A new rapid and simple method was developed for the detection of Escherichia coli by constructing a recombinant T4 phage carrying the cytochrome c peroxidase gene derived from Saccharomyces cerevisiae (T4ccp) using which, the colorimetric detection of E. coli K12 was examined. The oxidation activity toward the chromogenic substrate cytochrome c was demonstrated by the cytochrome c peroxidase (CCP) produced from the T4ccp genome. The color change caused by the oxidation of the substrate could be visually perceived. The possibility of interference in the detection by the coexistence of other bacteria was assessed using Pseudomonas aeruginosa as a nontarget bacterium, and it was confirmed that the coexistence of P. aeruginosa caused no interference in the detection of E. coli K12.
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http://dx.doi.org/10.1111/1574-6968.12382 | DOI Listing |
Alzheimers Dement
December 2024
University of Connecticut, Storrs, CT, USA.
Background: With insight into the elevated levels of phosphorylation of diseased tau, it is believed that specific modifications occur in a time-dependent manner that contribute to tau's role in Alzheimer's disease pathogenesis and progression. Present methods to obtain phospho-tau (p-tau) from post-mortem tissue or recombinantly are insufficient to answer the foremost questions in the field, and there is currently no way to study each disease-relevant modification reproducibly or in isolation. To this point, learning about tau phosphorylation at the resolution of a single modification has been a major obstacle in clarifying whether certain sites are causative of disease or just a by-product of other harmful mechanisms.
View Article and Find Full Text PDFTrans R Soc Trop Med Hyg
January 2025
Department of Microbiology, Kogi State University, P.M.B. 1008 Anyigba, Nigeria.
Background: Globally, diarrhoeagenic Escherichia coli (DEC) has been implicated in the spread of waterborne diseases and abattoir wastewater has played a role in its dissemination into watersheds. This study isolated and characterised DEC from the abattoir wastewater-impacted Iyi-Etu River and other water sources at the Amansea livestock market settlement.
Methods: A total of 96 water samples comprising river water (upstream, downstream 1, downstream 2), borehole, well, sachet and abattoir wastewater samples were tested for DEC.
Front Microbiol
December 2024
Department of Clinical Laboratory, Shandong Provincial Third Hospital, Shandong University, Jinan, Shandong, China.
Introduction: The exact triggers of gallstone formation remain incompletely understood, but research indicates that microbial infection is a significant factor and can interfere with treatment. There is no consensus on the bile microbial culture profiles in previous studies, and determining the microbial profile could aid in targeted prevention and treatment. The primary aim of this study is to investigate the differences in microbial communities cultured from bile specimens of patients with gallstones.
View Article and Find Full Text PDFCureus
December 2024
Medical Microbiology, Vinayaka Mission's Kirupananda Variyar Medical College and Hospital, Salem, IND.
Introduction The antimicrobial resistance of is variable and is influenced by both geographic location and regional antibiotic use. The overuse of antibiotics, especially in hospitalised patients, suppresses the growth and persistence of drug-resistant bacteria. This study aimed to detect the prevalence of carbapenem-resistant and the genes responsible for the resistance.
View Article and Find Full Text PDFSci Rep
January 2025
Nutrition Departement, Faculty of Para-Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
This study investigated the antioxidant and antimicrobial properties, as well as the volatile compounds, of Lactobacillus bulgaricus (L. bulgaricus) postbiotics (at concentration of 150 and 300 mg/L) and their combination with chitosan coatings (0.5% and 1%) on sausage quality (with 100 ppm nitrite) during 40 days of cold storage.
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