Characterization of an Oxacillin-Susceptible mecA-Positive Staphylococcus aureus Isolate from an Imported Meat Product

Microbial Drug Resistance, Ahead of Print.
Source: Microbial Drug Resistance - Category: Microbiology Authors: Source Type: research

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Publication date: Available online 13 October 2019Source: MycoscienceAuthor(s): Katesaraporn Nuankeaw, Boonyanoot Chaiyosang, Thanapat Suebrasri, Somdej Kanokmedhakul, Saisaamorn Lumyong, Sophon BoonlueAbstractBioactive compounds of endophytic fungus Trichoderma polyalthiae were extracted from culture broth media. The crude extracts showed strong antimicrobial activity against human pathogens. Biologically active compounds were isolated and purified by chromatographic methods. The structures of the pure compounds were elucidated by spectroscopic methods. They were identified as Violaceol I and Violaceol II. These compounds...
Source: Mycoscience - Category: Biology Source Type: research
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, ...
Source: Journal of Advanced Research - Category: Research Source Type: research
Conclusions: Phosphorylated hexa-acyl disaccharides significantly augment resistance against clinically relevant Gram-negative and Gram-positive infections via enhanced leukocyte recruitment, phagocytosis, and respiratory burst functions of innate leukocytes. Improved antimicrobial protection persists for up to 10 days and is partially mediated through toll-like receptor 4.
Source: Critical Care Medicine - Category: Emergency Medicine Tags: Online Laboratory Investigations Source Type: research
Publication date: November 2019Source: Colloid and Interface Science Communications, Volume 33Author(s): Ke Xiong, Jun Li, Lei Tan, Zhenduo Cui, Zhaoyang Li, Shuilin Wu, Yanqin Liang, Shengli Zhu, Xiangmei LiuAbstractInfectious diseases caused by bacteria is always a serious problem. In this work, Ag2S nanoparticles decorated nanocubes (Ag2S/NCs) were synthesized, in which NCs were obtained by pyrolyzing the metal-organic frameworks (MOFs) at 800 °C while Ag2S were prepared by a simple ultrasonic process and solvent reaction. The former carbon nanocubes exhibited an excellent photothermal conversion efficiency of 29%...
Source: Colloids and Interface Science Communications - Category: Nanotechnology Source Type: research
v Sukhodolo Belousov The osteogenic, cytotoxic, and antibacterial activities of polysaccharide (PS-SC) and flavonoid (F-SC) fractions isolated from the leaves extract of Saussurea controversa were studied in vitro. F-SC consists of the five quercetin glycosides in the ratio 2:8:10:1:4, which were isolated from the leaves extract of S. controversa and have been characterized previously. PS-SC was first isolated from the leaves extract of S. controversa and has been described. PS-SC consists in 30 compounds is characterized by a high degree of heterogeneity with a heterogeneity index of 19.74. The Mw and Mn of PS-...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research
In this study, dopamine (DA) was self-polymerized on the surface of Polylactic acid (PLLA)/Hydroxyapatite (HA) nanowire composite fibers to form an adhesive polydopamine (PDA) membrane, and a stable silver-nanoparticles (Ag-NPs) coating layer was constructed on it by electrochemically driven Ag+ coordination and chelation through Polypyrrole (PPy) mediation, achieving steady and slow release of Ag-NPs. With optimized DA soaking time of 24 hours and soaking concentration of 0.5 g·L-1, nanoparticles were uniformly distributed on PLLA/HA/PDA/PPy/Ag composite fibers and the hydrophilicity of the composite fibers was wel...
Source: Journal of Advanced Research - Category: Research Source Type: research
ABSTRACT Objective: To report a case of varicella complicated by acute osteomyelitis in order to remind of a rare and potentially serious complication of a very common pediatric disease. Case description: A previously healthy 3-month-old female infant with 10-day history of varicella was admitted to the hospital for fever, groan and prostration. The initial laboratorial evaluation was compatible with bacterial sepsis. By the third day after admission, a swelling of the seventh left rib had developed. The ultrasound and scintigraphy evaluation suggested rib osteomyelitis. Blood cultures were negative. The patient completed ...
Source: Revista Paulista de Pediatria - Category: Pediatrics Source Type: research
The small-colony variants (SCVs) of Staphylococcus aureus were isolated from persistent and recurrent infections, especially after placement of medical devices having direct contact with human tissues. The emerge...
Source: BMC Oral Health - Category: Dentistry Authors: Tags: Case report Source Type: research
CONCLUSIONS: From the overall study it was concluded that due to the non-toxic effect, thermal stability and excellent antibacterial properties of the prepared AIGAL these are useful for potential biomedical applications. PMID: 31604415 [PubMed - as supplied by publisher]
Source: Current Pharmaceutical Design - Category: Drugs & Pharmacology Authors: Tags: Curr Pharm Des Source Type: research
Staphylococcus aureus, particularly methicillin-resistant S. aureus (MRSA), is an important human pathogen that exhibit enhanced virulence and resistance to different antibiotics. It causes a wide range of infections from mild to life-threatening conditions, both in the hospital (healthcare-associated-infections/HAIs) and in the community (community-associated-infections/CAIs), resulting in increased costs for the healthcare system [1,2]. Although there has been a recent decrease in HAIs (but not among CA invasive infections), caused by MRSA, in EEUU [3] and in some European countries [4], the attributable mortality due to...
Source: Journal of Infection - Category: Infectious Diseases Authors: Source Type: research
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