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Silver as an Antimicrobial Agent: The Resistance Issue
Published in Huiliang Cao, Silver Nanoparticles for Antibacterial Devices, 2017
Kristel Mijnendonckx, Rob Van Houdt
Notably, hormesis has been observed when E. coli K-12 and Cupriavidus necator H16 were exposed to sublethal concentrations of Ag NPs (Schacht et al. 2013; Xiu et al. 2012). This stimulatory effect could be elicited by the residual Ag+ in the Ag NPs stock suspension (Xiu et al. 2012) and is of significant importance to consider in antimicrobial applications of Ag NPs.
Gram negative infections in cystic fibrosis: a review of preventative and treatment options
Published in Expert Opinion on Orphan Drugs, 2020
Charlotte Addy, Steven Caskey, Damian Downey
Haemophilus influenza (H.influenzae) is a common respiratory pathogen associated with less severe disease, greater lung function preservation, and lifespan in PWCF [12,19]. A range of other Gram-negative bacilli, including Achromobacter species (spp.), Stenotrophomonas maltophilia (S. maltophilia), and Ralstonia spp., are emerging as pathogenic organisms, rising in prevalence and clinical importance (Figure 1) [8,12,16,20]. Other less common Gram negatives, with unknown clinical effects include Inquilinus limosus, and various species of Bordetella, Cupriavidus, Acinetobacter, and Xanthomonas [12]. As the majority of these bacteria are not included in registry reports, it is difficult to estimate their prevalence and influence on clinical course [3]. The impact of these emerging pathogens on disease trajectory and anti-microbial strategies requires further investigation to optimize therapy targeted to these pathogens [8,16].
Saliva microbiome alterations in dental fluorosis population
Published in Journal of Oral Microbiology, 2023
Shanshan Liu, Qiangsheng Song, Chenchen Zhang, Mengwan Li, Zhenzhen Li, Yudong Liu, Li Xu, Xiaofei Xie, Lili Zhao, Rongxiu Zhang, Qinglong Wang, Guojin Zeng, Yifan Zhang, Kai Zhang
Next, a random forest model was used to assess specific differences in the composition of the microbiota between these two groups. In total, three species (Vibrio metschnikovii, Cupriavidus pauculus, and Peptostreptococcus stomatis), three genera (Methyloversatilis, Gemella, and Cupriavidus), three families (Rhodocyclaceae, Propionibacteriaceae, and Gemellaceae), and three orders (Staphylococcales, Propionibacteriales, and Vibrionales) were identified as tentative bacteria capable of differentiating between the DF and HC groups with area under curve (AUC) values of greater than 0.9 (Figure 4).
The double-edged sword of probiotic supplementation on gut microbiota structure in Helicobacter pylori management
Published in Gut Microbes, 2022
Ali Nabavi-Rad, Amir Sadeghi, Hamid Asadzadeh Aghdaei, Abbas Yadegar, Sinéad Marian Smith, Mohammad Reza Zali
In consistent with the aforementioned studies, Wu et al. reported Dialister and Plesiomonas as the main genera in the patients undergoing H. pylori triple therapy regimen,186,187in which Plesiomonas shigelloides, as a single species in the Plesiomonas genus, is involved in gastrointestinal disorders including gastroenteritis and diarrhea.237 Nevertheless, some pathogenic bacteria, such as Achromobacter, Actinomyces, and Cupriavidus, were enriched during the study follow-up of the probiotic-supplemented group.