Publications by authors named "J A Klem"

Gram-negatives harboring metallo-β-lactamases (MBLs) and extended-spectrum β-lactamases (ESBLs) pose a substantial risk to the public health landscape. In ongoing efforts to combat these "superbugs," we explored the clinical combination of aztreonam and ceftazidime/avibactam together with varying dosages of polymyxin B and imipenem against ( CDC Nevada) in a 9-day hollow fiber infection model (HFIM). As previously reported by our group, although the base of aztreonam and ceftazidime/avibactam alone leads to 3.

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Objectives: The proliferation of metallo-β-lactamase (MBL)-producing Pseudomonas aeruginosa represents a significant public health threat. P. aeruginosa undergoes significant phenotypic changes that drastically impair antibiotic efficacy.

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Antimicrobial resistance has emerged as one of the leading public health threats of the twenty-first century. Gram-negative pathogens have been a major contributor to the declining efficacy of antibiotics through both acquired resistance and tolerance. In this study, a pan-drug resistant (PDR), NDM-1 and CTX-M-15 co-producing isolate of K.

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Article Synopsis
  • - This study presents a new method using hybrid machine-learning techniques to optimize combination antibiotic therapies by analyzing human and in vitro data together.
  • - Researchers focused on three antibiotics—aztreonam, ceftazidime/avibactam, and polymyxin B—using a genetic algorithm to create effective treatment regimens while balancing efficacy and toxicity.
  • - The findings demonstrated that machine-learning optimization could produce effective dosage regimens for treating drug-resistant Klebsiella pneumoniae infections, offering a fresh perspective on antibiotic treatment strategies.
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Unlabelled: Fetal Alcohol Spectrum Disorders (FASD) describe ethanol-induced developmental defects including craniofacial malformations. While ethanol-sensitive genetic mutations contribute to facial malformations, the impacted cellular mechanisms remain unknown. Bmp signaling is a key regulator of epithelial morphogenesis driving facial development, providing a possible ethanol-sensitive mechanism.

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