Results 31 to 40 of about 44,973 (223)

Re-emerging of colistin for treatment of nosocomial pneumonia due to gram negative multi-drug resistant pathogens in critically ill patients

Egyptian Journal of Chest Disease and Tuberculosis, 2013
Background: Gram-negative (G-ve) bacilli, particularly Pseudomonas aeruginosa and Acinetobacter baumannii, are important opportunistic multidrug-resistant (MDR) pathogens in hospitalized patients, contributing to their morbidity and mortality.
Mohamed Amin, Alaa Rashad, Assem Fouad, Amal Abdel Azeem   +3 more
doaj   +1 more source

Circumventing colistin resistance by combining colistin and antimicrobial peptides to kill colistin-resistant and multidrug-resistant Gram-negative bacteria

Journal of Global Antimicrobial Resistance, 2020
Objectives: Colistin is a ‘last-line’ antibiotic used to treat multidrug-resistant Gram-negative bacteria, but colistin resistance has emerged. Colistin normally binds to the lipid A moiety on the bacterial outer membrane, where it then destroys the ...
Kaitlin S. Witherell, Jason Price, Ashok D. Bandaranayake, James Olson, Douglas R. Call   +4 more
doaj   +1 more source

Strategies to Improve the Lipophilicity of Hydrophilic Macromolecular Drugs

Advanced Healthcare Materials, EarlyView.
Hydrophilic macromolecular drugs can be successfully lipidized by covalent attachment of lipids, by hydrophobic ion pairing with negatively or positively charged surfactants, and by dry or wet reverse micelle formation. Lipophilicity enhancement of hydrophilic macromolecules has several benefits including stability and bioavailability improvement ...
Sera Lindner, Stefan Keim, Soheil Haddadzadegan, Odile Fernandez Romero, Katrin Zöller, Gabriel Stern, Ilaria Cesi, Krum Kafedjiiski, Andreas Bernkop‐Schnürch   +8 more
wiley   +1 more source

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

Advanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa, Gracia Mendoza, Silvia Irusta, Manuel Arruebo   +3 more
wiley   +1 more source

Serotype Is Associated With High Rate of Colistin Resistance Among Clinical Isolates of Salmonella

Frontiers in Microbiology, 2020
To investigate the prevalence, probable mechanisms and serotype correlation of colistin resistance in clinical isolates of Salmonella from patients in China, Salmonella isolates were collected from fecal and blood samples of patients. In this study, 42.8%
Qixia Luo, Yuan Wang, Hao Fu, Xiao Yu, Beiwen Zheng, Yunbo Chen, Björn Berglund, Björn Berglund, Yonghong Xiao   +8 more
doaj   +1 more source

Precise Construction of an Antimicrobial Peptide Targeting Bacterial Cell Membranes Derived From Natural Peptides

Advanced Science, EarlyView.
An AMP (P 3‐3R‐8I) based on natural peptides, which can target bacterial cell membranes, was precisely constructed via amino acid mutation. P 3‐3R‐8I exhibits antibacterial capability which could be attributed to the ability of P 3‐3R‐8I to quickly penetrate bacterial cell membranes and then to bind to bacterial DNA.
Jiaqi Huang, Bohao Liu, Xingzhuo Zhu, Deqian Qiao, Sizhe Chen, Xiaoyan Zeng, Qingqing Yang, Zihuan Wei, Yinjuan Huang, Jizhao Wang, Guangjian Zhang, Qiuyu Gong   +11 more
wiley   +1 more source

The role of pmrCAB genes in colistin-resistant Acinetobacter baumannii

Scientific Reports, 2022
The progressively increasing antimicrobial-resistant Acinetobacter baumannii infections have enforced the use of colistin as the last option for therapy, resulting in the colistin resistance evolution. This work aimed to study the pmrCAB expression in A.
Shaimaa Mohamed Seleim, Marwa Salah Mostafa, Nadia Hafez Ouda, Rania Yahia Shash   +3 more
doaj   +1 more source

Evaluation of a Product Intended for Microbiological Control in Animal Production, and Its Combination With Halquinol

Animal Research and One Health, EarlyView.
Activo Liquid and Halquinol inhibit Salmonella and Escherichia coli in culture media. Activo Liquid exhibits bactericidal action, whereas HA is bacteriostatic, and their combination results in positive or indifferent interactions. This combination effectively inhibits E. coli throughout digestion simulation, thus reducing the required concentrations of
Alberto Gonçalves Evangelista, Lucas dos Santos Janotto, Adriana Paula Possamai, Carolina Cini Perry, Francine Lemes Ribeiro, Rafael Canonenco de Araujo, Fernando Bittencourt Luciano   +6 more
wiley   +1 more source

Colistin Susceptibility and Plasmid Mediated mcr-1 Gene Prevalance among Multi Drug Resistant Clinical Isolates of Escherichia coli, Kebsiella pneumoniae and Pseudomonas aeruginosa - A Hospital Based Cross Sectional Study

Journal of Medical Sciences and Health
Introduction: The treatment options for multi drug resistant (MDR) and extensively drug resistant (XDR) Gram negative bacterial infections are limited. Colistin based combination therapy remains the last option for such infections.
Nivetha Subramanian, Mangaiyarkarasi Thiyagarajan, Udhayasankar Ranganathan, Sunil S Shivekar, R Gopal   +4 more
doaj   +1 more source

Heterogeneous Colistin-Resistance Phenotypes Coexisting in Stenotrophomonas maltophilia Isolates Influence Colistin Susceptibility Testing

Frontiers in Microbiology, 2018
The polymyxin antibiotic colistin shows in vitro activity against Stenotrophomonas maltophilia. However, an increased incidence of colistin-resistant isolates has been recently observed.
Sònia Martínez-Servat, Sònia Martínez-Servat, Daniel Yero, Daniel Yero, Pol Huedo, Pol Huedo, Roser Marquez, Gara Molina, Xavier Daura, Xavier Daura, Isidre Gibert, Isidre Gibert   +11 more
doaj   +1 more source