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de Freitas Rocha J, de Castro Viana L, Filho LCPA, de Almeida TS, Neto JJL, Neto VV, Tabosa PMS, Nunes-Pinheiro DCS, Girão-Carmona VCC, Carvalho AFU, Mota EF. In vitro anti-inflammatory activity and ameliorative effects on gastric ulcers of Licania rigida benth seed extract. Inflammopharmacology 2023; 31:2631-2640. [PMID: 37420144 DOI: 10.1007/s10787-023-01283-0] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 06/15/2023] [Indexed: 07/09/2023]
Abstract
Licania rigida Benth., a Brazilian endemic plant, has been traditionally used for treating inflammation and stomach pain. This work investigates the anti-inflammatory and gastroprotective activities of the ethanolic extract from L. rigida seeds (EELr) by in vitro and in vivo methods. The phytochemical profile was determined and the in vitro antioxidant activity was investigated by radical scavenging and thiobarbituric acid reactive substances methods. The ovalbumin denaturation method was used with sodium diclofenac as standard for the in vitro anti-inflammatory activity assessment. Acetylsalicylic acid was used to induce gastric ulcers in male mice and then to evaluate the preventive and therapeutic gastroprotective effect of EELr, using omeprazole as the reference drug. The extract exhibited relevant amount of phenolic compounds and flavonoids, in particular, demonstrating in vitro antioxidant capacity. EELr was able to inhibit almost 60% of ovalbumin denaturation at a concentration considered low. It also prevented the decrease of biochemical markers for oxidative stress such as superoxide dismutase (SOD) and reduced glutathione (GSH) in the stomach and SOD and catalase (CAT) in the liver. EELr also significantly decreased the number of lesions as well as reduced the ulcerated area when used as therapy. The observed effect may be due to its phenolic compounds, such as chlorogenic acid, caffeic acid and tannins, as previously reported. EELr is a potential source of compounds with anti-inflammatory activity, protects the liver from oxidative damage and improves healing of aspirin-induced ulcers. This work contributes to the knowledge of L. rigida species.
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Affiliation(s)
| | | | | | - Thiago Silva de Almeida
- Biochemistry and Molecular Biology Department, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil
- Laboratory of Phytochemistry and Process Integration, Northeast Strategic Technologies Center-CETENE, Recife, Pernambuco, 50740-545, Brazil
| | - José Joaquim Lopes Neto
- Biochemistry and Molecular Biology Department, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil
- Pharmacy Course, Estacio São Luís University Center, São Luís, Maranhão, 65020-250, Brazil
| | - Veríssimo Vieira Neto
- Biochemistry and Molecular Biology Department, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil
| | - Pedro Matheus Sousa Tabosa
- Biochemistry and Molecular Biology Department, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil
| | | | | | | | - Erika Freitas Mota
- Biology Department, Federal University of Ceara, Fortaleza, CE, 60440-900, Brazil.
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Gonçalves ÍFS, Gomes CDS, Almeida Filho LCP, Souza JADCR, Rocha BAM, de Souza PFN, de Freitas Júnior ACV, Carvalho AFU, Farias D. An innovative insecticidal approach based on plant protease inhibitor and Bt protoxins inhibits trypsin-like activity in zebrafish. Comp Biochem Physiol C Toxicol Pharmacol 2023; 267:109576. [PMID: 36813018 DOI: 10.1016/j.cbpc.2023.109576] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 01/13/2023] [Accepted: 02/16/2023] [Indexed: 02/23/2023]
Abstract
The Leucaena leucocephala trypsin inhibitor (LTI) + Bacillus thuringiensis (Bt) protoxins mix has been proposed as a novel larvicide agent in order to control the vector mosquito of dengue virus, Aedes aegypti, in their aquatic breeding sites. However, use of this insecticide formulation has raised concerns about its impacts on aquatic biota. In this context, this work aimed to assess the effects of LTI and Bt protoxins, separately or in combination, in zebrafish, in regard to the evaluation of toxicity at early life stages and to the presence of LTI inhibitory effects on intestinal proteases of this fish. Results showed that LTI and Bt concentrations (250 mg/L, and 0.13 mg/L, respectively), and LTI + Bt mix (250 mg/L + 0.13 mg/L) - 10 times superior to those with insecticidal action - did not cause death nor did it induce morphological changes during embryonic and larval development (3 to 144 h post-fertilization) of zebrafish. Molecular docking analyses highlighted a possible interaction between LTI and zebrafish trypsin, especially through hydrophobic interactions. In concentrations near to those with larvicidal action, LTI (0.1 mg/mL) was able to inhibit in vitro intestinal extracts of trypsin in female and male fish by 83 % and 85 %, respectively, while LTI + Bt mix promoted trypsin inhibition of 69 % in female and 65 % in male ones. These data show that the larvicidal mix can potentially promote deleterious effects to nutrition and survival in non-target aquatic organisms, especially those with trypsin-like dependent protein digestion.
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Affiliation(s)
- Íris Flávia Sousa Gonçalves
- Post-Graduation Program in Biochemistry, Department of Biochemistry and Molecular Biology, Building 907, Campus Pici, Federal University of Ceará, 60455-970 Fortaleza, Brazil; Department of Molecular Biology, Federal University of Paraíba, 58051-900 João Pessoa, Brazil
| | - Cleyton de Sousa Gomes
- Department of Molecular Biology, Federal University of Paraíba, 58051-900 João Pessoa, Brazil
| | | | | | - Bruno Anderson Matias Rocha
- Post-Graduation Program in Biochemistry, Department of Biochemistry and Molecular Biology, Building 907, Campus Pici, Federal University of Ceará, 60455-970 Fortaleza, Brazil
| | - Pedro Filho Noronha de Souza
- Post-Graduation Program in Biochemistry, Department of Biochemistry and Molecular Biology, Building 907, Campus Pici, Federal University of Ceará, 60455-970 Fortaleza, Brazil
| | | | - Ana Fontenele Urano Carvalho
- Post-Graduation Program in Biochemistry, Department of Biochemistry and Molecular Biology, Building 907, Campus Pici, Federal University of Ceará, 60455-970 Fortaleza, Brazil; Department of Biology, Building 909, Campus Pici, Federal University of Ceará, 60455-970 Fortaleza, Brazil
| | - Davi Farias
- Post-Graduation Program in Biochemistry, Department of Biochemistry and Molecular Biology, Building 907, Campus Pici, Federal University of Ceará, 60455-970 Fortaleza, Brazil; Department of Molecular Biology, Federal University of Paraíba, 58051-900 João Pessoa, Brazil.
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Almeida TSD, Lopes Neto JJ, Almeida Filho LCP, Marques DM, Gonçalves de Lima RDC, Nunes RGDS, Silva JRDL, Kamdem JP, Almeida LLD, Souza JADCR, Farias DF, Carvalho AFU. Toxicological assessment of a bioactive extract from Triplaris gardneriana Wedd. seeds using alternative models. Drug Chem Toxicol 2020; 45:1687-1697. [PMID: 33334193 DOI: 10.1080/01480545.2020.1856863] [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] [Indexed: 10/22/2022]
Abstract
The Triplaris gardneriana Wedd. seeds extract has great therapeutic potential due to numerous biological activities such as antioxidant, antibacterial and anti-inflammatory, which are associated with phenolic content. Although this herbal preparation has shown many benefits, recently their toxicity profile has begun to be explored. In this present study, the toxic effects of T. gardneriana seeds ethanolic extract (EETg) on biological systems of different taxonomical groups and levels of complexity (from cell culture to lower vertebrates) were assessed, through a variety of viability and toxicological assays. It was found that EETg did not impair the Saccharomyces cerevisiae growth at the highest tested concentration (200 µg/mL), and no toxicant evidence was observed in Aedes aegypti larvae or in Drosophila melanogaster adult stage. Contrarily, the extract reduced the viability of undifferentiated Caco-2 cells (250 µg/mL, 40% of viable cells), but did not affect differentiated ones. The embryotoxicity in Danio rerio model showed a LC50 of 7.41 mg/L (95% confidence interval, 4.78 - 11.49 mg/L). EETg did not show signs of toxicity in the majority of the models used, but lethality and malformations in zebrafish embryos occurred. Further analyses are needed to better understand the selective toxicity mechanism of EETg on zebrafish, as well as whether the toxic effects happen in higher vertebrates.
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Affiliation(s)
- Thiago Silva de Almeida
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, Brazil
| | - José Joaquim Lopes Neto
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, Brazil
| | | | | | | | | | | | - Jean Paul Kamdem
- Department of Biological Sciences, Regional University of Cariri, Crato, Brazil
| | | | | | - Davi Felipe Farias
- Department of Molecular Biology, Federal University of Paraiba, João Pessoa, Brazil
| | - Ana Fontenele Urano Carvalho
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, Fortaleza, Brazil.,Department of Biology, Federal University of Ceara, Fortaleza, Brazil
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Lopes Neto JJ, Silva de Almeida T, Almeida Filho LCP, Rocha TM, Nogara PA, Nogara KF, Teixeira da Rocha JB, Almeida Moreira Leal LK, Urano Carvalho AF. Triplaris gardneriana seeds extract exhibits in vitro anti-inflammatory properties in human neutrophils after oxidative treatment. J Ethnopharmacol 2020; 250:112474. [PMID: 31836515 DOI: 10.1016/j.jep.2019.112474] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 09/09/2019] [Revised: 11/22/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Triplaris gardneriana Wedd. (Polygonaceae family) is a plant species from Brazilian semiarid region which is used in local traditional medicine for the treatment of inflammatory conditions such as hemorrhoids. AIM OF THE STUDY In this study, the in vitro anti-inflammatory activity of different concentrations of ethanolic extract from T. gardneriana seeds (EETg) was performed in order to contribute to the knowledge about etnomedicinal use of this plant species. MATERIALS AND METHODS The anti-inflammatory properties were evaluated through different approaches, such as in vitro protein anti-denaturation test, scavenging of reactive oxygen species (ROS) and myeloperoxidase (MPO) inhibition in human neutrophils activated by phorbol-12-myristate-13-acetate (PMA). Besides that, molecular docking was performed to provide new insights about the interaction between the major phenolic components in the plant extract and MPO. RESULTS EETg was characterized showing a total phenol content of 153.5 ± 6.3 μg gallic acid equivalent/mg extract, ability to remove hydrogen peroxide (H2O2) in a concentration-dependent manner and had a spectroscopic profile which suggests the presence of hydroxyl groups. EETg was able to prevent protein denaturation ranging from 40.17 to 75.09%. The extract, at 10 and 20 μg/mL, was able to modulate neutrophils pro-inflammatory functions, such as degranulation and burst respiratory. In both assays, the EETg had anti-inflammatory effect comparable to nonsteroidal anti-inflammatory drugs. Among the main phenolic compounds of EETg, quercitrin, quercetin and catechin showed the highest binding affinity in silico to MPO. CONCLUSION This study demonstrated, for the first time, that the anti-inflammatory effect of T. gardneriana seeds occurs due to its modulatory effect on human neutrophil degranulation and free-radical scavenging activity.
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Affiliation(s)
- José Joaquim Lopes Neto
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, 60020-181, Fortaleza, CE, Brazil
| | - Thiago Silva de Almeida
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, 60020-181, Fortaleza, CE, Brazil
| | | | - Talita Magalhães Rocha
- Pharmaceutical and Cosmetics Studies Center (CEFAC), Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, 60430-370, Fortaleza, CE, Brazil
| | - Pablo Andrei Nogara
- Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, 97105-900, Santa Maria, RS, Brazil
| | - Karise Fernanda Nogara
- Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, 97105-900, Santa Maria, RS, Brazil
| | | | - Luzia Kalyne Almeida Moreira Leal
- Pharmaceutical and Cosmetics Studies Center (CEFAC), Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, 60430-370, Fortaleza, CE, Brazil
| | - Ana Fontenele Urano Carvalho
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, 60020-181, Fortaleza, CE, Brazil; Department of Biology, Federal University of Ceará, 60440-900, Fortaleza, CE, Brazil.
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Sá CA, Vieira LR, Pereira Almeida Filho LC, Real-Guerra R, Lopes FC, Souza TM, Vasconcelos IM, Staniscuaski F, Carlini CR, Urano Carvalho AF, Farias DF. Risk assessment of the antifungal and insecticidal peptide Jaburetox and its parental protein the Jack bean (Canavalia ensiformis) urease. Food Chem Toxicol 2019; 136:110977. [PMID: 31759068 DOI: 10.1016/j.fct.2019.110977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 07/24/2019] [Revised: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 01/09/2023]
Abstract
Jaburetox (JBTX) is an insecticidal and antifungal peptide derived from jack bean (Canavalia ensiformis) urease that has been considered a candidate for developing genetically modified crops. This study aimed to perform the risk assessment of the peptide JBTX following the general recommendations of the two-tiered, weight-of-evidence approach proposed by International Life Sciences Institute. The urease of C. ensiformis (JBU) and its isoform JBURE IIb (the JBTX parental protein) were assessed. The history of safe use revealed no hazard reports for the studied proteins. The available information shows that JBTX possesses selective activity against insects and fungi. JBTX and JBU primary amino acids sequences showed no relevant similarity to toxic, antinutritional or allergenic proteins. Additionally, JBTX and JBU were susceptible to in vitro digestibility, and JBU was also susceptible to heat treatment. The results did not identify potential risks of adverse effects and reactions associated to JBTX. However, further allergen (e.g. serum IgE binding test) and toxicity (e.g. rodent toxicity tests) experimentation can be done to gather additional safety information on JBTX, and to meet regulatory inquiries for commercial approval of transgenic cultivars expressing this peptide.
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Affiliation(s)
- Chayenne Alves Sá
- Graduate Program in Biochemistry, Federal University of Ceará, 60440-900, Fortaleza, CE, Brazil
| | - Leonardo Rogério Vieira
- Graduate Program in Biochemistry, Federal University of Ceará, 60440-900, Fortaleza, CE, Brazil
| | | | - Rafael Real-Guerra
- Center for Coastal, Limnological and Marine Studies (CECLIMAR), Federal University of Rio Grande do Sul, 95625-000, Imbé, RS, Brazil; Interdisciplinary Department, Federal University of Rio Grande do Sul, 95625-000, Tramandaí, RS, Brazil
| | - Fernanda Cortez Lopes
- Center of Biotechnology and Graduate Program in Cellular and Molecular Biology, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9500, Building 43431, 91501-970, Porto Alegre, Brazil
| | - Terezinha Maria Souza
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, 6229 ER, the Netherlands
| | - Ilka Maria Vasconcelos
- Graduate Program in Biochemistry, Federal University of Ceará, 60440-900, Fortaleza, CE, Brazil
| | - Fernanda Staniscuaski
- Center of Biotechnology and Graduate Program in Cellular and Molecular Biology, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9500, Building 43431, 91501-970, Porto Alegre, Brazil; Department of Molecular Biology and Biotechnology, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9500, Building 43431, 91501-970, Porto Alegre, Brazil
| | - Célia Regina Carlini
- Center of Biotechnology and Graduate Program in Cellular and Molecular Biology, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9500, Building 43431, 91501-970, Porto Alegre, Brazil; Brain Institute (Instituto do Cérebro-INSCER), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Av. Ipiranga 6690, Building 63, CEP 90610-000, Porto Alegre, Brazil
| | - Ana Fontenele Urano Carvalho
- Graduate Program in Biochemistry, Federal University of Ceará, 60440-900, Fortaleza, CE, Brazil; Department of Biology, Federal University of Ceará, 60440-900, Fortaleza, CE, Brazil
| | - Davi Felipe Farias
- Graduate Program in Biochemistry, Federal University of Ceará, 60440-900, Fortaleza, CE, Brazil; Laboratory for Risk Assesment of Novel Technologies - LabRisk, Department of Molecular Biology, Federal University of Paraíba, 58051-900, João Pessoa, Brazil.
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