Results 41 to 50 of about 19,887 (159)

Reduced virulence in tigecycline-resistant Klebsiella pneumoniae caused by overexpression of ompR and down-regulation of ompK35

Journal of Biomedical Science, 2023
Background The development of tigecycline resistance in hypervirulent Klebsiella pneumoniae strains has resulted in decreased virulence that is associated with reduced production of capsular polysaccharides (CPS).
Suyeon Park, Hyunkeun Kim, Kwan Soo Ko
doaj   +1 more source

In vitro antimicrobial activity and resistance mechanisms of the new generation tetracycline agents, eravacycline, omadacycline, and tigecycline against clinical Staphylococcus aureus isolates

Frontiers in Microbiology, 2022
In this study, we investigated the in vitro activity and resistance mechanisms of the new generation tetracycline agents, namely eravacycline, omadacycline, and tigecycline, against Staphylococcus aureus isolates. A total of 1,017 non-duplicate S. aureus
Weiliang Zeng, Xiaotuan Zhang, Yan Liu, Yi Zhang, Mengxin Xu, Sipei Wang, Yao Sun, Tieli Zhou, Lijiang Chen   +8 more
doaj   +1 more source

Mechanisms and fitness costs of tigecycline resistance in Escherichia coli [PDF]

Journal of Antimicrobial Chemotherapy, 2013
To stepwise select tigecycline-resistant Escherichia coli mutants in vitro, determine the mutation rates, identify the resistance mechanisms, determine the resistance level and cross-resistance to other antibiotic classes, evaluate the fitness costs of tigecycline resistance mechanisms and investigate if the same in vitro-identified target genes were ...
Linkevicius, M., Sandegren, L., Andersson, D. I.   +2 more
openaire   +2 more sources

Overview of tigecycline and its role in the era of antibiotic resistance [PDF]

Brazilian Journal of Infectious Diseases, 2006
The increasing antimicrobial resistance found in the many clinically important species of bacteria that commonly cause serious and life-threatening diseases presents a difficult challenge for clinicians, especially when an appropriate initial therapy must be chosen.
Rossi, Flávia, Andreazzi, Denise
openaire   +5 more sources

Roles of Salmonella multidrug efflux pumps in tigecycline resistance [PDF]

Journal of Antimicrobial Chemotherapy, 2010
salmonella enterica strains exhibiting decreased susceptibility to tigecycline have been reported. In this study, we sought to elucidate the roles of Salmonella multidrug efflux pumps and AcrAB regulators in tigecycline resistance.we examined the involvement of multidrug efflux pumps and AcrAB regulators in resistance to tigecycline and other ...
Tsukasa, Horiyama, Eiji, Nikaido, Akihito, Yamaguchi, Kunihiko, Nishino   +3 more
openaire   +2 more sources

A systematic scoping review of metrics utilized to measure antibiotic consumption in hospital settings

British Journal of Clinical Pharmacology, EarlyView.
Abstract Antimicrobial stewardship (AMS) programs were introduced to promote the judicious use of antimicrobials and to combat antimicrobial resistance. Quantifying antibiotic consumption is an important part of AMS initiatives to achieve these objectives.
Marjan Kandimahforoujaki, Kiplin A. Patanwala, Jan‐Willem C. Alffenaar, Asad E. Patanwala   +3 more
wiley   +1 more source

Genomic Insights Into Spatiotemporal Dynamics of Acquired Azithromycin Resistance Genes in Salmonella Strains Worldwide

Food Safety and Health, EarlyView.
ABSTRACT Azithromycin has been used for clinical invasive infections caused by fluoroquinolone‐ and third‐generation cephalosporin‐resistant Salmonella, and mass drug administration with azithromycin has been used to reduce under‐5 mortality in children in some countries.
Yuhang Pei, Mengqi Qu, Ziru Yang, Xuebin Xu, Yanan Wang   +4 more
wiley   +1 more source

Combination of Lenvatinib and Antibiotics: A Potential Approach to Enhance Sensitivity in Differentiated Thyroid Cancer

International Journal of Cancer, EarlyView.
Although lenvatinib is the current first‐line therapy for radioiodine‐refractory differentiated thyroid carcinoma, its use is limited by severe side effects and reduced sensitivity. Here, the authors assessed the potential of sensitizing differentiated thyroid carcinoma tumor cells with limited lenvatinib responsiveness through the administration of ...
Celina Ablinger, Petra Huber‐Cantonati, Daniela D. Weber, Sarah Pichler, Georg Schischkow, Marta Garcia‐Miralles, Christian Pirich, Gundula Rendl, Teresa Kiener, Thomas Felder, Martin Geroldinger, Robert Terkola, Barbara Kofler, Johanna Pachmayr   +13 more
wiley   +1 more source

Presence of Tetracycline Resistance Determinants and Susceptibility to Tigecycline and Minocycline [PDF]

Antimicrobial Agents and Chemotherapy, 2005
ABSTRACT No relation between the presence of tetracycline resistance determinants tet (A) to tet (E) and the MICs of tigecycline was observed for Enterobacteriaceae , although tetracycline-susceptible isolates were more susceptible overall to tigecycline ...
Ad C, Fluit, Alice, Florijn, Jan, Verhoef, Dana, Milatovic   +3 more
openaire   +2 more sources

First emergence of acrAB and oqxAB mediated tigecycline resistance in clinical isolates of Klebsiella pneumoniae pre-dating the use of tigecycline in a Chinese hospital. [PDF]

PLoS ONE, 2014
Tigecycline is one of the few therapeutic options for treating infections caused by some multi-drug resistant pathogens, such as Klebsiella pneumoniae. However, tigecycline-resistant K. pneumoniae has been discovered recently in China. From 2009 to 2013,
Xue Zhong, Hongtao Xu, Dongke Chen, Haijian Zhou, Xin Hu, Gang Cheng   +5 more
doaj   +1 more source