Navegação Ciências da Saúde por Autor "Macedo, Alexandre José"
Resultados 1-20 de 31
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Antibiofilm activity of Cobetia marina filtrate upon Staphylococcus epidermidis catheter-related isolates
(2011) [Artigo de periódico]We report the antibiofilm activity by the sponge-associated bacterium Cobetia marina upon Staphylococcus epidermidis clinical isolates obtained from central venous catheters. Antibiofilm activity/antimicrobial susceptibility ... -
Antimicrobial activity and phytochemical screening of buchenavia tetraphylla (aubl.) R. A. Howard (combretaceae: combretoideae)
(2012) [Artigo de periódico]This study evaluated the antimicrobial and hemolytic activities and phytochemical constituents of hydroalcoholic extract and its fractions from Buchenavia tetraphylla leaves. Cyclohexane (BTCF), ethyl acetate (BTEF), and ... -
Capsicumicine, a new bioinspired peptide from red peppers prevents staphylococcal biofilm in vitro and in vivo via a matrix anti-assembly mechanism of action
(2021) [Artigo de periódico]Staphylococci are pathogenic biofilm-forming bacteria and a source of multidrug resistance and/or tolerance causing a broad spectrum of infections. These bacteria are enclosed in a matrix that allows them to colonize medical ... -
Comparison of techniques for counting prokaryotes in marine planktonic and biofilm samples
(2021) [Artigo de periódico]Though a large number of techniques are available for the study of aquatic bacteria, the aim of this study was to establish a technique for analysing free-living and biofilm prokaryotic cells through laboratory assays. In ... -
Endophytic fungi as a source of antibacterial compounds : a focus on gram-negative bacteria
(2022) [Artigo de periódico]Bacterial resistance has become one of the main motives in the worldwide race for undescribed antibacterial agents. The difficulties in the treatment of bacterial infections are a public health issue that increasingly ... -
Enzimas microbianas de uso terapêutico e diagnóstico clínico
(2009) [Artigo de periódico]Enzimas microbianas têm se destacado como um dos principais produtos tecnológicos do mundo moderno, porém seu uso tem relatos nos tempos mais remotos. No início do século XX, teve início a produção em grande escala de ... -
Estrategias de control de mejillones invasores : una revisión
(2022) [Artigo de periódico]El proceso de bioincrustación puede dañar varias estructuras construidas por el hombre y, junto con el agua de lastre, es el principal vector para la transferencia de especies invasoras en todo el mundo. El control de las ... -
Estratégias e desafios no combate à malária
(2009) [Artigo de periódico]A malária é uma das mais importantes doenças parasitárias do mundo, apresentando como agente etiológico protozoários do gênero Plasmodium. Dados recentes apontam que aproximadamente 40% da população mundial está exposta à ... -
Evaluation of antibiotics as a methodological procedure to inhibit free-living and biofilm bacteria in marine zooplankton culture
(2016) [Artigo de periódico]There is a problem with keeping culture medium completely or partially free from bacteria. The use of prokaryotic metabolic inhibitors, such as antibiotics, is suggested as an alternative solution, although such substances ... -
High microbiome variability in pediatric tracheostomy cannulas in patients with similar clinical characteristics
(2023) [Artigo de periódico]Objectives To evaluate the bacterial microbiome found in tracheostomy cannulas of a group of children diagnosed with glossoptosis secondary to Robin Sequence (RS), and its clinical implications. Methods Pediatric patients ... -
High vancomycin resistance among biofilms produced by staphylococcus species isolated from central venous catheters
(2011) [Artigo de periódico]Biofilm production is an important mechanism that allows microbes to escape host defences and antimicrobial therapy. Vancomycin has been used largely for the treatment of methicillin-resistant staphylococcal infections. ... -
Intestinal parasitism and socio-environmental factors among mbyá-guarani indians, Porto Alegre, Rio Grande do Sul, Brazil
(2012) [Artigo de periódico]Dados preocupantes demonstram a prevalência de parasitos intestinais e sua relação com fatores socioambientais entre indígenas Mbya-Guarani. A prevalência foi determinada pelas técnicas de sedimentação espontânea em água, ... -
Iron from haemoglobin and haemin modulates nucleotide hydrolysis in Trichomonas vaginalis
(2015) [Artigo de periódico]Extracellular ATP may act as a danger signalling molecule, inducing inflammation and immune responses in infection sites. The ectonucleotidases NTPDase and ecto-5’-nucleotidase are enzymes that modulate extracellular ... -
Macrocolony of NDM-1 producing Enterobacter hormaechei subsp. oharae generates subpopulations with different features regarding the response of antimicrobial agents and biofilm formation
(2019) [Artigo de periódico]Enterobacter cloacae complex has been increasingly recognized as a nosocomial pathogen representing the third major Enterobacteriaceae species involved with infections. This study aims to evaluate virulence and antimicrobial ... -
Marine biotechnology in Brazil : recent developments and its potential for innovation
(2018) [Artigo de periódico]Marine biotechnology is an emerging field in Brazil and includes the exploration of marine microbial products, aquaculture, omics, isolation of biologically active compounds, identification of biosynthetic gene clusters ... -
Microrganismos em favor da saúde humana
(2008) [Artigo de periódico]Os fungos e as bactérias possuem um enorme potencial de produção de compostos biologicamente ativos que podem e são utilizados no tratamento de várias enfermidades humanas. Destaca-se, nesta breve revisão, a importância ... -
Modulatory effect of iron chelators on adenosine deaminase activity and gene expression in Trichomonas vaginalis
(2015) [Artigo de periódico]Trichomonas vaginalis is a flagellate protozoan that parasitises the urogenital human tract and causes trichomoniasis. During the infection, the acquisition of nutrients, such as iron and purine and pyrimidine nucleosides, ... -
Myricetin protects Galleria mellonella against Staphylococcus aureus infection and inhibits multiple virulence factors
(2017) [Artigo de periódico]Staphylococcus aureus is an opportunistic pathogen related to a variety of life-threatening infections but for which antimicrobial resistance is liming the treatment options. We report here that myricetin, but not its ... -
A new Kunitz trypsin inhibitor from Erythrina poeppigiana exhibits antimicrobial and antibiofilm properties against bacteria
(2021) [Artigo de periódico]Erythrina poeppigiana belongs to Fabaceae family (subfamily Papillionoideae) and is commonly found in tropical and subtropical regions in Brazil. Herein, we described the purification and characterization of a new Kunitz-type ... -
Optimal reference genes for gene expression normalization in Trichomonas vaginalis
(2015) [Artigo de periódico]Trichomonas vaginalis is the etiologic agent of trichomonosis, the most common non-viral sexually transmitted disease worldwide. This infection is associated with several health consequences, including cervical and prostate ...
