Vancomycin resistant Staphylococcus aureus infections: A review of case updating and clinical features

Publication date: Available online 12 October 2019Source: Journal of Advanced ResearchAuthor(s): Yanguang Cong, Sijin Yang, Xiancai RaoAbstractThe infection caused by methicillin-resistant Staphylococcus aureus (MRSA) is a global threat to public health. Vancomycin remains one of the first-line drugs for the treatment of MRSA infections. However, S. aureus isolates with complete resistance to vancomycin have emerged in recent years. Vancomycin-resistant S. aureus (VRSA) is mediated by a vanA gene cluster, which is transferred from vancomycin-resistant enterococcus. Since the first VRSA isolate was recovered from Michigan, USA in 2002, 52 VRSA strains have been isolated worldwide. In this paper, we review the latest progresses in VRSA, highlighting its resistance mechanism, characteristics of VRSA infections, as well as clinical treatments.Graphical abstract
Source: Journal of Advanced Research - Category: Research Source Type: research

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In conclusion, our work may pave the way for the development of indole derivatives as adjuvants to potentiate aminoglycosides against gram-positive pathogens.
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
ConclusionsThe EO from C. camphora showed anti-MRSA activity via damaging cell membranes and disturbing the amino metabolism.Graphical abstract
Source: Journal of Ethnopharmacology - Category: Drugs & Pharmacology Source Type: research
In conclusion, wastewater effluents from the investigated poultry slaughterhouses exhibited clinically relevant bacteria (E. coli, MRSA, K. pneumoniae, species of the ACB-and E. cloacae-complexes) that contribute to the dissemination of clinically relevant resistances (i.e. bla CTX-M/SHV, mcr-1) in the environment.Importance Bacteria from livestock may be opportunistic pathogens and carriers of clinically relevant resistance genes, as many antimicrobials are used both in veterinary and human medicine. They may be released into the environment from wastewater treatment plants (WWTPs) that are influenced by wastewater from s...
Source: Applied and Environmental Microbiology - Category: Microbiology Authors: Tags: Appl Environ Microbiol Source Type: research
Conclusion. The results of the current study substantiate that PCR-dipstick can be used as an efficient detection system for MRSA and VRE directly from Gram-positive cocci-positive blood cultures. Its affordability and rapidity indicate that PCR-dipstick can be an effective tool for controlling nosocomial pathogens. PMID: 32003712 [PubMed - as supplied by publisher]
Source: Journal of Medical Microbiology - Category: Microbiology Authors: Tags: J Med Microbiol Source Type: research
Conclusion. Given the high NPVs, MRSA nares screening may be a stewardship tool for de-escalation and avoidance of empirical anti-MRSA therapy in patients who are not nasal carries of MRSA. PMID: 31988097 [PubMed - as supplied by publisher]
Source: Antimicrobial Agents and Chemotherapy - Category: Microbiology Authors: Tags: Antimicrob Agents Chemother Source Type: research
Publication date: 1 March 2020Source: Materials Chemistry and Physics, Volume 243Author(s): Samir Bouchareb, Rachida Doufnoune, Farid Riahi, Hafsa Cherif-Silini, Lassaad BelbahriAbstractGO-Ag nanohybrids have attracted tremendous attention thanks to their several potential properties. In this research work, a new approach was adopted, where Triphenylphosphine (PPh3) was used as a linkage to decorate the surface of Graphene oxide (GO) nanosheets by Silver nanoparticles (AgNPs) via a simple method. The Fourier transform infrared spectroscopy (FTIR), Ultraviolet–visible spectroscopy (UV–Vis), X-ray diffraction ana...
Source: Materials Chemistry and Physics - Category: Materials Science Source Type: research
In this study, the effect of clinical bacterial isolates on the monolayer integrity of cultured human alveolar basal epithelial cells (A549) was evaluated using the Electric Cell-Substrate Impedance Sensing (ECIS) system. ECIS is a morphological biosensor which records electrical properties of cell-covered microelectrodes in an AC circuit including impedance (ohm), resistance (ohm), and capacitance (μFarad). In the current study, fluctuations in the electrical properties of cell-covered microelectrodes reflect dynamic changes in cell morphology resulting from disrupted cell monolayers following exposure to bacteria. Usi...
Source: Journal of Microbiological Methods - Category: Microbiology Source Type: research
Abstract The development of drug-resistant bacteria and the necessity for unique antimicrobial agents, directed to the search of new habitats to screen the production of anti-infective substances. Culture-dependent studies of heterotrophic bacteria from the intertidal macroalgae thriving along the Southern coast of India resulted in the isolation of 148 strains, which were assayed for antibacterial activities against wide spectrum of pathogens including drug-resistant pathogens, methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus faecalis (VRE). Two of the most active strains w...
Source: Archives of Microbiology - Category: Microbiology Authors: Tags: Arch Microbiol Source Type: research
Abstract The threat of diminished antibiotic discovery has global healthcare in crisis. In the United States, it is estimated each year that over 2 million bacterial infections are resistant to first-line antibiotic treatments and cost in excess of 20 billion dollars. Many of these cases result from infection with the ESKAPE pathogens ( Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter sp.), which are multidrug-resistant bacteria that often cause community- and hospital-acquired infections in both healthy and immunocompromised pati...
Source: Antimicrobial Agents and Chemotherapy - Category: Microbiology Authors: Tags: Antimicrob Agents Chemother Source Type: research
CONCLUSION: Our data showed the potential of this series for exploring new and more effective antibacterial in order to develop in vivo and against other resistant bacteria. PMID: 31820692 [PubMed - as supplied by publisher]
Source: Current Topics in Medicinal Chemistry - Category: Chemistry Authors: Tags: Curr Top Med Chem Source Type: research
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