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Timbe PPR, de Souza da Motta A, Stincone P, Pinilla CMB, Brandelli A. Antimicrobial activity of Baccharis dracunculifolia DC and its synergistic interaction with nisin against food-related bacteria. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2021; 58:3010-3018. [PMID: 34294963 DOI: 10.1007/s13197-020-04804-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/08/2020] [Accepted: 09/15/2020] [Indexed: 11/30/2022]
Abstract
The antimicrobial activities of Baccharis dracunculifolia DC essential oil (EO) and hydroalcoholic extract (HE) were evaluated. The EO showed broad antimicrobial activity and its synergistic combination with nisin was tested. Major components of EO were nerolidol, beta-pinene and D-limonene, while artepillin C, rutin and cafeic acid were major phenolics of HE. EO and HE were tested by agar diffusion assay against several strains of bacteria and yeasts, and mixed cultures of bacterial strains. The EO presented the largest spectrum of antimicrobial activity inhibiting all Gram-positive bacteria tested. Yeasts were not inhibited. The effect of EO against mixtures of sensitive and non-sensitive bacteria was tested on milk agar, being the inhibitory effect only observed on mixtures containing susceptible strains. The combination of EO and nisin at ½ MIC was evaluated on the growth curve of Staphylococcus aureus, Bacillus cereus, Listeria monocytogenes and Salmonella Enteritidis during 24 h at 37 °C. The combination EO-nisin was effective and no viable counts of B. cereus, L. monocytogenes and S. Enteritidis was observed, while the individual antimicrobials caused no inhibition. The counts of S. aureus were about 4 log CFU/mL lower in comparison with EO or nisin alone. B. dracunculifolia DC may be a potential source of natural antimicrobials, and its synergistic effect with nisin would reduce the working concentration, minimizing the organoleptic effects associated with this plant antimicrobial.
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Affiliation(s)
- Palmira Penina Raúl Timbe
- Laboratório de Bioquímica e Microbiologia Aplicada, Departamento de Ciência de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970 Brazil
| | - Amanda de Souza da Motta
- Departamento de Microbiologia, Imunologia e Parasitologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, 90035-190 Brazil
| | - Paolo Stincone
- Laboratório de Bioquímica e Microbiologia Aplicada, Departamento de Ciência de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970 Brazil
| | - Cristian Mauricio Barreto Pinilla
- Laboratório de Bioquímica e Microbiologia Aplicada, Departamento de Ciência de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970 Brazil
| | - Adriano Brandelli
- Laboratório de Bioquímica e Microbiologia Aplicada, Departamento de Ciência de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, 91501-970 Brazil
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Gierlikowska B, Stachura A, Gierlikowski W, Demkow U. Phagocytosis, Degranulation and Extracellular Traps Release by Neutrophils-The Current Knowledge, Pharmacological Modulation and Future Prospects. Front Pharmacol 2021; 12:666732. [PMID: 34017259 PMCID: PMC8129565 DOI: 10.3389/fphar.2021.666732] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/19/2021] [Indexed: 12/15/2022] Open
Abstract
Neutrophils are crucial elements of innate immune system, which assure host defense via a range of effector functions, such as phagocytosis, degranulation, and NET formation. The latest literature clearly indicates that modulation of effector functions of neutrophils may affect the treatment efficacy. Pharmacological modulation may affect molecular mechanisms activating or suppressing phagocytosis, degranulation or NET formation. In this review, we describe the role of neutrophils in physiology and in the course of bacterial and viral infections, illustrating the versatility and plasticity of those cells. This review also focus on the action of plant extracts, plant-derived compounds and synthetic drugs on effector functions of neutrophils. These recent advances in the knowledge can help to devise novel therapeutic approaches via pharmacological modulation of the described processes.
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Affiliation(s)
- Barbara Gierlikowska
- Department of Laboratory Diagnostics and Clinical Immunology of Developmental Age, Medical University of Warsaw, Warsaw, Poland
| | - Albert Stachura
- Department of Methodology, Centre for Preclinical Research, Medical University of Warsaw, Warsaw, Poland.,Doctoral School, Medical University of Warsaw, Warsaw, Poland
| | - Wojciech Gierlikowski
- Department of Internal Medicine and Endocrinology, Medical University of Warsaw, Warsaw, Poland
| | - Urszula Demkow
- Department of Laboratory Diagnostics and Clinical Immunology of Developmental Age, Medical University of Warsaw, Warsaw, Poland
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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. JOURNAL OF ETHNOPHARMACOLOGY 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] [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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Santos CHMD, Cavasana AL, Moreira DDL, Dourado DM, Guimarães FDS, Barros FHR, Campos GCOD, Leme GAL, Silva LDMD, Wahl LM, Gutterres NBDA, Matias R, Câmara SJF, Santos SEDO. Treatment of anal fistula with Baccharis dracunculifolia extract. Experimental study in rats. ACTA ACUST UNITED AC 2020; 46:e20192297. [PMID: 31967191 DOI: 10.1590/0100-6991e-20192297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 08/10/2019] [Indexed: 11/21/2022]
Abstract
OBJECTIVE to evaluate the efficacy of Baccharis dracunculifolia extract in the treatment of anal fistulas in rats. METHODS twenty male Wistar rats were submitted to anal fistula and, after 30 days, were divided into three groups: Control Group, with five animals; Carbopol Group, with five animals; and Baccharis dracunculifolia Group, with ten animals. In the Control Group, no treatment was performed. In the Carbopol Group, a daily infusion of Carbopol was performed for 30 days. In the Baccharis dracunculifolia Group, a daily infusion of Carbopol plus Baccharis dracunculifolia extract was performed for 30 days. Specimens were taken for histological analysis after euthanasia. RESULTS there was no complete closure of the fistulous tract in any of the animals. The mean area of the remaining tract was of 847.2µm2, 565.6µm2 and 372.7µm2, in the Control Group, Carbopol Group, and Baccharis dracunculifolia Group, respectively, (p=0.001). The mean of the inflammatory process score was of 2.4, 2.4, and 2.1, in the Control Group, Carbopol Group, and Baccharis dracunculifolia Group, respectively, (p=0.285), while the mean values of vascular congestion were of 1.6, 1.4, and 1.1, in the Control Group, Carbopol Group, and Baccharis dracunculifolia Group, respectively, (p=0.031). CONCLUSION Baccharis dracunculifolia extract was able to reduce the lumen of the fistulous tracts and the degree of vascular congestion, without, however, reducing the local inflammatory process or totally closing the fistulous tracts.
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Affiliation(s)
- Carlos Henrique Marques Dos Santos
- Universidade Anhanguera (Uniderp), Curso de Medicina, Campo Grande, MS, Brasil.,Universidade Federal de Mato Grosso do Sul, Faculdade de Medicina, Campo Grande, MS, Brasil
| | | | - Davyson de Lima Moreira
- Fundação Oswaldo Cruz, Instituto de Tecnologia em Fármacos, Departamento de Produtos Naturais, Rio de Janeiro, RJ, Brasil
| | | | | | | | | | | | | | - Lucas Marques Wahl
- Universidade Anhanguera (Uniderp), Curso de Medicina, Campo Grande, MS, Brasil
| | | | - Rosemary Matias
- Universidade Anhanguera (Uniderp), Curso de Medicina, Campo Grande, MS, Brasil
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