências Exatas (IBILCE), UNESP, Rua Cristóvão Colombo 2255, CEP 15054-000, São José do Rio Preto, SP, Brazil
| | - Ícaro Putinhon Caruso
- Centro Multiusuário de Inovação Biomolecular (CMIB), Instituto de Biociências, Letras e Ciências Exatas (IBILCE), UNESP, Rua Cristóvão Colombo 2255, CEP 15054-000, São José do Rio Preto, SP, Brazil
| | | | - Marcelo Andres Fossey
- Departamento de Física, Instituto de Biociências, Letras e Ciências Exatas (IBILCE), UNESP, Rua Cristóvão Colombo 2255, CEP 15054-000, São José do Rio Preto, SP, Brazil; Centro Multiusuário de Inovação Biomolecular (CMIB), Instituto de Biociências, Letras e Ciências Exatas (IBILCE), UNESP, Rua Cristóvão Colombo 2255, CEP 15054-000, São José do Rio Preto, SP, Brazil
| | - José Maria Barbosa Filho
- Laboratório de Tecnologia Farmacêutica (LTF), Universidade Federal da Paraíba (UFPB), Cidade Universitária, CEP 58051-900 João Pessoa, PB, Brazil
| | - Marinônio Lopes Cornélio
- Departamento de Física, Instituto de Biociências, Letras e Ciências Exatas (IBILCE), UNESP, Rua Cristóvão Colombo 2255, CEP 15054-000, São José do Rio Preto, SP, Brazil; Centro Multiusuário de Inovação Biomolecular (CMIB), Instituto de Biociências, Letras e Ciências Exatas (IBILCE), UNESP, Rua Cristóvão Colombo 2255, CEP 15054-000, São José do Rio Preto, SP, Brazil.
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14
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Veras RC, Silva DF, Bezerra LS, de Assis VL, de Vasconcelos WP, Alustau MDC, de Albuquerque JGF, Furtado FF, Araújo IGDA, de Azevedo FDLAA, Ribeiro TP, Barbosa-Filho JM, Gutierrez SJC, Medeiros IA. N-Salicyloyltryptamine, an N-Benzoyltryptamine Analogue, Induces Vasorelaxation through Activation of the NO/sGC Pathway and Reduction of Calcium Influx. Molecules 2018; 23:molecules23020253. [PMID: 29382081 PMCID: PMC6017111 DOI: 10.3390/molecules23020253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 01/06/2018] [Accepted: 01/12/2018] [Indexed: 11/30/2022] Open
Abstract
Benzoyltryptamine analogues act as neuroprotective and spasmolytic agents on smooth muscles. In this study, we investigated the ability of N-salicyloyltryptamine (STP) to produce vasorelaxation and determined its underlying mechanisms of action. Isolated rat mesenteric arteries with and without functional endothelium were studied in an isometric contraction system in the presence or absence of pharmacological inhibitors. Amperometric experiments were used to measure the nitric oxide (NO) levels in CD31+ cells using flow cytometry. GH3 cells were used to measure Ca2+ currents using the whole cell patch clamp technique. STP caused endothelium-dependent and -independent relaxation in mesenteric rings. The endothelial-dependent relaxations in response to STP were markedly reduced by L-NAME (endothelial NO synthase—eNOS—inhibitor), jHydroxocobalamin (NO scavenger, 30 µM) and ODQ (soluble Guanylyl Cyclase—sGC—inhibitor, 10 µM), but were not affected by the inhibition of the formation of vasoactive prostanoids. These results were reinforced by the increased NO levels observed in the amperometric experiments with freshly dispersed CD31+ cells. The endothelium-independent effect appeared to involve the inhibition of voltage-gated Ca2+ channels, due to the inhibition of the concentration-response Ca2+ curves in depolarizing solution, the increased relaxation in rings that were pre-incubated with high extracellular KCl (80 mM), and the inhibition of macroscopic Ca2+ currents. The present findings show that the activation of the NO/sGC/cGMP pathway and the inhibition of gated-voltage Ca2+ channels are the mechanisms underlying the effect of STP on mesenteric arteries.
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Affiliation(s)
- Robson Cavalcante Veras
- Department of Pharmaceutical Sciences, Federal University of Paraíba (UFPB), João Pessoa 58059-900, Brazil; (I.G.d.A.A.); (J.M.B.-F); (I.A.M.)
- Postgraduate Program of Nutrition Science/CCS/Federal University of Paraíba (UFPB);
- Correspondence: ; Tel.: +55-83-3216-7347
| | - Darizy Flávia Silva
- Department of Biorregulation, Federal University of Bahia (UFBA), Av. Reitor Miguel Calmon, S/N, Vale do Canela, Salvador 40110-902, Brazil;
| | | | - Valéria Lopes de Assis
- Postgraduate Program of Natural Products and Bioactive Synthetics/CCS/Universidade Federal da Paraíba (UFPB), João Pessoa 58059-900, Brazil; (V.L.d.A.); (W.P.d.V.); (M.d.C.A.); (J.G.F.d.A.); (F.F.F.); (F.d.L.A.A.d.A.); (T.P.R.); (S.J.C.G.)
| | - Walma Pereira de Vasconcelos
- Postgraduate Program of Natural Products and Bioactive Synthetics/CCS/Universidade Federal da Paraíba (UFPB), João Pessoa 58059-900, Brazil; (V.L.d.A.); (W.P.d.V.); (M.d.C.A.); (J.G.F.d.A.); (F.F.F.); (F.d.L.A.A.d.A.); (T.P.R.); (S.J.C.G.)
| | - Maria do Carmo Alustau
- Postgraduate Program of Natural Products and Bioactive Synthetics/CCS/Universidade Federal da Paraíba (UFPB), João Pessoa 58059-900, Brazil; (V.L.d.A.); (W.P.d.V.); (M.d.C.A.); (J.G.F.d.A.); (F.F.F.); (F.d.L.A.A.d.A.); (T.P.R.); (S.J.C.G.)
| | - José George Ferreira de Albuquerque
- Postgraduate Program of Natural Products and Bioactive Synthetics/CCS/Universidade Federal da Paraíba (UFPB), João Pessoa 58059-900, Brazil; (V.L.d.A.); (W.P.d.V.); (M.d.C.A.); (J.G.F.d.A.); (F.F.F.); (F.d.L.A.A.d.A.); (T.P.R.); (S.J.C.G.)
| | - Fabíola Fialho Furtado
- Postgraduate Program of Natural Products and Bioactive Synthetics/CCS/Universidade Federal da Paraíba (UFPB), João Pessoa 58059-900, Brazil; (V.L.d.A.); (W.P.d.V.); (M.d.C.A.); (J.G.F.d.A.); (F.F.F.); (F.d.L.A.A.d.A.); (T.P.R.); (S.J.C.G.)
| | | | - Fátima de Lourdes Assunção Araújo de Azevedo
- Postgraduate Program of Natural Products and Bioactive Synthetics/CCS/Universidade Federal da Paraíba (UFPB), João Pessoa 58059-900, Brazil; (V.L.d.A.); (W.P.d.V.); (M.d.C.A.); (J.G.F.d.A.); (F.F.F.); (F.d.L.A.A.d.A.); (T.P.R.); (S.J.C.G.)
| | - Thais Porto Ribeiro
- Postgraduate Program of Natural Products and Bioactive Synthetics/CCS/Universidade Federal da Paraíba (UFPB), João Pessoa 58059-900, Brazil; (V.L.d.A.); (W.P.d.V.); (M.d.C.A.); (J.G.F.d.A.); (F.F.F.); (F.d.L.A.A.d.A.); (T.P.R.); (S.J.C.G.)
| | - José Maria Barbosa-Filho
- Department of Pharmaceutical Sciences, Federal University of Paraíba (UFPB), João Pessoa 58059-900, Brazil; (I.G.d.A.A.); (J.M.B.-F); (I.A.M.)
- Postgraduate Program of Natural Products and Bioactive Synthetics/CCS/Universidade Federal da Paraíba (UFPB), João Pessoa 58059-900, Brazil; (V.L.d.A.); (W.P.d.V.); (M.d.C.A.); (J.G.F.d.A.); (F.F.F.); (F.d.L.A.A.d.A.); (T.P.R.); (S.J.C.G.)
| | - Stanley Juan Chavez Gutierrez
- Postgraduate Program of Natural Products and Bioactive Synthetics/CCS/Universidade Federal da Paraíba (UFPB), João Pessoa 58059-900, Brazil; (V.L.d.A.); (W.P.d.V.); (M.d.C.A.); (J.G.F.d.A.); (F.F.F.); (F.d.L.A.A.d.A.); (T.P.R.); (S.J.C.G.)
| | - Isac Almeida Medeiros
- Department of Pharmaceutical Sciences, Federal University of Paraíba (UFPB), João Pessoa 58059-900, Brazil; (I.G.d.A.A.); (J.M.B.-F); (I.A.M.)
- Postgraduate Program of Natural Products and Bioactive Synthetics/CCS/Universidade Federal da Paraíba (UFPB), João Pessoa 58059-900, Brazil; (V.L.d.A.); (W.P.d.V.); (M.d.C.A.); (J.G.F.d.A.); (F.F.F.); (F.d.L.A.A.d.A.); (T.P.R.); (S.J.C.G.)
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Araújo ÉJFD, Silva OA, Rezende-Júnior LM, Sousa IJO, Araújo DYMLD, Carvalho RBFD, Pereira ST, Gutierrez SJC, Ferreira PMP, Lima FDCA. Synthesis, characterization and cytotoxic evaluation of inclusion complexes between Riparin A and β-cyclodextrin. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.04.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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16
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Costa LM, de Macedo EV, Oliveira FAA, Ferreira JHL, Gutierrez SJC, Peláez WJ, Lima FCA, de Siqueira Júnior JP, Coutinho HDM, Kaatz GW, de Freitas RM, Barreto HM. Inhibition of the NorA efflux pump of Staphylococcus aureus by synthetic riparins. J Appl Microbiol 2016; 121:1312-1322. [PMID: 27537678 DOI: 10.1111/jam.13258] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 08/12/2016] [Accepted: 08/15/2016] [Indexed: 01/30/2023]
Abstract
AIM The goal of this study was to increase knowledge about the antimicrobial activity of some synthetic Riparin-derived compounds, alone or in combination with fluoroquinolone antibiotics, against a strain of Staphylococcus aureus resistant to fluoroquinolone by way of overexpression of the NorA efflux pump. METHODS AND RESULTS Microdilution tests showed that Riparins A and B did not show any significant antibacterial activity against Staph. aureus strains. On the other hand, the intrinsic antibacterial activity increased with increasing lipophilicity of the compounds, in the following order: Riparin-D (MIC 256 μg ml-1 ; Log P 2·95) < Riparin-C (MIC 102 μg ml-1 ; Log P 3·22) < Riparin-E (MIC 16 μg ml-1 ; Log P 3·57). The addition of all riparins to growth media at subinhibitory concentrations caused an increase in the antibacterial activity of antibiotics against the NorA-overexpressing test strain. Riparin-B, which has two methoxyl groups at the phenethyl moiety, showed the best modulatory effect. CONCLUSIONS Riparin-E is a good anti-staphylococci agent, while Riparin-B functions as a NorA efflux pump inhibitor. SIGNIFICANCE AND IMPACT OF THE STUDY Our data suggest the possibility of using Riparin-B in combination with norfloxacin or ciprofloxacin for therapy of infections caused by multi-drug resistant Staph. aureus.
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Affiliation(s)
- L M Costa
- Laboratory for Research in Experimental Neurochemistry, Federal University of Piauí, Teresina (PI), Brazil
| | - E V de Macedo
- Laboratory for Research in Microbiology, Federal University of Piauí, Teresina (PI), Brazil
| | - F A A Oliveira
- Laboratory for Research in Microbiology, Federal University of Piauí, Teresina (PI), Brazil
| | - J H L Ferreira
- Laboratory for Research in Microbiology, Federal University of Piauí, Teresina (PI), Brazil
| | - S J C Gutierrez
- Laboratory for Research in Microbiology, Federal University of Piauí, Teresina (PI), Brazil
| | - W J Peláez
- INFIQC-CONICET, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba, Argentina
| | - F C A Lima
- Laboratory of Computational Quantum Chemistry and Drug Planning, State University of Piauí, Teresina (PI), Brazil
| | - J P de Siqueira Júnior
- Laboratory of Genetic of Microorganisms, Federal University of Paraiba, João Pessoa (PB), Brazil
| | - H D M Coutinho
- Laboratory of Microbiology and Molecular Biology, Regional University of Cariri, Crato (CE), Brazil
| | - G W Kaatz
- Department of Medicine, Division of Infectious Diseases, Wayne State University School of Medicine, Detroit, MI, USA
| | - R M de Freitas
- Laboratory for Research in Experimental Neurochemistry, Federal University of Piauí, Teresina (PI), Brazil
| | - H M Barreto
- Laboratory for Research in Microbiology, Federal University of Piauí, Teresina (PI), Brazil.
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17
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Santiago RF, de Brito TV, Dias JM, Dias GJ, da Cruz JS, Batista JA, Silva RO, Souza MHLP, de Albuquerque Ribeiro R, Gutierrez SJC, Freitas RM, Medeiros JVR, dos Reis Barbosa AL. Riparin B, a Synthetic Compound Analogue of Riparin, Inhibits the Systemic Inflammatory Response and Oxidative Stress in Mice. Inflammation 2015; 38:2203-15. [DOI: 10.1007/s10753-015-0203-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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18
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do Amaral JF, Silva MIG, de Aquino Neto MR, Moura BA, de Carvalho AMR, Vasconcelos PF, Barbosa Filho JM, Gutierrez SJC, Vasconcelos SMM, Macêdo DS, de Sousa FCF. Antidepressant-like effect ofbis-eugenol in the mice forced swimming test: evidence for the involvement of the monoaminergic system. Fundam Clin Pharmacol 2012; 27:471-82. [DOI: 10.1111/j.1472-8206.2012.01058.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 05/19/2012] [Accepted: 06/11/2012] [Indexed: 11/27/2022]
Affiliation(s)
- Jeferson Falcão do Amaral
- Department of Physiology and Pharmacology, Faculty of Medicine; Federal University of Ceará; Rua Cel. Nunes de Melo 1127; CEP: 60431-270; Fortaleza; Brazil
| | - Maria Izabel Gomes Silva
- Department of Physiology and Pharmacology, Faculty of Medicine; Federal University of Ceará; Rua Cel. Nunes de Melo 1127; CEP: 60431-270; Fortaleza; Brazil
| | - Manuel Rufino de Aquino Neto
- Department of Physiology and Pharmacology, Faculty of Medicine; Federal University of Ceará; Rua Cel. Nunes de Melo 1127; CEP: 60431-270; Fortaleza; Brazil
| | - Brinell Arcanjo Moura
- Department of Physiology and Pharmacology, Faculty of Medicine; Federal University of Ceará; Rua Cel. Nunes de Melo 1127; CEP: 60431-270; Fortaleza; Brazil
| | - Alyne Mara Rodrigues de Carvalho
- Department of Physiology and Pharmacology, Faculty of Medicine; Federal University of Ceará; Rua Cel. Nunes de Melo 1127; CEP: 60431-270; Fortaleza; Brazil
| | - Patrícia Freire Vasconcelos
- Department of Physiology and Pharmacology, Faculty of Medicine; Federal University of Ceará; Rua Cel. Nunes de Melo 1127; CEP: 60431-270; Fortaleza; Brazil
| | - José Maria Barbosa Filho
- Laboratory of Pharmaceutics Technology; Federal University of Paraíba; Cidade Universitária, Castelo Branco; CEP: 58051-900; João Pessoa - PB; Brazil
| | - Stanley Juan Chavez Gutierrez
- Laboratory of Pharmaceutics Technology; Federal University of Paraíba; Cidade Universitária, Castelo Branco; CEP: 58051-900; João Pessoa - PB; Brazil
| | - Silvânia Maria Mendes Vasconcelos
- Department of Physiology and Pharmacology, Faculty of Medicine; Federal University of Ceará; Rua Cel. Nunes de Melo 1127; CEP: 60431-270; Fortaleza; Brazil
| | - Danielle Silveira Macêdo
- Department of Physiology and Pharmacology, Faculty of Medicine; Federal University of Ceará; Rua Cel. Nunes de Melo 1127; CEP: 60431-270; Fortaleza; Brazil
| | - Francisca Cléa Florenço de Sousa
- Department of Physiology and Pharmacology, Faculty of Medicine; Federal University of Ceará; Rua Cel. Nunes de Melo 1127; CEP: 60431-270; Fortaleza; Brazil
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dos Santos SG, Queiroga KF, de Oliveira AMF, Tavares JF, Gutierrez SJC, Diniz MDFFM, Barbosa-Filho JM, da Silva MS. Blood matrix effects for male and female Wistar rats, in simultaneous HPLC-UV determination of riparin I and III from Aniba riparia (Nees) Mez. (Lauraceae). Talanta 2011; 86:233-40. [DOI: 10.1016/j.talanta.2011.09.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 09/04/2011] [Accepted: 09/05/2011] [Indexed: 11/30/2022]
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Melo CTV, de Carvalho AMR, Moura BA, Teixeira CPL, Vasconcelos LF, Feitosa ML, de Oliveira GV, Barbosa-Filho JM, Chavez Gutierrez SJ, de França Fonteles MM, Vasconcelos SMM, de Sousa FCF. Evidence for the involvement of the serotonergic, noradrenergic, and dopaminergic systems in the antidepressant-like action of riparin III obtained fromAniba riparia(Nees) Mez (Lauraceae) in mice. Fundam Clin Pharmacol 2011; 27:104-12. [DOI: 10.1111/j.1472-8206.2011.00968.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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de Sousa FCF, Leite CP, de Melo CTV, de Araújo FLO, Gutierrez SJC, Barbosa-Filho JM, Fonteles MMDF, de Vasconcelos SMM, de Barros Viana GS. Evaluation of Effects of N-(2-Hydroxybenzoyl) Tyramine (Riparin II) from Aniba riparia (NEES) MEZ (Lauracea) in Anxiety Models in Mice. Biol Pharm Bull 2007; 30:1212-6. [PMID: 17603155 DOI: 10.1248/bpb.30.1212] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In order to evaluate the effects produced by N-(2-hydroxybenzoyl) tyramine (riparin II) isolated from the unripe fruit of Aniba riparia (NEES) MEZ (Lauraceae) on the central nervous system, different behavioral tests were performed. Riparin II (rip II) was administered orally (p.o.) and intraperitoneally (i.p.) in male mice, at doses of 25, 50 and 75 mg/kg, and tested on elevated plus maze (EPM), open field, rota rod and hole board tests. The results revealed that rip II caused considered increase of the number of head dips in hole board test and increased the number of entries and the time of permanence in the open arms in plus maze test in both routes. No significant effect was evidenced on rota rod and open field test, except an increase observed in the number of rearing. These results showed that riparin II presents anxiolytic-like effects in the plus maze and hole board tests which are not influenced by the locomotor activity as detected in the open field test.
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Affiliation(s)
- Francisca Cléa Florenço de Sousa
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Rua Cel. Nunes de Melo, Fortaleza, Brazil.
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de Sousa FCF, Monteiro AP, de Melo CTV, de Oliveira GR, Vasconcelos SMM, de França Fonteles MM, Gutierrez SJC, Barbosa-Filho JM, Viana GSB. Antianxiety effects of riparin I fromAniba riparia (Nees) Mez (Lauraceae) in mice. Phytother Res 2005; 19:1005-8. [PMID: 16372363 DOI: 10.1002/ptr.1771] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This work presents the behavioral effects of riparin I (methyl ether of N-benzoyl tyramine) from unripe fruit of Aniba riparia (Lauraceae) on the elevated plus maze, open field, rota rod and hole board tests in mice. Riparin I was administered acutely by intraperitoneal (i.p.) and oral routes to male mice at doses of 25 and 50 mg/kg. The results showed that riparin I (25 and 50 mg/kg, i.p. and per os) increased the number of entries and the time of permanence in the open arms in the plus maze test. Similarly, in the hole board test, riparin I in both routes increased the number of head dips. Riparin I with both doses and routes had no effects on spontaneous motor activity in mice or in the rota rod test, but decreased the number of groomings. These results showed that riparin I by both administration routes has effects on the central nervous system with antianxiety effects on the plus maze and hole board tests. The substance is devoid of myorelaxant effects.
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Sousa FCF, Melo CTV, Monteiro AP, Lima VTM, Gutierrez SJC, Pereira BA, Barbosa-Filho JM, Vasconcelos SMM, Fonteles MF, Viana GSB. Antianxiety and antidepressant effects of riparin III from Aniba riparia (Nees) Mez (Lauraceae) in mice. Pharmacol Biochem Behav 2004; 78:27-33. [PMID: 15159131 DOI: 10.1016/j.pbb.2004.01.019] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2003] [Revised: 08/27/2003] [Accepted: 01/23/2004] [Indexed: 10/26/2022]
Abstract
This work presents behavioral effects of methyl ethers of N-(2,6-dihydroxybenzoyl) tyramine (riparin III) isolated from the unripe fruit of Aniba riparia on the open field, elevated plus maze (EPM), rotarod, hole board, barbiturate-induced sleeping time, tail suspension and forced swimming tests in mice. Riparin III was administered intraperitoneally to male mice at single doses of 25 and 50 mg/kg. The results showed that riparin III with both doses had no effects on spontaneous motor activity in mice or in the rotarod test, but decreased the number of grooming and rearing. At the dose of 50 mg/kg, riparin III increased the number of entries in the open arms of the EPM test as compared with control. Similarly, in the hole-board test, both doses increased the number of head dips. There was a reduction on the sleeping latency with both doses and a prolongation of the pentobarbital-induced sleeping time with the dose of 25 mg/kg. In the tail suspension test, similar to imipramine (30 mg/kg), riparin III at the dose of 50 mg/kg presented a reduction in the immobility time. In the forced swimming test, both doses of riparin III decreased the immobility time. These results showed that riparin III potentiated the barbiturate-induced sleeping time and presented antidepressant- and anxiolytic-like effects.
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Affiliation(s)
- F C F Sousa
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Rua Cel. Nunes de Melo 1127, 60431-270, Fortaleza, Brazil.
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