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Dos Santos JCC, Rebouças CDSM, Oliveira LF, Cardoso FDS, Nascimento TDS, Oliveira AV, Lima MPP, de Andrade GM, de Castro Brito GA, de Barros Viana GS. The role of gut-brain axis in a rotenone-induced rat model of Parkinson's disease. Neurobiol Aging 2023; 132:185-197. [PMID: 37837734 DOI: 10.1016/j.neurobiolaging.2023.07.005] [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] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/06/2023] [Accepted: 07/06/2023] [Indexed: 10/16/2023]
Abstract
Parkinson's disease (PD) is a widespread neurodegenerative condition affecting millions globally. This investigation centered on the gut-brain axis in a rotenone-induced PD rat model. Researchers monitored behavioral shifts, histological modifications, neurodegeneration, and inflammation markers throughout the rats' bodies. Results revealed that rotenone-treated rats displayed reduced exploration (p = 0.004) and motor coordination (p < 0.001), accompanied by decreased Nissl staining and increased alpha-synuclein immunoreactivity in the striatum (p = 0.009). Additionally, these rats exhibited weight loss (T3, mean = 291.9 ± 23.67; T19, mean = 317.5 ± 17.53; p < 0.05) and substantial intestinal histological alterations, such as shortened villi, crypt architecture loss, and inflammation. In various regions, researchers noted elevated immunoreactivity to ionized binding adapter molecule (IBA)-1 (p < 0.05) and reduced immunoreactivity to glial fibrillary acidic protein (p < 0.05) and S100B (p < 0.001), indicating altered glial cell activity. Overall, these findings imply that PD is influenced by gut-brain axis changes and may originate in the intestine, impacting bidirectional gut-brain communication.
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Affiliation(s)
- Júlio César Claudino Dos Santos
- Medical School of the Christus University Center-UNICHRISTUS, Fortaleza, CE, Brazil; Graduate Program in Morphofunctional Sciences, Federal University of Ceará-UFC, Fortaleza, CE, Brazil.
| | - Conceição da Silva Martins Rebouças
- Graduate Program in Morphofunctional Sciences, Federal University of Ceará-UFC, Fortaleza, CE, Brazil; Morphology Department of the Federal University of Ceará-UFC, Fortaleza, CE, Brazil
| | | | - Fabrizio Dos Santos Cardoso
- Laboratory of Neuroanatomy and Neuropsychobiology, Department of Pharmacology, School of Medicine of Ribeirão Preto of the University of São Paulo (FMRP-USP), Ribeirão Preto, SP, Brazil; Hospital do Câncer de Muriaé, Fundação Cristiano Varella (FCV), Muriaé, MG, Brazil
| | | | - Alfaete Vieira Oliveira
- Physiology and Pharmacology Department of the Federal University of Ceará-UFC, Fortaleza, CE, Brazil
| | | | - Geanne Matos de Andrade
- Physiology and Pharmacology Department of the Federal University of Ceará-UFC, Fortaleza, CE, Brazil
| | - Gerly Anne de Castro Brito
- Morphology Department of the Federal University of Ceará-UFC, Fortaleza, CE, Brazil; Physiology and Pharmacology Department of the Federal University of Ceará-UFC, Fortaleza, CE, Brazil
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Claudino Dos Santos JC, Oliveira LF, Noleto FM, Gusmão CTP, Brito GADC, Viana GSDB. Gut-microbiome-brain axis: the crosstalk between the vagus nerve, alpha-synuclein and the brain in Parkinson's disease. Neural Regen Res 2023; 18:2611-2614. [PMID: 37449597 DOI: 10.4103/1673-5374.373673] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [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: 07/18/2023] Open
Abstract
This critical review of the literature shows that there is a close link between the microbiome, the gut, and the brain in Parkinson's disease. The vagus nerve, the main component of the parasympathetic nervous system, is involved in the regulation of immune response, digestion, heart rate, and control of mood. It can detect microbiota metabolites through its afferents, transferring this gut information to the central nervous system. Preclinical and clinical studies have shown the important role played by the gut microbiome and gut-related factors in disease development and progression, as well as treatment responses. These findings suggest that the gut microbiome may be a valuable target for new therapeutic strategies for Parkinson's disease. More studies are needed to better understand the underlying biology and how this axis can be modulated for the patient's benefit.
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Affiliation(s)
- Júlio César Claudino Dos Santos
- Christus University Center - UNICHRISTUS, Fortaleza; Postgraduate Program in Morphofunctional Sciences, Federal University of Ceará - UFC, Fortaleza, CE, Brazil
| | | | | | | | - Gerly Anne de Castro Brito
- Postgraduate Program in Morphofunctional Sciences, Federal University of Ceará - UFC; Physiology and Pharmacology Department of the Federal University of Ceará - UFC, Fortaleza, CE, Brazil, Fortaleza
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Barbosa MLL, Albano MO, Martins CDS, Warren CA, Brito GADC. Role of probiotics in preventing Clostridioides difficile infection in older adults: an integrative review. Front Med (Lausanne) 2023; 10:1219225. [PMID: 37636573 PMCID: PMC10450140 DOI: 10.3389/fmed.2023.1219225] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 07/21/2023] [Indexed: 08/29/2023] Open
Abstract
Clostridioides difficile infection (CDI) is the leading cause of healthcare-associated diarrhea. This infection can particularly affect older adults, the most susceptible to CDI. Currently, the standard therapeutic measure is antibiotic therapy, which in turn increases the risk of recurrence of the infection by its collateral damage to the patient's microbiota. Probiotics are live microorganisms capable of maintaining balance in the intestinal microbiota. This study aims to perform an integrative review of the protective benefit of probiotics in CDI and diarrhea associated with C. difficile. The PubMed, Scopus, and Web of Science databases, the 10-year time cutoff, and the Prism Flow diagram were used for data collection. We observed no consensus among the studies; however, three of the seven evaluated studies demonstrated that the use of probiotics in older adults could contribute to reducing the incidence of hospital-onset CDI. We also found that the studies evaluated a wide variety of microorganisms, particularly Saccharomyces boulardii, associated with beneficial effects. More research is needed to understand the successful use of probiotics in the prevention of CDI in hospitalized older adults receiving antibiotics.
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Affiliation(s)
| | | | | | | | - Gerly Anne de Castro Brito
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, United States
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Claudino Dos Santos JC, Lima MPP, Brito GADC, Viana GSDB. Role of enteric glia and microbiota-gut-brain axis in parkinson disease pathogenesis. Ageing Res Rev 2023; 84:101812. [PMID: 36455790 DOI: 10.1016/j.arr.2022.101812] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [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: 11/08/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 11/30/2022]
Abstract
The microbiota-gut-brain axis or simple gut-brain axis (GBA) is a complex and interactive bidirectional communication network linking the gut to the brain. Alterations in the composition of the gut microbiome have been linked to GBA dysfunction, central nervous system (CNS) inflammation, and dopaminergic degeneration, as those occurring in Parkinson's disease (PD). Besides inflammation, the activation of brain microglia is known to play a central role in the damage of dopaminergic neurons. Inflammation is attributed to the toxic effect of aggregated α-synuclein, in the brain of PD patients. It has been suggested that the α-synuclein misfolding might begin in the gut and spread "prion-like", via the vagus nerve into the lower brainstem and ultimately to the midbrain, known as the Braak hypothesis. In this review, we discuss how the microbiota-gut-brain axis and environmental influences interact with the immune system to promote a pro-inflammatory state that is involved in the initiation and progression of misfolded α-synuclein proteins and the beginning of the early non-motor symptoms of PD. Furthermore, we describe a speculative bidirectional model that explains how the enteric glia is involved in the initiation and spreading of inflammation, epithelial barrier disruption, and α-synuclein misfolding, finally reaching the central nervous system and contributing to neuroinflammatory processes involved with the initial non-motor symptoms of PD.
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Affiliation(s)
- Júlio César Claudino Dos Santos
- Medical School of the Christus University Center - UNICHRISTUS, Fortaleza, CE, Brazil; Graduate Program in Morphofunctional Sciences, Federal University of Ceará - UFC, Fortaleza, CE, Brazil.
| | | | - Gerly Anne de Castro Brito
- Physiology and Pharmacology Department of the Federal University of Ceará - UFC, Fortaleza, CE, Brazil; Morphology Department of the Federal University of Ceará - UFC, Fortaleza, CE, Brazil
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de Siqueira EA, Magalhães EP, de Menezes RRPPB, Sampaio TL, Lima DB, da Silva Martins C, Neves KRT, de Castro Brito GA, Martins AMC, de Barros Viana GS. Vitamin D3 actions on astrocyte cells: A target for therapeutic strategy in Parkinson's disease? Neurosci Lett 2023; 793:136997. [PMID: 36470505 DOI: 10.1016/j.neulet.2022.136997] [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: 09/24/2022] [Accepted: 11/28/2022] [Indexed: 12/04/2022]
Abstract
Parkinson's disease (PD) is a neurodegenerative disease characterized by the loss of dopaminergic cells in the substantia nigra pars compacta. PD patients' brains show neuroinflammation, oxidative stress, and mitochondrial dysfunction. The present study aims to evaluate the neuroprotective activity of VD3 on astrocytes after their exposure to rotenone (ROT) a natural pesticide known to exhibit neurotoxic potential via the inhibition of mitochondrial complex I. Cell viability parameters were evaluated by the MTT test and staining with 7-AAD in cultures of astrocytes treated and untreated with VD3 (0.1, 0.5, and 1.0 ng/mL) and/or ROT (10 µg/mL or 5 µg/mL), and the cytoplasmic production of ROS and the cell death profile were measured by flow cytometry. Glutathione accumulation and ultrastructural changes were evaluated and immunocytochemistry assays for NF-kB and Nrf2 were also carried out. The results showed that VD3 improved the viability of cells previously treated with VD3 and then exposed to ROT, reducing the occurrence of necrotic and apoptotic events. Furthermore, cells exposed to ROT showed increased production of ROS, which decreased significantly with previous treatment with VD3. Importantly, the decrease by ROT in the mitochondrial transmembrane potential was significantly prevented after treating cells with VD3, especially at a concentration of 1 ng/mL. Therefore, treatment with VD3 protected astrocytes from damage caused by ROT, decreasing oxidative stress, decreasing NF-kB and Nrf2 expressions, and improving mitochondrial function. However, further investigation is needed regarding the participation and mechanism of action of VD3 in this cellular model of PD focusing on the crosstalk between Nrf2 and NF-kB.
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Morais MLGDS, Santos MGC, Costa CL, Martins CS, Leitão RFDC, de Melo Pacífico D, Quesada-Gómez C, Castelo Branco D, Ferreira EDO, Brito GADC. Comparative biofilm-forming ability between Clostridioides difficile strains isolated in Latin America and the epidemic NAP1/027 strain. Front Cell Infect Microbiol 2022; 12:1033698. [PMID: 36619751 PMCID: PMC9815708 DOI: 10.3389/fcimb.2022.1033698] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/07/2022] [Indexed: 12/03/2022] Open
Abstract
Introduction One of the challenges in treating Clostridioides difficile infection (CDI) is that the bacterium forms biofilms, a critical virulence mechanism known to promote antibiotic resistance and, as a result, consequently, a higher recurrence of the disease. The goal of this study was to compare the ability of three MLST Clade 2 strains to form a biofilm in vitro: ICC-45 (ribotype SLO231/UK[CE]821), a ST41 toxinotype IXb isolated in Brazil; and two epidemic NAP1/027/ST01 strains: NAP1/027/ST01 (LIBA5756), isolated during a 2010 outbreak in Costa Rica and the reference epidemic strain NAP1/027/ST01 (R20291); and ATCC700057, a non-toxigenic strain. Methods The ability of strains to form biofilm was evaluated using crystal violet staining. In addition, samples were stained with the Film Tracer biofilm matrix (Invitrogen®) and the biofilm matrix thickness was measured using confocal microscopy. The matrix architecture was determined using Scanning electron microscop. Confocal microscopy was used to detect the presence of toxin A (tcdA) using an anti-Clostridioides difficile TcdA antibody. The expression of virulence genes (tcdA, tcdB, tcdC, cdtB, spo0A, slpA, cwp66 and cwp84) was examined, as well as the effect of antibiotics metronidazole (MTZ) and vancomycin (VAN) on biofilm growth. Results All of the strains tested formed a moderate biofilm with 1.1 <DO570nm>3.5. After 72h, biofilm biomass of the NAP1/027/ST01 epidemic strains (LIBA5756 and R20291) was significantly higher than ICC-45 and ATCC 700057 biofilms, as confirmed by electron and confocal microscopy. At 120h, the LIBA5756 biofilm biomass decreased compared to other strains. The toxigenic strains R20291 or LIBA 5756 had higher expression of genes tcdA, tcdB, tcdC, cdtA, slpA and spo0A than ICC-45, but there were no significant differences in the expression levels of cdtB, cwp66 and cwp84. In epidemic strains, VAN and MTZ inhibited biofilm formation; however, in the ICC-45 strain, MIC concentrations of VAN and MIC and 4MIC of MTZ did not inhibit biofilm formation. Conclusion The three MLST Clade 2 isolated from different rybotipes, two of which were isolated from Latin America, are competent biofilm-forming bacteria, indicating their ability to induce C. difficile infection recurrence, making treatment difficult.
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Affiliation(s)
- Maria Luana Gaudencio dos Santos Morais
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil,Laboratory of Bacteriology, Department of Pathology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Mayara Gilde Castro Santos
- Laboratório de Biologia de Anaeróbios, Instituto de Microbiologia Paulo de Góes Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Cecília Leite Costa
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil,Laboratory of Bacteriology, Department of Pathology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Conceição Silva Martins
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Dvison de Melo Pacífico
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Carlos Quesada-Gómez
- Facultad de Microbiología and Centro de Investigación en Enfermedades Tropicales, Universidad de Costa Rica, San José, Costa Rica
| | - Débora Castelo Branco
- Laboratory of Bacteriology, Department of Pathology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Eliane de Oliveira Ferreira
- Laboratory of Bacteriology, Department of Pathology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Gerly Anne de Castro Brito
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil,*Correspondence: Gerly Anne de Castro Brito,
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Girão-Carmona VCC, Bezerra MM, Porto FMAX, Pinto ACMD, de Melo Nunes R, Alves AMCV, Campello CC, de Melo Leite ACR, de Castro Brito GA, da Rocha FAC. Quantitative evaluation of very early cartilage damage in experimental osteoarthritis using scanning electron microscopy. Adv Rheumatol 2022; 62:42. [PMID: 36371322 DOI: 10.1186/s42358-022-00277-w] [Citation(s) in RCA: 1] [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: 07/12/2022] [Accepted: 10/29/2022] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To describe parametric changes observed using scanning electron microscopy (SEM) in very early stages in posttraumatic osteoarthritis (OA) models in mice. METHODS Mice (5/group) had their knees subjected to anterior cruciate ligament transection (ACLT), ACLT plus meniscectomy (MNCT) or sham surgery, sacrificed after 3, 7 or 14 days, had the articular cartilage evaluated under optical microscopy using Osteoarthritis Research Society International (OARSI) parameters as well as cartilage thickness, roughness, and a damage index using SEM. RESULTS Alterations of the cartilage under optical microscopy were not significantly relevant among groups. SEM analysis revealed reduction of femoral and tibial cartilage thickness in ACLT and MNCT groups at 7 and 14 days, with increased cartilage roughness in MNCT group as early as 3 days postsurgery, being sustained up to 14 days. Articular damage index was significantly higher at 14 days post surgery in ACLT and MNCT vs control groups. CONCLUSION This is the first demonstration of very early quantitative changes in the cartilage of mice subjected to posttraumatic experimental OA using SEM, revealing increased roughness and thickness as early as 3 days post surgery. These changes may be used as early surrogates for later joint damage in experimental OA.
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Affiliation(s)
- Virgínia Cláudia Carneiro Girão-Carmona
- Faculdade de Medicina da Universidade Federal do Ceará, Postgraduate Program in Morphological Sciences, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | | | - Fernanda Maria Aragão Ximenes Porto
- Faculdade de Medicina da Universidade Federal do Ceará, Postgraduate Program in Morphological Sciences, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | | | - Rodolfo de Melo Nunes
- Postgraduate Program in Medical Sciences, Faculdade de Medicina da Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Anelise Maria Costa Vasconcelos Alves
- Faculdade de Medicina da Universidade Federal do Ceará, Postgraduate Program in Medical Microbiology, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Claudio Cabral Campello
- Faculdade de Medicina Veterinária of the Universidade Estadual do Ceará, Fortaleza, Ceará, Brazil
| | | | - Gerly Anne de Castro Brito
- Faculdade de Medicina da Universidade Federal do Ceará, Postgraduate Program in Morphological Sciences, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
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Barbosa SJDA, Oliveira MMB, Ribeiro SB, de Medeiros CACX, Lima MLDS, Guerra GCB, de Araújo Júnior RF, de Sousa Junior FC, Martins AA, Paiva DFF, Andrade RVS, Rebouças CSM, Brito GADC, Leitâo RFDC, de Araújo A. The beneficial effects of Lacticaseibacillus casei on the small intestine and colon of Swiss mice against the deleterious effects of 5-fluorouracil. Front Immunol 2022; 13:954885. [PMID: 36341441 PMCID: PMC9635922 DOI: 10.3389/fimmu.2022.954885] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 05/27/2022] [Accepted: 10/07/2022] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND Intestinal mucositis is one of the most common and important side effects of 5-fluorouracil (5-FU). Currently, there are still no specific and effective protocols for its prevention and treatment. The aim of the present study was to evaluate the effect of oral administration of Lacticaseibacillus casei (L. casei) on the progression of 5-FU-induced intestinal mucositis. Methods: L. casei (1x109 CFU/ml) or saline was orally administered to Swiss mice, beginning 15 days before intestinal mucositis induction by single intraperitoneal 5-FU administration (450 mg/kg). Body weight, number of peripheral leukocytes and fecal lactic acid bacteria were monitored. After euthanasia, on day 18, tissue samples from colon and each small intestine segment were collected for histopathology. Jejunal tissues were collected and evaluated for iNOS and TNF-alpha immunoexpression, IL-1-beta, IL-6 and TNF-alpha levels, malonaldehyde (MDA) accumulation, invertase activity and factor nuclear kappa B (NFkB-P65) gene expression, toll like receptor-4 (TLR-4), mucin-2 (MUC-2), occludin and zonula occludens-1 (ZO-1). RESULTS The positive impact of L. casei on 5-FU-induced leukopenia was observed, but not on 5-FU-induced weight loss in mice. L. casei reduced 5-FU-induced inflammation in the colon and small intestine (p<0.05). Decreased TNF-α, IL-1β, IL-6 (p<0.05) and MDA (p<0.05) levels, as well as decreased iNOS and TNF-alpha protein expressions (p<0.05) were found in the jejunum from L casei group. In addition, L-casei down-regulated NFKB-P65 (p<0.05) and TLR-4 (p<0.05) gene expressions and up-regulated MUC-2 and mucosal barrier proteins occludin and ZO-1 gene expressions (p<0.05). Furthermore, greater lactic acid bacteria population (p<0.05) was found in the L. casei group when compared to control groups. CONCLUSION Oral L. casei administration can protect the intestine of Swiss mice from 5-FU-induced intestinal mucositis, thus contributing to overall health.
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Affiliation(s)
- Stphannie Jamyla de Araújo Barbosa
- Postgraduate Program in Pharmaceutical Science, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, Brazil
| | - Maisie Mitchele Barbosa Oliveira
- Postgraduate Program in Biotechnology /RENORBIO, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, Brazil
| | - Susana Barbosa Ribeiro
- Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, Brazil
| | - Caroline Addison Carvalho Xavier de Medeiros
- Postgraduate Program in Biotechnology /RENORBIO, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, Brazil
- Postgraduate Program in Biochemistry and Molecular Biology, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, Brazil
| | - Maria Laura de Souza Lima
- Postgraduate Program in Oral Sciences, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, Brazil
| | - Gerlane Coelho Bernardo Guerra
- Postgraduate Program in Pharmaceutical Science, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, Brazil
- Postgraduate Program in Biochemistry and Molecular Biology, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, Brazil
| | - Raimundo Fernandes de Araújo Júnior
- Postgraduate Program in Health Sciences, Department of Morphology, Federal University of Rio Grande Norte, Natal, Brazil
- Postgraduate Program in Functional and Structural Biology UFRN, Department of Morphology, Federal University of Rio Grande Norte, Natal, Brazil
| | - Francisco Caninde de Sousa Junior
- Postgraduate Program in Pharmaceutical Science, Department of Pharmaceutical Science, Federal University of Rio Grande Norte, Natal, Brazil
| | | | | | | | | | | | | | - Aurigena Antunes de Araújo
- Postgraduate Program in Pharmaceutical Science, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, Brazil
- Postgraduate Program in Oral Sciences, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, Brazil
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Silveira FD, Gomes FIF, do Val DR, Freitas HC, de Assis EL, de Almeida DKC, Braz HLB, Barbosa FG, Mafezoli J, da Silva MR, Jorge RJB, Clemente-Napimoga JT, Costa DVDS, Brito GADC, Pinto VDPT, Cristino-Filho G, Bezerra MM, Chaves HV. Biological and Molecular Docking Evaluation of a Benzylisothiocyanate Semisynthetic Derivative From Moringa oleifera in a Pre-clinical Study of Temporomandibular Joint Pain. Front Neurosci 2022; 16:742239. [PMID: 35546897 PMCID: PMC9083263 DOI: 10.3389/fnins.2022.742239] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 03/14/2022] [Indexed: 11/18/2022] Open
Abstract
Objective Moringa oleifera possesses multiple biological effects and the 4-[(4′-O-acetyl-α-L- rhamnosyloxy) benzyl] isothiocyanate accounts for them. Based on the original isothiocyanate molecule we obtained a semisynthetic derivative, named 4-[(2′,3′,4′-O-triacetyl-α-L-rhamnosyloxy) N-benzyl] hydrazine carbothioamide (MC-H) which was safe and effective in a temporomandibular joint (TMJ) inflammatory hypernociception in rats. Therefore, considering that there is still a gap in the knowledge concerning the mechanisms of action through which the MC-H effects are mediated, this study aimed to investigate the involvement of the adhesion molecules (ICAM-1, CD55), the pathways heme oxygenase-1 (HO-1) and NO/cGMP/PKG/K+ATP, and the central opioid receptors in the efficacy of the MC-H in a pre-clinical study of TMJ pain. Methods Molecular docking studies were performed to test the binding performance of MC-H against the ten targets of interest (ICAM-1, CD55, HO-1, iNOS, soluble cGMP, cGMP-dependent protein kinase (PKG), K+ATP channel, mu (μ), kappa (κ), and delta (δ) opioid receptors). In in vivo studies, male Wistar rats were treated with MC-H 1 μg/kg before TMJ formalin injection and nociception was evaluated. Periarticular tissues were removed to assess ICAM-1 and CD55 protein levels by Western blotting. To investigate the role of HO-1 and NO/cGMP/PKG/K+ATP pathways, the inhibitors ZnPP-IX, aminoguanidine, ODQ, KT5823, or glibenclamide were used. To study the involvement of opioid receptors, rats were pre-treated (15 min) with an intrathecal injection of non-selective inhibitor naloxone or with CTOP, naltrindole, or norbinaltorphimine. Results All interactions presented acceptable binding energy values (below −6.0 kcal/mol) which suggest MC-H might strongly bind to its molecular targets. MC-H reduced the protein levels of ICAM-1 and CD55 in periarticular tissues. ZnPP-IX, naloxone, CTOP, and naltrindole reversed the antinociceptive effect of MC-H. Conclusion MC-H demonstrated antinociceptive and anti-inflammatory effects peripherally by the activation of the HO-1 pathway, as well as through inhibition of the protein levels of adhesion molecules, and centrally by μ and δ opioid receptors.
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Affiliation(s)
| | | | - Danielle Rocha do Val
- Graduate Programme in Biotechnology, North-Eastern Biotechnology Network, Federal University of Pernambuco, Recife, Brazil
| | | | | | | | - Helyson Lucas Bezerra Braz
- Graduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | | | - Jair Mafezoli
- Graduate Programme in Chemistry, Science Center, Federal University of Ceará, Fortaleza, Brazil
| | | | - Roberta Jeane Bezerra Jorge
- Graduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil.,Drug Research and Development Center (NPDM), Federal University of Ceará, Fortaleza, Brazil
| | | | - Deiziane Viana da Silva Costa
- Graduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Gerly Anne de Castro Brito
- Graduate Program in Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Vicente de Paulo Teixeira Pinto
- Graduate Programme in Health Sciences, Federal University of Ceará, Sobral, Brazil.,Faculty of Medicine, Federal University of Ceará, Sobral, Brazil
| | - Gerardo Cristino-Filho
- Graduate Programme in Health Sciences, Federal University of Ceará, Sobral, Brazil.,Faculty of Medicine, Federal University of Ceará, Sobral, Brazil
| | - Mirna Marques Bezerra
- Graduate Programme in Health Sciences, Federal University of Ceará, Sobral, Brazil.,Faculty of Medicine, Federal University of Ceará, Sobral, Brazil
| | - Hellíada Vasconcelos Chaves
- Graduate Programme in Health Sciences, Federal University of Ceará, Sobral, Brazil.,Faculty of Dentistry, Federal University of Ceará, Sobral, Brazil.,Graduate Program in Dentistry, Federal University of Ceará, Fortaleza, Brazil
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Oliveira MMB, de Araújo AA, Ribeiro SB, de Sales Mota PCM, Marques VB, da Silva Martins Rebouças C, Figueiredo JG, Barra PB, de Castro Brito GA, de Carvalho Leitão RF, Guerra GCB, de Medeiros CACX. Losartan improves intestinal mucositis induced by 5-fluorouracil in mice. Sci Rep 2021; 11:23241. [PMID: 34853351 PMCID: PMC8636633 DOI: 10.1038/s41598-021-01969-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 11/01/2021] [Indexed: 02/07/2023] Open
Abstract
Intestinal mucositis (IM) is a common side effect of 5-fluorouracil (5-FU)-based chemotherapy, which negatively impacts therapeutic outcomes and delays subsequent cycles of chemotherapy resulting in dose reductions and treatment discontinuation. In search of new pharmacological alternatives that minimize your symptoms, this work set out to study the effect of losartan (LOS), a receptor type I (AT1) angiotensin II antagonist, on intestinal mucositis induced by 5-FU. Intestinal mucositis was induced by a single intraperitoneal administration of 5-FU (450 mg/kg) in Swiss mice. Losartan (5, 25 or 50 mg/kg) or saline was orally administered 30 min before 5-FU and daily for 4 days. On 4th day, the animals were euthanized and segments of small intestine were collected to evaluate histopathological alterations (morphometric analysis), concentration of inflammatory cytokines, oxidative stress markers and genic expression of NF-κB p65, Fn-14 and TWEAK. Weight evaluation and changes in leukogram were also analyzed. 5-FU induced intense weight loss, leukopenia and reduction in villus height compared to saline group. Losartan (50 mg/kg) prevented 5-FU-induced inflammation by decreasing in the analyzed parameters compared to the 5-FU group. Our findings suggest that 50 mg/kg of losartan prevents the effects of 5-FU on intestinal mucosa in mice.
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Affiliation(s)
| | - Aurigena Antunes de Araújo
- Post Graduate Program in Pharmaceutical Science, Post Graduate Program Dental Sciences, Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Susana Barbosa Ribeiro
- Junior Postdoctoral Student CNPq-Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | | | | | | | - Jozi Godoy Figueiredo
- Department of Biochemistry, Faculty of Vale do São Lourenço (EDUVALE), Jaciara, MT, Brazil
| | - Patrícia Batista Barra
- Post Graduate Program in Biology Teaching in National Network-PROFBIO, Department of Biomedical Sciences, State University of Rio Grande do Norte (UERN), Mossoró, RN, Brazil
| | - Gerly Anne de Castro Brito
- Post Graduate Program Morphofunctional Sciences, Post Graduate Program Medical Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Renata Ferreira de Carvalho Leitão
- Post Graduate Program Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Gerlane Coelho Bernardo Guerra
- Post Graduate Program Biochemistry and Molecular Biology, Post Graduate Program Pharmaceutical Science, Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Caroline Addison Carvalho Xavier de Medeiros
- Post Graduate Program Biotechnology-RENORBIO, Post Graduate Program Biochemistry and Molecular Biology, Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil.
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11
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Nogueira HBR, Costa CL, Martins CS, Morais MLGS, Quesada-Gómez C, Carvalho CBM, de Oliveira Ferreira E, de Castro Brito GA. Infection with Clostridioides difficile ribotype 046 in a paediatric liver transplant patient. Access Microbiol 2021; 3:000268. [PMID: 34816088 PMCID: PMC8604175 DOI: 10.1099/acmi.0.000268] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 08/04/2021] [Indexed: 11/18/2022] Open
Abstract
Clostridioides difficile causes nosocomial diarrhoea associated with antibiotic use and immunodeficiency. Although the number of paediatric C. difficile infections (CDIs) has increased worldwide, there are few studies on the molecular characterization of strains causing CDIs among children. We report the clinical features and strain molecular characterization of a CDI in a female child with a history of liver transplantation at 7 months of age. This is the first report of the 046 ribotype causing paediatric diarrhoea.
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Affiliation(s)
- Hildenia B R Nogueira
- Albert Sabin Children's Hospital, Fortaleza, Ceara, Brazil.,Department of Morphology, Faculty of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil.,University of Fortaleza, CE, Brazil
| | - Cecília L Costa
- Department of Morphology, Faculty of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil.,Laboratory of Bacteriology, Department of Pathology, Faculty of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil
| | - Conceição S Martins
- Department of Morphology, Faculty of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil
| | - Maria Luana G S Morais
- Department of Morphology, Faculty of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil.,Laboratory of Bacteriology, Department of Pathology, Faculty of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil
| | - Carlos Quesada-Gómez
- Facultad de Microbiología and Centro de Investigación en Enfermedades Tropicales, Universidad de Costa Rica, San José, Costa Rica
| | - Cibele B M Carvalho
- Laboratory of Bacteriology, Department of Pathology, Faculty of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil
| | - Eliane de Oliveira Ferreira
- Federal University of Rio de Janeiro, Institute of Microbiology Paulo de Góes, Laboratory of Anaerobic Biology, Rio de Janeiro, Brazil
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12
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Lima MLDS, de Medeiros CACX, Guerra GCB, Santos R, Bader M, Pirih FQ, de Araújo Júnior RF, Chan AB, Cruz LJ, Brito GADC, Leitão RFDC, da Silveira EJD, Garcia VB, Martins AA, de Araújo AA. AT1 and AT2 Receptor Knockout Changed Osteonectin and Bone Density in Mice in Periodontal Inflammation Experimental Model. Int J Mol Sci 2021; 22:5217. [PMID: 34069164 PMCID: PMC8157150 DOI: 10.3390/ijms22105217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 03/23/2021] [Revised: 04/15/2021] [Accepted: 04/17/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND The aim of this study was to evaluate the role of AT1 and AT2 receptors in a periodontal inflammation experimental model. METHODS Periodontal inflammation was induced by LPS/Porphyromonas gingivalis. Maxillae, femur, and vertebra were scanned using Micro-CT. Maxillae were analyzed histopathologically, immunohistochemically, and by RT-PCR. RESULTS The vertebra showed decreased BMD in AT1 H compared with WT H (p < 0.05). The femur showed increased Tb.Sp for AT1 H and AT2 H, p < 0.01 and p < 0.05, respectively. The Tb.N was decreased in the vertebra (WT H-AT1 H: p < 0.05; WT H-AT2 H: p < 0.05) and in the femur (WT H-AT1 H: p < 0.01; WT H-AT2 H: p < 0.05). AT1 PD increased linear bone loss (p < 0.05) and decreased osteoblast cells (p < 0.05). RANKL immunostaining was intense for AT1 PD and WT PD (p < 0.001). OPG was intense in the WT H, WT PD, and AT2 PD when compared to AT1 PD (p < 0.001). AT1 PD showed weak immunostaining for osteocalcin compared with WT H, WT PD, and AT2 PD (p < 0.001). AT1 H showed significantly stronger immunostaining for osteonectin in fibroblasts compared to AT2 H (p < 0.01). CONCLUSION AT1 receptor knockout changed bone density, the quality and number of bone trabeculae, decreased the number of osteoblast cells, and increased osteonectin in fibroblasts.
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Affiliation(s)
- Maria Laura de Souza Lima
- Postgraduate Program in Dentistry Sciences, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, RN 59078-900, Brazil; (M.L.d.S.L.); (E.J.D.d.S.)
| | - Caroline Addison Carvalho Xavier de Medeiros
- Postgraduate Program in Biological Science, Postgraduate Program in RENORBIO, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, RN 59078-970, Brazil;
| | - Gerlane Coelho Bernardo Guerra
- Postgraduate Program in Biological Science, Postgraduate Program in Pharmaceutical Science, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, RN 59078-970, Brazil;
| | - Robson Santos
- Department of Physiology, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil;
| | - Michael Bader
- Max Delbrück Center of Molecular Medicine, 13125 Berlin, Germany;
| | - Flavia Q. Pirih
- School of Dentistry, Universidad California-Los Angeles (UCLA), Los Angeles, CA 90095, USA;
| | - Raimundo Fernandes de Araújo Júnior
- Post Graduate Program Functional and Structural Biology, Post Graduate Program Health Science, Department of Morphology, Federal University of Rio Grande do Norte, 3000 Senador Salgado Filho Ave, Lagoa Nova, Natal, RN 59078-970, Brazil;
| | - Alan B. Chan
- Percuros B.V, 2333 CL Leiden, The Netherlands;
- Translational Nanobiomaterials and Imaging, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands;
| | - Luis J. Cruz
- Translational Nanobiomaterials and Imaging, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands;
| | - Gerly Anne de Castro Brito
- Postgraduate Program in Pharmacology, Postgraduate Program in Morphology, Department of Morphology, Fortaleza, CE 60430-170, Brazil;
| | | | - Ericka Janine Dantas da Silveira
- Postgraduate Program in Dentistry Sciences, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, RN 59078-900, Brazil; (M.L.d.S.L.); (E.J.D.d.S.)
| | - Vinicius Barreto Garcia
- Postgraduate Program in Health Sciences, Cancer and Inflammation Research laboratory, Department of Morphology, Federal University of Rio Grande Norte, Natal, RN 59078-970, Brazil;
| | - Agnes Andrade Martins
- Department of Dentistry, Federal University of Rio Grande Norte, Natal, RN 59078-970, Brazil;
| | - Aurigena Antunes de Araújo
- Postgraduate Program in Dentistry Sciences, Department of Biophysical and Pharmacology, Federal University of Rio Grande Norte, Natal, RN 59078-900, Brazil; (M.L.d.S.L.); (E.J.D.d.S.)
- AV. Senador Salgado Filho, S/N, Campus Universitário, Centro de Bio-ciências, Departamento de Biofísica e Farmacologia, UFRN, Natal, RN 59078-900, Brazil
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13
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de Sousa FRN, de Sousa Ferreira VC, da Silva Martins C, Dantas HV, de Sousa FB, Girão-Carmona VCC, Goes P, de Castro Brito GA, de Carvalho Leitão RF. The effect of high concentration of zoledronic acid on tooth induced movement and its repercussion on root, periodontal ligament and alveolar bone tissues in rats. Sci Rep 2021; 11:7672. [PMID: 33828221 PMCID: PMC8027035 DOI: 10.1038/s41598-021-87375-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 01/14/2021] [Accepted: 03/24/2021] [Indexed: 12/16/2022] Open
Abstract
Zoledronic acid (ZA) is often prescribed for osteoporosis or resorptive metabolic bone disease. This study aims to evaluate the effect of ZA on orthodontic tooth movement (OTM) and root and bone resorption and its repercussion on root, periodontal ligament and alveolar bone tissues. The experimental group consisted of 72 Wistar rats divided in four subgroups: Naive, Saline and Zoledronic Acid groups at the concentration of 0.2 mg/kg [ZA (0.2)] or 1.0 mg/kg [ZA (1.0)]. The animals were subjected to i.v (dorsal penile vein) administrations of ZA or saline solution, on days 0, 7, 14 and 42. Under anesthesia, NiTi springs were installed in the first left maxillary molar with 50gf allowing the OTM, except for the negative control group (N) for mesial movement of the left first maxillary teeth. The animals were sacrificed and maxillae were removed for macroscopic and histopathological analyzes, scanning electron microscopy, computerized microtomography and confocal microscopy. Treatment with ZA decreased the OTM and the number of osteoclasts and loss of alveolar bone when compared to the naive and saline groups. Reduction of radicular resorption, increased necrotic areas and reduced vascularization in the periodontal ligament were observed in the ZA groups. ZA interferes with OTM and presents anti-resorptive effects on bone and dental tissues associated with a decreased vascularization, without osteonecrosis.
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Affiliation(s)
- Fátima Regina Nunes de Sousa
- Post-Graduation Program in Morfofuncional Sciences (PCMF), Departamento de Morfologia, Faculdade de Medicina, Medical School, Universidade Federal do Ceará (UFC), Rua Delmiro de Farias, s/n, Rodolfo Teófilo, Fortaleza, CE, 60441-750, Brazil
- Department of Morphology, Medical School, Federal University of Piauí (UFPI), Rua Cícero Duarte, 905, Picos, PI, 64607-670, Brazil
| | - Vanessa Costa de Sousa Ferreira
- Post-Graduation Program in Morfofuncional Sciences (PCMF), Departamento de Morfologia, Faculdade de Medicina, Medical School, Universidade Federal do Ceará (UFC), Rua Delmiro de Farias, s/n, Rodolfo Teófilo, Fortaleza, CE, 60441-750, Brazil
| | - Conceição da Silva Martins
- Post-Graduation Program in Morfofuncional Sciences (PCMF), Departamento de Morfologia, Faculdade de Medicina, Medical School, Universidade Federal do Ceará (UFC), Rua Delmiro de Farias, s/n, Rodolfo Teófilo, Fortaleza, CE, 60441-750, Brazil
| | - Hugo Victor Dantas
- Graduate Program in Dentistry, Health Sciences Center, Federal University of Paraíba (UFPB), Campus I, Cidade Universitária, João Pessoa, PB, 58059-900, Brazil
| | - Frederico Barbosa de Sousa
- Graduate Program in Dentistry, Health Sciences Center, Federal University of Paraíba (UFPB), Campus I, Cidade Universitária, João Pessoa, PB, 58059-900, Brazil
| | - Virgínia Cláudia Carneiro Girão-Carmona
- Post-Graduation Program in Morfofuncional Sciences (PCMF), Departamento de Morfologia, Faculdade de Medicina, Medical School, Universidade Federal do Ceará (UFC), Rua Delmiro de Farias, s/n, Rodolfo Teófilo, Fortaleza, CE, 60441-750, Brazil
| | - Paula Goes
- Post-Graduation Program in Morfofuncional Sciences (PCMF), Departamento de Morfologia, Faculdade de Medicina, Medical School, Universidade Federal do Ceará (UFC), Rua Delmiro de Farias, s/n, Rodolfo Teófilo, Fortaleza, CE, 60441-750, Brazil
- Department of Pathology and Legal Medicine, Medical School, Federal University of Ceará (UFC), Rua Monsenhor Furtado, s/n, Fortaleza, CE, 60441-750, Brazil
| | - Gerly Anne de Castro Brito
- Post-Graduation Program in Morfofuncional Sciences (PCMF), Departamento de Morfologia, Faculdade de Medicina, Medical School, Universidade Federal do Ceará (UFC), Rua Delmiro de Farias, s/n, Rodolfo Teófilo, Fortaleza, CE, 60441-750, Brazil
| | - Renata Ferreira de Carvalho Leitão
- Post-Graduation Program in Morfofuncional Sciences (PCMF), Departamento de Morfologia, Faculdade de Medicina, Medical School, Universidade Federal do Ceará (UFC), Rua Delmiro de Farias, s/n, Rodolfo Teófilo, Fortaleza, CE, 60441-750, Brazil.
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14
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Girão ES, de Melo Tavares B, Dos Santos SA, Gamarra GL, Rizek C, Martins RC, Neto LVP, Diogo C, D' Annibale Orsi T, Morales HMP, da Silva Nogueira K, Maestri AC, Boszczowski I, Piastrelli F, Costa CL, Costa DV, Maciel G, Romão J, Guimarães T, de Castro Brito GA, Costa SF. Predictive factors, outcomes, and molecular epidemiology of Clostridioides difficile diarrhea in Brazilian hospitals. Eur J Clin Microbiol Infect Dis 2021; 40:1821-1832. [PMID: 33783664 DOI: 10.1007/s10096-021-04189-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 11/19/2020] [Accepted: 02/07/2021] [Indexed: 11/29/2022]
Abstract
Little is known about the role of lineage of strains of Clostridioides difficile (CD) on the clinical presentation of CD infection (CDI) in Latin America, especially regarding the treatment response. We conducted a multicenter, prospective study to investigate the predictive factors and treatment outcomes of CDI in hospitalized patients and to performed phenotypical and molecular characterization of CD strains. A total of 361 diarrheic patients at 5 hospitals from different regions of the country were enrolled. All stool samples were tested for glutamate dehydrogenase (GDH), toxins A and B, and toxin genes using a nucleic acid amplification test (NAAT). Specimens were cultured and susceptibility profile and whole-genome sequencing (WGS) were performed. CDI positivity was 15% (56/377). Predictive factors for CDI were prior use of meropenem (OR 4.09, 95% CI 2.097-7.095; p<0.001), mucus in stools (OR 3.29; 95% CI 1.406-7.722; p=0.006) and neutrophil left-shift with >20% of bands (OR 3.77; 95% IC 1.280-11.120; p=0.016). Overall mortality was 19%, with no deaths attributed to CDI. Oral metronidazole was used in 74% of cases, with 85% of cure and 14% of recurrence. A total of 35 CD isolates were recovered, all of them susceptible to metronidazole and vancomycin. The WGS revealed 17 different STs, six of which were novel. ST42 was the most common ST and hypervirulent strains were not found. Severe CDI were caused by ST42, ST5, ST8, ST48, ST33 and a novel ST667. The ermB gene was more frequently found in isolates of ST42 (p=0.004).
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Affiliation(s)
- Evelyne Santana Girão
- Hospital Universitário Walter Cantídio, Universidade Federal do Ceará, R. Pastor Samuel Munguba, 1290 - Rodolfo Teófilo, Fortaleza, Ceará, 60430-372, Brazil. .,Divisão de Moléstias Infecciosas, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil. .,Hospital São José de Doenças Infecciosas, Fortaleza, Brazil.
| | - Bruno de Melo Tavares
- Divisão de Moléstias Infecciosas, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Sania Alves Dos Santos
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Gessica Lorena Gamarra
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Camila Rizek
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Roberta Cristina Martins
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Lauro Vieira Perdigão Neto
- Divisão de Moléstias Infecciosas, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil.,LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Constancia Diogo
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Tatiana D' Annibale Orsi
- LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | - Icaro Boszczowski
- Divisão de Moléstias Infecciosas, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil.,Hospital Alemão Oswaldo Cruz, São Paulo, Brazil
| | | | - Cecilia Leite Costa
- Departamento de Morfologia, Universidade Federal do Ceará, Fortaleza, Brazil
| | - Daniely Viana Costa
- Hospital Universitário Walter Cantídio, Universidade Federal do Ceará, R. Pastor Samuel Munguba, 1290 - Rodolfo Teófilo, Fortaleza, Ceará, 60430-372, Brazil
| | - Geovania Maciel
- Hospital Universitário Walter Cantídio, Universidade Federal do Ceará, R. Pastor Samuel Munguba, 1290 - Rodolfo Teófilo, Fortaleza, Ceará, 60430-372, Brazil
| | - Janete Romão
- Hospital São José de Doenças Infecciosas, Fortaleza, Brazil
| | - Thais Guimarães
- Divisão de Moléstias Infecciosas, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | | | - Silvia Figueiredo Costa
- Divisão de Moléstias Infecciosas, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil.,LIM-49, Instituto de Medicina Tropical, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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15
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Costa CL, Azevedo CPD, Quesada-Gómez C, Brito GADC, Regueira-Neto MDS, Guedes GMDM, Rocha MFG, Sidrim JJC, Cordeiro RDA, Carvalho CBMD, Castelo-Branco DDSCM. Inhibitory effect of Brazilian red propolis on planktonic and biofilm forms of Clostridioides difficile. Anaerobe 2021; 69:102322. [PMID: 33515722 DOI: 10.1016/j.anaerobe.2021.102322] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 09/22/2020] [Revised: 01/05/2021] [Accepted: 01/15/2021] [Indexed: 10/22/2022]
Abstract
Clostridioides difficile is a Gram-positive, spore-forming, anaerobic bacillus which is the leading cause of health-care-associated infective diarrhea. The rising incidence of antibiotic resistance in pathogens such as C. difficile makes researches on alternative antibacterial products very important, especially those exploring natural products like propolis. Brazilian Red Propolis, found in the Northeast region of Brazil, is composed by products from regional plants that have the antimicrobial properties. This study aimed to evaluate the in vitro activity of Brazilian Red Propolis (BRP) against C. difficile strains in planktonic and biofilm forms. The susceptibility of four strains of C. difficile to BRP was analyzed by broth microdilution method and vancomycin was included as control drug. BRP-exposed C. difficile cells were evaluated by scanning electron microscopy (SEM). Then, the effects of BRP on growing and mature C. difficile biofilms were also evaluated. BRP minimum inhibitory concentration was 625 μg/mL against all tested strains, while vancomycin MIC range was 0.5-2 μg/mL. SEM showed the loss of homogeneity in bacterial cell wall and cell fragmentation, after BRP-exposure. BRP, at MIC, reduced (P < 0.05) the biomass, matrix proteins and matrix carbohydrates of growing biofilms, and, at 8xMIC, reduced (P < 0.05) the biomass and matrix proteins of mature biofilms. The present study demonstrated that BRP inhibits planktonic growth, damages cell wall, decreases biofilm growth and harms mature biofilms of C. difficile.
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Affiliation(s)
- Cecília Leite Costa
- Group of Applied Medical Microbiology - GrAMM, Postgraduate Program in Medical Microbiology, School of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil; Biomedicine School, Christus University, Fortaleza, CE, Brazil; Department of Morphology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Carolina Pimentel de Azevedo
- Group of Applied Medical Microbiology - GrAMM, Postgraduate Program in Medical Microbiology, School of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil
| | - Carlos Quesada-Gómez
- Laboratorio de Investigación en Bacteriología Anaerobia, Facultad de Microbiología and Centro de Investigación en Enfermedades Tropicales, Universidad de Costa Rica, San José, Costa Rica
| | | | - Marcos da Silveira Regueira-Neto
- Laboratory of Bioinformatics and Evolutionary Biology, Department of Genetics, Biosciences Center, Federal University of Pernambuco, Recife, PE, Brazil
| | - Glaucia Morgana de Melo Guedes
- Group of Applied Medical Microbiology - GrAMM, Postgraduate Program in Medical Microbiology, School of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil.
| | - Marcos Fábio Gadelha Rocha
- Laboratory of Emerging and Reemerging Pathogens, Postgraduate Program in Medical Microbiology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - José Júlio Costa Sidrim
- Laboratory of Emerging and Reemerging Pathogens, Postgraduate Program in Medical Microbiology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Rossana de Aguiar Cordeiro
- Laboratory of Emerging and Reemerging Pathogens, Postgraduate Program in Medical Microbiology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Cibele Barreto Mano de Carvalho
- Group of Applied Medical Microbiology - GrAMM, Postgraduate Program in Medical Microbiology, School of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil
| | - Debora de Souza Collares Maia Castelo-Branco
- Group of Applied Medical Microbiology - GrAMM, Postgraduate Program in Medical Microbiology, School of Medicine, Federal University of Ceara, Fortaleza, CE, Brazil; Laboratory of Emerging and Reemerging Pathogens, Postgraduate Program in Medical Microbiology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
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16
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Ribeiro SB, de Araújo AA, Oliveira MMB, dos Santos Silva AM, da Silva-Júnior AA, Guerra GCB, Brito GADC, Leitão RFDC, de Araújo Júnior RF, Garcia VB, Vasconcelos RC, de Medeiros CACX. Effect of Dexamethasone-Loaded PLGA Nanoparticles on Oral Mucositis Induced by 5-Fluorouracil. Pharmaceutics 2021; 13:pharmaceutics13010053. [PMID: 33406583 PMCID: PMC7823510 DOI: 10.3390/pharmaceutics13010053] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 10/16/2020] [Revised: 11/23/2020] [Accepted: 12/01/2020] [Indexed: 01/06/2023] Open
Abstract
Oral mucositis (OM) is characterized by the presence of severe ulcers in the oral region that affects patients treated with chemotherapy. It occurs in almost all patients who receive radiotherapy of the head and neck, as well as patients who undergo hematopoietic cell transplantation. The pathophysiology of OM is complex, and there is no effective therapy. The aim of this study was to evaluate the effect of dexamethasone-loaded poly(d,l-Lactic-co-glycolic) nanoparticles (PLGA-DEX NPs) on an OM model induced in hamsters. The NPs were synthesized using the emulsification-solvent evaporation method and were characterized by the size, zeta potential, encapsulation efficiency, atomic force microscopy, physicochemical stability, and the in vitro release. The OM was induced by the administration of 5-FU on the first and second days and mechanical trauma on the 4th day of the experiment. PLGA-DEX NPs were administered to treat OM. The animals were euthanized on the 10th day. Macroscopic and histopathological analyses were performed, measurement of malonaldehyde (MDA) and ELISA was used to determine the levels of IL-1β and TNF-α. Immunoexpressions of NF-κB, COX-2, and TGF-β were determined by immunohistochemistry, and qRT-PCR was used to quantify the gene expression of the GILZ, MKP1, and NF-κB p65. The PLGA-DEX NPs (0.1 mg/kg) significantly reduced macroscopic and histopathological scores, decreased MDA, TNF-α and IL-1β levels, immunostaining for NF-κB, COX-2, TGF-β, and suppressed NF-κB p65 mRNA expression, but increased GILZ and MKP1 expression.
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Affiliation(s)
- Susana Barbosa Ribeiro
- Post Graduate Program Biotechnology-RENORBIO, Federal University of Rio Grande do Norte, 3000 Senador Salgado Filho Ave, Lagoa Nova, Natal RN 59078-970, Brazil; (S.B.R.); (M.M.B.O.)
| | - Aurigena Antunes de Araújo
- Post Graduate Program Dental Sciences, Post Graduate Program Pharmaceutical Science, Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte, 3000 Senador Salgado Filho Ave, Lagoa Nova, Natal RN 59078-970, Brazil;
| | - Maisie Mitchele Barbosa Oliveira
- Post Graduate Program Biotechnology-RENORBIO, Federal University of Rio Grande do Norte, 3000 Senador Salgado Filho Ave, Lagoa Nova, Natal RN 59078-970, Brazil; (S.B.R.); (M.M.B.O.)
| | - Alaine Maria dos Santos Silva
- Laboratory of Pharmaceutical Technology & Biotechnology (TecBioFar), Post Graduate Program Pharmaceutical Sciences, Pharmacy Department, Federal University of Rio Grande do Norte, General Gustavo Cordeiro de Faria St, Petrópolis, Natal RN 59012-570, Brazil; (A.M.d.S.S.); (A.A.d.S.-J.)
| | - Arnóbio Antônio da Silva-Júnior
- Laboratory of Pharmaceutical Technology & Biotechnology (TecBioFar), Post Graduate Program Pharmaceutical Sciences, Pharmacy Department, Federal University of Rio Grande do Norte, General Gustavo Cordeiro de Faria St, Petrópolis, Natal RN 59012-570, Brazil; (A.M.d.S.S.); (A.A.d.S.-J.)
| | - Gerlane Coelho Bernardo Guerra
- Post Graduate Program Biochemistry and Molecular Biology, Post Graduate Program Pharmaceutical Science, Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte, 3000 Senador Salgado Filho Ave, Lagoa Nova, Natal RN 59078-970, Brazil;
| | - Gerly Anne de Castro Brito
- Post Graduate Program Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Delmiro de Farias St, Rodolfo Teófilo, Fortaleza CE 60416-030, Brazil; (G.A.d.C.B.); (R.F.d.C.L.)
| | - Renata Ferreira de Carvalho Leitão
- Post Graduate Program Morphofunctional Sciences, Department of Morphology, Faculty of Medicine, Federal University of Ceará, Delmiro de Farias St, Rodolfo Teófilo, Fortaleza CE 60416-030, Brazil; (G.A.d.C.B.); (R.F.d.C.L.)
| | - Raimundo Fernandes de Araújo Júnior
- Post Graduate Program Functional and Structural Biology, Post Graduate Program Health Science, Department of Morphology, Federal University of Rio Grande do Norte, 3000 Senador Salgado Filho Ave, Lagoa Nova, Natal RN 59078-970, Brazil;
| | - Vinícius Barreto Garcia
- Post Graduate Program Health Science, Federal University of Rio Grande do Norte, General Gustavo Cordeiro de Faria St, Petrópolis, Natal RN 59012-570, Brazil;
| | | | - Caroline Addison Carvalho Xavier de Medeiros
- Post Graduate Program Biotechnology-RENORBIO, Federal University of Rio Grande do Norte, 3000 Senador Salgado Filho Ave, Lagoa Nova, Natal RN 59078-970, Brazil; (S.B.R.); (M.M.B.O.)
- Post Graduate Program Biochemistry and Molecular Biology, Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte, 3000 Senador Salgado Filho Ave, Lagoa Nova, Natal RN 59078-970, Brazil
- Correspondence: ; Tel.: +55-84-3342-2256
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Girão ES, de Melo Tavares B, Alves dos Santos S, Gamarra GL, Rizek C, Martins RC, Perdigão Neto LV, Diogo C, Annibale Orsi TD, Sanchez Espinoza EP, Paz Morales HM, da Silva Nogueira K, Maestri AC, Boszczowski I, Piastrelli F, Costa CL, Costa DV, Maciel G, Romão J, Guimarães T, Anne de Castro Brito G, Costa SF. Prevalence of Clostridioides difficile associated diarrhea in hospitalized patients in five Brazilian centers: A multicenter, prospective study. Anaerobe 2020; 66:102267. [DOI: 10.1016/j.anaerobe.2020.102267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/29/2020] [Accepted: 08/29/2020] [Indexed: 12/22/2022]
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Lacerda Leocádio PC, Dias RP, Pinto DV, Reis JM, Rodrigues Nascimento JC, Anne de Castro Brito G, Valença JT, Foureaux G, Ferreira AJ, Windmöller CC, Crespo-Lopez ME, Santos FA, Oriá RB, Alvarez-Leite JI. Pollutants and nutrition: Are methylmercury effects on blood pressure and lipoprotein profile comparable to high-fat diet in mice? Ecotoxicol Environ Saf 2020; 204:111036. [PMID: 32784013 DOI: 10.1016/j.ecoenv.2020.111036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 03/01/2020] [Revised: 07/10/2020] [Accepted: 07/11/2020] [Indexed: 06/11/2023]
Abstract
Human exposure to methylmercury (MeHg) due to contaminated fish intake as part of a high-fat (HFD), high-carbohydrate diets is a reality today for many populations. HFD is associated with hypertension and hyperlipidemia, primary cardiovascular disease (CVD) risk factors. Some studies suggest that MeHg induces those risk factors. We evaluated the effect of MeHg exposure in mice fed with HFD or control diet for eight weeks. In the last experimental 15 days, the half group received a MeHg solution (20 mg/L) replacing water. Blood pressure (BP), heart rate, lipoprotein concentrations, and paraoxonase activity were evaluated. Liver cholesterol, triacylglycerol, and IBA-1+ cells, as well as transcriptional levels of genes related to lipid metabolism and inflammatory response, were also assessed. HFD and both MeHg groups presented increased BP and total cholesterol (TC). In the liver, HFD but not MeHg was related to an increase in TC. Also, MeHg intoxication reduced paraoxonase activity regardless of diet. MeHg intoxication and HFD increased steatosis and the number of IBA-1+ cells and modified some gene transcripts associated with lipid metabolism. In conclusion, we demonstrated that MeHg effects on CVD risk factors resemble those caused by HFD.
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Fideles LDS, de Miranda JAL, Martins CDS, Barbosa MLL, Pimenta HB, Pimentel PVDS, Teixeira CS, Scafuri MAS, Façanha SDO, Barreto JEF, Carvalho PMDM, Scafuri AG, Araújo JL, Rocha JA, Vieira IGP, Ricardo NMPS, da Silva Campelo M, Ribeiro MENP, de Castro Brito GA, Cerqueira GS. Role of Rutin in 5-Fluorouracil-Induced Intestinal Mucositis: Prevention of Histological Damage and Reduction of Inflammation and Oxidative Stress. Molecules 2020; 25:molecules25122786. [PMID: 32560278 PMCID: PMC7356626 DOI: 10.3390/molecules25122786] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 05/09/2020] [Revised: 06/12/2020] [Accepted: 06/14/2020] [Indexed: 02/07/2023] Open
Abstract
Intestinal mucositis, characterized by inflammatory and/or ulcerative processes in the gastrointestinal tract, occurs due to cellular and tissue damage following treatment with 5-fluorouracil (5-FU). Rutin (RUT), a natural flavonoid extracted from Dimorphandra gardneriana, exhibits antioxidant, anti-inflammatory, cytoprotective, and gastroprotective properties. However, the effect of RUT on inflammatory processes in the intestine, especially on mucositis promoted by antineoplastic agents, has not yet been reported. In this study, we investigated the role of RUT on 5-FU-induced experimental intestinal mucositis. Swiss mice were randomly divided into seven groups: Saline, 5-FU, RUT-50, RUT-100, RUT-200, Celecoxib (CLX), and CLX + RUT-200 groups. The mice were weighed daily. After treatment, the animals were euthanized and segments of the small intestine were collected to evaluate histopathological alterations (morphometric analysis); malondialdehyde (MDA), myeloperoxidase (MPO), and glutathione (GSH) concentrations; mast and goblet cell counts; and cyclooxygenase-2 (COX-2) activity, as well as to perform immunohistochemical analyses. RUT treatment (200 mg/kg) prevented 5-FU-induced histopathological changes and reduced oxidative stress by decreasing MDA concentrations and increasing GSH concentrations. RUT attenuated the inflammatory response by decreasing MPO activity, intestinal mastocytosis, and COX-2 expression. These results suggest that the COX-2 pathway is one of the underlying protective mechanisms of RUT against 5-FU-induced intestinal mucositis.
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Affiliation(s)
- Lázaro de Sousa Fideles
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (L.d.S.F.); (C.d.S.M.); (M.L.L.B.); (H.B.P.); (P.V.d.S.P.); (C.S.T.); (J.E.F.B.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - João Antônio Leal de Miranda
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (L.d.S.F.); (C.d.S.M.); (M.L.L.B.); (H.B.P.); (P.V.d.S.P.); (C.S.T.); (J.E.F.B.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
- Correspondence: ; Tel.: +55-85-3366-8492
| | - Conceição da Silva Martins
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (L.d.S.F.); (C.d.S.M.); (M.L.L.B.); (H.B.P.); (P.V.d.S.P.); (C.S.T.); (J.E.F.B.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Maria Lucianny Lima Barbosa
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (L.d.S.F.); (C.d.S.M.); (M.L.L.B.); (H.B.P.); (P.V.d.S.P.); (C.S.T.); (J.E.F.B.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Helder Bindá Pimenta
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (L.d.S.F.); (C.d.S.M.); (M.L.L.B.); (H.B.P.); (P.V.d.S.P.); (C.S.T.); (J.E.F.B.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Paulo Vitor de Souza Pimentel
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (L.d.S.F.); (C.d.S.M.); (M.L.L.B.); (H.B.P.); (P.V.d.S.P.); (C.S.T.); (J.E.F.B.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Claudio Silva Teixeira
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (L.d.S.F.); (C.d.S.M.); (M.L.L.B.); (H.B.P.); (P.V.d.S.P.); (C.S.T.); (J.E.F.B.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | | | | | - João Erivan Façanha Barreto
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (L.d.S.F.); (C.d.S.M.); (M.L.L.B.); (H.B.P.); (P.V.d.S.P.); (C.S.T.); (J.E.F.B.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
- Christus University Center (Unichristus), 133 Adolfo Gurgel Street, Fortaleza 63010-475, Brazil;
| | | | - Ariel Gustavo Scafuri
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (L.d.S.F.); (C.d.S.M.); (M.L.L.B.); (H.B.P.); (P.V.d.S.P.); (C.S.T.); (J.E.F.B.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
- Scafuri Institute of Human Sexuality, 1513 Republic of Lebanon Street, Varjota, Fortaleza 60175-222, Brazil;
| | - Joabe Lima Araújo
- Department of Genetics and Morphology, s/n Darcy Ribeiro University Campus, University of Brasília, Brasília-DF 70910-900, Brazil;
| | - Jefferson Almeida Rocha
- Medicinal Chemistry and Biotechnology Research Group (QUIMEBIO), Federal University of Maranhão (UFMA), São Bernardo/MA 65550-000, Brazil;
| | - Icaro Gusmão Pinto Vieira
- Technological Development Park, Federal University of Ceará, Humberto Monte Avenue, 2977, Pici Campus, Fortaleza 60440-900, Brazil;
| | - Nágila Maria Pontes Silva Ricardo
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Pici Campus, Fortaleza 60440-900, Brazil; (N.M.P.S.R.); (M.d.S.C.); (M.E.N.P.R.)
| | - Matheus da Silva Campelo
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Pici Campus, Fortaleza 60440-900, Brazil; (N.M.P.S.R.); (M.d.S.C.); (M.E.N.P.R.)
| | - Maria Elenir Nobre Pinho Ribeiro
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Pici Campus, Fortaleza 60440-900, Brazil; (N.M.P.S.R.); (M.d.S.C.); (M.E.N.P.R.)
| | - Gerly Anne de Castro Brito
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (L.d.S.F.); (C.d.S.M.); (M.L.L.B.); (H.B.P.); (P.V.d.S.P.); (C.S.T.); (J.E.F.B.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Gilberto Santos Cerqueira
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (L.d.S.F.); (C.d.S.M.); (M.L.L.B.); (H.B.P.); (P.V.d.S.P.); (C.S.T.); (J.E.F.B.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
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Vilar CJF, Ribeiro SB, de Araújo AA, Guerra GCB, de Araújo Júnior RF, Brito GADC, Leitão RFC, Pontes DDL, Gasparotto LHDS, Oliveira MMB, Viana AD, de Medeiros WMTQ, Bezerra BGP, de Medeiros CACX. Effect of Gold Nanoparticle on 5-Fluorouracil-Induced Experimental Oral Mucositis in Hamsters. Pharmaceutics 2020; 12:pharmaceutics12040304. [PMID: 32230975 PMCID: PMC7238277 DOI: 10.3390/pharmaceutics12040304] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 09/18/2019] [Revised: 12/05/2019] [Accepted: 12/12/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Oral mucositis (OM) is a severe inflammation of the oral mucosal cells associated with chemotherapy and/or radiotherapy-induced toxicity, resulting in epithelial ulcers and higher risk of death from sepsis. The aim of the present study was to evaluate the nanoparticle (AuNp) effect on OM induced in hamsters. MATERIALS AND METHODS 5-fluorouracil (5FU) was used on the first and second day of the experimental model in Golden sirian hamsters, and on the fourth day, mechanical trauma was applied to induce OM. The animals were divided into groups, i.e., polyvinylpyrrolidone (PVP), mechanical trauma (MT), 5FU, and groups treated with gold nanoparticles (AuNps) (62.5, 125, and 250 μg/kg). On the 10th day, animals were euthanized for macroscopic, histopathological, immunohistochemical, western blot, quantitative polymerase chain reaction (qRT-PCR), and AuNp quantification. RESULTS AuNp (250 μg/kg) reduced TNF-α, IL-1β, COX-2, NF-κB, TGF-β, and SMAD 2/3; increased glutathione levels; decreased the expression of Kelch ECH-associated protein 1 (KEAP1); and induced heme oxygenase 1 (HMOX-1) and NAD (P) H quinone oxidoreductase 1 (NQO1) genes. CONCLUSIONS AuNp (250 μg/kg) prevented 5-FU-induced OM in hamsters and improved the parameters of inflammation and oxidative stress.
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Affiliation(s)
- Carmem Jane Ferreira Vilar
- Post Graduation Program in Biological Sciences, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil;
| | - Susana Barbosa Ribeiro
- Post Graduation Program in Biotechnology-RENORBIO, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil; (S.B.R.); (M.M.B.O.)
| | - Aurigena Antunes de Araújo
- Post Graduation Program in Dental Sciences/Post Graduation Program in Pharmaceutical Science/Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil;
| | - Gerlane Coelho Bernardo Guerra
- Post Graduation Program in Biological Sciences/Post Graduation Program in Pharmaceutical Science/Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil;
| | - Raimundo Fernandes de Araújo Júnior
- Post Graduation Program in Functional and Structural Biology/Post Graduation Program Health Science/Department of Morphology, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil;
| | - Gerly Anne de Castro Brito
- Post Graduation Program in Morphofunctional Sciences/Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias s/n, Rodolfo Teófilo, Fortaleza/CE 60416030, Brazil; (G.A.d.C.B.); (R.F.C.L.)
| | - Renata Ferreira Carvalho Leitão
- Post Graduation Program in Morphofunctional Sciences/Department of Morphology, Faculty of Medicine, Federal University of Ceará, Rua Delmiro de Farias s/n, Rodolfo Teófilo, Fortaleza/CE 60416030, Brazil; (G.A.d.C.B.); (R.F.C.L.)
| | - Daniel de Lima Pontes
- Post Graduation Program of Chemistry/Institute of Chemistry, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil; (D.d.L.P.); (L.H.D.S.G.); (A.D.V.); (W.M.T.Q.d.M.); (B.G.P.B.)
| | - Luiz Henrique Da Silva Gasparotto
- Post Graduation Program of Chemistry/Institute of Chemistry, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil; (D.d.L.P.); (L.H.D.S.G.); (A.D.V.); (W.M.T.Q.d.M.); (B.G.P.B.)
| | - Maisie Mitchele Barbosa Oliveira
- Post Graduation Program in Biotechnology-RENORBIO, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil; (S.B.R.); (M.M.B.O.)
| | - Anderson Dias Viana
- Post Graduation Program of Chemistry/Institute of Chemistry, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil; (D.d.L.P.); (L.H.D.S.G.); (A.D.V.); (W.M.T.Q.d.M.); (B.G.P.B.)
| | - Wendy Marina Toscano Queiroz de Medeiros
- Post Graduation Program of Chemistry/Institute of Chemistry, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil; (D.d.L.P.); (L.H.D.S.G.); (A.D.V.); (W.M.T.Q.d.M.); (B.G.P.B.)
| | - Breno Gustavo Porfírio Bezerra
- Post Graduation Program of Chemistry/Institute of Chemistry, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil; (D.d.L.P.); (L.H.D.S.G.); (A.D.V.); (W.M.T.Q.d.M.); (B.G.P.B.)
| | - Caroline Addison Carvalho Xavier de Medeiros
- Post Graduation Program in Biological Sciences, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil;
- Post Graduation Program in Biotechnology-RENORBIO, Federal University of Rio Grande do Norte, Avenida Senador Salgado Filho 3000, Lagoa Nova, Natal/RN 59078970, Brazil; (S.B.R.); (M.M.B.O.)
- Correspondence: or ; Tel.: +55-84-33422256
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21
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de Miranda JAL, Martins CDS, Fideles LDS, Barbosa MLL, Barreto JEF, Pimenta HB, Freitas FOR, Pimentel PVDS, Teixeira CS, Scafuri AG, dos Santos Luciano MC, Araújo JL, Rocha JA, Vieira IGP, Ricardo NMPS, da Silva Campelo M, Ribeiro MENP, de Castro Brito GA, Cerqueira GS. Troxerutin Prevents 5-Fluorouracil Induced Morphological Changes in the Intestinal Mucosa: Role of Cyclooxygenase-2 Pathway. Pharmaceuticals (Basel) 2020; 13:E10. [PMID: 31936203 PMCID: PMC7169416 DOI: 10.3390/ph13010010] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 12/06/2019] [Revised: 12/29/2019] [Accepted: 01/04/2020] [Indexed: 02/06/2023] Open
Abstract
Intestinal mucositis is a common complication associated with 5-fluorouracil (5-FU), a chemotherapeutic agent used for cancer treatment. Troxerutin (TRX), a semi-synthetic flavonoid extracted from Dimorphandra gardneriana, has been reported as a potent antioxidant and anti-inflammatory agent. In the present study, we aimed to evaluate the effect of TRX on 5-FU-induced intestinal mucositis. Swiss mice were randomly divided into seven groups: Saline, 5-FU, TRX-50, TRX-100, TRX-150, Celecoxib (CLX), and CLX + TRX-100. The weight of mice was measured daily. After treatment, the animals were euthanized and segments of the small intestine were collected to evaluate histopathological alterations (morphometric analysis), levels of malondialdehyde (MDA), myeloperoxidase (MPO), glutathione (GSH), mast and goblet cell counts, immunohistochemical analysis, and cyclooxygenase-2 (COX-2) activity. Compared to the saline treatment, the 5-FU treatment induced intense weight loss and reduction in villus height. TRX treatment (100 mg/kg) prevented the 5-FU-induced histopathological changes and decreased oxidative stress by decreasing the MDA levels and increasing GSH concentration. TRX attenuated inflammatory process by decreasing MPO activity, intestinal mastocytosis, and COX-2 expression. TRX also reversed the depletion of goblet cells. Our findings suggest that TRX at a concentration of 100 mg/kg had chemopreventive effects on 5-FU-induced intestinal mucositis via COX-2 pathway.
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Affiliation(s)
- João Antônio Leal de Miranda
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (C.d.S.M.); (L.d.S.F.); (M.L.L.B.); (J.E.F.B.); (H.B.P.); (F.O.R.F.); (P.V.d.S.P.); (C.S.T.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Conceição da Silva Martins
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (C.d.S.M.); (L.d.S.F.); (M.L.L.B.); (J.E.F.B.); (H.B.P.); (F.O.R.F.); (P.V.d.S.P.); (C.S.T.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Lázaro de Sousa Fideles
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (C.d.S.M.); (L.d.S.F.); (M.L.L.B.); (J.E.F.B.); (H.B.P.); (F.O.R.F.); (P.V.d.S.P.); (C.S.T.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Maria Lucianny Lima Barbosa
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (C.d.S.M.); (L.d.S.F.); (M.L.L.B.); (J.E.F.B.); (H.B.P.); (F.O.R.F.); (P.V.d.S.P.); (C.S.T.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - João Erivan Façanha Barreto
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (C.d.S.M.); (L.d.S.F.); (M.L.L.B.); (J.E.F.B.); (H.B.P.); (F.O.R.F.); (P.V.d.S.P.); (C.S.T.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Helder Bindá Pimenta
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (C.d.S.M.); (L.d.S.F.); (M.L.L.B.); (J.E.F.B.); (H.B.P.); (F.O.R.F.); (P.V.d.S.P.); (C.S.T.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Francisco Orlando Rafael Freitas
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (C.d.S.M.); (L.d.S.F.); (M.L.L.B.); (J.E.F.B.); (H.B.P.); (F.O.R.F.); (P.V.d.S.P.); (C.S.T.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Paulo Vitor de Souza Pimentel
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (C.d.S.M.); (L.d.S.F.); (M.L.L.B.); (J.E.F.B.); (H.B.P.); (F.O.R.F.); (P.V.d.S.P.); (C.S.T.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Claudio Silva Teixeira
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (C.d.S.M.); (L.d.S.F.); (M.L.L.B.); (J.E.F.B.); (H.B.P.); (F.O.R.F.); (P.V.d.S.P.); (C.S.T.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Ariel Gustavo Scafuri
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (C.d.S.M.); (L.d.S.F.); (M.L.L.B.); (J.E.F.B.); (H.B.P.); (F.O.R.F.); (P.V.d.S.P.); (C.S.T.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Maria Claudia dos Santos Luciano
- Nucleus of Research and Development of Medications (NPDM), Federal University of Ceará, Coronel Nunes of Melo Street, 100, Fortaleza 60430-275, Brazil;
| | - Joabe Lima Araújo
- Research Group in Natural Sciences and Biotechnology, Federal University of Maranhão, s/n Avenue Aurila Maria Santos Barros of Sousa, Frei Alberto Beretta, Grajaú-MA 65940-000, Brazil; (J.L.A.); (J.A.R.)
| | - Jefferson Almeida Rocha
- Research Group in Natural Sciences and Biotechnology, Federal University of Maranhão, s/n Avenue Aurila Maria Santos Barros of Sousa, Frei Alberto Beretta, Grajaú-MA 65940-000, Brazil; (J.L.A.); (J.A.R.)
| | - Icaro Gusmão Pinto Vieira
- Technological Development Park, Federal University of Ceará, Humberto Monte Avenue, 2977, Pici Campus, Fortaleza 60440-900, Brazil;
| | - Nágila Maria Pontes Silva Ricardo
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Pici Campus, Fortaleza 60440-900, Brazil; (N.M.P.S.R.); (M.d.S.C.); (M.E.N.P.R.)
| | - Matheus da Silva Campelo
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Pici Campus, Fortaleza 60440-900, Brazil; (N.M.P.S.R.); (M.d.S.C.); (M.E.N.P.R.)
| | - Maria Elenir Nobre Pinho Ribeiro
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Pici Campus, Fortaleza 60440-900, Brazil; (N.M.P.S.R.); (M.d.S.C.); (M.E.N.P.R.)
| | - Gerly Anne de Castro Brito
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (C.d.S.M.); (L.d.S.F.); (M.L.L.B.); (J.E.F.B.); (H.B.P.); (F.O.R.F.); (P.V.d.S.P.); (C.S.T.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
| | - Gilberto Santos Cerqueira
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, s/n Delmiro of Farias Street, Porangabuçu Campus, Fortaleza 60416-030, Brazil; (C.d.S.M.); (L.d.S.F.); (M.L.L.B.); (J.E.F.B.); (H.B.P.); (F.O.R.F.); (P.V.d.S.P.); (C.S.T.); (A.G.S.); (G.A.d.C.B.); (G.S.C.)
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Mafra CADCC, Vasconcelos RC, de Medeiros CACX, Leitão RFDC, Brito GADC, Costa DVDS, Guerra GCB, de Araújo RF, Medeiros AC, de Araújo AA. Gliclazide Prevents 5-FU-Induced Oral Mucositis by Reducing Oxidative Stress, Inflammation, and P-Selectin Adhesion Molecules. Front Physiol 2019; 10:327. [PMID: 30971955 PMCID: PMC6445135 DOI: 10.3389/fphys.2019.00327] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 11/01/2018] [Accepted: 03/11/2019] [Indexed: 12/27/2022] Open
Abstract
Oral mucositis (OM) is one of the main side effects of the head and neck cancer treatment, particularly radiotherapy and/or chemotherapy. OM is characterized by ulcers, erythema, dysphagia, xerostomia, and increased susceptibility to opportunistic infections. In the perspective of finding pharmacological therapies to prevent inflammation and ulceration of OM, the investigation of the pleiotropic effect of commercial drugs is needed, among them gliclazide, an antidiabetic drug. This study aimed to evaluate the effect of gliclazide in an experimental OM model induced by 5-fluorouracil. Male hamsters were pre-treated with oral gliclazide (1, 5, or 10 mg/kg) for 10 days. Cheek pouch samples were subjected to histopathological and immunohistochemical analysis (COX2, iNOS, MMP-2, NFκB P65, GPx) and imunofluorescence (P-selectin). IL-1β and TNF-α levels, Myeloperoxidase activity (MPO) and malondialdehyde (MDA) levels were investigated by ultraviolet-visible spectroscopy analysis. NFκB NLS P50 protein levels were analyzed by western blotting. The group treated with gliclazide at a dose of 10 mg/kg showed presence of erythema, no evidence of erosion, and absence of mucosal ulceration with a score of 1 (1–2) (p < 0.01). Histopathological data for the group treated with gliclazide 10 mg/kg showed re-epithelialization, discrete mononuclear inflammatory infiltrate and absence of hemorrhage, edema, ulcers and abscesses with a score of 1 (1–1) (p < 0.01). Treatment with gliclazide 10 mg/kg reduced MPO activity (p < 0.001), MDA levels (p < 0.001) and NFκB NLS P50 (p < 0.05) protein levels, resulting in low immunostaining to Cox-2, iNOS (p < 0.05), NFκB P65 (p < 0.05), and negative immunoreaction to MMP-2 (p < 0.001). However, it appeared that for Gpx1, the staining was restored in the GLI 10-FUT group compared with 5FUT/saline (p < 0.05). Immunofluorescence revealed decreased levels of P-selectin (p < 0.001) after treatment with gliclazide 10 mg/kg (p < 0.05). In summary, gliclazide accelerated mucosal recovery and reduced oxidative stress and inflammation in the 5-FU-induced OM in hamsters.
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Affiliation(s)
| | | | - Caroline Addison Carvalho Xavier de Medeiros
- Department of Biophysics and Pharmacology, UFRN, Natal, Brazil.,Postgraduate Program in Biological Science and Rede Nordeste de Biotecnologia/Renorbio, Federal University of Rio Grande Norte, Natal, Brazil
| | - Renata Ferreira de Carvalho Leitão
- Postgraduate Programs in Pharmacology and Morphology, Department of Morphology/Pharmacology, Federal University of Ceará, Fortaleza, Brazil
| | - Gerly Anne de Castro Brito
- Postgraduate Programs in Pharmacology and Morphology, Department of Morphology/Pharmacology, Federal University of Ceará, Fortaleza, Brazil
| | - Deiziane Viana da Silva Costa
- Postgraduate Programs in Pharmacology and Morphology, Department of Morphology/Pharmacology, Federal University of Ceará, Fortaleza, Brazil
| | - Gerlane Coelho Bernardo Guerra
- Postgraduate Programs in Postgraduate Program in Biological Science/Pharmaceutical Science, Department of Biophysical and Pharmacology, UFRN, Natal, Brazil
| | - Raimundo Fernandes de Araújo
- Postgraduate Programs in Functional and Structural Biology and Health Science, Department of Morphology, UFRN, Natal, Brazil
| | - Aldo Cunha Medeiros
- Postgraduate Programs in Health Science, Department of Surgery, UFRN, Natal, Brazil
| | - Aurigena Antunes de Araújo
- Postgraduate Oral Science, Postgraduate Programs in Pharmaceutical Science, Department of Biophysics and Pharmacology, Federal University of Rio Grande Norte, Natal, Brazil
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Araújo AAD, Morais HBD, Medeiros CACXD, Brito GADC, Guedes PMM, Hiyari S, Pirih FQ, Araújo Júnior RFD. Gliclazide reduced oxidative stress, inflammation, and bone loss in an experimental periodontal disease model. J Appl Oral Sci 2019; 27:e20180211. [PMID: 30810635 PMCID: PMC6382321 DOI: 10.1590/1678-7757-2018-0211] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 09/26/2018] [Indexed: 12/17/2022] Open
Abstract
Objective The aim of this study was to evaluate the effects of gliclazide on oxidative stress, inflammation, and bone loss in an experimental periodontal disease model. Material and Methods Male albino Wistar rats were divided into no ligature, ligature, and ligature with 1, 5, and 10 mg/kg gliclazide groups. Maxillae were fixed and scanned using micro-computed tomography to quantify linear and bone volume/tissue volume (BV/TV) and volumetric bone loss. Histopathological, immunohistochemical and immunofluorescence analyses were conducted to examine matrix metalloproteinase-2 (MMP-2), cyclooxygenase 2 (COX-2), cathepsin K, members of the receptor activator of the nuclear factor kappa-Β ligand (RANKL), receptor activator of nuclear factor kappa-Β (RANK), osteoprotegerin (OPG) pathway, macrophage migration inhibitory factor (MIF), superoxide dismutase-1 (SOD-1), glutathione peroxidase-1 (GPx-1), NFKB p 50 (Cytoplasm), NFKB p50 NLS (nuclear localization signal), PI3 kinase and AKT staining. Myeloperoxidase activity, malondialdehyde and glutathione levels, while interleukin-1 beta (IL-1β) and tumor necrosis factor-alpha (TNF-α) levels were evaluated by spectroscopic ultraviolet-visible analysis. A quantitative reverse transcription polymerase chain reaction was used to quantify the gene expression of the nuclear factor kappa B p50 subunit (NF-κB p50), phosphoinositide 3-kinase (PI3k), protein kinase B (AKT), and F4/80. Results Micro-computed tomography showed that the 1 mg/kg gliclazide treatment reduced linear bone loss compared to the ligature, 5 mg/kg gliclazide, and 10 mg/kg gliclazide treatments. All concentrations of gliclazide increased bone volume/tissue volume (BV/TV) compared to the ligature group. Treatment with 1 mg/kg gliclazide reduced myeloperoxidase activity, malondialdehyde, IL-1β, and TNF-α levels (p≤0.05), and resulted in weak staining for COX-2, cathepsin k, MMP-2, RANK, RANKL, SOD-1, GPx-1,MIF and PI3k. In addition, down-regulation of NF-κB p50, PI3k, AKT, and F4/80 were observed, and OPG staining was strong after the 1 mg/kg gliclazide treatment. Conclusions This treatment decreased neutrophil and macrophage migration, decreased the inflammatory response, and decreased bone loss in rats with ligature-induced periodontitis.
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Affiliation(s)
- Aurigena Antunes de Araújo
- Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em Ciências Farmacêuticas, Programa de Pós-Graduação em Saúde Pública, Departamento de Biofísica e Farmacologia, Natal, Rio Grande do Norte, Brasil
| | - Helicarlos Batista de Morais
- Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em Saúde Pública, Natal, Rio Grande do Norte, Brasil
| | - Caroline Adisson Carvalho Xavier de Medeiros
- Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação RENORBIO, Programa de Pós-Graduação em Biologia, Departamento de Biofísica e Farmacologia, Natal, Rio Grande do Norte, Brasil
| | - Gerly Anne de Castro Brito
- Universidade Federal do Ceará, Programa de Pós-Graduação em Farmacologia, Programa de Pós-Graduação em Morfologia, Departamento de Morfologia, Fortaleza, Ceará, Brasil
| | - Paulo Marcos Matta Guedes
- Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em Biologia Parasitária, Departamento de Microbiologia e Parasitologia, Natal, Rio Grande do Norte, Brasil
| | - Sarah Hiyari
- University of California, School of Dentistry, Section of Periodontics, Los Angeles, California, United States of America
| | - Flávia Q Pirih
- University of California, School of Dentistry, Section of Periodontics, Los Angeles, California, United States of America
| | - Raimundo Fernandes de Araújo Júnior
- Universidade Federal do Rio Grande do Norte, Departamento de Morfologia, Porgrama de Pós-Graduação em Biologia Funcional e Estrutural, Programa de Pós-Graduação em Ciências da Saúde, Natal, Rio Grande do Norte, Brasil
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Araújo AAD, Araújo LDS, Medeiros CACXD, Leitão RFDC, Brito GADC, Costa DVDS, Guerra GCB, Garcia VB, Lima MLDS, Araújo Junior RFD. Protective effect of angiotensin II receptor blocker against oxidative stress and inflammation in an oral mucositis experimental model. J Oral Pathol Med 2018; 47:972-984. [DOI: 10.1111/jop.12775] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/23/2018] [Accepted: 07/30/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Aurigena Antunes de Araújo
- Postgraduate Programs in Public Health and Pharmaceutical Science Department of Biophysics and Pharmacology Federal University of Rio Grande Norte Natal Brazil
| | | | - Caroline Addison Carvalho Xavier de Medeiros
- Department of Biophysics and Pharmacology UFRN Natal Brazil
- Postgraduate Program in Biological Science and Rede Nordeste de Biotecnologia/Renorbio Federal University of Rio Grande Norte Natal Brazil
| | | | - Gerly Anne de Castro Brito
- Postgraduate Programs in Pharmacology and Morphology Department of Morphology/Pharmacology Federal University of Ceará Fortaleza Brazil
| | | | - Gerlane Coelho Bernardo Guerra
- Postgraduate Programs in Postgraduate Program in Biological Science/Pharmaceutical Science Department of Biophysical and Pharmacology UFRN Natal Brazil
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Rodrigues FADP, Santos ADDC, de Medeiros PHQS, Prata MDMG, Santos TCDS, da Silva JA, Brito GADC, Dos Santos AA, Silveira ER, Lima AÂM, Havt A. Gingerol suppresses sepsis-induced acute kidney injury by modulating methylsulfonylmethane and dimethylamine production. Sci Rep 2018; 8:12154. [PMID: 30108263 PMCID: PMC6092401 DOI: 10.1038/s41598-018-30522-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 07/30/2018] [Indexed: 12/12/2022] Open
Abstract
Acute kidney injury (AKI) and metabolic dysfunction are critical complications in sepsis syndrome; however, their pathophysiological mechanisms remain poorly understood. Therefore, we evaluated whether the pharmacological properties of 6-gingerol (6G) and 10-gingerol (10G) could modulate AKI and metabolic disruption in a rat model of sepsis (faecal peritonitis). Animals from the sham and AKI groups were intraperitoneally injected with 6G or 10G (25 mg/kg). Septic AKI decreased creatinine clearance and renal antioxidant activity, but enhanced oxidative stress and the renal mRNA levels of tumour necrosis factor-α, interleukin-1β, and transforming growth factor-β. Both phenol compounds repaired kidney function through antioxidant activity related to decreased oxidative/nitrosative stress and proinflammatory cytokines. Metabolomics analysis indicated different metabolic profiles for the sham surgery group, caecal ligation and puncture model alone group, and sepsis groups treated with gingerols. 1H nuclear magnetic resonance analysis detected important increases in urinary creatine, allantoin, and dimethylglycine levels in septic rats. However, dimethylamine and methylsulfonylmethane metabolites were more frequently detected in septic animals treated with 6G or 10G, and were associated with increased survival of septic animals. Gingerols attenuated septic AKI by decreasing renal disturbances, oxidative stress, and inflammatory response through a mechanism possibly correlated with increased production of dimethylamine and methylsulfonylmethane.
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Affiliation(s)
| | | | | | - Mara de Moura Gondim Prata
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | | | - Gerly Anne de Castro Brito
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Armênio Aguiar Dos Santos
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Edilberto Rocha Silveira
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Aldo Ângelo Moreira Lima
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Alexandre Havt
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil.
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Capelo IOJ, Batista AMA, Brito YNF, Diniz KB, Brito GADC, Freitas MRD. Study of the protective effect of dexamethasone on cisplatin-induced ototoxicity in rats. Acta Cir Bras 2018; 32:873-880. [PMID: 29160374 DOI: 10.1590/s0102-865020170100000009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 09/13/2017] [Indexed: 12/20/2022] Open
Abstract
PURPOSE To evaluate the ability of dexamethasone to protect against cisplatin (CDDP)-induced ototoxicity. METHODS Male Wistar rats were divided into the following three groups: 1) Control (C): 6 animals received intraperitoneal (IP) saline solution, 8 ml/kg/day for four days; 2) C + CDDP: 11 animals received 8 ml/kg/day of IP saline and, 90 min after saline administration, 8 mg/kg/day of IP CDDP for four days; and 3) DEXA15 + CDDP: 11 animals received IP dexamethasone 15 mg/kg/day and, 90 min after dexamethasone administration, received 8 mg/kg/day of IP CDDP for four days. RESULTS It was found that dexamethasone did not protect against weight loss in CDDP-exposed animals. The mortality rate was comparable with that previously reported in the literature. The auditory threshold of animals in the DEXA15 + CDDP group was not significantly altered after exposure to CDDP. The stria vascularis of animals in the DEXA15 + CDDP group was partially preserved after CDDP exposure. CONCLUSIONS Dexamethasone at the dose of 15 mg/kg/day partially protected against CDDP-induced ototoxicity, based on functional evaluation by brainstem evoked response audiontry (BERA) and morphological evaluation by optical microscopy. However, dexamethasone did not protect against systemic toxicity.
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Affiliation(s)
- Isabelle Oliveira Jatai Capelo
- MSc, Department of Surgery, Universidade Federal do Ceará (UFC), Fortaleza-CE, Brazil. Acquisition and interpretation of data, technical procedures, manuscript preparation
| | | | | | - Krissia Braga Diniz
- Graduate student, UFC, Fortaleza-CE, Brazil. Acquisition of data, technical procedures
| | - Gerly Anne de Castro Brito
- PhD, Associate Professor, Morphology Department, School of Medicine, UFC, Fortaleza-CE, Brazil. Analysis and interpretation of data, technical procedures, critical revision
| | - Marcos Rabelo de Freitas
- PhD, Associate Professor, School of Medicine, UFC, Fortaleza-CE, Brazil. Conception, design, intellectual and scientific content of the study; analysis and interpretation of data; critical revision
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Chaves HV, do Val DR, Ribeiro KA, Lemos JC, Souza RB, Gomes FIF, da Cunha RMS, de Paulo Teixeira Pinto V, Filho GC, de Souza MHLP, Bezerra MM, de Castro Brito GA. Heme oxygenase-1/biliverdin/carbon monoxide pathway downregulates hypernociception in rats by a mechanism dependent on cGMP/ATP-sensitive K + channels. Inflamm Res 2018; 67:407-422. [PMID: 29362850 DOI: 10.1007/s00011-018-1133-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 12/14/2017] [Accepted: 01/17/2018] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE AND DESIGN To investigate the role of heme oxygenase-1 (HO-1), carbon monoxide (CO), and biliverdin (BVD) in the zymosan-induced TMJ arthritis in rats. MATERIALS AND METHODS Mechanical threshold was assessed before and 4 h after TMJ arthritis induction in rats. Cell influx, myeloperoxidase activity, and histological changes were measured in the TMJ lavages and tissues. Trigeminal ganglion and periarticular tissues were used for HO-1, TNF-α, and IL-1β mRNA time course expression and immunohistochemical analyses. Hemin (0.1, 0.3, or 1 mg kg-1), DMDC (0.025, 0.25, or 2.5 µmol kg-1), biliverdin (1, 3, or 10 mg kg-1), or ZnPP-IX (1, 3 or 9 mg kg-1) were injected (s.c.) 60 min before zymosan. ODQ (12.5 µmol kg-1; s.c.) or glibenclamide (10 mg kg-1; i.p.) was administered 1 h and 30 min prior to DMDC (2.5 µmol kg-1; s.c), respectively. RESULTS Hemin (1 mg kg-1), DMDC (2.5 µmol kg-1), and BVD (10 mg kg-1) reduced hypernociception and leukocyte migration, which ZnPP (3 mg kg-1) enhanced. The effects of DMDC were counteracted by ODQ and glibenclamide. The HO-1, TNF-α, and IL-1β mRNA expression and immunolabelling increased. CONCLUSIONS HO-1/BVD/CO pathway activation provides anti-nociceptive and anti-inflammatory effects on the zymosan-induced TMJ hypernociception in rats.
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Affiliation(s)
- Hellíada Vasconcelos Chaves
- Faculty of Dentistry of Sobral, Federal University of Ceará, Avenida Comandante Maurocélio Rocha Pontes, 100, Derby, Sobral, CEP: 62.042-280, Brazil.
| | - Danielle Rocha do Val
- Federal University of Pernambuco, North Eastern Biotechnology Network, Recife, Brazil
| | - Kátia Alves Ribeiro
- Master of Biotechnology Degree Programme, Federal University of Ceará, Sobral, Brazil
| | | | - Ricardo Basto Souza
- Master of Biotechnology Degree Programme, Federal University of Ceará, Sobral, Brazil
| | - Francisco Isaac Fernandes Gomes
- Faculty of Dentistry of Sobral, Federal University of Ceará, Avenida Comandante Maurocélio Rocha Pontes, 100, Derby, Sobral, CEP: 62.042-280, Brazil
| | | | | | | | | | | | - Gerly Anne de Castro Brito
- Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
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Martins MJB, Batista AMA, Brito YNF, Soares PMG, Martins CDS, Ribeiro RDA, Brito GADC, de Freitas MR. Effect of Remote Ischemic Preconditioning on Systemic Toxicity and Ototoxicity Induced by Cisplatin in Rats: Role of TNF-α and Nitric Oxide. ORL J Otorhinolaryngol Relat Spec 2018; 79:336-346. [PMID: 29339643 DOI: 10.1159/000485514] [Citation(s) in RCA: 3] [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: 06/19/2017] [Accepted: 11/20/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND/AIMS Cisplatin is a chemotherapeutic agent. The use of remote ischemic preconditioning (RIPC) was proposed after the observation that ischemic preconditioning of a cardiac vascular area could protect another completely distinctly. METHODS This is an experimental study. Male Wistar rats were anesthetized, and they underwent a hearing evaluation via measurement of the brainstem auditory evoked potential (BSAEP). Then, cisplatin was administered intraperitoneally (IP) at a dose of 8 mg/kg/day for 4 consecutive days to group 1, whereas saline solution was administered IP to group 2. In groups 3 and 4, ischemia of the right hind paw was performed for 10 min, followed by reperfusion for 30 min, after which cisplatin or saline was administered IP to group 3 or group 4, respectively. Afterwards, all animals were evaluated via the BSAEP. The right cochlea was dissected for immunohistochemistry. RESULTS RIPC lowered the increase in BSAEP of the animals treated with cisplatin (p = 0.0146). Weight loss decreased in the animals subjected to RIPC (p < 0.005). In group 3, RIPC reversed immunostaining for tumor necrosis factor-α and inducible nitric oxide synthase in the stria vascularis injured by cisplatin (p < 0.05). CONCLUSION RIPC protects against systemic toxicity and ototoxicity induced by cisplatin in rats.
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Dos Santos AO, do Val DR, da Silveira FD, Gomes FIF, Freitas HC, de Assis EL, de Almeida DKC, da Silva IIC, Barbosa FG, Mafezoli J, da Silva MR, de Castro Brito GA, Clemente-Napimoga JT, de Paulo Teixera Pinto VDPT, Filho GC, Bezerra MM, Chaves HV. Antinociceptive, anti-inflammatory and toxicological evaluation of semi-synthetic molecules obtained from a benzyl-isothiocyanate isolated from Moringa oleifera Lam. in a temporomandibular joint inflammatory hypernociception model in rats. Biomed Pharmacother 2018; 98:609-618. [PMID: 29289835 DOI: 10.1016/j.biopha.2017.12.102] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 12/06/2017] [Accepted: 12/20/2017] [Indexed: 01/05/2023] Open
Abstract
Inflammation is a key component of many clinical conditions that affect the temporomandibular joint (TMJ) and Moringa oleifera Lam. has been used to treat inflammatory diseases. Here, we evaluated the toxicological effects on mice of a naturally-occurring isothiocyanate from M. oleifera and its seven analogue molecules. Further, the anti-nociceptive and anti-inflammatory effects on a rat model of TMJ inflammatory hypernociception were assessed. The systemic toxicological profile was determined in mice over a 14-day period: MC-1 1 μg/kg; MC-D1 1 μg/kg, MC-D3 100 μg/kg, MC-D6 1 μg/kg, MC-D7 1 μg/kg, MC-D8 1 μg/kg, MC-D9 10 μg/kg, and MC-H 1 μg/kg. The safest molecules were assayed for anti-nociceptive efficacy in the formalin (1.5%, 50 μL) and serotonin (255 mg) induced TMJ inflammatory hypernociception tests. The anti-inflammatory effect was evaluated through the vascular permeability assay using Evans blue. Further, the rota-rod test evaluated any motor impairment. Among the tested molecules, MC-D7, MC-D9, and MC-H were not toxic at the survival rate test, biochemical, and hystological analysis. They reduced the formalin-induced TMJ inflammatory hypernociception, but only MC-H decreased the serotonin-induced TMJ inflammation, suggesting an adrenergic receptor-dependent effect. They diminished the plasmatic extravasation, showing anti-inflammatory activity. At the rota-rod test, no difference was observed in comparison with control groups, reinforcing the hypothesis of anti-nociceptive effetc without motor impairment in animals. The analogues MC-D7, MC-D9, and MC-H were safe at the tested doses and efficient in reducing the formalin-induced TMJ hypernociception in rats. Our next steps include determining their mechanisms of anti-nociceptive action.
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Affiliation(s)
- Alain Oliveira Dos Santos
- Federal University of Ceara, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, 62.042-280 Sobral, Ceará, Brazil.
| | - Danielle Rocha do Val
- North-Eastern Biotechnology Network, Federal University of Pernambuco, Avenida Professor Moraes Rego, 1235 Cidade Universitária, 50670-901 Recife, Pernambuco, Brazil.
| | - Felipe Dantas da Silveira
- Federal University of Ceara, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, 62.042-280 Sobral, Ceará, Brazil.
| | - Francisco Isaac Fernandes Gomes
- Faculty of Dentistry, Federal University of Ceara, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, 62.042-280 Sobral, Ceará, Brazil.
| | - Hermany Capistrano Freitas
- Federal University of Ceara, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, 62.042-280 Sobral, Ceará, Brazil.
| | - Ellen Lima de Assis
- Faculty of Dentistry, Federal University of Ceara, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, 62.042-280 Sobral, Ceará, Brazil.
| | - Diana Kelly Castro de Almeida
- Department of Organic and Inorganic Chemistry, Federal University of Ceara, Campus Pici. Av. Humberto Monte, 2825 - Pici, 60.440-593 Fortaleza, Ceará, Brazil.
| | - Igor Iuco Castro da Silva
- Faculty of Dentistry, Federal University of Ceara, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, 62.042-280 Sobral, Ceará, Brazil.
| | - Francisco Geraldo Barbosa
- Department of Organic and Inorganic Chemistry, Federal University of Ceara, Campus Pici. Av. Humberto Monte, 2825 - Pici, 60.440-593 Fortaleza, Ceará, Brazil.
| | - Jair Mafezoli
- Department of Organic and Inorganic Chemistry, Federal University of Ceara, Campus Pici. Av. Humberto Monte, 2825 - Pici, 60.440-593 Fortaleza, Ceará, Brazil.
| | - Marcos Reinaldo da Silva
- Department of Organic and Inorganic Chemistry, Federal University of Ceara, Campus Pici. Av. Humberto Monte, 2825 - Pici, 60.440-593 Fortaleza, Ceará, Brazil.
| | - Gerly Anne de Castro Brito
- Department of Morphology, Federal University of Ceara - Campus Porangabussu, Rua Delmiro de Farias, s/n - Rodolfo Teófilo, 60.430-170 Fortaleza, Ceará, Brazil.
| | | | | | - Gerardo Cristino Filho
- Federal University of Ceara, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, 62.042-280 Sobral, Ceará, Brazil.
| | - Mirna Marques Bezerra
- Federal University of Ceara, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, 62.042-280 Sobral, Ceará, Brazil.
| | - Hellíada Vasconcelos Chaves
- Faculty of Dentistry, Federal University of Ceara, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, 62.042-280 Sobral, Ceará, Brazil.
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Ribeiro SB, de Araújo AA, de Araújo Júnior RF, Brito GADC, Leitão RC, Barbosa MM, Garcia VB, Medeiros AC, de Medeiros CACX. Protective effect of dexamethasone on 5-FU-induced oral mucositis in hamsters. PLoS One 2017; 12:e0186511. [PMID: 29059216 PMCID: PMC5653368 DOI: 10.1371/journal.pone.0186511] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 10/03/2017] [Indexed: 01/23/2023] Open
Abstract
Oral mucositis (OM) is an important side effect of cancer treatment, characterized by ulcerative lesions in the mucosa of patients undergoing radiotherapy or chemotherapy, which has marked effects on patient quality of life and cancer therapy continuity. Considering that few protocols have demonstrated efficacy in preventing this side effect, the aim of this study was to examine the effect of dexamethasone (DEX) on OM induced by 5-fluorouracil (5-FU) in hamsters by studying signaling pathways. OM was induced in hamsters by 5-FU followed by mechanical trauma (MT) on day 4. On day 10, the animals were euthanized. The experimental groups included saline, MT, 5-FU, and DEX (0.25, 0.5, or 1 mg/kg). Macroscopic, histopathological, and immunohistochemical analyses as well as immunofluorescence experiments were performed on the oral mucosa of the animals. The oral mucosal samples were analyzed by enzyme-linked immunosorbent assays, and quantitative real-time polymerase chain reaction (qPCR). DEX (0.5 or 1 mg/kg) reduced inflammation and ulceration of the oral mucosa of hamsters. In addition, DEX (1 mg/kg) reduced the cytokine levels of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and macrophage migration inhibitory factor (MIF). DEX (1 mg/kg) also reduced the immunoexpression of cyclooxygenase (COX)-2, matrix metalloproteinase (MMP)-2, transforming growth factor (TGF)-β, MIF, Smad 2/3, Smad 2/3 phosphorylated and NFκB p65 in the jugal mucosa. Finally, DEX (1 mg/kg) increased interleukin-1 receptor-associated kinase 3 (IRAK-M), glucocorticoid-induced leucine zipper (GILZ), and mitogen-activated protein kinase (MKP1) gene expression and reduced NFκB p65 and serine threonine kinase (AKt) gene expression, relative to the 5-FU group. Thus, DEX improved OM induced by 5-FU in hamsters.
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Affiliation(s)
| | - Aurigena Antunes de Araújo
- Post Graduation Program Public Health/Post Graduation Program in Pharmaceutical Science/Department of Biophysics and Pharmacology, UFRN, Natal, RN, Brazil
| | - Raimundo Fernandes de Araújo Júnior
- Post Graduation Program in Functional and Structural Biology/Post Graduation Program Health Science/Department of Morphology, UFRN, Natal, RN, Brazil
| | | | - Renata Carvalho Leitão
- Post Graduation Program of Morphological Science/Department of Morphology, UFC, Fortaleza, CE, Brazil
| | | | | | - Aldo Cunha Medeiros
- Post Graduation Program Health Science, Department of Surgery, UFRN, Natal, RN, Brazil
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Silva VCD, Leitão RFDC, Brito GADC, Martins CDS, Freire GE, Aragão KS, Wanderley CWDS, Freitas MRD. Role of the route of leukotrienes in an experimental model of oral mucositis induced by 5-fluorouracil 1. Acta Cir Bras 2017; 32:712-725. [PMID: 29019589 DOI: 10.1590/s0102-865020170090000004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Accepted: 08/20/2017] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To investigate the participation of cysteinyl leukotrienes in the pathophysiology of oral mucositis. METHODS Oral mucositis was induced in hamsters using 5-fluorouracil (5-FU; 60 and 40 mg/kg; i.p., on days 1 and 2, respectively, and with excoriations in jugal mucosa on day 4). Montelukast (10, 20, or 40 mg/kg/d; gavage), MK886 (3 mg/kg/d, i.p.), or saline or celecoxib (7.5 mg/kg/d; i.p.) was administered 1 h prior to 5-FU and daily, until the fourth (MK886) or tenth day, when the animals were euthanized and their jugal mucosa was collected for macroscopic, histopathological, and immunohistochemical evaluation. RESULTS Neither montelukast nor MK-886 prevented the oral mucositis induced by 5-FU, as observed by histopathological evaluation. In addition, we did not find significant differences in the expression of inducible nitric oxide synthase-2, cyclooxygenase-2, or interleukin (IL)-1β between the experimental and control groups. However, we did observe a significant decrease in tumor necrosis factor (TNF)-α expression for all doses of montelukast; we also observed a significant decrease in IL-10 with 40 mg/kg/d and MK 886. CONCLUSIONS Cysteinyl leukotrienes do not play an important role in experimental oral mucositis induced by 5-FU. There is a modulating action specifically on TNF-α.
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Affiliation(s)
- Viviane Carvalho da Silva
- Fellow PhD degree, Postgraduate Program in Medical and Surgical Sciences, Department of Surgery, School of Medicine, Universidade Federal do Ceará (UFCE), Fortaleza-CE, Brazil. Conception and design of the study, acquisition and interpretation of data, statistics analysis, manuscript preparation, final approval
| | - Renata Ferreira de Carvalho Leitão
- PhD, Postgraduate Program in Morphofunctional Sciences, Department of Morphology, School of Medicine, UFCE, Fortaleza-CE, Brazil. Acquisition and interpretation of data, histopathological examinations, manuscript preparation
| | - Gerly Anne de Castro Brito
- PhD, Postgraduate Program in Morphofunctional Sciences, Department of Morphology, School of Medicine, UFCE, Fortaleza-CE, Brazil. Acquisition and interpretation of data, histopathological examinations, manuscript preparation
| | - Conceição da Silva Martins
- PhD, Postgraduate Program in Morphofunctional Sciences, Department of Morphology, School of Medicine, UFCE, Fortaleza-CE, Brazil. Acquisition and interpretation of data, histopathological examinations, manuscript preparation
| | - Gildenio Estevam Freire
- Fellow Master degree, Postgraduate Program in Morphofunctional Sciences, Department of Morphology, School of Medicine, UFCE, Fortaleza-CE, Brazil. Acquisition and interpretation of data, manuscript preparation
| | - Karoline Saboia Aragão
- PhD, Laboratory of Inflammation and Cancer Pharmacology (LAFICA), UFCE, Fortaleza-CE, Brazil. Conception and design of the study, acquisition and interpretation of data, manuscript preparation
| | | | - Marcos Rabelo de Freitas
- PhD, Postgraduate Program in Medical and Surgical Sciences, Department of Surgery, Faculty of Medicine, UFCE, Fortaleza-CE, Brazil. Conception and design of the study, interpretation of data, manuscript preparation, final approval
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de Araújo AA, Pereira ADSBF, de Medeiros CACX, Brito GADC, Leitão RFDC, Araújo LDS, Guedes PMM, Hiyari S, Pirih FQ, de Araújo Júnior RF. Effects of metformin on inflammation, oxidative stress, and bone loss in a rat model of periodontitis. PLoS One 2017; 12:e0183506. [PMID: 28847008 PMCID: PMC5573680 DOI: 10.1371/journal.pone.0183506] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 08/04/2017] [Indexed: 11/18/2022] Open
Abstract
Aim To evaluate the effects of metformin (Met) on inflammation, oxidative stress, and bone loss in a rat model of ligature-induced periodontitis. Materials & methods Male albino Wistar rats were divided randomly into five groups of twenty-one rats each, and given the following treatments for 10 days: (1) no ligature + water, (2) ligature + water, (3) ligature + 50 mg/kg Met, (4) ligature + 100 mg/kg Met, and (5) ligature + 200 mg/kg Met. Water or Met was administered orally. Maxillae were fixed and scanned using Micro-computed Tomography (μCT) to quantitate linear and bone volume/tissue volume (BV/TV) volumetric bone loss. Histopathological characteristics were assessed through immunohistochemical staining for MMP-9, COX-2, the RANKL/RANK/OPG pathway, SOD-1, and GPx-1. Additionally, confocal microscopy was used to analyze osteocalcin fluorescence. UV-VIS analysis was used to examine the levels of malondialdehyde, glutathione, IL-1β and TNF-α from gingival tissues. Quantitative RT-PCR reaction was used to gene expression of AMPK, NF-κB (p65), and Hmgb1 from gingival tissues. Significance among groups were analysed using a one-way ANOVA. A p-value of p<0.05 indicated a significant difference. Results Treatment with 50 mg/kg Met significantly reduced concentrations of malondialdehyde, IL-1β, and TNF-α (p < 0.05). Additionally, weak staining was observed for COX-2, MMP-9, RANK, RANKL, SOD-1, and GPx-1 after 50 mg/kg Met. OPG and Osteocalcin showed strong staining in the same group. Radiographically, linear measurements showed a statistically significant reduction in bone loss after 50 mg/kg Met compared to the ligature and Met 200 mg/kg groups. The same pattern was observed volumetrically in BV/TV and decreased osteoclast number (p<0.05). RT-PCR showed increased AMPK expression and decreased expression of NF-κB (p65) and HMGB1 after 50 mg/kg Met. Conclusions Metformin, at a concentration of 50 mg/kg, decreases the inflammatory response, oxidative stress and bone loss in ligature-induced periodontitis in rats.
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Affiliation(s)
- Aurigena Antunes de Araújo
- Department of Biophysics and Pharmacology, Post Graduation Program Public Health / Post Graduation Program in Pharmaceutical Science, UFRN, Natal, RN, Brazil
- * E-mail:
| | | | | | | | | | | | - Paulo Marcos Matta Guedes
- Department of Microbiology and Parasitology, Post Graduation Program in Parasitary Biology/Post Guaduation Biological Science, UFRN, Natal, RN, Brazil
| | - Sarah Hiyari
- Section of Periodontics, School of Dentistry, University of California, UCLA, Los Angeles, California, United States of America
| | - Flávia Q. Pirih
- Section of Periodontics, School of Dentistry, University of California, UCLA, Los Angeles, California, United States of America
| | - Raimundo Fernandes de Araújo Júnior
- Department of Morphology, Post Graduation Program in Functional and Structural Biology/ Post Graduation Program Health Science/Department of Morphology, UFRN, Natal, RN, Brazil
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de Araújo JCB, Gondim DV, Cavalcante ALC, Lisboa MRP, de Castro Brito GA, Vale ML. Inflammatory pain assessment in the arthritis of the temporomandibular joint in rats: A comparison between two phlogistic agents. J Pharmacol Toxicol Methods 2017; 88:100-108. [PMID: 28797764 DOI: 10.1016/j.vascn.2017.08.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 07/21/2017] [Accepted: 08/05/2017] [Indexed: 12/01/2022]
Abstract
Temporomandibular joint (TMJ) disorders are a group of conditions that result in TMJ pain, which frequently limits basic daily activities. Experimental models that allow the study of the mechanisms underlying these inflammatory and pain conditions are of great clinical relevance. The aim of this study was to evaluate nociception, inflammation and participation of the macrophage/microglia cells in the arthritis of the TMJ induced by two phlogistic agents. 84 rats were divided into 2 groups: Zy, which received zymosan intra-articularly, or Cg, which received carrageenan intra-articularly. Mechanical nociception, total leukocyte influx to the synovial fluid and histopathological analyses were evaluated in the TMJ. The participation of macrophage/microglia located in trigeminal ganglia (TG) and in the subnucleus caudalis (V-SnC) was assessed immunohistochemically. Both agents induced mechanical hyperalgesia 6h after the induction, but a more persistent algesic state was perceived in the Cg group, which lasted for 120h. Even though both groups presented increased leukocyte influx, the Zy-group presented a more intense influx. Zymosan recruited resident macrophage in the trigeminal ganglia 24h after the injection. In the V-SnC, the group Cg presented a more prolonged immunolabeling pattern in comparison with the group Zy. It can be concluded that zymosan induced a more intense infiltrate and peripheral nervous changes, while Cg lead to a moderate TMJ inflammation with prominent changes in the V-SnC.
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Affiliation(s)
| | - Delane Viana Gondim
- Morphofunctional Sciences Post Graduation Program, Department of Morphology, Federal University of Ceará, Brazil
| | - André Luiz Cunha Cavalcante
- Medical Sciences Post Graduation Program, Department of Clinical Medicine, Federal University of Ceará, Brazil
| | - Mario Roberto Pontes Lisboa
- Morphofunctional Sciences Post Graduation Program, Department of Morphology, Federal University of Ceará, Brazil
| | - Gerly Anne de Castro Brito
- Morphofunctional Sciences Post Graduation Program, Department of Morphology, Federal University of Ceará, Brazil
| | - Mariana Lima Vale
- Pharmacology Post Graduation Program, Department of Physiology and Pharmacology, Federal University of Ceará, Brazil; Morphofunctional Sciences Post Graduation Program, Department of Morphology, Federal University of Ceará, Brazil.
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de Alencar NMN, da Silveira Bitencourt F, de Figueiredo IST, Luz PB, Lima-Júnior RCP, Aragão KS, Magalhães PJC, de Castro Brito GA, Ribeiro RA, de Freitas APF, Ramos MV. Side-Effects of Irinotecan (CPT-11), the Clinically Used Drug for Colon Cancer Therapy, Are Eliminated in Experimental Animals Treated with Latex Proteins fromCalotropis procera(Apocynaceae). Phytother Res 2016; 31:312-320. [DOI: 10.1002/ptr.5752] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 10/30/2016] [Accepted: 11/04/2016] [Indexed: 12/23/2022]
Affiliation(s)
| | | | | | - Patrícia Bastos Luz
- Departamento de Fisiologia e Farmacologia/UFC; Coronel Nunes de Melo, 1127 Rodolfo Teófilo 60430-270 Ceará Brazil
| | - Roberto César P. Lima-Júnior
- Departamento de Fisiologia e Farmacologia/UFC; Coronel Nunes de Melo, 1127 Rodolfo Teófilo 60430-270 Ceará Brazil
| | - Karoline Sabóia Aragão
- Departamento de Fisiologia e Farmacologia/UFC; Coronel Nunes de Melo, 1127 Rodolfo Teófilo 60430-270 Ceará Brazil
| | - Pedro Jorge Caldas Magalhães
- Departamento de Fisiologia e Farmacologia/UFC; Coronel Nunes de Melo, 1127 Rodolfo Teófilo 60430-270 Ceará Brazil
| | | | - Ronaldo Albuquerque Ribeiro
- Departamento de Fisiologia e Farmacologia/UFC; Coronel Nunes de Melo, 1127 Rodolfo Teófilo 60430-270 Ceará Brazil
| | - Ana Paula Fragoso de Freitas
- Departamento de Fisiologia e Farmacologia/UFC; Coronel Nunes de Melo, 1127 Rodolfo Teófilo 60430-270 Ceará Brazil
| | - Marcio Viana Ramos
- Departamento de Bioquímica e Biologia Molecular/UFC; Campus do Pici, Caixa Postal 6033 60451-970 Ceará Brazil
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Freitas RS, do Val DR, Fernandes MEF, Gomes FIF, de Lacerda JTJG, SantiGadelha T, de Almeida Gadelha CA, de Paulo Teixeira Pinto V, Cristino-Filho G, Pereira KMA, de Castro Brito GA, Bezerra MM, Chaves HV. Lectin from Abelmoschus esculentus reduces zymosan-induced temporomandibular joint inflammatory hypernociception in rats via heme oxygenase-1 pathway integrity and tnf-α and il-1β suppression. Int Immunopharmacol 2016; 38:313-23. [PMID: 27344040 DOI: 10.1016/j.intimp.2016.06.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 01/24/2016] [Revised: 05/18/2016] [Accepted: 06/15/2016] [Indexed: 01/28/2023]
Abstract
Temporomandibular joint (TMJ) disorders show inflammatory components, heavily impacting on quality of life. Abelmoschus esculentus is largely cultivated in Northeastern Brazil for medicinal purposes, having it shown anti-inflammatory activity. We evaluated A. esculentus lectin (AEL) efficacy in reducing zymosan-induced temporomandibular joint inflammatory hypernociception in rats along with the mechanism of action through which it exerts anti-inflammatory activity. Animals were pre-treated with AEL (0.01, 0.1 or 1mg/kg) before zymosan (Zy) injection in the TMJ to determine anti-inflammatory activity. To analyse the possible effect of the hemeoxygenase-1 (HO-1) and the nitric oxide (NO) pathways on AEL efficacy, animals were pre-treated with ZnPP-IX (3mg/kg), a specific HO-1 inhibitor, or aminoguanidine (30mg/kg), a selective iNOS inhibitor, before AEL administration. Von Frey test evaluated inflammatory hypernociception, synovial fluid collection was performed to determine leukocyte counting and myeloperoxidase (MPO) activity 6h after Zy injection, and Evans Blue extravasation determined vascular permeability. TMJ tissue was collected for histopathological analysis (H&E) and immunohistochemistry (TNF-α, IL-1β, HO-1). In addition, TMJ tissue and trigeminal ganglion collection was performed for TNF-α and IL-1β dosage (ELISA). AEL increased inflammatory nociceptive threshold, reduced leukocyte influx along with MPO activity, leukocyte influx into the synovial membrane, and Evans Blue extravasation. It promoted HO-1 overexpression whilst decreased TNF-α and IL-1β expression in the TMJ tissue. AEL reduced TNF-α and IL-1β levels in TMJ tissue and trigeminal ganglion. AEL effects, however, were not observed in the presence of ZnPP-IX. These findings suggest that AEL efficacy depends on TNF-α/IL-1β inhibition and HO-1 pathway integrity.
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Affiliation(s)
- Raul Sousa Freitas
- Master in Biotechnology, Federal University of Ceará, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, CEP: 62.042-280 Sobral, Ceará, Brazil.
| | - Danielle Rocha do Val
- Northeast Biotechnology Network (Renorbio), Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235 Cidade Universitária, CEP: 50670-901 Recife, Pernambuco, Brazil.
| | - Maria Ester Frota Fernandes
- Faculty of Dentistry, Federal University of Ceará, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, CEP: 62.042-280 Sobral, Ceará, Brazil.
| | - Francisco Isaac Fernandes Gomes
- Faculty of Dentistry, Federal University of Ceará, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, CEP: 62.042-280 Sobral, Ceará, Brazil.
| | | | - Tatiane SantiGadelha
- Department of Molecular Biology, Federal University of Paraíba, Cidade Universitária, CEP: 58059-900 João Pessoa, Paraíba, Brazil.
| | | | - Vicente de Paulo Teixeira Pinto
- Faculty of Medicine, Federal University of Ceará, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, CEP: 62.042-280 Sobral, Ceará, Brazil.
| | - Gerardo Cristino-Filho
- Faculty of Medicine, Federal University of Ceará, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, CEP: 62.042-280 Sobral, Ceará, Brazil.
| | - Karuza Maria Alves Pereira
- Faculty of Dentistry, Federal University of Ceará, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, CEP: 62.042-280 Sobral, Ceará, Brazil.
| | - Gerly Anne de Castro Brito
- Department of Morphology, Federal University of Ceará, Rua Delmiro de Farias, Porangabussu, CEP:60440-261 Fortaleza, Ceará, Brazil.
| | - Mirna Marques Bezerra
- Northeast Biotechnology Network (Renorbio), Federal University of Pernambuco, Av. Prof. Moraes Rego, 1235 Cidade Universitária, CEP: 50670-901 Recife, Pernambuco, Brazil.
| | - Hellíada Vasconcelos Chaves
- Faculty of Dentistry, Federal University of Ceará, Avenida Comandante Maurocélio Rocha Pontes, 100 Derby, CEP: 62.042-280 Sobral, Ceará, Brazil.
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Costa CL, López-Ureña D, de Oliveira Assis T, Ribeiro RA, Silva ROS, Rupnik M, Wilcox MH, de Carvalho AF, do Carmo AO, Dias AAM, de Carvalho CBM, Chaves-Olarte E, Rodríguez C, Quesada-Gómez C, de Castro Brito GA. A MLST Clade 2 Clostridium difficile strain with a variant TcdB induces severe inflammatory and oxidative response associated with mucosal disruption. Anaerobe 2016; 40:76-84. [PMID: 27311833 DOI: 10.1016/j.anaerobe.2016.06.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 02/14/2016] [Revised: 06/10/2016] [Accepted: 06/12/2016] [Indexed: 01/13/2023]
Abstract
The epidemiology of Clostridium difficile infections is highly dynamic as new strains continue to emerge worldwide. Here we present a detailed analysis of a new C. difficile strain (ICC-45) recovered from a cancer patient in Brazil that died from severe diarrhea. A polyphasic approach assigned a new PCR-ribotype and PFGE macrorestriction pattern to strain ICC-45, which is toxigenic (tcdA(+), tcdB(+) and ctdB(+)) and classified as ST41 from MLST Clade 2 and toxinotype IXb. Strain ICC-45 encodes for a variant TcdB that induces a distinct CPE in agreement with its toxinotype. Unlike epidemic NAP1/027 strains, which are also classified to MLST Clade 2, strain ICC-45 is susceptible to fluoroquinolones and does not overproduce toxins TcdA and TcdB. However, supernatants from strain ICC-45 and a NAP1/027 strain produced similar expression of pro-inflammatory cytokines, epithelial damage, and oxidative stress response in the mouse ileal loop model. These results highlight inflammation and oxidative stress as common features in the pathogenesis of C. difficile Clade 2 strains. Finally, this work contributes to the description of differences in virulence among various C. difficile strains.
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Affiliation(s)
- Cecília Leite Costa
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil; Laboratory of Bacteriology, Department of Pathology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Diana López-Ureña
- Facultad de Microbiología and Centro de Investigación en Enfermedades Tropicales, Universidad de Costa Rica, San José, Costa Rica
| | - Thiago de Oliveira Assis
- Department of Morphology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil; Department of Morphology, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Ronaldo A Ribeiro
- Haroldo Juaçaba Hospital, Cancer Institute of Ceará, Fortaleza, CE, Brazil; Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Maja Rupnik
- University of Maribor, Faculty of Medicine and National Laboratory for Health, Environment and Food, Maribor, Slovenia
| | - Mark H Wilcox
- Department of Microbiology, Leeds Teaching Hospitals NHS Trust, The General Infirmary, Leeds, UK
| | - Alex Fiorini de Carvalho
- Experimental Genetics and Laboratory Animal Science, Department of General Biology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Anderson Oliveira do Carmo
- Experimental Genetics and Laboratory Animal Science, Department of General Biology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Adriana Abalen Martins Dias
- Experimental Genetics and Laboratory Animal Science, Department of General Biology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Cibele Barreto Mano de Carvalho
- Laboratory of Bacteriology, Department of Pathology, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Esteban Chaves-Olarte
- Facultad de Microbiología and Centro de Investigación en Enfermedades Tropicales, Universidad de Costa Rica, San José, Costa Rica
| | - César Rodríguez
- Facultad de Microbiología and Centro de Investigación en Enfermedades Tropicales, Universidad de Costa Rica, San José, Costa Rica
| | - Carlos Quesada-Gómez
- Facultad de Microbiología and Centro de Investigación en Enfermedades Tropicales, Universidad de Costa Rica, San José, Costa Rica.
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Vieira LL, de Lima Soares RG, da Silva Felipe SM, de Moura FC, de Castro Brito GA, Pacheco C, Soares PM. Physiological targets for the treatment of diabetic encephalopathy. Cent Nerv Syst Agents Med Chem 2016:CNSAMC-EPUB-75232. [PMID: 27121380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 04/27/2016] [Accepted: 04/27/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Diabetes mellitus is a chronic degenerative disease responsible for hyperglycemic episodes through insulin secretion deficiency or cellular resistance. Clinical diagnosis in diabetic patients established that this disease affects the CNS, damaging the brain and impairing cognition, and thus establishing a clinical diabetic condition named diabetic encephalopathy. Despite the physiological mechanisms responsible for the development diabetic encephalopathy are still unclear, an excessive formation of reactive oxygen species, an alteration of acetylcholinesterase activity, and a reduction of growth factor levels, may be related with the pathogenesis of this condition. Pharmacological treatments with natural compounds have been proven useful to treat and cure a wide variety of diseases through their antioxidant actions. METHODS This study built a compendium of chemical compounds used for the treatment of diabetic encephalopathy demonstrating the most important physiological targets that future drugs should aim for, reviewing them. RESULTS As previously suspected, antioxidants and acetylcholinesterase inhibitors were useful to prevent memory loss in streptozotocin-induced animals. In addition, growth factors showed an improvement of memory in diabetic rodents. Most studies focused on antioxidant compounds despite cross studies researched both antioxidants and acetylcholinesterase activities. CONCLUSION Therefore, it could be suggested that future studies regarding treatments for diabetic encephalopathy should focus on the antioxidant profile and acetylcholinesterase, since they seem to play pivotal roles in cognitive impairment in diabetes. No less important, studies with growth factors are also important physiological targets for treating the diabetic encephalopathy.
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Affiliation(s)
- Lucas Lima Vieira
- Ceara State University Av. Dr. Silas Munguba, 1700, Campus do Itaperi, Fortaleza-CE.
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de Araújo Júnior RF, Garcia VB, Leitão RFDC, Brito GADC, Miguel EDC, Guedes PMM, de Araújo AA. Carvedilol Improves Inflammatory Response, Oxidative Stress and Fibrosis in the Alcohol-Induced Liver Injury in Rats by Regulating Kuppfer Cells and Hepatic Stellate Cells. PLoS One 2016; 11:e0148868. [PMID: 26891124 PMCID: PMC4758650 DOI: 10.1371/journal.pone.0148868] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 01/25/2016] [Indexed: 12/14/2022] Open
Abstract
Aim To evaluate the anti-inflammatory, anti-oxidant and antifibrotic effects of carvedilol (CARV) in rats with ethanol-induced liver injury. Methods Liver injury was induced by gavage administration of alcohol (7 g/kg) for 28 consecutive days. Eighty Wistar rats were pretreated with oral CARV at 1, 3, or 5 mg/kg or with saline 1 h before exposure to alcohol. Liver homogenates were assayed for interleukin (IL)-1β, IL-10, and tumor necrosis factor (TNF)-α level as well as for myeloperoxidase (MPO) activity and malonyldialdehyde (MDA) and glutathione (GSH) levels. Serum aspartate aminotransferase (AST) activity and liver triglyceride (TG) levels were also assayed. Immunohistochemical analyses of cyclooxygenase 2 (COX-2), receptor activator of nuclear factor kappa-B/ligand (RANK/RANKL), suppressor of cytokine signalling (SOCS1), the Kupffer cell marker IBA-1 (ionized calcium-binding adaptor molecule 1), intercellular adhesion molecule 1 (ICAM-1), superoxide dismutase (SOD-1), and glutathione peroxidase (GPx-1) expression were performed. Confocal microscopy analysis of IL-1β and NF-κB expression and real-time quantitative PCR analysis for TNFα, PCI, PCIII, and NF-κB were performed. Results CARV treatment (5 mg/kg) during the alcohol exposure protocol was associated with reduced steatosis, hepatic cord degeneration, fibrosis and necrosis, as well as reduced levels of AST (p < 0.01), ALT (p < 0.01), TG (p < 0.001), MPO (p < 0.001), MDA (p < 0.05), and proinflammatory cytokines (IL-1β and TNF-α, both p < 0.05), and increased levels of the anti-inflammatory cytokine IL-10 (p < 0.001) and GSH (p < 0.05), compared to the alcohol-only group. Treatment with CARV 5 mg/kg also reduced expression levels of COX-2, RANK, RANKL, IBA-1, and ICAM-1 (all p < 0.05), while increasing expression of SOCS1, SOD-1, and GPx-1 (all p < 0.05) and decreasing expression of IL-1β and NF-κB (both, p < 0.05). Real-time quantitative PCR analysis showed that mRNA production of TNF-α, procollagen type I (PCI), procollagen type III (PCIII), and NF-κB were decreased in the alcohol-CARV 5 mg/kg group relative to the alcohol-only group. Conclusions CARV can reduce the stress oxidative, inflammatory response and fibrosis in ethanol-induced liver injury in a rat model by downregulating signalling of Kuppfer cells and hepatic stellate cells (HSCs) through suppression of inflammatory cytokines.
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Affiliation(s)
- Raimundo Fernandes de Araújo Júnior
- Postgraduate Program in Health Science, UFRN, Natal, RN, Brazil
- Postgraduate Program in Functional and Structural Biology/Department of Morphology/UFRN, Natal, RN, Brazil
- * E-mail:
| | | | | | | | | | | | - Aurigena Antunes de Araújo
- Department of Biophysics and Pharmacology, UFRN, Postgraduate Programs in Public Health and Pharmaceutical Science, Natal, RN, Brazil
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de Alcântara GFT, Simões-Neto E, da Cruz GMP, Nobre MEP, Neves KRT, de Andrade GM, Brito GADC, Viana GSDB. Curcumin reverses neurochemical, histological and immuno-histochemical alterations in the model of global brain ischemia. J Tradit Complement Med 2016; 7:14-23. [PMID: 28053883 PMCID: PMC5198799 DOI: 10.1016/j.jtcme.2015.10.001] [Citation(s) in RCA: 20] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 10/02/2015] [Accepted: 10/07/2015] [Indexed: 01/05/2023] Open
Abstract
Curcumin, a curcuminoid from Curcuma longa, presents antioxidant and anti-inflammatory actions and, among pathological changes of cerebral ischemic injury, inflammation is an important one. The objectives were to study the neuroprotective action of curcumin, in a model of global ischemia. Male Wistar rats (sham-operated, ischemic untreated and ischemic treated with curcumin, 25 or 50 mg/kg, p.o.) were anesthesized and their carotid arteries occluded, for 30 min. The SO group had the same procedure, except for carotid occlusion. In the 1st protocol, animals were treated 1 h before ischemia and 24 h later; and in the 2nd protocol, treatments began 1 h before ischemia, continuing for 7 days. Twenty four hours after the last administration, animals were euthanized and measurements for striatal monoamines were performed, at the 1st and 7th days after ischemia, as well as histological and immunohistochemical assays in hippocampi. We showed in both protocols, depletions of DA and its metabolites (DOPAC and HVA), in the ischemic group, but these effects were reversed by curcumin. Additionally, a decrease seen in 5-HT contents, 1 day after ischemia, was also reversed by curcumin. This reversion was not seen 7 days later. On the other hand, a decrease observed in NE levels, at the 7th day, was totally reversed by curcumin. Furthermore, curcumin treatments increased neuronal viability and attenuated the immunoreactivity for COX-2 and TNF-alpha, in the hippocampus in both protocols. We showed that curcumin exerts neuroprotective actions, in a model of brain ischemia that are probably related to its anti-inflammatory activity.
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Affiliation(s)
| | | | | | | | | | | | | | - Glauce Socorro de Barros Viana
- Faculty of Medicine Estácio of Juazeiro do Norte, Brazil; Faculty of Medicine of the Federal University of Ceará, Brazil
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Campelo APBS, Campelo MWS, Brito GADC, Jamacaru FVF, Leitão RFDC, Vasconcelos PRLD. Oil mixes omega 9, 6 and 3, enriched with seaweed, promoted reduction of thermal burned modulating NF-kB and Ki-67. Acta Cir Bras 2015; 30:430-8. [PMID: 26108032 DOI: 10.1590/s0102-865020150060000009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 05/09/2015] [Indexed: 01/14/2023] Open
Abstract
PURPOSE To examine the effects of the oil mixes (ω-9, ω-6 and ω-3) in rats subjected to thermal burn. It was also aimed to assess whether the sources of ω3 would interfere with the effect of such mixes on the thermal injury. METHODS Thirty-six rats distributed into five groups: burned + water, burned + isolipid mix, burned + oil mix 1 (ALA), burned + oil mix 2 (ALA + EPA + DHA of fish) and burned + oil mix 3 (ALA + DHA from seaweed). The thermal injury was involving total thickness of skin. After the burns animals received the oil mixes for seven days. The lesions were evaluated by immunohistochemistry. RESULTS Animals receiving mix 3 showed a smaller extension of the thermal injury as compared to those that were supplemented with other oils mixes. Expression of Ki-67 in the receiving Mix 3 increased as compared to all the other groups. Animals supplemented with mix 3 were able to inhibit NF-κB in injured tissue. CONCLUSION Rats received oil mix in which the source of ω3 (ALA+DHA of seaweed) showed inhibition of NF-κB, increase in cell proliferation, and reduction the extension of thermal lesion.
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Silva JJDL, Pompeu DG, Ximenes NC, Duarte ASG, Gramosa NV, Carvalho KDM, Brito GADC, Guimarães SB. Effects of Kaurenoic Acid and Arginine on Random Skin Flap Oxidative Stress, Inflammation, and Cytokines in Rats. Aesthetic Plast Surg 2015; 39:971-7. [PMID: 26408387 DOI: 10.1007/s00266-015-0559-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [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: 05/09/2015] [Accepted: 08/18/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND Kaurenoic acid (KA), a diterpene extracted from copaíba oil-resin, is known to have potent antioxidant and anti-inflammatory properties. L-Arginine (LA) is an amino acid and a nitrogenous precursor for the synthesis of nitric oxide (NO). NO paper in wound healing has already been well documented. The aim of this study was to investigate the protective effects of LA and KA against ischemia reperfusion injury in a randomized skin flap model in rats. METHODS A modified McFarlane flap model measuring 2.5 wide × 8 cm long was established in 36 anesthetized rats and evaluated within 3 groups: group control, group L-arginine, and group kaurenoic acid. Each group was subdivided into two subgroups (T1 and T2, n = 6 each). Samples were collected 24 h (T1)/48 h (T2) postoperatively for oxidative stress (glutathione), as non-protein thiols, malondialdehyde (MDA), NO2, inflammation [myeloperoxidase (MPO)], and cytokines TNF-α and IL-1β assays. RESULTS KA promoted a significant decrease of TNF-α and IL-1 expression and MPO activity at T1/T2 time points. NSGH levels increased significantly in KA-treated rats, while MDA levels decreased significantly in the same rats. Arginine promoted a significant decrease in MDA levels at the T1 time point and a significant increase in non-protein thiols concentrations at T1/T2 time points. NO2 concentration also decreased at the T1 time point. CONCLUSIONS KA may attenuate the oxidative stress and the inflammation, thereby reducing tissue damage induced by ischemia/reperfusion in rats subjected to dorsal skin flaps. NO LEVEL ASSIGNED This journal requires that authors assign a level of evidence to each submission to which Evidence-Based Medicine rankings are applicable. This excludes Review Articles, Book Reviews, and manuscripts that concern Basic Science, Animal Studies, Cadaver Studies, and Experimental Studies. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors http://www.springer.com/00266.
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Affiliation(s)
- Joaquim José de Lima Silva
- Department of Surgery, Federal University of Ceará (UFC), Rua Professor Costa Mendes, 1608/3º andar, Bloco Didático, Fortaleza, CE, 60430-140, Brazil.
| | - Débora Gramosa Pompeu
- Course of Chemical Engineering (UFC), Av. da Universidade, 2853 - Benfica, Fortaleza, CE, 60020-181, Brazil.
| | - Naiara Coelho Ximenes
- Faculty of Pharmacy, Dentistry and Nursing (UFC), Rua Alexandre Baraúna, 949 - Rodolfo Teófilo, Fortaleza, CE, 60430-160, Brazil.
| | | | - Nilce Viana Gramosa
- Department of Organic and Inorganic Chemistry (UFC), Campus do Pici, bloco 940 Bairro Pici, Fortaleza, CE, 60451-970, Brazil.
| | - Krishnamurti de Morais Carvalho
- Clinical Pharmacology and Molecular Laboratory, School of Medicine, Ceara State University (UECE), Av. Dr. Silas Muguba, 1700 - Campus do Itaperi, Fortaleza, CE, 60740-000, Brazil.
| | - Gerly Anne de Castro Brito
- Department of Morphology (UFC), Rua Delmiro de Farias s/n - Rodolfo Teófilo, Fortaleza, CE, 60416-030, Brazil.
| | - Sergio Botelho Guimarães
- Department of Surgery, Federal University of Ceará (UFC), Rua Professor Costa Mendes, 1608/3º andar, Bloco Didático, Fortaleza, CE, 60430-140, Brazil.
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Garcia FADO, Rebouças JF, Balbino TQ, da Silva TG, de Carvalho-Júnior CHR, Cerqueira GS, Brito GADC, Viana GSDB. Pentoxifylline reduces the inflammatory process in diabetic rats: relationship with decreases of pro-inflammatory cytokines and inducible nitric oxide synthase. J Inflamm (Lond) 2015; 12:33. [PMID: 25922592 PMCID: PMC4411660 DOI: 10.1186/s12950-015-0080-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 04/15/2015] [Indexed: 12/18/2022]
Abstract
Studies suggest that inflammation is a key factor in the pathogenesis of diabetes mellitus. Pro-inflammatory cytokines, such as IL-6 and TNF-alpha, are produced by adipose tissue in large quantities, in obese and especially in diabetic individuals. Pentoxifylline (PTX) is a non-selective phosphodiesterase inhibitor with anti-inflammatory and antioxidant actions that may contribute to alleviate diabetes side effects, as neuropathy, retinopathy and nephropathy. This study aims to investigate PTX anti-inflammatory effects on the carrageenan-induced paw edema model, in alloxan-induced diabetic rats. Diabetic animals (male Wistar rats, 200–250 g) were daily treated with PTX (25, 50, 100 mg/kg, p.o.), glibenclamide (GLI, 5 mg/kg, p.o., as reference) or water, for 5 days. Afterwards, carrageenan-treated paws were dissected, their skin removed and the tissue used for preparation of homogenates and measurements of IL-6 and TNF-alpha by Elisa. Serum levels of nitrite were also determined and paw slices used for iNOS immunohistochemistry assays. We showed that diabetic rats presented an amplification of the inflammatory response, as related to non-diabetic rats, what was evident 48 h after the edema-induction. The PTX-treatment of diabetic rats reduced glycemia (as related to untreated-diabetic ones) and the paw edema. It also brought edema volumes to values similar to those of non-diabetic rats, at the same observation time. The increased TNF-alpha and IL-6 levels in paws of untreated-diabetic rats were reduced in diabetic animals after PTX treatments. Besides, the increased levels of nitrite in the serum of diabetic rats were also decreased by PTX. Furthermore, a higher number of iNOS immunostained cells was demonstrated in paw tissues from untreated-diabetic rats, as related to those of PTX-treated diabetic animals. Our results show that PTX reduces inflammatory parameters, as pro-inflammatory cytokines and iNOS expression, indicating the potential benefit of the drug for the treatment of diabetes and related pathologic conditions.
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Affiliation(s)
| | | | | | | | | | - Gilberto Santos Cerqueira
- Faculty of Medicine of the Federal University of Ceará, Rua Barbosa de Freitas, 130/1100, Fortaleza, CEP: 60170-020 Brazil
| | - Gerly Anne de Castro Brito
- Faculty of Medicine of the Federal University of Ceará, Rua Barbosa de Freitas, 130/1100, Fortaleza, CEP: 60170-020 Brazil
| | - Glauce Socorro de Barros Viana
- Faculty of Medicine Estácio of Juazeiro do Norte, Juazeiro do Norte, Brazil ; Faculty of Medicine of the Federal University of Ceará, Rua Barbosa de Freitas, 130/1100, Fortaleza, CEP: 60170-020 Brazil
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Coelho-Aguiar JDM, Bon-Frauches AC, Gomes ALT, Veríssimo CP, Aguiar DP, Matias D, Thomasi BBDM, Gomes AS, Brito GADC, Moura-Neto V. The enteric glia: identity and functions. Glia 2015; 63:921-35. [PMID: 25703790 DOI: 10.1002/glia.22795] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Accepted: 01/07/2015] [Indexed: 01/04/2023]
Abstract
Enteric glial cells were first described at the end of the 19th century, but they attracted more interest from researchers only in the last decades of the 20th. Although, they have a different embryological origin, the enteric GLIA share many characteristics with astrocytes, the main glial cell type of the central nervous system (CNS), such as in their expression of the same markers and in their functions. Here we review the construction of the enteric nervous system (ENS), with a focus on enteric glia, and also the main studies that have revealed the action of enteric glia in different aspects of gastrointestinal tract homeostasis, such as in the intestinal barrier, in communications with neurons, and in their action as progenitor cells. We also discuss recent discoveries about the roles of enteric glia in different disorders that affect the ENS, such as degenerative pathologies including Parkinson's and prion diseases, and in cases of intestinal diseases and injury.
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Affiliation(s)
- Juliana de Mattos Coelho-Aguiar
- Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria de Estado de Saúde do Rio de Janeiro - SES/RJ, Rio de Janeiro, Brazil; Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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de Araújo AA, Varela H, de Medeiros CACX, de Castro Brito GA, de Lima KC, de Moura LM, de Araújo RF. Azilsartan reduced TNF-α and IL-1β levels, increased IL-10 levels and upregulated VEGF, FGF, KGF, and TGF-α in an oral mucositis model. PLoS One 2015; 10:e0116799. [PMID: 25689279 PMCID: PMC4331549 DOI: 10.1371/journal.pone.0116799] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 12/14/2014] [Indexed: 12/31/2022] Open
Abstract
Oral mucositis (OM) is a common complication of treatments for head and neck cancer, particularly radiotherapy with or without chemotherapy. OM is characterised by oral erythema, ulceration, and pain. The aim of this study was to evaluate the effect of azilsartan (AZT), an angiotensin II receptor antagonist, on 5-fluorouracil (5-FU)-induced oral mucositis (OM) in Syrian hamsters. OM was induced by the intraperitoneal administration of 5-FU on experimental days 1 (60 mg/Kg) and 2 (40 mg/Kg). Animals were pretreated with oral AZT (1, 5, or 10 mg/kg) or vehicle 30 min before 5-FU injection and daily until day 10. Experimental treatment protocols were approved by the Animal Ethics Committee Use/CEUA (Number 28/2012) of the UFRN. Macroscopic analysis and cheek pouch samples were removed for histopathologic analysis. Myeloperoxidase (MPO), Malonyldialdehyde (MDA), interleukin-1 beta (IL-1β), interleukin-10 (IL-10), and tumour necrosis factor-alpha (TNF-α) were analysed by Enzyme Linked Immuno Sorbent Assay (ELISA). Vascular endothelial growth factor (VEGF), fibroblast growth factor (FGF), keratinocyte growth factor (KGF), and transforming growth factor (TGF)-α were measured by immunohistochemistry. Analysis of variance followed by Bonferroni's test was used to calculate the means of intergroup differences (p ≤ 0.05). Treatment with 1 mg/kg AZT reduced levels MPO (p<0.01), MDA (p<0.5) and histological inflammatory cell infiltration, and increased the presence of granulation tissue. AZT treatment at 1 mg/kg reduced the TNF-α (p<0.05) and IL-1β (p<0.05) levels, increased the cheek pouch levels of IL-10 (p<0.01), and upregulated VEGF, FGF, KGF, and TGF-α. Administration of AZT at higher doses (5 and 10 mg/kg) did not significantly reverse the OM. AZT at a dose of 1 mg/kg prevented the mucosal damage and inflammation associated with 5-FU-induced OM, increasing granulation and tissue repair.
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Affiliation(s)
- Aurigena Antunes de Araújo
- Postgraduate Programs in Public Health and Pharmaceutical Science, Department of Biophysics and Pharmacology, Federal University of Rio Grande Norte (UFRN), Natal, RN, Brazil
- * E-mail:
| | - Hugo Varela
- Postgraduate Program in Public Health, UFRN, Natal, RN, Brazil
| | | | - Gerly Anne de Castro Brito
- Postgraduate Program in Pharmacology and Morphology, Department of Morphology, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Kênio Costa de Lima
- Postgraduate Program in Public Health and Health Science, Department of Dentistry, UFRN, Natal, RN, Brazil
| | - Ligia Moreno de Moura
- Postgraduate Program in Public Health, UFRN; and University Potiguar (UnP), Natal, RN, Brazil
| | - Raimundo Fernandes de Araújo
- Postgraduate Program in Functional & Structural Biology and Health Science, Department of Morphology, UFRN, Natal, RN, Brazil
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Goes ACADM, Pinto FMM, Fernandes GC, Barbosa JS, Correia ES, Ribeiro RA, Guimaraes SB, Lima Júnior RCP, Brito GADC, Rodrigues LV. Electroacupuncture ameliorates experimental colitis induced by TNBS through activation of interleukin-10 and inhibition of iNOS in mice. Acta Cir Bras 2014; 29:787-93. [DOI: 10.1590/s0102-86502014001900004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 11/11/2014] [Indexed: 11/22/2022] Open
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Costa CL, Quesada-Gómez C, Carvalho CBMD, González RH, Gifoni MA, Ribeiro RA, Brito GADC. Community-acquired diarrhea associated with Clostridium difficile in an HIV-positive cancer patient: first case report in Latin America. Int J Infect Dis 2014; 26:138-9. [DOI: 10.1016/j.ijid.2014.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 06/09/2014] [Accepted: 06/11/2014] [Indexed: 10/25/2022] Open
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Costa MLV, Lima-Júnior RCP, Aragão KS, Medeiros RP, Marques-Neto RD, de Sá Grassi L, Leite LL, Nunes LG, de Mesquita Neto JWB, de Castro Brito GA, de Souza MHLP, de Almeida PRC, Ribeiro RA. Chemotherapy-associated steatohepatitis induced by irinotecan: a novel animal model. Cancer Chemother Pharmacol 2014; 74:711-20. [DOI: 10.1007/s00280-014-2434-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 03/02/2014] [Indexed: 12/13/2022]
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de Araújo AA, Varela H, Brito GADC, de Medeiros CACX, Araújo LDS, do Nascimento JHO, de Araújo Júnior RF. Azilsartan increases levels of IL-10, down-regulates MMP-2, MMP-9, RANKL/RANK, Cathepsin K and up-regulates OPG in an experimental periodontitis model. PLoS One 2014; 9:e96750. [PMID: 24819928 PMCID: PMC4018354 DOI: 10.1371/journal.pone.0096750] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 04/10/2014] [Indexed: 01/17/2023] Open
Abstract
Aims The aim of this study was to evaluate the effects of azilsartan (AZT) on bone loss, inflammation, and the expression of matrix metallo proteinases (MMPs), receptor activator of nuclear factor κB ligand (RANKL), receptor activator of nuclear factor κB (RANK), osteoprotegerin (OPG), cyclooxygenase-2 (COX-2), and cathepsin K in periodontal tissue in a rat model of ligature-induced periodontitis. Materials and Methods Male Wistar albino rats were randomly divided into 5 groups of 10 rats each: (1) nonligated, water; (2) ligated, water; (3) ligated, 1 mg/kg AZT; (4) ligated, 5 mg/kg AZT; and (5) ligated, 10 mg/kg AZT. All groups were treated with saline or AZT for 10 days. Periodontal tissues were analyzed by histopathology and immunohistochemical detection of MMP-2, MMP-9, COX-2, RANKL, RANK, OPG, and cathepsin K. Levels of IL-1β, IL-10, TNF-α, myeloperoxidase (MPO), and glutathione (GSH) were determined by ELISA. Results Treatment with 5 mg/kg AZT resulted in reduced MPO (p<0.05) and IL-1β (p<0.05), increased levels of IL-10 (p<0.05), and reduced expression of MMP-2, MMP-9, COX-2, RANK, RANKL, cathepsin K, and increased expression of OPG. Conclusions These findings reveal that AZT increases anti-inflammatory cytokines and GSH and decreases bone loss in ligature-induced periodontitis in rats.
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Affiliation(s)
- Aurigena Antunes de Araújo
- Post Graduation Program Public Health/Post Graduation Program in Pharmaceutical Science/Department of Biophysics and Pharmacology,UFRN, Natal, Rio Grande do Norte, Brazil
- * E-mail:
| | - Hugo Varela
- Post Graduation Program Public Health/Department of Dentistry, UFRN, Natal, Rio Grande do Norte, Brazil
| | | | | | | | | | - Raimundo Fernandes de Araújo Júnior
- Post Graduation Program in Functional and Structural Biology/Post Graduation Program Health Science/Department of Morphology, UFRN, Natal, Rio Grande do Norte, Brazil
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Machado-Filho JA, Correia AO, Montenegro ABA, Nobre MEP, Cerqueira GS, Neves KRT, Naffah-Mazzacoratti MDG, Cavalheiro EA, de Castro Brito GA, de Barros Viana GS. Caffeine neuroprotective effects on 6-OHDA-lesioned rats are mediated by several factors, including pro-inflammatory cytokines and histone deacetylase inhibitions. Behav Brain Res 2014; 264:116-25. [DOI: 10.1016/j.bbr.2014.01.051] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 01/28/2014] [Accepted: 01/31/2014] [Indexed: 12/20/2022]
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Araújo AA, Lopes de Souza G, Souza TO, de Castro Brito GA, Sabóia Aragão K, Xavier de Medeiros CA, Lourenço Y, do Socorro Costa Feitosa Alves M, Fernandes de Araújo R. Olmesartan decreases IL-1β and TNF-α levels; downregulates MMP-2, MMP-9, COX-2, and RANKL; and upregulates OPG in experimental periodontitis. Naunyn-Schmiedeberg's Arch Pharmacol 2013; 386:875-84. [DOI: 10.1007/s00210-013-0886-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 05/26/2013] [Indexed: 10/26/2022]
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