Because of their antimicrobial activity and pharmacologic properties, fluoroquinolones should be particularly suitable for the treatment of lower respiratory tract infections, although they might be less efficient in pneumococcal diseases. In fact, the overall clinical success rate of enoxacin, ofloxacin, pefloxacin, and ciprofloxacin is greater than 85%, and their efficacy compares favorably w...

Mycobacterium tuberculosis (M. tuberculosis) is considered innately resistant to β-lactam antibiotics. However, there is evidence that susceptibility to β-lactam antibiotics in combination with β-lactamase inhibitors is variable among clinical isolates, and these may present therapeutic options for drug-resistant cases. Here we report our investigation of susceptibility to β-lactam/β-lactamase ...

Pseudomonas aeruginosa is a major cause of nosocomial infections. This organism shows a remarkable capacity to resist antibiotics, either intrinsically (because of constitutive expression of beta-lactamases and efflux pumps, combined with low permeability of the outer-membrane) or following acquisition of resistance genes (e.g., genes for beta-lactamases, or enzymes inactivating aminoglycosides...

The carbapenems are a group of broad-spectrum beta-lactam antibiotic agents of which there are three parenteral preparations currently available in South Africa, namely imimpenem/cilastatin, meropenem and ertapenem. Owing to the fact that imipenem/cilastatin and meropenem have a broad spectrum of activity that includes Pseudomonas and Acinetobacter species, they are ideal antibiotics for treatm...

Metallo-β-lactamase-producing Pseudomonas aeruginosa (MPPA) is an important nosocomial pathogen that shows resistance to all β-lactam antibiotics except monobactams. There are various types of metallo-β-lactamases (MBLs) in carbapenem-resistant P. aeruginosa including Imipenemase (IMP), Verona integron-encoded metallo-β-lactamase (VIM), Sao Paulo metallo-β-lactamase (SPM), Germany imipenemase (...

The widespread use of β-lactam antibiotics has lead to the development of resistance to this group of antibiotics in bacterial pathogens due to various types of β lactamase production. Amongst the mechanisms of resistance to third generation cephalosporins, production of extended spectrum β-lactamases (ESBLs) and AmpC β lactamases is the most common1. Since both ESBL and AmpC β-lactamase are en...

Abstract. Zghair LS, Motaweq ZY, Lafta HC. 2022. Phenotypically and genotypically estimation of virulence factors in Salmonella serovar typhi isolated from patients with enteric fever Al-Najaf, Iraq. Nusantara Bioscience 14: 128-133. Typhi, often known as fever, causes typhoid has been a major human infectious disease for centuries, surviving poor sanitation overcrowding. Only 64 (58.1%) Gram-n...

Effects of several beta-lactam antibiotics on the acetaldehyde-metabolizing system were studied using germ-free rats. Administration of cefamandole (CMD) to the rats caused a decrease in liver mitochondrial low Km aldehyde dehydrogenase activity and an increase in blood acetaldehyde level during ethanol metabolism, similar to the case in conventional rats. Oral administration of CMD produced a ...

Irena Klimienė, Modestas Ružauskas, Vytautas Špakauskas, Raimundas Mockeliūnas, Asta Pereckienė, Česlova Butrimaitė-Ambrozevičienė Veterinary Institute, Veterinary Academy of Lithuanian University of Health Sciences Tilžės str. 18, LT-47181 Kaunas, Lithuania; e-mail: [email protected] Department of Non-Infectious Diseases, Veterinary Academy, Lithuanian University of Health Sciences Tilžes st...

Resistance to extended-spectrum β-lactam antibiotics has led to a greater reliance upon carbapenems, but the expression of carbapenemases threatens to limit the utility of these drugs. Current methods to detect carbapenemase activity are suboptimal, requiring prolonged incubations during which ineffective therapy may be prescribed. We previously described a sensitive and specific assay for the ...