Results 31 to 40 of about 40,207 (173)

Streptavidins Coordinate Biotin Sequestration and Self‐Resistance Within a Biotin‐Pathway Antibiotic Network

Advanced Science, EarlyView.
A conserved genomic region between two streptavidin genes in Streptomyces packages biosynthetic gene clusters for diverse biotin‐pathway antibiotics: acidomycin, stravidin, the new non‐proteinogenic amino acid ANDA, and the new BioA inhibitor α‐methyl‐KAPA.
Sumire Kurosawa, Jingjun Mo, Xiaotong Diao, Feng Xie, Tingting Wang, Haowen Zhao, Dalei Wu, Rolf Müller, Chengzhang Fu   +8 more
wiley   +1 more source

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

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

Equisetin Restores Colistin Sensitivity against Multi-Drug Resistant Gram-Negative Bacteria

Antibiotics, 2021
The overuse of antibiotics and the scarcity of new drugs have led to a serious antimicrobial resistance crisis, especially for multi-drug resistant (MDR) Gram-negative bacteria. In the present study, we investigated the antimicrobial activity of a marine
Qi Zhang, Shang Chen, Xiaojia Liu, Wenhan Lin, Kui Zhu   +4 more
doaj   +1 more source

Targeting Lipopolysaccharide Transport Induces Membrane Lipid Remodeling and Sensitizes Acinetobacter baumannii to Colistin Treatment

Advanced Science, EarlyView.
This study identifies C4 as a lead inhibitor of the Lpt system. Notably, C4 potentiates colistin activity by disrupting LPS transport and remodeling phospholipid homeostasis, revealing a functional interplay between the Lpt and Mla systems. These findings establish a mechanistic link between Lpt inhibition and membrane lipid remodeling, positioning Lpt–
Jianya Luo, Hetianzi Zhang, Jinju Cai, Shuang Zhou, Haijie Zhang, Zhiqiang Wang, Yuan Liu   +6 more
wiley   +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

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

Mesoporous Catalytic‐Adsorptive Nanoregulator Orchestrates Biofilm eDNA/LPS Disassembly and TLR9/TLR4 Immune Reprogramming to Resolve Diabetic Foot Infections

Advanced Science, EarlyView.
Chronic diabetic wounds are hindered by a “dual trap” of biofilm resistance and hyperinflammation. A mesoporous catalytic‐adsorptive nano‐regulator is developed to dismantle this barrier through simultaneous eDNA degradation and LPS sequestration. By silencing TLR4/9‐mediated signaling, the platform clears resilient pathogens and reprograms the immune ...
Junfeng Song, Yang Song, Xirui Huang, Xingjin Li, Lifei Gao, Yixiang Wang, Tianbao Zhu, Xiaomin Li, Shuai Wang, Tiancong Zhao, Dongyuan Zhao   +10 more
wiley   +1 more source

Colistin-daptomycin, colistin-linezolid, colistin-vancomycin combination effects on colistin in multi-resistant acinetobacter baumannii strains

Medical Science and Discovery, 2018
Objective: The most important problem in the treatment of nosocomial Acinetobacter baumannii (A. baumannii) infections which is increasingly seen in recent years is that almost all strains are resistant to many antibiotics, including carbapenems, and that the extinction of antibiotic options to be used in treatment.
openaire   +3 more sources

Dual‐Functional Silent‐Region SERS Nanoplatform for Real‐Time Bacterial Tracking and Wound Healing Therapy

Advanced Science, EarlyView.
ABSTRACT Bacterial wound infections, particularly those caused by Escherichia coli and Pseudomonas aeruginosa, are difficult to treat due to biofilm formation, multidrug resistance, and chronic inflammation. Here, we report a multifunctional nanoplatform based on a surface‐enhanced Raman scattering (SERS) probe that enables simultaneous photodynamic ...
Hanbin Deng, Rui Wang, Dianqi Zhang, Wei Zhang, Jaebum Choo, Fabiao Yu, Shaowen Cheng   +6 more
wiley   +1 more source