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Nascimento ACC, Nobre CFA, Araújo Neto VG, Silva TWS, Campos RS, Moura MEM, Lemos MVS, Feitosa VP. Efeitos dos Inibidores de Metaloproteinases de Matriz e das Catepsinas na Durabilidade de União: uma Revisão de Literatura. J Health Scie 2018. [DOI: 10.17921/2447-8938.2017v19n5p247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
O objetivo foi realizar uma revisão de literatura sobre a ação das metaloproteinases de matriz (MMPs) e das catepsinas na degradação da interface adesiva e abordar quais as principais substâncias utilizadas para inibir seus mecanismos de ação. Utilizou-se os descritores “Catepsinas”, “Metaloproteinases da Matriz” e “Adesivos Dentinários”, com seus correspondentes na língua inglesa, realizou-se busca nas bases de dados PubMed, Lilacs e SciELO, onde foram encontrados 32 artigos e selecionados 10. Foram empregados como critérios de inclusão, artigos datados entre 2007 e 2017 e como critérios de exclusão estudos de revisão de literatura e relatos de caso. As MMPs são endopeptidases (ENPT) zinco-cálcio dependentes localizadas na matriz extracelular que são capazes de degradar o colágeno, enquanto as catepsinas, que também são ENPT, estão presentes nos túbulos dentinários. A clorexidina foi o inibidor, para ambas as ENPT, mais utilizado na literatura, porém com um efeito residual de 24 meses, enquanto que Galardina, Tetraciclina e a Amônio quaternário são efetivas em inibir apenas MMPs. Substâncias naturais como a Proantocinidina e Epigalocatequina-3-galato (EGCG) atuam como efetivos inibidores dessas enzimas, contudo mais estudos precisam ser realizados para avaliar seus efeitos a longo prazo. Conclui-se que a inibição das MMPs e das catepsinas é um fator importante para durabilidade de união e que novos os inibidores naturais (EGCG e proantocianidina) são alternativas potencialmente viáveis para minimizar a degradação da interface.Palavras-chave: Catepsinas. Metaloproteinases da Matriz. Adesivos Dentinários.
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Silva TWS, Do Nascimento ACC, Campos RS, Mendonça JS, Nojosa JS. Eficácia Anticárie de Materiais Restauradores Incorporados com Nanopartículas de Clorexidina. J Health Scie 2018. [DOI: 10.17921/2447-8938.2017v19n5p280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Este trabalho tem como objetivo avaliar a eficácia anticárie de materiais restauradores incorporados com nanopartículas carregadas com clorexidina. Realizou-se uma revisão de literatura na base de dados PubMed, utilizando os seguintes descritores combinados entre si: “nanoparticles”, “chlorhexidine” e “dental caries” no período de 2007 a 2017. Foram encontrados 198 artigos científicos e selecionados 9, utilizando como critérios de inclusão: estudos in vitro que avaliassem a atividade antimicrobiana de materiais restauradores incorporados com nanopartículas de clorexidina. Foram excluídas as revisões de literatura e os estudos in vitro que avaliassem a resistência do material e que tivessem a adição de partículas carregadas com outro agente antimicrobiano. Nanopartículas são dispositivos de liberação controlada, desenvolvidos a fim de se obter o efeito prolongado de um fármaco. Foram realizados diferentes testes para avaliar o mecanismo de formação do biofilme, bem como a liberação de clorexidina. Os resultados mostraram que o uso de nanopartículas carregadas com clorexidina associadas aos materiais restauradores, como o ionômero de vidro, foram eficazes e tiveram sua liberação controlada durante um determinado período de tempo, bem como reduziram a atividade metabólica do biofilme e mostraram-se efetivos contra o Streptococcus mutans. Conclui-se que as nanopartículas de clorexidina associadas aos materiais restauradores apresentaram um efeito anticárie a partir da redução da formação de biofilme oral.Palavras-chave: Nanoparticles. Chlorhexidine. Dental Caries.
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Neto JBA, da Silva CR, Neta MAS, Campos RS, Siebra JT, Silva RAC, Gaspar DM, Magalhães HIF, de Moraes MO, Lobo MDP, Grangeiro TB, Carvalho TSC, Diogo EBT, da Silva Júnior EN, Rodrigues FAR, Cavalcanti BC, Júnior HVN. Antifungal activity of naphthoquinoidal compounds in vitro against fluconazole-resistant strains of different Candida species: a special emphasis on mechanisms of action on Candida tropicalis. PLoS One 2014; 9:e93698. [PMID: 24817320 PMCID: PMC4015898 DOI: 10.1371/journal.pone.0093698] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [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: 03/26/2013] [Accepted: 03/09/2014] [Indexed: 11/19/2022] Open
Abstract
In recent decades, the incidence of candidemia in tertiary hospitals worldwide has substantially increased. These infections are a major cause of morbidity and mortality; in addition, they prolong hospital stays and raise the costs associated with treatment. Studies have reported a significant increase in infections by non-albicans Candida species, especially C. tropicalis. The number of antifungal drugs on the market is small in comparison to the number of antibacterial agents available. The limited number of treatment options, coupled with the increasing frequency of cross-resistance, makes it necessary to develop new therapeutic strategies. The objective of this study was to evaluate and compare the antifungal activities of three semisynthetic naphthofuranquinone molecules against fluconazole-resistant Candida spp. strains. These results allowed to us to evaluate the antifungal effects of three naphthofuranquinones on fluconazole-resistant C. tropicalis. The toxicity of these compounds was manifested as increased intracellular ROS, which resulted in membrane damage and changes in cell size/granularity, mitochondrial membrane depolarization, and DNA damage (including oxidation and strand breakage). In conclusion, the tested naphthofuranquinones (compounds 1-3) exhibited in vitro cytotoxicity against fluconazole-resistant Candida spp. strains.
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MESH Headings
- Animals
- Antifungal Agents/chemical synthesis
- Antifungal Agents/chemistry
- Antifungal Agents/pharmacology
- Candida/classification
- Candida/drug effects
- Candida/genetics
- Candida tropicalis/drug effects
- Candida tropicalis/genetics
- Candida tropicalis/metabolism
- Cell Line
- Cell Survival/drug effects
- DNA Damage
- DNA, Fungal/chemistry
- DNA, Fungal/genetics
- DNA, Fungal/metabolism
- DNA, Ribosomal Spacer/chemistry
- DNA, Ribosomal Spacer/genetics
- Drug Resistance, Fungal/drug effects
- Fibroblasts/cytology
- Fibroblasts/drug effects
- Fluconazole/pharmacology
- Membrane Potential, Mitochondrial/drug effects
- Microbial Sensitivity Tests
- Models, Chemical
- Molecular Sequence Data
- Molecular Structure
- Naphthoquinones/chemical synthesis
- Naphthoquinones/chemistry
- Naphthoquinones/pharmacology
- Phosphatidylserines
- RNA, Ribosomal, 5.8S/genetics
- Reactive Oxygen Species/metabolism
- Sequence Analysis, DNA
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Affiliation(s)
- João B. A. Neto
- Department of Clinical and Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Cecília R. da Silva
- Department of Clinical and Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
- Department of Pathology and Legal Medicine, School of Medicine, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Maria A. S. Neta
- Department of Clinical and Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
- Department of Pathology and Legal Medicine, School of Medicine, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Rosana S. Campos
- Department of Clinical and Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
- Department of Pathology and Legal Medicine, School of Medicine, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Janaína T. Siebra
- Department of Clinical and Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Rose A. C. Silva
- Department of Clinical and Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Danielle M. Gaspar
- Department of Physiology and Pharmacology, Laboratory of Experimental Oncology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Hemerson I. F. Magalhães
- Department of Clinical and Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
- Department of Pharmaceutical Sciences, Center for Toxicological Assistance, University Federal of Paraíba, Paraíba, Brazil
| | - Manoel O. de Moraes
- Department of Physiology and Pharmacology, Laboratory of Experimental Oncology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Marina D. P. Lobo
- Department of Biology, ScienceCenter, Molecular Genetics Laboratory, Federal University of Ceará, Ceará, Brazil
| | - Thalles B. Grangeiro
- Department of Biology, ScienceCenter, Molecular Genetics Laboratory, Federal University of Ceará, Ceará, Brazil
| | - Tatiane S. C. Carvalho
- Natural Products Research Nucleus, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Emilay B. T. Diogo
- Department of Chemistry, Institute of Exact Sciences, Laboratory of Synthetic and Heterocyclic Chemistry, Federal University of Minas Gerais, Minas Gerais, Brazil
| | - Eufrânio N. da Silva Júnior
- Department of Chemistry, Institute of Exact Sciences, Laboratory of Synthetic and Heterocyclic Chemistry, Federal University of Minas Gerais, Minas Gerais, Brazil
| | - Felipe A. R. Rodrigues
- Department of Physiology and Pharmacology, Laboratory of Experimental Oncology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Bruno C. Cavalcanti
- Department of Pathology and Legal Medicine, School of Medicine, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
- Department of Physiology and Pharmacology, Laboratory of Experimental Oncology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Hélio V. N. Júnior
- Department of Clinical and Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
- Department of Pathology and Legal Medicine, School of Medicine, Laboratory of Bioprospection and Experiments in Yeast (LABEL), Federal University of Ceará, Fortaleza, Ceará, Brazil
- Department of Physiology and Pharmacology, Laboratory of Experimental Oncology, Federal University of Ceará, Fortaleza, Ceará, Brazil
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