Occurrence of vancomycin-resistant Staphylococcus aureus in the oral cavity of patients with dental caries.
Occurrence of vancomycin-resistant Staphylococcus aureus in the oral cavity of patients with dental caries. Acta Microbiol Immunol Hung. 2017 Sep 11;:1-9 Authors: Vellappally S, Divakar DD, Al Kheraif AA, Ramakrishnaiah R, Alqahtani A, Dalati MHN, Anil S, Khan AA, Harikrishna Varma PR Abstract Oral streptococci are the major group of microbes isolated from oral microflora. They represent frequent pathogens of infective endocarditis (IE), and it is assumed that in most of the cases oral streptococci are acquired via mucosa layer of oral cavity. Staphylococcus aureus is also frequently isolated from IE as it accounts for 20%-30% of all cases. Vancomycin has been the most reliable therapeutic agent against infections caused by methicillin-resistant S. aureus (MRSA). The main objective of this study was to examine the occurrence of S. aureus species in dental caries specimens. Antimicrobial susceptibility testing of S. aureus to four antibiotics namely vancomycin, linezolid, teicoplanin, and daptomycin was performed. Detection of vancomycin resistance was conducted using polymerase chain reaction. Among the tested 150 strains, 98 were MRSA and of that 54 were vancomycin sensitive and 27 were resistant. All 98 MRSA strains were positive for mecA and 36 yielded pvl, whereas 13 carried vanA and only 2 were positive for vanB. Majority of the isolates showed sensitivity toward daptomycin and linezolid. Strains of S. aureus exhibiting decreased susceptibility to d...
Glaxo and Johnson&Johnson top a new measure of how drugmakers do against antibiotic-resistant bacteria, which are becoming a global emergency.
In conclusion, the extended Cox modeling was used for the first time and its results showed a significant global/overall relationship between MS acquisition and dental caries. Further research using causal mediation analysis with survival data is necessary, where the mediator “presence of MS” is treated as a time-dependent variable.Caries Res 2018;52:246-252
Report says generics manufacturers trailing in battle against antibiotic resistance
Hang Pan, Narayan Paudyal, Xiaoliang Li, Weihuan Fang, Min Yue
LONDON (Reuters) - Drugmakers' response to the threat posed by "superbugs" remains patchy even after years of warnings, according to the first analysis of individual companies' efforts to tackle the antibiotic resistance crisis.
Surfers and body-boarders were three times more likely to have potentially dangerous antibiotic-resistant bacteria in their guts than non-surfers, new research from the UK shows.Reuters Health Information
In conclusion, school oral health-related environments, especially available food choices, were associated with sweets consumption behaviour and caries levels. Children in schools with integrated oral health education had better brushing habits.Caries Res 2018;52:166 –175
Conclusion: Children considered by their parents/guardians to have attention deficit have a greater chance of exhibiting dental caries, independently of household income.Caries Res 2018;52:212 –219
This study investigates the in vitro and in situ efficiency of electrospun chitosan‐based nanofibers (CNFs) as inner part of a multilayer packaging in maintaining the quality of unprocessed red meat. Activated CNF‐based packaging (CNFP) were obtained by direct electrospinning of chitosan/poly(ethylene oxide) solutions on top of a conventional multilayer food packaging. The electrospinning solutions were firstly characterized at the molecular level, mainly in terms of zeta potential and viscoelastic properties, and the evolution of the conformational structure was correlated to the nanofiber formation process. The oxyge...
In the past decades, compared with methicillin-resistant Staphylococcus aureus (S. aureus) (MRSA), the role in severe community-associated infections by methicillin-sensitive S. aureus (MSSA) has been less investigated. MSSA can cause almost two times number of bacteraemia than MRSA . However, to our knowledge, the popular perspective is that MSSA usually causes endemic infections both in community and healthcare settings and no special MSSA lineage has been identified.