98%
921
2 minutes
20
The emergence of Staphylococcus aureus resistant to vancomycin has caused considerable concern. Such strains are currently rare, although they have been isolated from many areas of the world. Considerable controversy surrounds strains of S. aureus displaying heterogeneous resistance to vancomycin regarding their definition and methods for detection. This has led to considerable variance in estimates of prevalence (0-1.3%-20% in Japan) and has hindered efforts to define the clinical relevance of these strains. The mechanism of resistance involves a complex reorganization of cell wall metabolism, leading to a grossly thickened cell wall with reduced peptidoglycan cross-linking. There may be many different ways in which strains achieve this endpoint. Current knowledge and theories are summarized.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1146/annurev.micro.56.012302.160806 | DOI Listing |
Environ Microbiol Rep
October 2025
Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, Türkiye.
Boron toxicity and salinity are major abiotic stress factors that cause significant yield losses, particularly in arid and semi-arid regions. Hyperaccumulator plants, such as Puccinella distans (Jacq.) Parl.
View Article and Find Full Text PDFWounds
August 2025
Department of Nursing, Federal University of Ceará, Ceará, Brazil.
Background: To estimate the prevalence of biofilms in chronic wounds.
Methods: The authors performed a systematic review of prevalence studies and meta-analysis, structured according to the Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines. Articles were searched in Scopus (Elsevier), Web of Science (Clarivate), MEDLINE/PubMed (National Institutes of Health), and Embase (Elsevier) databases.
Mol Syst Biol
September 2025
Centre for Individualised Infection Medicine (CiiM), a joint venture between the Helmholtz Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany.
The complex interplay between circulating metabolites and immune responses, which is pivotal to disease pathophysiology, remains poorly understood and understudied in systematic research. Here, we performed a comprehensive analysis of the immune response and circulating metabolome in two Western European cohorts (534 and 324 healthy individuals) and one from sub-Saharan Africa (323 healthy donors). At the metabolic level, our analysis revealed sex-specific differences in the correlation between phosphatidylcholine and cytokine responses following ex vivo stimulation.
View Article and Find Full Text PDFOrthop Traumatol Surg Res
September 2025
Service de Chirurgie Orthopédique Pédiatrique, Hôpital Universitaire Robert-Debré, Assistance Publique-Hôpitaux de Paris (AP-HP), Université de Paris, 48 Boulevard Sérurier, 75019 Paris, France.
Sickle cell disease is the most common serious genetic disease in the world. It is a systemic disease, characterized by vaso-occlusive phenomena, especially in the bone capillary network. Orthopedic complications are thus the most common, with a strong impact on quality of life.
View Article and Find Full Text PDFChem Pharm Bull (Tokyo)
September 2025
Division of Natural Product Chemistry, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan.
In screening for antibacterial agents from co-cultures of Mycobacterium smegmatis and microbial resources, such as actinomycetes and fungi, the known hydroxyquinone antibiotic griseorhodin A (1) was isolated from a co-culture of actinomycete strain TMPU-20A002 and M. smegmatis. Compound 1 exhibited antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus faecalis (VRE), with minimum inhibitory concentrations of 0.
View Article and Find Full Text PDF