scholarly journals Neisseria mucosa

2020 ◽  
Author(s):  
Keyword(s):  
Neisseria Mucosa

Exemplar Abstract for Neisseria mucosa Véron et al. 1959 (Approved Lists 1980).

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
Dorothea Taylor ◽  
George M Garrity
Keyword(s):  
Neisseria Mucosa

scholarly journals Persistence Dynamics of Antimicrobial-Resistant Neisseria in the Pharynx of Rhesus Macaques

2020 ◽  
Vol 64 (8) ◽  
Author(s):  
Eliza Thapa ◽  
Hanna M. Knauss ◽  
Benjamin A. Colvin ◽  
Benjamin A. Fischer ◽  
Nathan J. Weyand
Keyword(s):  
Rhesus Macaques ◽  
Fluoroquinolone Resistance ◽  
Host Animal ◽  
Content Type ◽  
Host Tropism ◽  
Animal Modeling ◽  
Neisseria Mucosa ◽  
Previously Treated

ABSTRACT Pharyngeal infections by Neisseria gonorrhoeae are often asymptomatic, making them difficult to treat. However, in vivo animal modeling of human pharyngeal infections by pathogenic Neisseria species is challenging due to numerous host tropism barriers. We have relied on rhesus macaques to investigate pharyngeal persistence of naturally occurring Neisseria species in response to antibiotics. These species include Neisseria mucosa, Neisseria oralis, and a species unique to macaques. Four animals previously treated intramuscularly with the fluoroquinolone enrofloxacin for 2 weeks were monitored for persistence of their preexisting Neisseria populations for a period of 10 weeks. Enrofloxacin exposure did not eliminate preexisting flora from two of the four animals. Characterization of a collection of macaque Neisseria isolates supported the hypothesis that pharyngeal persistence was linked to reduced enrofloxacin susceptibility conferred by mutations in either gyrA or parC. Interestingly, we observed a change in neisserial population dynamics for several weeks following enrofloxacin exposure. Enrofloxacin appeared to promote competition between strains for dominance in the pharyngeal niche. Specifically, following enrofloxacin treatment, strains bearing single gyrA mutations and low MICs persisted long-term. In contrast, strains with both gyrA and parC mutations and high MICs became culturally undetectable, consistent with the hypothesis that they were less fit. Our study has provided insight into pharyngeal persistence dynamics of Neisseria species bearing fluoroquinolone resistance determinants. The rhesus macaque provides a valuable host animal that may be used in the future to simulate treatment failures associated with the presence of antimicrobial-resistant Neisseria spp. in the human pharynx.

Neisseria Mucosa Peritonitis in Capd: Another Case of the “Nonpathogenic” Neisseriae Infection

1993 ◽  
Vol 13 (1) ◽  
pp. 72-72 ◽  
Author(s):  
M. Macia ◽  
N. Vega ◽  
R. Elcuaz ◽  
T. Aterido ◽  
L. Palop
Keyword(s):  
Neisseria Mucosa

Neisseria mucosa Septic Arthritis

Rheumatology ◽  
1987 ◽  
Vol 26 (4) ◽  
pp. 314-314 ◽  
Author(s):  
D. VAN LINTHOUDT ◽  
H. MODDE ◽  
H. OTT
Keyword(s):  
Septic Arthritis ◽  
Neisseria Mucosa

scholarly journals Genome sequence analyses show that Neisseria oralis is the same species as ‘ Neisseria mucosa var. heidelbergensis’

2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3920-3926 ◽  
Author(s):  
Julia S. Bennett ◽  
Keith A. Jolley ◽  
Martin C. J. Maiden
Keyword(s):  
Genome Sequence ◽  
Type Species ◽  
Whole Genome Sequence ◽  
23S Rrna ◽  
Rrna Gene ◽  
Whole Genome ◽  
Content Type ◽  
Link Type ◽  
The Family ◽  
Neisseria Mucosa

Phylogenies generated from whole genome sequence (WGS) data provide definitive means of bacterial isolate characterization for typing and taxonomy. The species status of strains recently defined with conventional taxonomic approaches as representing Neisseria oralis was examined by the analysis of sequences derived from WGS data, specifically: (i) 53 Neisseria ribosomal protein subunit (rps) genes (ribosomal multi-locus sequence typing, rMLST); and (ii) 246 Neisseria core genes (core genome MLST, cgMLST). These data were compared with phylogenies derived from 16S and 23S rRNA gene sequences, demonstrating that the N. oralis strains were monophyletic with strains described previously as representing ‘ Neisseria mucosa var. heidelbergensis’ and that this group was of equivalent taxonomic status to other well-described species of the genus Neisseria . Phylogenetic analyses also indicated that Neisseria sicca and Neisseria macacae should be considered the same species as Neisseria mucosa and that Neisseria flavescens should be considered the same species as Neisseria subflava . Analyses using rMLST showed that some strains currently defined as belonging to the genus Neisseria were more closely related to species belonging to other genera within the family; however, whole genome analysis of a more comprehensive selection of strains from within the family Neisseriaceae would be necessary to confirm this. We suggest that strains previously identified as representing ‘ N. mucosa var. heidelbergensis’ and deposited in culture collections should be renamed N. oralis . Finally, one of the strains of N. oralis was able to ferment lactose, due to the presence of β-galactosidase and lactose permease genes, a characteristic previously thought to be unique to Neisseria lactamica , which therefore cannot be thought of as diagnostic for this species; however, the rMLST and cgMLST analyses confirm that N. oralis is most closely related to N. mucosa .

P48 INFECTIVE ENDOCARDITIS CAUSED BY NEISSERIA MUCOSA

2013 ◽  
Vol 41 ◽  
pp. S21
Author(s):  
M. Logar ◽  
T. Lejko Zupanc ◽  
T. Rojko
Keyword(s):  
Infective Endocarditis ◽  
Neisseria Mucosa

Evaluation of the Microbiological Profile of Alveolar Residual Screws and Cleft-Adjacent Teeth in Individuals With Complete Unilateral Fissures

2020 ◽  
Vol 57 (10) ◽  
pp. 1182-1189
Author(s):  
Ronaldo Iurovschi ◽  
Claudia Regina Joaquim ◽  
Marcelo de Faveri ◽  
Tamires Szeremeske de Miranda ◽  
Magda Feres ◽  
...  
Keyword(s):  
Bacterial Species ◽  
Fusobacterium Nucleatum ◽  
Wilcoxon Test ◽  
Hybridization Technique ◽  
Cross Sectional ◽  
Prevotella Nigrescens ◽  
Prevotella Melaninogenica ◽  
Neisseria Mucosa ◽  
Cross Sectional Design ◽  
Prevalent Species

Objective: To evaluate the microbiota profile of residual alveolar slits and teeth adjacent to the cleft in fissured individuals. Designs: This study used a cross-sectional design. Participants: Twenty individuals, aged 14 to 24 years, who had a residual fissure in the maxillary alveolar ridge region were selected. Main outcome measures: Three sites per individual were selected for microbiological collection (the site of the residual cleft and the 2 nearest teeth). The samples were analyzed using the Checkerboard DNA–DNA hybridization technique for 73 species of bacteria. Results: All the species analyzed were found in the 2 niches (slits and teeth). The bacterial species present in the largest number in the residual cracks were Prevotella melaninogenica, Prevotella nigrescens, and Streptococcus mitis. With regard to the bacterial profiles in the mesial and distal faces, the most prevalent species were P nigrescens, Veillonella parvula, and Fusobacterium nucleatum sp vicentii. The analysis of all the collected samples demonstrated very similar profiles for the mesial and distal faces, with these 2 sites even presenting the same species in greater frequencies. Higher counts of 20 bacterial species (Wilcoxon test) were observed in the dental niche, in relation to the fissure, particularly, P nigrescens, V parvula, F nucleatum sp vicentii, and Neisseria mucosa. Conclusion: Some species were significantly more prevalent in the residual alveolar fissures and in adjacent teeth. The comparison between the profiles of the 2 niches demonstrated large differences in the most frequent species in the teeth, and no qualitative differences with regard to specific pathogens.

Endocardites à Neisseria mucosa. À propos d’un cas

1999 ◽  
Vol 29 (7) ◽  
pp. 489-490
Author(s):  
M.C. Bezian ◽  
A.M. Gavinet ◽  
P. Dabadie ◽  
H. Bermudes ◽  
C. Quentin
Keyword(s):  
Neisseria Mucosa

État septique a Neisseria mucosa chez un enfant atteint de leucémie aigue lymphoblastique

1985 ◽  
Vol 15 (5) ◽  
pp. 320
Author(s):  
C. Dauriac ◽  
A. Paris ◽  
G. Souillet ◽  
N. Philippe
Keyword(s):  
Neisseria Mucosa
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