We confirmed the previous reports of Fleming, Nakamura et al. on the inability of lysozyme to lyse Micrococcus lysodeikticus cells at an acidic pH (3.0 - 3.5). In these conditions, lysozyme binds to the mucopolysaccharides of the cell wall without showing any lytic activity; lysis occurs at very high rate when pH is raised at neutral values by adding alkaline solutions. Our results were obtained by monitoring bacterial cultures both in aqueous solutions and on agar plates.
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Talanta
January 2025
Gazi University, Faculty of Pharmacy, Department of Analytical Chemistry, Ankara, Turkiye; METU MEMS Research and Application Center, Ankara, Turkiye. Electronic address:
Bacterial bloodstream infections cause high morbidity and mortality. Although bacteria can be detected by various methods, culture methods are often used for the detection of live, accurate, reproducible, and selective bacterial identification. However, the culture method is time-consuming, and clinicians often start treatment immediately due to the long determination time.
View Article and Find Full Text PDFEnviron Microbiome
January 2025
Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA.
Background: Viruses that infect prokaryotes (phages) constitute the most abundant group of biological agents, playing pivotal roles in microbial systems. They are known to impact microbial community dynamics, microbial ecology, and evolution. Efforts to document the diversity, host range, infection dynamics, and effects of bacteriophage infection on host cell metabolism are extremely underexplored.
View Article and Find Full Text PDFACS Infect Dis
January 2025
Pharmaceutical Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Pilani, Vidya Vihar 333031, (RJ) India.
Antimicrobial drug resistance is a significant global health challenge, causing hundreds of thousands of deaths annually and severely impacting healthcare systems worldwide. Several reported antimicrobial compounds have a guanidine motif, as the positive charge on guanidine promotes cell lysis. Therefore, pyrrole- and indole-based allylidene hydrazine carboximidamide derivatives with guanidine motifs are proposed as antimicrobial agents that mimic cationic antimicrobial peptides (CAMPs).
View Article and Find Full Text PDFChronic inflammation and heme-iron overload can result from bacterial hemolysis. Along with the synthetic drugs, numerous traditional and functional food approaches are equally trialed to eradicate the problem. As a prospective new source of dietary protein hydrolysates, freshwater mollusks () have recently drawn huge interest from researchers.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Nutritional Biochemistry, University of Hohenheim, Garbenstraße 30, 70599, Stuttgart, Germany.
Non-nutritive sweeteners (NNS) are widely employed in foodstuffs. However, it has become increasingly evident that their consumption is associated with bacterial dysbiosis, which, in turn, is linked to several health conditions, including a higher risk of type 2 diabetes and cancer. Among the NNS, stevia, whose main component is rebaudioside A (rebA), is gaining popularity in the organic food market segment.
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