Consulta: creatorFacets:"Gaetti-Jardim Júnior,Elerson"
Registros recuperados: 5
Data/hora: 17/06/2024 14:17:05

Bacteriocin-like activity of oral Fusobacterium nucleatum isolated from human and non-human primates
Provedor de dados: 59
Autores: Gaetti-Jardim Júnior,Elerson; Avila-Campos,Mario Julio.
Fusobacterium nucleatum is indigenous of the human oral cavity and has been involved in different infectious processes. The production of bacteriocin-like substances may be important in regulation of bacterial microbiota in oral cavity. The ability to produce bacteriocin-like substances by 80 oral F. nucleatum isolates obtained from periodontal patients, healthy individuals and Cebus apella monkeys, was examinated. 17.5% of all tested isolates showed auto-antagonism and 78.8% iso- or hetero-antagonism. No isolate from monkey was capable to produce auto-inhibition. In this study, the antagonistic substances production was variable in all tested isolates. Most of the F. nucleatum showed antagonistic activity against tested reference strains. These data...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fusobacterium nucleatum; Bacteriocin-like substance; Oral bacteria.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000400009

Occurrence of yeasts, enterococci and other enteric bacteria in subgingival biofilm of HIV-positive patients with chronic gingivitis and necrotizing periodontitis
Provedor de dados: 58
Autores: Gaetti-Jardim Júnior,Elerson; Nakano,Viviane; Wahasugui,Thais C.; Cabral,Fátima C.; Gamba,Rosa; Avila-Campos,Mario Julio.
The purpose of this study was to determine the prevalence of enteric bacteria and yeasts in biofilm of 80 HIV-positive patients with plaque-associated gingivitis or necrotizing periodontitis. Patients were subjected to extra, intra oral and radiographic examinations. The oral hygiene, bleeding on probing, gingival conditions, and attachment loss were evaluated. Clinical specimens were collected from gingival crevices or periodontal pockets, transferred to VMGA III, diluted and transferred to Sabouraud Dextrose agar with 100 µg/ml of chloramphenicol, peptone water, EVA broth, EMB agar, SS agar, Bile esculin agar and Brilliant green agar. Isolation of yeasts was carried out at room temperature, for 3-7 days; and for the isolation of enteric microorganisms...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HIV patients; Candida albicans; Enterococci; Enterobacteria.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000200011

Virulence of oral Fusobacterium nucleatum from humans and non-human primates in mice
Provedor de dados: 58
Autores: Gaetti-Jardim Júnior,Elerson; Luvizotto,Maria C. Rui; Avila-Campos,Mario J.
The lethal action in Balb/c mice of 80 oral Fusobacterium nucleatum recovered from patients with adult periodontitis, healthy subjects or Cebus apella monkeys was studied. Mice were inoculated intraperitoneally with each bacterial inoculum of 5 x 10(8) CFU/ml. All the clinical isolates induced weight and coordinated movements loss. Pathological alterations in liver, CNS, heart, and kidney with inflammatory reactions or vascular congestion were observed. Of all the tested F. nucleatum isolates, 61.2% from periodontal patients, 57.1% from healthy subjects and 60% from monkeys, were capable of killing the mice in 48h. The clinical isolates were significantly more pathogenic than F. nucleatum ATCC 10953 or ATCC 25586. B. fragilis ATCC 23745 showed lethality...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fusobacterium nucleatum; Pathogenesis; Human and non-human primates.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000200016

Microbiota associated with chronic osteomyelitis of the jaws
Provedor de dados: 58
Autores: Gaetti-Jardim Júnior,Elerson; Fardin,Angélica Cristiane; Gaetti-Jardim,Ellen Cristina; Castro,Alvimar Lima de; Schweitzer,Christiane Marie; Avila-Campos,Mario Julio.
Chronic osteomyelitis of maxilla and mandible is rare in industrialized countries and its occurrence in developing countries is associated with trauma and surgery, and its microbial etiology has not been studied thoroughly. The aim of this investigation was to evaluate the microbiota associated with osteomyelitis of mandible or maxilla from some Brazilian patients. After clinical and radiographic evaluation, samples of bone sequestra, purulent secretion, and biopsies of granulomatous tissues from twenty-two patients with chronic osteomyelitis of mandible and maxilla were cultivated and submitted for pathogen detection by using a PCR method. Each patient harbored a single lesion. Bacterial isolation was performed on fastidious anaerobe agar supplemented...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Osteomyelitis; Bacteria; Anaerobes; Maxilla; Mandible.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000400025

Occurrence of yeasts, pseudomonads and enteric bacteria in the oral cavity of patients undergoing head and neck radiotherapy
Provedor de dados: 58
Autores: Gaetti-Jardim Júnior,Elerson; Ciesielski,Francisco Isaak Nicolas; Sousa,Fátima Regina Nunes de; Nwaokorie,Francisca; Schweitzer,Christiane Marie; Avila-Campos,Mario Júlio.
The aim of this study was to evaluate the occurrence of yeasts, pseudomonads and enteric bacteria in the oral cavity of patients undergoing radiotherapy (RT) for treatment of head and neck cancer. Fifty patients receiving RT were examined before, during and 30 days after RT. Saliva, mucosa, and biofilm samples were collected and microorganisms were detected by culture and polymerase chain reaction (PCR). The most prevalent yeasts in patients submitted to RT were Candida albicans, C. tropicalis, C. krusei, C. glabrata and C. parapsilosis. Citrobacter, Enterobacter, Enterococcus, Klebsiella, Proteus, and Pseudomonas were the most frequently cultivated bacteria. Before RT, targeted bacteria were cultivated from 22.2% of edentulous patients and 16.6% of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Radiotherapy; Cancer; Enterobacteriaceae; Prevalence.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000300024