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European Journal of Vascular and... Feb 1998
Topics: Aged; Aneurysm, False; Bacteremia; Bacteroidaceae Infections; Fatal Outcome; Humans; Male; Prevotella; Renal Artery Obstruction
PubMed: 9551059
DOI: 10.1016/s1078-5884(98)80141-x -
Cureus Oct 2023We present the case of a 53-year-old male with complicated left-sided parapneumonic effusion due to and . Management required video-assisted thoracoscopic surgery and...
We present the case of a 53-year-old male with complicated left-sided parapneumonic effusion due to and . Management required video-assisted thoracoscopic surgery and partial decortication of the left lung. Complications during the hospital stay were extensive, including sepsis, acute hypoxic respiratory failure, alcohol withdrawal, and transient ischemic attack.
PubMed: 38022023
DOI: 10.7759/cureus.47443 -
Microbiology (Reading, England) Jul 2011In our previous study, extensive genomic rearrangements were found in two strains of the Gram-negative anaerobic bacterium Porphyromonas (Por.) gingivalis, and most of...
In our previous study, extensive genomic rearrangements were found in two strains of the Gram-negative anaerobic bacterium Porphyromonas (Por.) gingivalis, and most of these rearrangements were associated with mobile genetic elements such as insertion sequences and conjugative transposons (CTns). CTnPg1, identified in Por. gingivalis strain ATCC 33277, was the first complete CTn reported for the genus Porphyromonas. In the present study, we found that CTnPg1 can be transferred from strain ATCC 33277 to another Por. gingivalis strain, W83, at a frequency of 10(-7) to 10(-6). The excision of CTnPg1 from the chromosome in a donor cell depends on an integrase (Int; PGN_0094) encoded in CTnPg1, whereas CTnPg1 excision is independent of PGN_0084 (a DNA topoisomerase I homologue; Exc) encoded within CTnPg1 and recA (PGN_1057) on the donor chromosome. Intriguingly, however, the transfer of CTnPg1 between Por. gingivalis strains requires RecA function in the recipient. Sequencing analysis of CTnPg1-integrated sites on the chromosomes of transconjugants revealed that the consensus attachment (att) sequence is a 13 bp sequence, TTTTCNNNNAAAA. We further report that CTnPg1 is able to transfer to two other bacterial species, Bacteroides thetaiotaomicron and Prevotella oralis. In addition, CTnPg1-like CTns are located in the genomes of other oral anaerobic bacteria, Porphyromonas endodontalis, Prevotella buccae and Prevotella intermedia, with the same consensus att sequence. These results suggest that CTns in the CTnPg1 family are widely distributed among oral anaerobic Gram-negative bacteria found in humans and play important roles in horizontal gene transfer among these bacteria.
Topics: Attachment Sites, Microbiological; Bacterial Proteins; Conjugation, Genetic; DNA Topoisomerases, Type I; DNA Transposable Elements; DNA, Bacterial; Gene Transfer, Horizontal; Genes, Bacterial; Integrases; Periodontal Diseases; Polymerase Chain Reaction; Porphyromonas gingivalis; Rec A Recombinases
PubMed: 21527470
DOI: 10.1099/mic.0.047803-0 -
The Journal of Veterinary Medical... Oct 2000A retrobulbar abscess/cellulitis occurred in a Yorkshire Terrier dog. The clinical signs were exophthalmos, prolapsed nictitating membrane and purulent ocular discharge....
A retrobulbar abscess/cellulitis occurred in a Yorkshire Terrier dog. The clinical signs were exophthalmos, prolapsed nictitating membrane and purulent ocular discharge. Ultrasonography showed a marked soft tissue swelling of the retrobulbar tissues as well as echogenic parallel lines between the globe and the medial orbital rim. Surgical exploration of the orbit was performed and no foreign body was found. The pterygopalatine fossa was incised and therapeutic retrobulbar drainage attempted. A drain was placed to encourage ventral drainage of the abscess. Anaerobic cultures revealed heavy growth of gram negative rods (prevotella bivia and prevotella buccae were isolated). Recovery was successful but subsequent treatment for keratoconjunctivitis sicca was necessary. A full recovery of tear production occurred after several weeks.
Topics: Abscess; Anaerobiosis; Animals; Bacteroidaceae Infections; Cellulitis; Dog Diseases; Dogs; Male; Orbital Diseases; Prevotella; Ultrasonography
PubMed: 11073084
DOI: 10.1292/jvms.62.1105