Executive Summary: Therapeutic Monitoring of Vancomycin for Serious Methicillin ‐Resistant Staphylococcus aureus Infections: A Revised Consensus Guideline and Review of the American Society of Health‐System Pharmacists, the Infectious Diseases Society of America, the Pediatric Infectious Diseases Society, and the Society of Infectious Diseases Pharmacists

ConclusionsThe recommendations provided in this document are intended to assist the clinician in optimizing vancomycin for the treatment of invasive MRSA infections in adult and pediatric patients. An AUC/MIC by broth microdilution (BMD) ratio of 400 to 600 (assuming MICBMD of 1 mg/L) should be advocated as the target to achieve clinical efficacy while improving patient safety for patients with serious MRSA infections. In such cases, AUC ‐guided dosing and monitoring is the most accurate and optimal way to manage vancomycin therapy.
Source: Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy - Category: Drugs & Pharmacology Authors: Tags: Special Article Source Type: research

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In this study, the secondary metabolites of a lichen-derived actinomycete strain Amycolatopsis sp. YIM 130687 were investigated intensively by using three different media (4#, 302#, and 312#) for fermentation. A total of 21 compounds were isolated from the fermented extraction of the strain. The structures of all compounds were identified by the examination of HRESIMS and NMR spectra. Compounds 1-3, 5, 6, 21 were only found in the cultivation on 302# medium, while compounds 4, 9-11 were only obtained when the strain was cultured on 312# medium. On the other hand, compounds 7, 8, and 20 were only isolated from the fermentat...
Source: Current Microbiology - Category: Microbiology Authors: Tags: Curr Microbiol Source Type: research
Publication date: Available online 25 May 2020Source: Journal of Hazardous MaterialsAuthor(s): Onur Bulut, Huseyin Avni Oktem, M. Deniz Yilmaz
Source: Journal of Hazardous Materials - Category: Environmental Health Source Type: research
Abstract Biofilm-associated infections are difficult to eradicate because of their ability to tolerate antibiotics and evade host immune responses. Amoebae and/or their secreted products may provide alternative strategies to inhibit and disperse biofilms on biotic and abiotic surfaces. We evaluated the potential of five predatory amoebae - Acanthamoeba castellanii, Acanthamoeba lenticulata, Acanthamoeba polyphaga, Vermamoeba vermiformis and Dictyostelium discoideum - and their cell-free secretions to disrupt biofilms formed by methicillin-resistant Staphylococcus aureus (MRSA) and Mycobacterium bovis. The biofilm ...
Source: Microbiology - Category: Microbiology Authors: Tags: Microbiology Source Type: research
This study examined the presence of MRSA in 400 samples comprising 200 raw milks (145 from goat and 55 from sheep) and 200 nasal swabs (145 from goats and 55 from sheep) collected from ten different locations in Abeokuta, Nigeria. Samples were examined using standard bacteriological methods for the isolation and identification ofStaphylococcus aureus and culture on oxacillin (6  μg/ml) and cefoxitin (2 μg/ml) selective media for the detection of MRSA. Suspected MRSA isolates were confirmed by latex agglutination test for the detection of penicillin-binding protein 2a (PBP2a). Antibiotic susceptibility testi...
Source: Tropical Animal Health and Production - Category: Veterinary Research Source Type: research
Abstract Methionine sulfoxide reductase A (MsrA), an efflux pump belonging to ATP-binding cassette (ABC) transporter family that conferred resistance to macrolides, was detected in Methicillin-Resistant Staphylococcus aureus (MRSA) RN4220 strain. Herein we report isolation of phytoconstituents from Piper cubeba fruit methanol extract and investigated their efflux pump inhibitory potential against MsrA pump. Four isolated compounds viz. pellitorine, sesamin, piperic acid and tetrahydropiperine when studied in combination with erythromycin in S. aureus RN4220, exhibited 2-8 fold reduction in Minimum inhibitory conce...
Source: Chemistry and Biodiversity - Category: Biochemistry Authors: Tags: Chem Biodivers Source Type: research
The objective of this study was to identify and isolate lactic acid bacterial (LAB) strains from the intestinal tracts of pigs and feces of dogs and then characterize them as potential probiotics with antimicrobial activity against multidrug-resistant pathogenic bacteria. In a preliminary isolation screening, 45 of 1167 isolated LAB strains were found to have anti-S. aureus ATCC 27,735 activity. Using 16S rDNA and 16S-23S rDNA intergenic spacer region (ISR) sequences, five of these isolates were further identified as Lactobacillus animalis 30a-2, Lactobacillus reuteri 4-12E, Weissella cibaria C34, Lactococcus lactis 5-12H,...
Source: Archives of Microbiology - Category: Microbiology Authors: Tags: Arch Microbiol Source Type: research
Nasal colonization with S. aureus is a well referenced risk factor for post-operative surgical site infections (SSIs). Our healthcare system that performs>40,000 surgeries per year assessed both the diagnostic accuracy of the BD MAX StaphSR (MAX StaphSR) assay, a PCR-based test that detects and differentiates Staphylococcus aureus and methicillin-resistant Staphylococcus aureus (MRSA), compared to our standard of care culture and the subsequent clinical impact on SSIs one year after implementation.
Source: Journal of Molecular Diagnostics - Category: Pathology Authors: Tags: Regular Article Source Type: research
This study focused on Taiwan's subtropical river basin and the Puzih River, which converges from tributaries flowing through downtown and animal husbandry areas. MRSA was detected at a rate of 7.8% in the tributaries, which was higher than downstream (2.1%). The ratio of multidrug-resistant (MDR) MRSA (n = 30) to total MRSA isolates (n = 39) was 0.769, and most of the MDR MRSA isolates (66.7%, 20/30) exhibited resistance to chloramphenicol, ciprofloxacin, clindamycin, erythromycin, sulfamethoxazole-trimethoprim, and tetracycline. The number of MDR MRSA isolates in the tributaries was also higher than th...
Source: Ecotoxicology and Environmental Safety - Category: Environmental Health Authors: Tags: Ecotoxicol Environ Saf Source Type: research
Abstract Staphylococcus aureus is an opportunistic human pathogens, with the ability to produce a series of virulence factors that contribute to the severity of infections. Exfoliative toxins (ETs) are one of the important virulence factors that participating in staphylococcal scalded skin syndrome. Melittin has different biological activities, comprising of antiviral, broad spectrum antibacterial, antiprotozoal, antifungal and anti-inflammatory effects. Twelve clinical isolates of methicillin-resistant S. aureus (MRSA) and methicillin-susceptible S. aureus (MSSA) were obtained from wound infection in the burn pat...
Source: Toxicon - Category: Toxicology Authors: Tags: Toxicon Source Type: research
Authors: Hriouech S, Akhmouch AA, Mzabi A, Chefchaou H, Tanghort M, Oumokhtar B, Chami N, Remmal A Abstract The aim of this research paper is to test the antistaphylococcal effect of 1,8-cineole, amoxicillin/clavulanic acid (AMC), and gentamicin, either separately or in combination against three Staphylococcus aureus strains isolated from patients suffering from osteomyelitis. This activity was tested in vitro by using the microdilution method and the checkerboard assay. The efficacy of these three antibacterial agents was then tested in vivo by using an experimental model of methicillin-resistant S. aureus osteomy...
Source: Evidence-based Complementary and Alternative Medicine - Category: Complementary Medicine Tags: Evid Based Complement Alternat Med Source Type: research
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