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  1 / 14 MEDLINE  
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[PMID]:22762355
[Au] Autor:Casarin RC; Barbagallo A; Meulman T; Santos VR; Sallum EA; Nociti FH; Duarte PM; Casati MZ; Gonçalves RB
[Ad] Endereço:Division of Periodontics, Paulista University, São Paulo, Brazil. casarinrcv@yahoo.com.br
[Ti] Título:Subgingival biodiversity in subjects with uncontrolled type-2 diabetes and chronic periodontitis.
[So] Source:J Periodontal Res;48(1):30-6, 2013 Feb.
[Is] ISSN:1600-0765
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND AND OBJECTIVE: There is a bidirectional relationship between periodontal disease and type-2 diabetes mellitus (DM). Inflammatory mediators may negatively affect glycemic control, and increased glucose levels and resultant glycation end-products may alter the host response against bacterial infection. However, no agreement has been reached regarding the effect of DM on periodontal subgingival microbiota. Therefore, the purpose of the present study was to compare the subgingival biodiversity in deep periodontal pockets of subjects with chronic periodontitis and either uncontrolled type-2 diabetes or no diabetes using 16S rRNA gene cloning and sequencing. MATERIAL AND METHODS: Twelve subjects with uncontrolled type-2 diabetes (glycated hemoglobin > 8%) and eleven nondiabetic subjects presenting severe and generalized chronic periodontitis were selected. Subgingival biofilm from periodontal pockets > 5 mm were assessed using the 16S rRNA gene cloning and sequencing technique. RESULTS: Significant differences were observed in subgingival microbiota between diabetic and nondiabetic subjects. Diabetic subjects presented higher percentages of total clones of TM7, Aggregatibacter, Neisseria, Gemella, Eikenella, Selenomonas, Actinomyces, Capnocytophaga, Fusobacterium, Veillonella and Streptococcus genera, and lower percentages of Porphyromonas, Filifactor, Eubacterium, Synergistetes, Tannerella and Treponema genera than nondiabetic individuals (p < 0.05). Moreover, some phylotypes, such as Fusobacterium nucleatum, Veillonella parvula, V. dispar and Eikenella corrodens were detected significantly more often in diabetic subjects than in nondiabetic subjects (p < 0.05). CONCLUSION: Subjects with uncontrolled type-2 diabetes and chronic periodontitis presented significant dissimilarities in subgingival biodiversity compared with nondiabetic subjects.
[Mh] Termos MeSH primário: Bactérias/classificação
Biodiversidade
Periodontite Crônica/microbiologia
Diabetes Mellitus Tipo 2/microbiologia
Gengiva/microbiologia
[Mh] Termos MeSH secundário: Actinobacillus/isolamento & purificação
Actinomyces/isolamento & purificação
Adulto
Bactérias/isolamento & purificação
Bacteroides/isolamento & purificação
Biofilmes/classificação
Capnocytophaga/isolamento & purificação
Periodontite Crônica/classificação
Diabetes Mellitus Tipo 2/sangue
Eikenella/isolamento & purificação
Eubacterium/isolamento & purificação
Feminino
Fusobacterium/isolamento & purificação
Gemella/isolamento & purificação
Bactérias Anaeróbias Gram-Negativas/isolamento & purificação
Seres Humanos
Masculino
Neisseria/isolamento & purificação
Perda da Inserção Periodontal/microbiologia
Bolsa Periodontal/microbiologia
Porphyromonas/isolamento & purificação
RNA Bacteriano/análise
RNA Ribossômico 16S/análise
Selenomonas/isolamento & purificação
Streptococcus/isolamento & purificação
Treponema/isolamento & purificação
Veillonella/isolamento & purificação
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (RNA, Bacterial); 0 (RNA, Ribosomal, 16S)
[Em] Mês de entrada:1306
[Cu] Atualização por classe:130102
[Lr] Data última revisão:
130102
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:120706
[St] Status:MEDLINE
[do] DOI:10.1111/j.1600-0765.2012.01498.x


  2 / 14 MEDLINE  
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[PMID]:20592406
[Au] Autor:Treasure T; Hughes W; Bennett J
[Ad] Endereço:Department of Oral Surgery and Hospital Dentistry,School of Dentistry, Indiana University, 1050 Wishard Blvd., Indianapolis, IN 46202, USA. ttreasur@iupui.edu
[Ti] Título:Cervical necrotizing fasciitis originating with a periapical infection.
[So] Source:J Am Dent Assoc;141(7):861-6, 2010 Jul.
[Is] ISSN:1943-4723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Necrotizing fasciitis is a rapidly spreading, soft-tissue infection involving the subcutaneous tissues. Necrotizing fasciitis originating from a dental-related source is rare. Practitioners should be aware that this infection could occur in patients who are immunocompromised and in patients who are healthy. Practitioners must treat this disease aggressively with surgical debridement and intensive medical support. CASE DESCRIPTION: The authors present a case report of a man with poorly controlled diabetes mellitus in whom a periapical infection progressed into a maxillofacial space abscess and finally cervical necrotizing fasciitis (CNF). A delay in his initial visit to a dentist was evident. The authors observed a successful outcome in the patient after he underwent several wide surgical debridement procedures, hyperbaric oxygen therapy and a protracted, intensive hospital stay lasting 34 days. CONCLUSIONS: Dentists should suspect that a patient has CNF when maxillofacial cellulitis or an abscess does not respond to conventional therapy. Findings of spreading skin erythema, induration, purple discoloration and anesthesia suggest necrotizing fasciitis. Early computed tomography scans may reveal gas within the deep tissues of the neck, fascial plane involvement or both. CLINICAL IMPLICATIONS: CNF has high morbidity and mortality rates if rapid aggressive therapy is not pursued. Spread of this polymicrobial infection can lead to mediastinitis or cranial base involvement. Mortality is directly proportional to the time to intervention.
[Mh] Termos MeSH primário: Fasciite Necrosante/etiologia
Abscesso Periapical/complicações
[Mh] Termos MeSH secundário: Lesão Renal Aguda/etiologia
Lesão Renal Aguda/terapia
Antibacterianos/uso terapêutico
Desbridamento
Diabetes Mellitus Tipo 1/complicações
Eikenella
Enterobacter
Fasciite Necrosante/microbiologia
Fasciite Necrosante/cirurgia
Fasciite Necrosante/terapia
Hidratação
Haemophilus
Seres Humanos
Oxigenação Hiperbárica
Tempo de Internação
Masculino
Meia-Idade
Pescoço
Neisseria
Abscesso Periapical/microbiologia
Streptococcus pyogenes
Fatores de Tempo
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents)
[Em] Mês de entrada:1010
[Cu] Atualização por classe:101118
[Lr] Data última revisão:
101118
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:100702
[St] Status:MEDLINE


  3 / 14 MEDLINE  
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[PMID]:19369843
[Au] Autor:Mittal MK; Zimmerman RA
[Ad] Endereço:Division of Emergency Medicine, daggerDepartment of Radiology, The Children's Hospital of Philadelphia19104-4399, USA. Mittal@email.chop.edu
[Ti] Título:Meningitis and epidural abscess related to pansinusitis.
[So] Source:Pediatr Emerg Care;25(4):267-8, 2009 Apr.
[Is] ISSN:1535-1815
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Sinusitis can rarely be latent and present directly with intracranial complications. We present the case of an 11-year-old girl who presented with typical features of meningitis. She underwent neuroimaging because of slow improvement and concern for a brain abscess. Despite no history or examination findings suggestive of sinusitis, she was found to have pansinusitis with intracranial extension causing meningitis and epidural abscess.
[Mh] Termos MeSH primário: Transtornos da Consciência/etiologia
Emergências
Abscesso Epidural/diagnóstico
Meningites Bacterianas/diagnóstico
Sinusite/complicações
[Mh] Termos MeSH secundário: Infecções por Bacteroidaceae/complicações
Infecções por Bacteroidaceae/tratamento farmacológico
Infecções por Bacteroidaceae/cirurgia
Cefotaxima/administração & dosagem
Cefotaxima/uso terapêutico
Ceftriaxona/administração & dosagem
Ceftriaxona/uso terapêutico
Criança
Terapia Combinada
Diagnóstico por Imagem/métodos
Quimioterapia Combinada
Eikenella/isolamento & purificação
Endoscopia
Abscesso Epidural/tratamento farmacológico
Abscesso Epidural/etiologia
Feminino
Infecções por Fusobacterium/complicações
Infecções por Fusobacterium/tratamento farmacológico
Infecções por Fusobacterium/cirurgia
Infecções por Bactérias Gram-Negativas/complicações
Infecções por Bactérias Gram-Negativas/tratamento farmacológico
Infecções por Bactérias Gram-Negativas/cirurgia
Infecções por Bactérias Gram-Positivas/complicações
Infecções por Bactérias Gram-Positivas/tratamento farmacológico
Infecções por Bactérias Gram-Positivas/cirurgia
Seres Humanos
Meningites Bacterianas/tratamento farmacológico
Meningites Bacterianas/etiologia
Meningites Bacterianas/microbiologia
Metronidazol/administração & dosagem
Metronidazol/uso terapêutico
Procedimentos Cirúrgicos Otorrinolaringológicos
Peptostreptococcus/isolamento & purificação
Prevotella intermedia/isolamento & purificação
Sinusite/tratamento farmacológico
Sinusite/microbiologia
Sinusite/cirurgia
Infecções Estafilocócicas/complicações
Infecções Estafilocócicas/tratamento farmacológico
Infecções Estafilocócicas/cirurgia
Vancomicina/administração & dosagem
Vancomicina/uso terapêutico
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Nm] Nome de substância:
140QMO216E (Metronidazole); 6Q205EH1VU (Vancomycin); 75J73V1629 (Ceftriaxone); N2GI8B1GK7 (Cefotaxime)
[Em] Mês de entrada:0907
[Cu] Atualização por classe:131121
[Lr] Data última revisão:
131121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:090417
[St] Status:MEDLINE
[do] DOI:10.1097/PEC.0b013e31819e38ea


  4 / 14 MEDLINE  
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[PMID]:16390985
[Au] Autor:Petti CA; Bhally HS; Weinstein MP; Joho K; Wakefield T; Reller LB; Carroll KC
[Ad] Endereço:Department of Medicine, University of Utah School of Medicine, Salt Lake City, USA. cathy.petti@aruplab.com
[Ti] Título:Utility of extended blood culture incubation for isolation of Haemophilus, Actinobacillus, Cardiobacterium, Eikenella, and Kingella organisms: a retrospective multicenter evaluation.
[So] Source:J Clin Microbiol;44(1):257-9, 2006 Jan.
[Is] ISSN:0095-1137
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The incidence of and average time to detection for Haemophilus, Actinobacillus, Cardiobacterium, Eikenella, and Kingella (HACEK) bacteria in blood cultures with standard incubation and the utility of extended incubation of blood culture bottles were reviewed at four tertiary care microbiology laboratories. HACEK organisms were isolated from 35 (<0.005%) of 59,203 positive blood cultures. None of 407 blood cultures with extended incubation grew HACEK or other bacteria. Bacteremia from HACEK bacteria is rare, and extended incubation of blood cultures to recover HACEK bacteria is unnecessary.
[Mh] Termos MeSH primário: Actinobacillus/isolamento & purificação
Sangue/microbiologia
Cardiobacterium/isolamento & purificação
Eikenella/isolamento & purificação
Haemophilus/isolamento & purificação
Kingella/isolamento & purificação
Sepse/diagnóstico
[Mh] Termos MeSH secundário: Técnicas Bacteriológicas
Estudos Retrospectivos
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE; MULTICENTER STUDY
[Em] Mês de entrada:0603
[Cu] Atualização por classe:140909
[Lr] Data última revisão:
140909
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:060105
[St] Status:MEDLINE


  5 / 14 MEDLINE  
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[PMID]:11350499
[Au] Autor:Haffajee AD; Socransky SS
[Ad] Endereço:Department of Periodontology, The Forsyth Institute, Boston, MA, USA.
[Ti] Título:Relationship of cigarette smoking to the subgingival microbiota.
[So] Source:J Clin Periodontol;28(5):377-88, 2001 May.
[Is] ISSN:0303-6979
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The relationship of cigarette smoking to the composition of the subgingival microbiota is not clear. Some studies indicated higher levels of certain species in smokers, while other studies failed to detect differences in the microbiota between subjects with different smoking histories. Thus, the purpose of the present investigation was to examine the prevalence, proportions and levels of the subgingival species in adult subjects who were current, past or never smokers. METHOD: 272 adult subjects ranging in age from 20-86 years with at least 20 teeth were recruited for study. Smoking history was obtained using a questionnaire. Clinical measures were taken at 6 sites per tooth at all teeth excluding third molars at a baseline visit. Subgingival plaque samples were taken from the mesial surface of all teeth excluding third molars in each subject at baseline and assayed individually for counts of 29 subgingival species using checkerboard DNA-DNA hybridization. Subjects were subset according to smoking history into never (n=124), past (n=98) and current smokers (n=50). Uni-variate and multi-variate analyses were used to seek associations between smoking category and the counts, proportions and prevalence of subgingival species. RESULTS: Greater differences were observed for the prevalence (% of sites colonized) of the test species in the 3 smoking groups than were observed for counts or proportions of total counts. Members of the orange and red complexes including E. nodatum, F. nucleatum ss vincentii, P. intermedia, P. micros, P. nigrescens, B. forsythus, P. gingivalis and T. denticola were significantly more prevalent in current smokers than in the other 2 groups. The difference in prevalence between smokers and non-smokers was due to greater colonization at sites with pocket depth <4 mm. Stepwise multiple linear regression analysis indicated that combinations of the prevalence of 5 microbial species and pack years accounted for 44% of the variance for mean pocket depth (p<0.000001), while the prevalence of 3 microbial taxa along with age, pack years, current smoking and gender accounted for 31% of the variance in mean attachment level (p<0.000001). The difference in prevalence between current and never smokers of all members of the red complex and 8 of 12 members of the orange complex was significantly greater in the maxilla than in the mandible. CONCLUSIONS: The major difference between the subgingival microbiota in subjects with different smoking history was in the prevalence of species rather than counts or proportions. The greater extent of colonization in smokers appeared to be due to greater colonization at pocket depths <4 mm. Differences in colonization patterns between current and never smokers were greater in the maxilla than in the mandible.
[Mh] Termos MeSH primário: Bactérias/classificação
Gengiva/microbiologia
Fumar/fisiopatologia
[Mh] Termos MeSH secundário: Adulto
Fatores Etários
Idoso
Idoso de 80 Anos ou mais
Análise de Variância
Bactérias/crescimento & desenvolvimento
Bacteroides/crescimento & desenvolvimento
Contagem de Colônia Microbiana
Placa Dentária/microbiologia
Eikenella/crescimento & desenvolvimento
Feminino
Fusobacterium nucleatum/crescimento & desenvolvimento
Seres Humanos
Modelos Lineares
Masculino
Meia-Idade
Análise Multivariada
Hibridização de Ácido Nucleico
Peptostreptococcus/crescimento & desenvolvimento
Bolsa Periodontal/microbiologia
Periodontite/microbiologia
Porphyromonas gingivalis/crescimento & desenvolvimento
Prevotella/crescimento & desenvolvimento
Prevotella intermedia/crescimento & desenvolvimento
Estudos Retrospectivos
Fatores Sexuais
Treponema/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, P.H.S.
[Em] Mês de entrada:0112
[Cu] Atualização por classe:071114
[Lr] Data última revisão:
071114
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:010515
[St] Status:MEDLINE


  6 / 14 MEDLINE  
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[PMID]:11314361
[Au] Autor:Steelman R; Einzig S; Balian A; Thomas J; Rosen D; Gustafson R; Gochenour L
[Ad] Endereço:Department of Pediatrics, Division of Cardiology, West Virginia University, Box 9214 HSCN, Morgantown, WV 26506. Rsteehnan@wvu.edu
[Ti] Título:Increased susceptibility to gingival colonization by specific HACEK microbes in children with congenital heart disease.
[So] Source:J Clin Pediatr Dent;25(1):91-4, 2000.
[Is] ISSN:1053-4628
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:It is well established that infective endocarditis (IE) involving the HACEK (Hemophilus, Actinobacillus, Cardiobacter, Eikenella, Kingella) group of microbes occurs in patients with congenital heart defects (CHD) and in those with prosthetic grafts. Dental caries and gingival disease have been presumed to be the focus of microbial shedding. The purpose of this study was to determine if children with CHD had a more severe gingival inflammatory condition and harbored the HACEK group of microbes to a greater extent than normal children. Two groups of 12 age and sex matched children were selected for this study. The experimental group consisted of twelve children with CHD, 1-1/2 to 8 years of age. The control group consisted of 12 healthy children 2 to 8 years of age. Each child had a gingival index score recorded as described by Massler. Subgingival cultures were obtained. Gingival samples were cultured for HACEK microbes and total Streptococcus (spp) using standard techniques. Fisher's exact test was performed with significance defined at P < 0.05. Children with CHD had more severe gingival inflammatory index than the control group (P < 0.05). 8/12 CHD patient had Actinobacillus actinomycetemcomitans (A.a.) as compared with 2/12 controls (P < 0.05). Furthermore, all cyanotic CHD patients (4/4) had A.a. whereas, only 2/12 controls did (P < 0.05). 4/12 CHD patients harbored Eikenella corrodens (E.c.) compared to 1/12 controls (N.S.). There was no significant difference in colonization with E.c. or A.a. between cyanotic and acyanotic patients. No significant difference in total Streptococcus (spp) was found between the two groups. This study suggests that children with CHD have a more severe gingival inflammatory index and are colonized with specific HACEK microbes more so than normal children.
[Mh] Termos MeSH primário: Actinobacillus/classificação
Eikenella/classificação
Gengivite/microbiologia
Bacilos Gram-Negativos Anaeróbios Facultativos/classificação
Haemophilus/classificação
Cardiopatias Congênitas/microbiologia
Kingella/classificação
[Mh] Termos MeSH secundário: Actinobacillus/crescimento & desenvolvimento
Aggregatibacter actinomycetemcomitans/crescimento & desenvolvimento
Estudos de Casos e Controles
Criança
Pré-Escolar
Contagem de Colônia Microbiana
Cianose/microbiologia
Cárie Dentária/microbiologia
Eikenella/crescimento & desenvolvimento
Feminino
Gengiva/microbiologia
Gengivite/classificação
Bacilos Gram-Negativos Anaeróbios Facultativos/crescimento & desenvolvimento
Haemophilus/crescimento & desenvolvimento
Seres Humanos
Lactente
Kingella/crescimento & desenvolvimento
Masculino
Índice Periodontal
Estatística como Assunto
Streptococcus/classificação
Streptococcus/crescimento & desenvolvimento
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Em] Mês de entrada:0105
[Cu] Atualização por classe:131121
[Lr] Data última revisão:
131121
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:010421
[St] Status:MEDLINE


  7 / 14 MEDLINE  
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[PMID]:11155173
[Au] Autor:Kamma JJ; Diamanti-Kipioti A; Nakou M; Mitsis FJ
[Ad] Endereço:Department of Periodontology, School of Dental Medicine, University of Athens, Greece.
[Ti] Título:Profile of subgingival microbiota in children with mixed dentition.
[So] Source:Oral Microbiol Immunol;15(2):103-11, 2000 Apr.
[Is] ISSN:0902-0055
[Cp] País de publicação:Denmark
[La] Idioma:eng
[Ab] Resumo:A diversity of microbial species has been detected in children's oral flora at an early age. To investigate the composition of the subgingival microbiota of different groups of teeth in children with mixed dentition, 40 systemically healthy children, aged 7-8 years, randomly chosen, were examined. Subgingival plaque samples were taken from the mesiobuccal sites of 21, 41, 16 and 36 permanent teeth and 53, 73, 64 and 84 deciduous teeth. The samples were cultured for bacterial isolation anaerobically and in 10% CO2 plus air using selective and nonselective media. Forty-five different microbial species were isolated from both permanent and deciduous teeth. Streptococcus sanguis (79-70%), Streptococcus mitis (66-65%), Prevotella melaninogenica (51-57%), Eikenella corrodens (51-52%), Capnocytophaga gingivalis (46-34%), Capnocytophaga ochracea (45-45%), Actinomyces naeslundii (39-60%) and Prevotella intermedia (42-35%) were among the most frequently detected species in permanent and deciduous teeth respectively. Several suspected periodontal pathogens, such as Porphyromonas gingivalis, Prevotella loescheii, Campylobacter gracilis, Bacteroides forsythus, Campylobacter concisus, Peptostreptococcus micros and Selenomonas sputigena, albeit less frequently detected, were present in the microbiota of these children. The bacterial species Streptococcus constellatus, Peptostreptococcus micros, Pseudoramibacter alactolyticus, E. corrodens and Fusobacterium nucleatum were associated with non-bleeding permanent and deciduous teeth whereas Streptococcus intermedius, C. concisus, P. intermedia and P. loescheii were associated with bleeding.
[Mh] Termos MeSH primário: Gengiva/microbiologia
Dente Decíduo/microbiologia
Dente/microbiologia
[Mh] Termos MeSH secundário: Actinomyces/isolamento & purificação
Capnocytophaga/isolamento & purificação
Criança
Eikenella/isolamento & purificação
Feminino
Gengiva/patologia
Hemorragia/microbiologia
Seres Humanos
Masculino
Prevotella/isolamento & purificação
Streptococcus/isolamento & purificação
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:0103
[Cu] Atualização por classe:061115
[Lr] Data última revisão:
061115
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:010113
[St] Status:MEDLINE


  8 / 14 MEDLINE  
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[PMID]:10439543
[Au] Autor:Caballero-Granado FJ; Jiménez-Mejías ME; Infante-Cossío P; Hernández-Guisado JM; Pichardo C; Palomino-Nicás J
[Ad] Endereço:Servicio de Enfermedades Infecciosas, Hospital Universitario Virgen del Rocío, Sevilla.
[Ti] Título:[Fever and left submaxillar tumefaction of cyclic appearance].
[Ti] Título:Fiebre y tumefacción submaxilar izquierda de aparición cíclica..
[So] Source:Enferm Infecc Microbiol Clin;17(6):309-10, 1999 Jun-Jul.
[Is] ISSN:0213-005X
[Cp] País de publicação:Spain
[La] Idioma:spa
[Mh] Termos MeSH primário: Eikenella/isolamento & purificação
Infecções por Bactérias Gram-Negativas/diagnóstico
Doenças Maxilares/microbiologia
[Mh] Termos MeSH secundário: Adulto
Febre
Seres Humanos
Masculino
Doenças Maxilares/diagnóstico
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:9909
[Cu] Atualização por classe:041117
[Lr] Data última revisão:
041117
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:990810
[St] Status:MEDLINE


  9 / 14 MEDLINE  
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[PMID]:9861676
[Au] Autor:Kasten R; Mutters R; Mannheim W
[Ad] Endereço:Institute of Medical Microbiology and Hospital Hygiene, Philipps University Marburg, Germany.
[Ti] Título:Catalase-positive Eikenella corrodens and Eikenella-like isolates of human and canine origin.
[So] Source:Zentralbl Bakteriol;288(3):319-29, 1998 Nov.
[Is] ISSN:0934-8840
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Ten catalase-positive isolates and one catalase-negative isolate that had been assigned to Eikenella corrodens were compared to the nomenclatural type strain regarding selected phenotypic and molecular features and chromosomal deoxyribonucleic acid (DNA) relatedness using the spectrophotometric method. Five catalase-positive human isolates were assigned to the genomic species Eikenella corrodens on the basis of high DNA relatedness levels. Three others, among them strain Chen UB 204, exhibited only moderate degrees of DNA relatedness to the type strain and with each other. Two catalase-positive isolates from dogs were closely interrelated, but yielded only low degrees of DNA binding with Eikenella corrodens and the Eikenella-like human isolates. These findings confirm that the human eikenellas comprise more than one genomic species and that the canine strains represent a distinct taxonomic entity. The differentiation of the strains investigated by conventional phenotypic features, hydrolytic enzyme reactions, and cellular carbohydrate patterns was considered.
[Mh] Termos MeSH primário: Catalase/metabolismo
Eikenella corrodens/classificação
Eikenella/classificação
[Mh] Termos MeSH secundário: Animais
Técnicas de Tipagem Bacteriana
DNA Bacteriano/análise
Doenças do Cão/microbiologia
Cães
Eikenella/enzimologia
Eikenella/isolamento & purificação
Eikenella corrodens/enzimologia
Eikenella corrodens/isolamento & purificação
Infecções por Bactérias Gram-Negativas/microbiologia
Infecções por Bactérias Gram-Negativas/veterinária
Seres Humanos
Boca/microbiologia
Hibridização de Ácido Nucleico
Fenótipo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); EC 1.11.1.6 (Catalase)
[Em] Mês de entrada:9903
[Cu] Atualização por classe:041117
[Lr] Data última revisão:
041117
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:981223
[St] Status:MEDLINE


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Fotocópia
[PMID]:8836435
[Au] Autor:Young KA; Allaker RP; Hardie JM; Whiley RA
[Ad] Endereço:Department of Oral Microbiology, St. Bartholomew's, London, UK.
[Ti] Título:Interactions between Eikenella corrodens and 'Streptococcus milleri-group' organisms: possible mechanisms of pathogenicity in mixed infections.
[So] Source:Antonie Van Leeuwenhoek;69(4):371-3, 1996 May.
[Is] ISSN:0003-6072
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Interactions between the 'Streptococcus milleri-group' organisms (SMG; S. intermedius, S. constellatus and S. anginosus) and Eikenella corrodens were investigated. Coaggregation reactions occurred frequently between S. anginosus (83% of strain combinations) or S. constellatus (87%) and E. corrodens isolates, but were infrequent between S. intermedius and E. corrodens (28%). No enhancement of enzyme activities against lipid, phosphate, peptide and saccharide substrates tested were detected with combinations of species in comparison to the species alone. Exponential growth of S. constellatus and S. intermedius, in mixed culture with E. corrodens, occurred within 6h post inoculation, in comparison to 25h without E. corrodens. No growth stimulation of S. anginosus was observed. It is concluded that both coaggregation and growth stimulation occur between E. corrodens and SMG isolates, and may be important mechanisms in the establishment of mixed infections involving these bacteria.
[Mh] Termos MeSH primário: Aderência Bacteriana
Eikenella/metabolismo
Infecção/microbiologia
Infecção/patologia
Streptococcus/metabolismo
[Mh] Termos MeSH secundário: Divisão Celular
Meios de Cultura/química
Eikenella/classificação
Eikenella/enzimologia
Metabolismo dos Lipídeos
Peptídeos/metabolismo
Streptococcus/classificação
Streptococcus/enzimologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Culture Media); 0 (Peptides)
[Em] Mês de entrada:9612
[Cu] Atualização por classe:170819
[Lr] Data última revisão:
170819
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:960501
[St] Status:MEDLINE



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