Results 91 to 100 of about 1,738 (193)

Pathogenic Potential of Invasive Mucosa‐Associated Klebsiella pneumoniae Isolates in Ulcerative Colitis: Characterization of Virulence Factors and Inflammatory Response

Immunity, Inflammation and Disease, Volume 13, Issue 10, October 2025.
This study was conducted in 83 patients with ulcerative colitis (UC). Klebsiella pneumoniae isolates showed a higher prevalence of virulence genes (fimH, hcp, fyuA, irp1) compared to non‐UC controls. UC isolates exhibited increased adhesion (29% vs. 8%) and invasion (16% vs.
Ensieh Olamafar, Abbas Yadegar, Shabnam Shahrokh, Maryam Tajabadi Ebrahimi, Hamidreza Houri   +4 more
wiley   +1 more source

Summary of common gross necropsy findings in hypermucoviscous (HMV) K. pneumoniae cases in New Zealand sea lion (Phocarctos hookeri) pups at Sandy Bay, Enderby Island; 2013–18.

, 2019
Summary of common gross necropsy findings in hypermucoviscous (HMV) K. pneumoniae cases in New Zealand sea lion (Phocarctos hookeri) pups at Sandy Bay, Enderby Island; 2013–18.
Lynn Rogers (6325820), Sarah A. Michael (7908176), Wendi D. Roe (6325805), David T. S. Hayman (7208438), Rachael Gray (3247299), Ji Zhang (70438)   +5 more
core   +1 more source

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

, 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.
Marwa Yousry A. Mohamed, Bishoy M. Zaki, Wafaa S. Khalaf, Mahmoud M. Tawfick, Dina M. Osama, Heba M. Amin   +5 more
core   +1 more source

Clinical and Molecular Characteristics of Carbapenem-Resistant Hypervirulent Klebsiella pneumoniae Isolates in a Tertiary Hospital in Shanghai, China

Infection and Drug Resistance, 2021
Cong Zhou,1 Qiang Wu,1 Leqi He,1 Hui Zhang,1 Maosuo Xu,1 Baoyu Yuan,2 Zhi Jin,3 Fang Shen1 1Department of Clinical Laboratory Medicine, Shanghai Fifth People’s Hospital, Fudan University, Shanghai, People’s Republic of China; 2Department of Clinical ...
Zhou C, Wu Q, He L, Zhang H, Xu M, Yuan B, Jin Z, Shen F   +7 more
doaj  

Assessment of Hypervirulent Klebsiella pneumoniae Isolates Using Multilocus Sequence Typing in West of Iran

MicrobiologyOpen, Volume 14, Issue 4, August 2025.
This study identified eight novel sequence types (STs) of hypervirulent Klebsiella pneumoniae using MLST in western Iran. The findings highlight the genetic diversity and public health threat posed by hvKP strains. Phenotypic and genotypic methods, including PCR and MLST, were used to identify hypervirulent Klebsiella pneumoniae isolates in western ...
Mohammad Hossein Haddadi, Nourkhoda Sadeghifard, Saeed Khoshnood, Abbas Maleki, Sobhan Ghafourian, Hassan Valadbeigi   +5 more
wiley   +1 more source

The global genomic landscape of hypervirulent Klebsiella pneumoniae from 1932 to 2021

mLife, Volume 4, Issue 4, Page 378-396, August 2025.
Abstract The global spread of hypervirulent Klebsiella pneumoniae (hvKp) poses a serious public health threat. In this study, we conducted genomic epidemiology analysis on 2097 global hvKp isolates, including our 900 isolates sequenced through the Illumina platform (177 of them fully sequenced through PacBio platform), representing the most ...
Xiaoyuan Jiang, Shuangshuang Li, Cuidan Li, Zhe Yin, Fangzhou Chen, Lingfei Hu, Tianyu Lu, Xiaoqiang Liu, Yinyu Wang, Guannan Ma, Xiaoyu Wang, Fei Chen, Dongsheng Zhou   +12 more
wiley   +1 more source

Genomic characterization of hypermucoviscous Carbapenem-resistant Klebsiella pneumoniae ST25 isolates from northwest Argentina

, 2022
In recent years, an increase in the prevalence hypermucoviscous carbapenem-resistantKlebsiella pneumoniae with sequence type 25 (ST25) was detected in hospitals of Tucuman (Northwest Argentina).
Villena, Julio Cesar, Albarracín, Leonardo Miguel, Ortiz Moyano, Francisco Ramiro, Raya Tonetti, María Fernanda, Dentice Maidana, Stefania, Elean, Mariano Daniel, Jure, Maria Angela   +6 more
core   +1 more source

Mechanisms governing bacterial capsular polysaccharide attachment and chain length

Annals of the New York Academy of Sciences, Volume 1548, Issue 1, Page 80-98, June 2025.
Abstract Capsular polysaccharides (CPSs) are high‐molecular weight glycopolymers that form a capsule layer on the surface of many bacterial species. This layer serves as a crucial barrier between bacteria and their environment, protecting them from host immune responses and environmental stressors while facilitating adaptation to host niches.
Saroj Khadka, Emily L. Kinney, Brooke E. Ryan, Laura A. Mike   +3 more
wiley   +1 more source

Microbiological characteristics of hypermucoviscous Klebsiella pneumoniae isolates from different body fluids [PDF]

, 2017
Introduction: Reports of hypermucoviscous Klebsiella pneumoniae (hvKP) isolated from fluids other than blood or abscess are rare. The aim of the study was to compare clinical and microbiological characteristics of hvKP found in blood or abscess fluid ...
Xiumei Xiao, Bei Yao, Qingtao Zhou, Jie Zhang   +3 more
core   +1 more source

Septic arthritis subsequent to urosepsis caused by hypermucoviscous Klebsiella pneumoniae.

Internal medicine (Tokyo, Japan), 2013
We herein report the first case of septic arthritis caused by rmpA-positive hypermucoviscous community-acquired K. pneumoniae that followed urosepsis in a 65-year-old Japanese woman. The patient responded well to drainage of the abscesses and treatment with cefazolin. Although this virulent phenotype of K. pneumoniae has been primarily reported in Hong
Suzuki, Kei, Nakamura, Akiko, Enokiya, Tomoyuki, Iwashita, Yoshiaki, Tomatsu, Eri, Muraki, Yuichi, Kaneko, Toshihiro, Okuda, Masahiro, Katayama, Naoyuki, Imai, Hiroshi   +9 more
openaire   +2 more sources