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https://www.readbyqxmd.com/read/29230499/-fulminant-sepsis-after-capnocytophaga-canimorsus-infection
#1
K Feige, Pia Hartmann, J T Lutz
Capnocytophaga canimorsus is a Gram-negative bacterium present in the oral cavities of cats and dogs. It is known for its capability to cause life-threatening sepsis following a dog bite, especially in immunocompromised patients. We report the case of a 67-year-old man who suffered from septic shock and multiorgan failure presumably following contamination of a pre-existing minor skin lesion by canine saliva. The purpose of this report is to raise awareness of Capnocytophaga canimorsus among physicians when faced with a patient presenting with fulminant septic shock and Gram-negative bacteremia, who has been exposed to dogs...
December 11, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/29181783/capnocytophaga-endodontalis-sp-nov-isolated-from-a-human-refractory-periapical-abscess
#2
Eojin Jo, Soon-Nang Park, Yun Kyong Lim, Jayoung Paek, Yeseul Shin, Hongik Kim, Si Hyun Kim, Jeong Hwan Shin, Young-Hyo Chang, Joong-Ki Kook
A novel Gram-negative, capnophilic, fusiform bacterium, designated strain ChDC OS43T, was isolated from a human refractory periapical abscess in the left mandibular second molar and was characterized by polyphasic taxonomic analysis. The 16S rRNA gene sequence revealed that the strain belongs to the genus Capnocytophaga, as it showed sequence similarities to Capnocytophaga ochracea ATCC 27872T (96.30%) and C. sputigena ATCC 33612T (96.16%). The prevalent fatty acids of strain ChDC OS43T were isoC15:0 (57.54%), C16:0 (5...
November 27, 2017: Current Microbiology
https://www.readbyqxmd.com/read/29123842/severe-sepsis-caused-by-capnocytophaga-canimorsus-complicated-by-thrombotic-microangiopathy-in-an-immunocompetent-patient
#3
Shota Maezawa, Daisuke Kudo, Keiichiro Asanuma, Daisuke Takekoshi, Ryuichiro Egashira, Shigeki Kushimoto
Case: A 61-year-old man with an unremarkable medical history was admitted with fever 7 days after being bitten by his dog. On day 3, he showed altered mental status, and laboratory data showed progressive hemolytic anemia, thrombocytopenia, hyperbilirubinemia, renal dysfunction, coagulopathy, and schistocytosis. Severe sepsis complicated with thrombotic microangiopathy caused by Capnocytophaga canimorsus was suspected. Outcome: Plasma exchange was applied to treat the thrombotic microangiopathy and resulted in platelet count increase and improved renal function, hyperbilirubinemia, and schistocytosis...
January 2017: Acute Medicine & Surgery
https://www.readbyqxmd.com/read/29097460/twelve-complete-reference-genomes-of-clinical-isolates-in-the-capnocytophaga-genus
#4
Aaron Villarma, Christopher A Gulvik, Lori A Rowe, Mili Sheth, Phalasy Juieng, Ainsley C Nicholson, Vladimir N Loparev, John R McQuiston
We report here 1 near-complete genome sequence and 12 complete genome sequences for clinical Capnocytophaga isolates. Total read coverages ranged from 211× to 737×, and genome sizes ranged from 2.41 Mb to 3.10 Mb. These genomes will enable a more comprehensive taxonomic evaluation of the Capnocytophaga genus.
November 2, 2017: Genome Announcements
https://www.readbyqxmd.com/read/29093403/sepsis-caused-by-newly-identified-capnocytophaga-canis-following-cat-bites-c-canis-is-the-third-candidate-along-with-c-canimorsus-and-c-cynodegmi-causing-zoonotic-infection
#5
Minami Taki, Yoshio Shimojima, Ayako Nogami, Takuhiro Yoshida, Michio Suzuki, Koichi Imaoka, Hiroki Momoi, Norinao Hanyu
Sepsis caused by a Capnocytophaga canis infection has only been rarely reported. A 67-year-old female with a past medical history of splenectomy was admitted to our hospital with fever and general malaise. She had been bitten by a cat. She showed disseminated intravascular coagulation and multi-organ failure because of severe sepsis. On blood culture, characteristic gram-negative fusiform rods were detected; therefore, a Capnocytophaga species infection was suspected. A nucleotide sequence analysis revealed the species to be C...
November 1, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28957954/capnocytophaga-canimorsus-endophthalmitis-after-cataract-surgery-linked-to-salivary-dog-to-human-transmission
#6
François Thommen, Onya Opota, Gilbert Greub, Katia Jaton, Yan Guex-Crosier, Thomas J Wolfensberger, Alexandre Matet
PURPOSE: To describe a case of acute postoperative bacterial endophthalmitis because of Capnocytophaga canimorsus after cataract surgery, with probable contamination through salivary droplets of dog two days after the procedure. METHODS: An 83-year-old woman who underwent uncomplicated cataract extraction with intraocular lens implantation, presented 12 days later with acute pain, redness, and vision loss in her left eye. Visual acuity was hand motion and clinical findings suggested the diagnosis of acute postoperative endophthalmitis...
September 27, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28934367/exploring-the-salivary-microbiome-of-children-stratified-by-the-oral-hygiene-index
#7
Izumi Mashima, Citra F Theodorea, Boonyanit Thaweboon, Sroisiri Thaweboon, Frank A Scannapieco, Futoshi Nakazawa
Poor oral hygiene often leads to chronic diseases such as periodontitis and dental caries resulting in substantial economic costs and diminished quality of life in not only adults but also in children. In this study, the salivary microbiome was characterized in a group of children stratified by the Simplified Oral Hygiene Index (OHI-S). Illumina MiSeq high-throughput sequencing based on the 16S rRNA was utilized to analyze 90 salivary samples (24 Good, 31 Moderate and 35 Poor oral hygiene) from a cohort of Thai children...
2017: PloS One
https://www.readbyqxmd.com/read/28934260/characterization-of-the-nasal-and-oral-microbiota-of-detection-dogs
#8
MULTICENTER STUDY
Anitha Isaiah, Aline Rodrigues Hoffmann, Russ Kelley, Paul Mundell, Jörg M Steiner, Jan S Suchodolski
Little is known about physiological factors that affect the sense of olfaction in dogs. The objectives of this study were to describe the canine nasal and oral microbiota in detection dogs. We sought to determine the bacterial composition of the nasal and oral microbiota of a diverse population of detection canines. Nasal and oral swabs were collected from healthy dogs (n = 81) from four locations-Alabama, Georgia, California, and Texas. Nasal and oral swabs were also collected from a second cohort of detection canines belonging to three different detection job categories: explosive detection dogs (SP-E; n = 22), patrol and narcotics detection dogs (P-NDD; n = 15), and vapor wake dogs (VWD-E; n = 9)...
2017: PloS One
https://www.readbyqxmd.com/read/28875948/the-tongue-microbiome-in-healthy-subjects-and-patients-with-intra-oral-halitosis
#9
Kavitha Seerangaiyan, Arie Jan van Winkelhoff, Hermie J M Harmsen, John W A Rossen, Edwin G Winkel
Intra-oral halitosis (IOH) is an unpleasant odor emanating from the oral cavity. It is thought that the microbiota of the dorsal tongue coating plays a crucial role in this condition. The aim of the study was to investigate the composition of the tongue microbiome in subjects with and without IOH. A total of 26 subjects, 16 IOH patients and 10 healthy subjects were recruited based on their organoleptic score and volatile sulfur compound (VSC) measurements. The composition of the tongue microbiome was studied using the 16s amplicon sequencing of the V3-V4 hyper variable region with an Illumina MiSeq...
September 6, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28831382/capnocytophaga-canimorsus-sepsis-in-a-methotrexate-treated-patient-with-rheumatoid-arthritis
#10
Shinobu Tamura, Asumi Koyama, Yusuke Yamashita, Chieko Shiotani, Hiromichi Nakamoto, Chiaki Nakamoto, Michio Suzuki, Yoshio Nakano, Koichi Imaoka, Takashi Sonoki, Tokuzo Fujimoto
Capnocytophaga canimorsus is a gram-negative rod that can be transmitted primarily by dog bites. This life-threatening organism commonly causes sepsis in patients with splenectomy or alcoholism. A 53-year-old rheumatoid arthritis male treated with methotrexate (MTX) for 5 years was admitted for a 4-day history of fever and dyspnea. He had been bitten on a finger by the family dog 4 days before onset. Laboratory tests revealed pancytopenia, acute renal failure, and evidence of disseminated intravascular coagulation, and he subsequently developed acute respiratory distress syndrome...
2017: IDCases
https://www.readbyqxmd.com/read/28808698/subgingival-microbiome-of-gingivitis-in-chinese-undergraduates
#11
Ke Deng, Xiang Ying Ouyang, Yi Chu, Qian Zhang
OBJECTIVE: To analyse the microbiome composition of health and gingivitis in Chinese undergraduates with high-throughput sequencing. METHODS: Sequencing of 16S rRNA gene amplicons was performed with the MiSeq system to compare subgingival bacterial communities from 54 subjects with gingivitis and 12 periodontally healthy controls. RESULTS: A total of 1,967,372 sequences representing 14 phyla, 104 genera, and 96 species were detected. Analysis of similarities (Anosim) test and Principal Component Analysis (PCA) showed significantly different community profiles between the health control and the subjects with gingivitis...
2017: Chinese Journal of Dental Research
https://www.readbyqxmd.com/read/28807152/structure-of-thrombospondin-type-3-repeats-in-bacterial-outer-membrane-protein-a-reveals-its-intra-repeat-disulfide-bond-dependent-calcium-binding-capability
#12
Shuyan Dai, Cancan Sun, Kemin Tan, Sheng Ye, Rongguang Zhang
Eukaryotic thrombospondin type 3 repeat (TT3R) is an efficient calcium ion (Ca(2+)) binding motif only found in mammalian thrombospondin family. TT3R has also been found in prokaryotic cellulase Cel5G, which was thought to forfeit the Ca(2+)-binding capability due to the formation of intra-repeat disulfide bonds, instead of the inter-repeat ones possessed by eukaryotic TT3Rs. In this study, we have identified an enormous number of prokaryotic TT3R-containing proteins belonging to several different protein families, including outer membrane protein A (OmpA), an important structural protein connecting the outer membrane and the periplasmic peptidoglycan layer in gram-negative bacteria...
September 2017: Cell Calcium
https://www.readbyqxmd.com/read/28777909/cave-canem-hbo%C3%A2-therapy-efficacy-on-capnocytophaga-canimorsus-infections-a-case-series
#13
Mariano Marmo, Romolo Villani, Raffaele Maria Di Minno, Giuseppe Noschese, Matteo Paganini, Silvia Quartesan, Alex Rizzato, Gerardo Bosco
BACKGROUND: Dog bites are a frequent injury, but the incidence and type of lesions vary across countries. Although only few patients develop complications, the treatment of advanced injuries has a considerable medical, social and economic impact. A frequently isolated pathogen in dog bite wounds is Capnocytophaga canimorsus, a bacterium that can cause sepsis or meningitis. Hyperbaric oxygen (HBO₂) therapy has been shown to be useful in treating anaerobic infections, most likely because it creates an inhospitable environment for the bacterium and enhances the patient's immune response...
March 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28739337/evaluation-of-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry-for-identification-of-human-oral-capnocytophaga-species
#14
Anne Jolivet-Gougeon, Nicolas Helsens, Elise Renard, Zohreh Tamanai-Shacoori, Martine Bonnaure-Mallet
Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) was evaluated for rapid identification of cfxA PCR positive and negative Capnocytophaga strains. Colonies were grown on blood agar, incubated anaerobically at 37 °C for 48 h, and were then evaluated by MALDI-TOF MS and 16S rRNA gene sequencing. Both methods identified all colonies to the genus level. The MALDI-TOF MS method gave the same result, at the species level, as 16S rRNA gene sequencing for 41/53 Capnocytophaga sp...
July 21, 2017: Anaerobe
https://www.readbyqxmd.com/read/28620153/premature-labor-and-neonatal-septicemia-caused-by-capnocytophaga-ochracea
#15
Abdullah A Alhifany, Thamer A Almangour, Deanne E Tabb, David H Levine
BACKGROUND Capnocytophaga ochracea is a gram-negative anaerobic organism commonly found in human oral flora. It is characteristically sensitive to beta-lactams and resistant to aminoglycosides. CASE REPORT A 23-year-old woman presented with lower abdominal pain and was admitted for premature labor at 24-weeks of gestation. At presentation, the cervix was closed and the membrane was intact; however, contractions continued, the membrane subsequently ruptured before receiving any steroids or magnesium, and the mother gave birth to a 540-gram female baby...
June 16, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28606669/effectiveness-in-the-removal-of-endotoxins-and-microbiological-profile-in-primary-endodontic-infections-using-3-different-instrumentation-systems-a-randomized-clinical-study
#16
Daiana Cavalli, Cássia Cestari Toia, Esteban Isai Flores Orozco, Rayana Duarte Khoury, Flávia Goulart da Rosa Cardoso, Marcelo Corrêa Alves, Cláudio Antônio Talge Carvalho, Marcia Carneiro Valera
INTRODUCTION: This clinical study was conducted to correlate the microbiological profile and levels of endotoxins found in primary endodontic infection with the presence of clinical features and to evaluate the removal of microorganisms and endotoxins using rotary, reciprocating, and hybrid systems for biomechanical preparation. METHODS: Thirty single root canals with primary endodontic infection were evaluated with signs and symptoms and were randomly divided into 3 groups according to the instrumentation system used (n = 10) as follows: rotary Mtwo instruments (VDW, Munich, Germany) with 8 files, the reciprocating Reciproc system (VDW) with a single file, and Genius hybrid instruments with 3 files (1 rotary and 2 reciprocating files) with irrigation using 24 mL 2...
June 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28549666/-capnocytophaga-canimorsus-a-cause-of-multi-organ-failure-accompanied-by-livedo
#17
J Brunet, D Lhermitte, A Seguin, D duCheyron
No abstract text is available yet for this article.
May 23, 2017: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/28547773/dental-and-periodontal-health-and-microbiological-and-salivary-conditions-in-patients-with-or-without-diabetes-undergoing-haemodialysis
#18
Gerhard Schmalz, Nora Schiffers, Sandra Schwabe, Radovan Vasko, Gerhard A Müller, Rainer Haak, Rainer F Mausberg, Dirk Ziebolz
OBJECTIVE: The aim of this cross-sectional study was to evaluate the dental and periodontal health, as well as the microbiological and salivary conditions, of patients with and without diabetes mellitus (DM) who are receiving haemodialysis. METHODS: One-hundred and fifty-nine haemodialysis patients were included and divided into groups according to the pre-existing diabetes status: DM or no DM. The oral examination included dental findings and assessment of the periodontal situation...
June 2017: International Dental Journal
https://www.readbyqxmd.com/read/28526202/capnocytophaga-canimorsus-an-underestimated-cause-of-periprosthetic-joint-infection
#19
Marcel Orth, Patrick Orth, Konstantinos Anagnostakos
BACKGROUND: Periprosthetic joint infection (PJI) is a major clinical problem in orthopedic surgery. Capnocytophaga canimorsus (C. canimorsus) is an unusual and hardly detectable bacterium. A review of the literature indicates that C. canimorsus affects mainly immunocompromised patients. It has not been reported to cause periprosthetic joint infections in immunocompetent patients so far. This case report aims to raise awareness of C. canimorsus in orthopedic surgery with special regard to joint arthroplasty...
May 16, 2017: Knee
https://www.readbyqxmd.com/read/28453633/role-of-dna-gyrase-and-topoisomerase-iv-mutations-in-fluoroquinolone-resistance-of-capnocytophaga-spp-clinical-isolates-and-laboratory-mutants
#20
Elodie Ehrmann, Anne Jolivet-Gougeon, Martine Bonnaure-Mallet, Thierry Fosse
Objectives: Capnocytophaga spp. are often reported to cause bacteraemia and extra-oral infections and are characterized by their significant contribution to resistance to β-lactam and macrolide-lincosamide-streptogramin antibiotics in the human oral microbiota. The implication of mutations in the quinolone resistance-determining region (QRDR) of DNA gyrase A and B ( gyrA and gyrB ) and topoisomerase IV ( parC and parE ) of fluoroquinolone (FQ)-resistant Capnocytophaga spp., hitherto unknown, was explored in this study...
August 1, 2017: Journal of Antimicrobial Chemotherapy
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