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FIG. 1. Urea agar test results. Urea agar slants were inoculated as follows: (a) uninoculated, (b)Proteus mirabilis (rapidly urease positive), (c) Klebsiella pneumoniae (delayed urease positive), (d)Escherichia coli (urease negative). All samples were incubated at 37 oC for 16 hours. Stuart’s Urea Broth (4, 5)
Some species of Klebsiella, Enterobacter, and Serratia produces a positive urease reaction, but they do so more slowly. A battery of tests for biochemical properties is required to identify the coliforms and Proteus to the species level.
21 kwi 2023 · Of the pathogenic Klebsiella species, K. pneumoniae is the most prevalent and clinically important. Infections with K. pneumoniae are usually hospital-acquired and occur primarily in patients with impaired host defenses.
1 sie 2022 · Two urease operons were identified in Klebsiella pneumoniae CG43, ure-1 and ure-2. This study investigates whether a differential regulation of the expression of ure-1 and ure-2 exists and how urease activity influences the acid stress response and expression of type 1 and type 3 fimbriae.
20 lip 2023 · Identify the most common cause of hospital-acquired pneumonia in the United States. Recall patients most likely to get Klebsiella pneumonia. Review the evaluation and treatment of patients with Klebsiella pneumonia and the interprofessional team's role in managing patients with this condition.
The objectives are to determine the frequency of UTIs with Klebsiella pneumoniae in CKD, assessing clinical forms of the chronic kidney disease, favorable factors, co-morbidities and the influence of the infection on the evolution of chronic kidney failure and the degree of antibiotic susceptibility of uropathogenic K. pneumoniae.
In a previous work, signature-tagged mutagenesis was used in a murine model to identify 13 genes required for efficient colonization, two of which were involved in urea metabolism. The role of urease was further investigated by the construction and analysis of an isogenic urease-deficient mutant.
