Mastitis is a costly disease for dairy farmers. Some dairy farmers use herbal products, or phytoceuticals, to treat mastitis. Phytoceuticals have not been approved for this use by the United States Food and Drug Administration, and have not been tested to determine how they impact antibiotic residue detection testing. The current study tested the potential for phytoceuticals to cause positive r...

To assess the association between inclusion of a macrolide in a beta-lactam-based empirical antibiotic regimen and mortality among patients with bacteremic pneumococcal pneumonia, 10 years of data from a database were analyzed. The total available set of putative prognostic factors was subjected to stepwise logistic regression, with in-hospital death as the dependent variable. Of the 409 patien...

Beta-lactamase acquisition is the most prevalent basis for Gram-negative bacteria resistance to the beta-lactam antibiotics. The mechanism used by the most common class A Gram-negative beta-lactamases is serine acylation followed by hydrolytic deacylation, destroying the beta-lactam. The ab initio quantum mechanical/molecular mechanical (QM/MM) calculations, augmented by extensive molecular dyn...

At least 30 extended-spectrum beta-lactamases (ESB) have emerged responsible for resistance to indigestible beta-lactams (C3G) since their discovery in West Germany in 1983. Most of them are produced by enterobacteria and essentially K. pneumoniae which appeared susceptible to oxyimino-beta-lactams. A double-disk test was useful to detect such nosocomial isolates of enterobacteria (urines, bloo...

BACKGROUND The diagnosis of PPL (major determinant) and MDM (minor determinant) sensitization as relevant allergens in beta-lactam allergy has been recently hampered by withdrawal from the market of formerly available test kits. We investigated a new PPL/MDM test kit in the work-up of beta-lactam allergy. PATIENTS AND METHODS 15 patients with history of beta-lactam allergy were investigated f...

Burkholderia pseudomallei, the causative agent of melioidosis, is inherently resistant to a variety of antibiotics including aminoglycosides, macrolides, polymyxins, and beta-lactam antibiotics. Despite resistance to many beta-lactams, ceftazidime and beta-lactamase inhibitor-beta-lactam combinations are commonly used for treatment of melioidosis. Here, we examine the enzyme kinetics of beta-la...

Nghiên cứu đã thực hiện tại bệnh viện đa khoa thành phố Cần Thơ và tiến hành mẫu xét nghiệm MEDLATEC thơ từ tháng 1 năm 2022 đến 12 2022. Thiết kế nghiên cứu: mô tả cắt ngang, chọn thuận tiện, số chủng thu thập được là 262 mẫu. Kết quả: các Klebsiella pneumoniae có AmpC (+)/ESBL (-) tỷ lệ kháng cao nhất trên nhóm beta-lactam cả sinh phối họp chất ức chế beta-lactam, Ampicillin Amox- Clavulanate...