Results 91 to 100 of about 38,167 (247)

Profiles of phenotype resistance to antibiotic other than β-lactams in Klebsiella pneumoniae ESBLs-producers, carrying blaSHV genes.

Folia Histochemica et Cytobiologica, 2011
Extended spectrum β-lactamases production is one of the most common mechanism of resistance to extended spectrum β-lactam antibiotics is increasing worldwide. Twenty five strains of Klebsiella pneumoniae isolated from clinical specimens were tested. Based on the phenotypic confirmatory test all these strains were defined as ESBL producers named ESBL(+).
Małgorzata Krawczyk, Robert Milewski, Tomasz Hauschild, Andrzej Szpak, Piotr Wieczorek, Dominika Ojdana, Paweł Sacha, Katarzyna Kaczyńska, Elżbieta Tryniszewska   +8 more
openaire   +5 more sources

Activation of the Extracytoplasmic Function σ Factor σ^P by β-Lactams in Bacillus thuringiensis Requires the Site-2 Protease RasP

mSphere, 2019
Bacteria can utilize alternative σ factors to regulate sets of genes in response to changes in the environment. The largest and most diverse group of alternative σ factors are the extracytoplasmic function (ECF) σ factors.
Theresa D. Ho, Kelsie M. Nauta, Ute Müh, Craig D. Ellermeier   +3 more
doaj   +1 more source

The Effect of Aqueous Extract and Essential Oils of the Leaves of Eucalyptus incrassate on β- Lactam Resistant Staphylococcus aureus

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
According to the extraction procedure , Eucalyptus incrassata leave sample yielded 5% and 2% w/w(Based on dry leaves ) of the aqueous extract and essential oils respectively. Disk diffusion method was used to determine the antimicrobial activity of aqueous extract and essential oils of E .
Ehab D. Salman, Abbas J. H. AL-Saedi, Amel Gh. M. AL-Kazzaz, Suhad S. Yahya   +3 more
openaire   +1 more source

β-Lactam Antibiotics Enhance the Pathogenicity of Methicillin-Resistant Staphylococcus aureus via SarA-Controlled Lipoprotein-Like Cluster Expression

mBio, 2019
Methicillin-resistant Staphylococcus aureus (MRSA) resists nearly all β-lactam antibiotics that have a bactericidal activity. However, whether the empirically used β-lactams enhance MRSA pathogenicity in vivo remains unclear.
Weilong Shang, Yifan Rao, Ying Zheng, Yi Yang, Qiwen Hu, Zhen Hu, Jizhen Yuan, Huagang Peng, Kun Xiong, Li Tan, Shu Li, Junmin Zhu, Ming Li, Xiaomei Hu, Xuhu Mao, Xiancai Rao   +15 more
doaj   +1 more source

Development of a novel heterologous β-lactam-specific whole-cell biosensor in Bacillus subtilis

Journal of Biological Engineering, 2020
Background Whole-cell biosensors are a powerful and easy-to-use screening tool for the fast and sensitive detection of chemical compounds, such as antibiotics. β-Lactams still represent one of the most important antibiotic groups in therapeutic use. They
Nina Lautenschläger, Philipp F. Popp, Thorsten Mascher   +2 more
doaj   +1 more source

Does prolonged β-lactam infusions improve clinical outcomes compared to intermittent infusions? A meta-analysis and systematic review of randomized, controlled trials

BMC Infectious Diseases, 2011
Background The emergence of multi-drug resistant Gram-negatives (MDRGNs) coupled with an alarming scarcity of new antibiotics has forced the optimization of the therapeutic potential of available antibiotics.
Van Arendonk Kyle J, Suh Yong D, Putcha Nirupama, Tamma Pranita D, Rinke Michael L   +4 more
doaj   +1 more source

OmpF channel permeability of quinolones and their comparison with β-lactams [PDF]

FEMS Microbiology Letters, 1992
Tetsuo Sawai, Akihito Yamaguchi, Akiko Saiki, Kazuki Hoshino   +3 more
openaire   +1 more source

The prevalence of gram-negative bacteria with difficult-to-treat resistance and utilization of novel β-lactam antibiotics in the southeastern United States

Antimicrobial Stewardship & Healthcare Epidemiology
Objective: To evaluate temporal trends in the prevalence of gram-negative bacteria (GNB) with difficult-to-treat resistance (DTR) in the southeastern United States.
Y. Vivian Tsai, P. Brandon Bookstaver, Joseph Kohn, Julie Ann Justo, Darrell Childress, Stefanie Stramel, Douglas Slain, Patrick Tu, Mary Joyce B. Wingler, Bruce M. Jones, Daniel T. Anderson, Megan M. Seddon, David A. Cretella, Joshua Eudy, Hana Winders, Kayla Antosz, Pamela Bailey, Majdi N. Al-Hasan   +17 more
doaj   +1 more source

Recurrence of Streptococcus agalactiae bacteremia – risk factors and complications

Journal of Microbiology, Immunology and Infection
Background: This study was undertaken to investigate the incidence and risk factors for Streptococcus agalactiae (GBS) bacteremia recurrence in patients following first episode of GBS bacteremia.
Jonathan A. Garellek, Taylor Wang, Marcia Epstein, Angela Kim, Adam Zimilover, Margaret Gorlin, Stefan Juretschko, Miriam A. Smith   +7 more
doaj   +1 more source

Interaction of β-lactam antibiotics with penicillin-binding proteins fromPseudomonas aeruginosa [PDF]

FEMS Microbiology Letters, 1982
Alfredo Rodriguez-Tebár, Fernando Rojo, Juan C. Montilla, David Vázquez   +3 more
openaire   +1 more source