In Vitro Activity of Ampicillin Plus Ceftriaxone Against Non- and Non- Enterococcal Isolates With/Without VanC Phenotype: Clinical Implications for Infective Endocarditis.

(1) Background: Alternative antibiotics are needed to treat infective endocarditis (IE) caused by non-/non- enterococci; we aimed to assess the in vitro activity of ampicillin plus ceftriaxone (AMP + CTR) against these enterococci and to describe its clinical efficacy in IE cases. (2) Methods: Time-kill curves with standard (ISI) and high (IHI) inocula were performed to test isolates [3 (ECAS) and 1 (EGALL)] and non- isolates [1 (EDUR), 1 (EHIR) and 1 (ERAF)]. The narrative literature review of IE cases treated with AMP + CTR was analyzed alongside three study cases.

A Contemporary Picture of Coagulase-Negative Staphylococcal Endocarditis: A Nationwide GAMES Cohort Study.

Background: Coagulase-negative staphylococci (CoNS) are an increasingly common cause of infective endocarditis (IE) and lack recent data from large studies.

Objectives: Our aim was to describe the epidemiology, clinical characteristics, and outcomes of staphylococcal IE in a contemporary nationwide cohort study, while comparing coagulase-negative staphylococcal IE (CoNSIE) to IE from Staphylococcus aureus (SAIE), and among IE caused by Staphylococcus epidermidis (SE), S. lugdunensis (SL), and other CoNS.

Membrane Phenotypic, Metabolic and Genotypic Adaptations of Strains Destined to Rapidly Develop Stable, High-Level Daptomycin Resistance during Daptomycin Exposures.

The subgroup of viridans group streptococci are important human pathogens. We previously showed that a substantial portion of strains (>25%) are 'destined' to develop rapid, high-level, and stable daptomycin (DAP) resistance (DAP-R) during DAP exposures in vitro. Such DAP-R is often accompanied by perturbations in distinct membrane phenotypes and metabolic pathways.

A Novel Generation of Tailored Antimicrobial Drugs Based on Recombinant Multidomain Proteins.

Antibiotic resistance has exponentially increased during the last years. It is necessary to develop new antimicrobial drugs to prevent and treat infectious diseases caused by multidrug- or extensively-drug resistant (MDR/XDR)-bacteria. Host Defense Peptides (HDPs) have a versatile role, acting as antimicrobial peptides and regulators of several innate immunity functions.

Emerging issues on endocarditis and the role in therapy of daptomycin plus fosfomycin.

Introduction: Methicillin-resistant and -susceptible (MRSA/MSSA) infections are a major global health-care problem. Bacteremia with exhibits high rates of morbidity and mortality and can cause complicated infections such as infective endocarditis (IE). The emerging resistance profile of is worrisome, and several international agencies have appealed for new treatment approaches to be developed.