Efflux pumps positively contribute to rifampin resistance in rpoB mutant Mycobacterium tuberculosis
Background While several recent studies have documented the importance of efflux pumps as mediators of rifampin (RIF) resistance, it remains uncertain which efflux pumps play major roles in rifampin-resistant Mycobacterium tuberculosis strains harboring ...
Fanrong Meng +16 more
doaj +1 more source
Introduction: Multidrug resistance in Pseudomonas aeruginosa may be due to efflux pump overexpression. This study phenotypically examined the role of efflux pump inhibitors in decreasing antibiotic cross-resistance between beta-lactams, fluoroquinolones,
Mahshid Talebi-Taher +4 more
doaj +1 more source
The Effect of Thyme (Thymus vulgaris) Extract on the Expression of norA Efflux Pump Gene in Clinical Strains of Staphylococcus aureus [PDF]
The NorA efflux pump considered as one of the contributors to antibiotic resistance in Staphylococcus aureus strains. One of the challenges of the researchers is finding natural plant compounds with the ability to inhibit the pumps. The aim of this study
Ali Salehzadeh +3 more
doaj +1 more source
N-acetylhistidine, a novel osmolyte in the lens of Atlantic salmon (Salmo salar L.) [PDF]
Volume homeostasis is essential for the preservation of lens transparency and this is of particular significance to anadromous fish species where migration from freshwater to seawater presents severe osmotic challenges. In Atlantic salmon (Salmo salar L.)
Bjerkas, Ellen +4 more
core +1 more source
Mechanisms contributing to the cardiac inotropic effect of Na pump inhibition and reduction of extracellular Na. [PDF]
Reduction of the transsarcolemmal [Na] gradient in rabbit cardiac muscle leads to an increase in the force of contraction. This has frequently been attributed to alteration of Ca movements via the sarcolemmal Na/Ca exchange system.
Bers, DM
core
RND-type Drug Efflux Pumps from Gram-negative bacteria: Molecular Mechanism and Inhibition
Drug efflux protein complexes confer multidrug resistance on bacteria by transporting a wide spectrum of structurally diverse antibiotics. Moreover, organisms can only acquire resistance in the presence of an active efflux pump.
Henrietta eVenter +3 more
doaj +1 more source
Drug resistance is one of the most difficult challenges facing tuberculosis (TB) control. Drug efflux is among the mechanisms leading to drug resistance.
Nicoletta Campolattano +10 more
doaj +1 more source
Comparative analysis of Salmonella susceptibility and tolerance to the biocide chlorhexidine identifies a complex cellular defense network [PDF]
peer-reviewedChlorhexidine is one of the most widely used biocides in health and agricultural settings as well as in the modern food industry. It is a cationic biocide of the biguanide class. Details of its mechanism of action are largely unknown.
Aine eSheridan +13 more
core +2 more sources
Background: There is increasing emphasis on restoring the efficacy of existing antibiotics instead of developing new ones. Objectives: This study aimed to determine the role of Cremophor EL and Cremophor RH40 in the inhibition of efflux pumps in MDR ...
Muhammad Asim +9 more
doaj +1 more source
Drug absorption through a cell monolayer: a theoretical work on a non-linear three-compartment model [PDF]
The subject of analysis is a non-linear three-compartment model, widely used in pharmacological absorption studies. It has been transformed into a general form, thus leading automatically to an appropriate approximation.
Acharya +31 more
core +2 more sources

