Results 11 to 20 of about 1,497 (166)

A case of emphysematous pyelonephritis caused by the hypermucoviscosity phenotype of Klebsiella pneumoniae

Urology Case Reports, 2023
A 70-year-old woman presented to our hospital with 38.2 °C fever. She was diagnosed with high-risk emphysematous pyelonephritis caused by string test-positive Klebsiella pneumoniae and treated with multidisciplinary therapy.
Yoshihiro Kawaguchi, Kazuhiro Tada, Ryoko Shibata, Hidehiro Ishii, Naoki Ito, Tsukasa Igawa   +5 more
doaj   +4 more sources

Population-Based Surveillance for Hypermucoviscosity Klebsiella pneumoniae Causing Community-Acquired Bacteremia in Calgary, Alberta [PDF]

Canadian Journal of Infectious Diseases and Medical Microbiology, 2013
The characteristics of hypermucoviscosity isolates among Klebsiella pneumoniae causing community-acquired bacteremia were investigated. The hypermucoviscous phenotype was present in 8.2% of K pneumoniae isolates, and was associated with rmpA and the K2 ...
Gisele Peirano, Johann DD Pitout, Kevin B Laupland, Bonnie Meatherall, Daniel B Gregson   +4 more
doaj   +8 more sources

Assessment of hypermucoviscosity as a virulence factor for experimental Klebsiella pneumoniae infections: comparative virulence analysis with hypermucoviscosity-negative strain [PDF]

BMC Microbiology, 2011
Background Klebsiella pneumoniae displaying the hypermucoviscosity (HV) phenotype are considered more virulent than HV-negative strains. Nevertheless, the emergence of tissue-abscesses-associated HV-negative isolates motivated us to re-evaluate the role ...
Liu Keh-Sen, Chen Ching-Hsien, Liu Hsu-Chung, Tang Hui-Ling, Lu Min-Chi, Lin Yi-Chun, Lin Chingju, Chiou Chien-Shun, Chiang Ming-Ko, Chen Chuan-Mu, Lai Yi-Chyi   +10 more
doaj   +7 more sources

Change of Hypermucoviscosity in the Development of Tigecycline Resistance in Hypervirulent Klebsiella pneumoniae Sequence Type 23 Strains [PDF]

Microorganisms, 2020
In this study, we developed tigecycline resistance in Klebsiella pneumoniae ST23 strains in vitro and investigated the change in virulence associated with hypermucoviscosity. In vitro-induced tigecycline-resistant (TGC-IR) K.
Suyeon Park, Haejeong Lee, Dongwoo Shin, Kwan Soo Ko   +3 more
doaj   +4 more sources

Clinical and Microbiologic Analysis of Klebsiella pneumoniae Infection: Hypermucoviscosity, Virulence Factor, Genotype, and Antimicrobial Susceptibility

Diagnostics
Hypervirulent Klebsiella pneumoniae (KP) is defined according to hypermucoviscosity or various virulence factors and is clinically associated with community-acquired liver abscess (CLA).
Miri Hyun, Ji Yeon Lee, Hyun Ah Kim
doaj   +5 more sources

A novel esterase regulates Klebsiella pneumoniae hypermucoviscosity and virulence.

PLoS Pathogens
Klebsiella pneumoniae, an emerging multidrug-resistant pathogen, exhibits hypermucoviscosity (HMV) as a critical virulence trait mediated by its capsular polysaccharide (CPS).
Lijun Wang, Zhe Wang, Hua Zhang, Qian Jin, Shuaihua Fan, Yanni Liu, Xueting Huang, Jun Guo, Chao Cai, Jing-Ren Zhang, Hui Wu   +10 more
doaj   +4 more sources

Hypermucoviscosity, rmpA, and aerobactin are associated with community-acquired Klebsiella pneumoniae bacteremic isolates causing liver abscess in Singapore

Journal of Microbiology, Immunology and Infection, 2019
Introduction: This retrospective study investigated the clinical etiology of community-acquired bacteremic Klebsiella pneumoniae infections, and characterized laboratory and genetic markers which may be associated with primary liver abscess (PLA ...
Thean Yen Tan, Melissa Ong, Yvonne Cheng, Lily Siew Yong Ng   +3 more
doaj   +4 more sources

Complete genome sequence of Klebsiella pneumoniae 1084, a hypermucoviscosity-negative K1 clinical strain [PDF]

Journal of Bacteriology, 2012
[[abstract]]We report the complete genome sequence of Klebsiella pneumoniae 1084, a hypermucoviscosity-negative K1 clinical strain. Sequencing and annotation revealed a 5,386,705-bp circular chromosome (57.4% G+C content), which contains 4,962 protein ...
Lin, AC;Liao, TL;Lin, YC;Lai, YC;Lu, MC;Chen, YT
core   +4 more sources

Occurrence and Molecular Study of Hypermucoviscous/Hypervirulence Trait in Gut Commensal K. pneumoniae from Healthy Subjects

Microorganisms, 2023
Hypervirulent Klebsiella pneumoniae (hvKp) is emerging worldwide. Hypermucoviscousity is the characteristic trait that distinguishes it from classic K. pneumoniae (cKp), which enables Kp to cause severe invasive infections.
Dina M. Osama, Bishoy M. Zaki, Wafaa S. Khalaf, Marwa Yousry A. Mohamed, Mahmoud M. Tawfick, Heba M. Amin   +5 more
doaj   +2 more sources

A Case of Hypermucoviscosity Phenotype of Klebsiella pneumoniae Liver Abscess Saved by Damage Control Strategy

Case Reports in Surgery, 2022
Liver abscess caused by the Hypermucoviscosity phenotype of Klebsiella pneumoniae (HKp) is characterized by high tissue invasiveness and multiple systemic infections. This leads to sepsis, multiple organ failure, and coagulopathy. An 80 year old man came
Sato, Keita, Takahashi, Koji, Kusuta, Tsukasa, Koji Takahashi, Tsukasa Kusuta, Keita Sato   +5 more
core   +5 more sources