AI Article Synopsis
Article Abstract
Mutants with enhanced beta-lactam resistance were selected from strains of Enterobacter cloacae and E. aerogenes by using three antibiotics. High-level beta-lactamase-producing mutants had similar degrees of increased resistance, enzyme substrate profiles, and isoelectric (pI) values irrespective of the selective agent. Reverse mutants from a resistant E. cloacae mutant regained the susceptibility pattern originally exhibited by the wild type, or were of enhanced susceptibility, and no longer expressed increased beta-lactamase production. beta-Lactamases of the mutants were similar in pI values to the wild-type enzyme. The increased resistance of the mutants therefore appeared to be accounted for by increased beta-lactamase production.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC181960 | PMC |
| http://dx.doi.org/10.1128/AAC.21.4.655 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Interface effect based nano-scale TiOvertical synapse device for high-density integration in neuromorphic computing system.
Nanotechnology
January 2025
Kwangwoon University, 20 Kwangwoonro Nowon-Gu Seoul, Nowon-gu, 01897, Korea (the Republic of).
To implement a neuromorphic computing system capable of efficiently processing vast amounts of unstructured data, a significant number of synapse and neuron devices are needed, resulting in increased area demands. Therefore, we developed a nanoscale vertically structured synapse device that supports high-density integration. To realize this synapse device, the interface effects between the resistive switching layer and the electrode were investigated and utilized.
View Article and Find Full Text PDFTrichinella spiralis excretory/secretory proteins mediated larval invasion via inducing gut epithelial apoptosis and barrier disruption.
PLoS Negl Trop Dis
January 2025
Department of Parasitology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China.
Background: Intestinal larva invasion is a crucial step of Trichinella spiralis infection. Intestinal infective larvae (IIL) and their excretory/secretory proteins (ESP) interact with gut epithelium, which often results in gut epithelium barrier injuries. Previous studies showed when T.
View Article and Find Full Text PDFCeftobiprole: A therapeutic update.
Am J Health Syst Pharm
January 2025
Pharmacotherapy Department, Washington State University College of Pharmacy and Pharmaceutical Sciences, Spokane, WA, USA.
Disclaimer: In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time.
View Article and Find Full Text PDFTIGIT-expression on natural killer cell subsets is an early indicator of alleviating liver inflammation following bulevirtide treatment in chronic hepatitis D.
Hepatology
January 2025
Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School, Carl-Neuberg Str. 1, 30625 Hannover, Germany.
Background Aims: Bulevirtide (BLV) is a novel and the only approved treatment option for patients with chronic hepatitis D (CHD). BLV alleviates liver inflammation already early during treatment when only minor HDV RNA changes are observed. We hypothesized that BLV-treatment may influence immune cells in CHD patients and performed a high-resolution analysis of natural killer (NK) cells before and during BLV-therapy.
View Article and Find Full Text PDFMethod for Testing Drugs Belonging to Substrates and Inhibitors of the Transporter Protein BCRP on CACO-2 Cells.
Dokl Biochem Biophys
January 2025
Ryazan State Medical University, Ryazan, Russian Federation.
Introduction: Breast cancer resistance protein (BCRP) is an efflux membrane transporter that controls the pharmacokinetics of a large number of drugs. Its activity may change when taking some endo- and exogenous substances, thus making it a link in drug interactions.
Aim: The aim of the study was to develop a methodology for testing drugs for belonging to BCRP substrates and inhibitors in vitro.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!