Results 41 to 50 of about 33,804 (189)

Ursolic acid inhibits colistin efflux and curtails colistin resistant Enterobacteriaceae [PDF]

AMB Express, 2019
Colistin resistance in Enterobacteriaceae especially Klebsiella pneumoniae and Escherichia coli is driving the evolution of pan drug resistant strains. Screening a library of 13 plant nutraceuticals led to the identification of acetyl shikonin and ursolic acid, which exhibited synergy with colistin against extremely drug resistant (XDR) clinical ...
Niranjana Sri Sundaramoorthy, Harihar M. Mohan, Shankar Subramaniam, Thiagarajan Raman, Subramaniapillai Selva Ganesan, Aravind Sivasubamanian, Saisubramanian Nagarajan   +6 more
openaire   +4 more sources

Clonal expansion of colistin-resistant Acinetobacter baumannii isolates in Cape Town, South Africa

International Journal of Infectious Diseases, 2020
Objectives: To describe colistin-resistant Acinetobacter baumannii isolates in Cape Town, South Africa. Methods: A. baumannii isolates identified on Vitek 2 Advanced Expert System were collected from Tygerberg Hospital referral laboratory between 2016 ...
Yolandi Snyman, Andrew Christopher Whitelaw, Sandra Reuter, Angela Dramowski, Motlatji Reratilwe Bonnie Maloba, Mae Newton-Foot   +5 more
doaj   +1 more source

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

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

Effects of an Organic Acid Blend on Growth Performance, Redox Homeostasis, and Intestinal Microbiota of Broilers in an Antibiotic‐Free Production System Under Winter Environmental Challenges

Animal Research and One Health, EarlyView.
Schematic summary of the effects of organic acids on growth performance and gut health‐related parameters in broilers. ABSTRACT This study was conducted to evaluate the effects of an organic acid blend on growth performance, redox homeostasis, and intestinal microbiota of broilers raised in an antibiotic‐free system during the winter season in China ...
Rong‐Hui Huang, Hong‐Lin Li, Yu Zhang, Jie Wang, Shao‐Qing Wang, Xue‐Wu Li, Lane Pineda, Xiang‐Dong Kuang, Giseli Heim, Mahmoud Mohamed Khalil, Lv‐Hui Sun, Zhang‐Chao Deng   +11 more
wiley   +1 more source

The sRNA vvrr1 Modulates the VarS/VarA‐Csr System via LeuO to Regulate Biofilm Formation and Virulence in Vibrio alginolyticus

Animal Research and One Health, EarlyView.
vvrr1, a small RNA, post‐transcriptionally represses the transcriptional regulator LeuO, which directly inhibits the VarS/VarA two‐component system. This triggers a Csr cascade that relieves LuxO repression, ultimately modulating exopolysaccharide production to control biofilm formation and virulence in Vibrio alginolyticus.
Theerakamol Pengsakul, Lei Wen, Lingmin Zhao, Bei Huang, Jiang Zheng, Binfu Xu, Lixing Huang   +6 more
wiley   +1 more source

Colistin-Resistant Acinetobacter baumannii: Beyond Carbapenem Resistance [PDF]

Clinical Infectious Diseases, 2015
With an increase in the use of colistin methansulfonate (CMS) to treat carbapenem-resistant Acinetobacter baumannii infections, colistin resistance is emerging.Patients with infection or colonization due to colistin-resistant A. baumannii were identified at a hospital system in Pennsylvania. Clinical data were collected from electronic medical records.
Zubair A, Qureshi, Lauren E, Hittle, Jessica A, O'Hara, Jesabel I, Rivera, Alveena, Syed, Ryan K, Shields, Anthony W, Pasculle, Robert K, Ernst, Yohei, Doi   +8 more
openaire   +2 more sources

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

Emergence of Nosocomial Pneumonia Caused by Colistin-Resistant Escherichia coli in Patients Admitted to Chest Intensive Care Unit

Antibiotics, 2021
(1) Background: Colistin is a last-resort antibiotic used in treating multidrug-resistant Gram-negative infections. The growing emergence of colistin resistance in Escherichia coli (E.
Mohamed A. El-Mokhtar, Enas Daef, Aliae A. R. Mohamed Hussein, Maiada K. Hashem, Hebatallah M. Hassan   +4 more
doaj   +1 more source

Elimination of Fusobacterium nucleatum With Biomimetic Nanoparticles to Reverse Tumor Immunosuppression and Enhance Colorectal Cancer Therapy

Exploration, EarlyView.
Tumor‐related pathogenic bacteria can affect the treatment efficiency of tumors. Therefore, we have designed a nanoparticle that can accurately target tumor cells and related pathogenic bacteria, reverse the immunosuppressive effect of pathogenic bacteria on tumors, and synergistically enhance tumor treatment efficiency through sonodynamic therapy ...
Mengting Zhou, Jiahao Du, Cheng Li, Yefei Zhu, Kairuo Wang, Keyi Wen, Yuanyuan Zhang, Sy‐Tsong Dean Chueng, Qian Chen, Yang Zhang, Huanlong Qin   +10 more
wiley   +1 more source