keyword
MENU ▼
Read by QxMD icon Read
search

panton valentine

keyword
https://www.readbyqxmd.com/read/29667040/management-of-superficial-and-deep-seated-staphylococcus-aureus-skin-and-soft-tissue-infections-in-sub-saharan-africa-a-post-hoc-analysis-of-the-staphnet-cohort
#1
Abraham Alabi, Theckla Kazimoto, Marthe Lebughe, Delfino Vubil, Patrick Phaku, Inacio Mandomando, Winfried V Kern, Salim Abdulla, Alexander Mellmann, Lena Peitzmann, Markus Bischoff, Georg Peters, Mathias Herrmann, Martin P Grobusch, Frieder Schaumburg, Siegbert Rieg
PURPOSE: The incidence of Staphylococcus aureus skin and soft tissue infection (SSTI) is high in sub-Saharan Africa. This is fueled by a high prevalence of Panton-Valentine leukocidin (PVL), which can be associated with necrotizing disease. The aim was to describe the clinical presentation and the treatment of SSTI in the African setting and to identify challenges in the management. METHODS: Patients (n = 319) were recruited in DR Congo (n = 56, 17.6%), Gabon (n = 89, 27...
April 17, 2018: Infection
https://www.readbyqxmd.com/read/29662467/multilocus-sequence-typing-and-virulence-associated-gene-profile-analysis-of-staphylococcus-aureus-isolates-from-retail-ready-to-eat-food-in-china
#2
Xiaojuan Yang, Shubo Yu, Qingping Wu, Jumei Zhang, Shi Wu, Dongli Rong
The aim of this study was to characterize the subtypes and virulence profiles of 69 Staphylococcus aureus isolates obtained from retail ready-to-eat food in China. The isolates were analyzed using multilocus sequence typing (MLST) and polymerase chain reaction (PCR) analysis of important virulence factor genes, including the staphylococcal enterotoxin (SE) genes ( sea , seb , sec , sed , see , seg , seh , sei , sej ), the exfoliative toxin genes ( eta and etb ), the toxic shock syndrome toxin-1 gene ( tst ), and the Panton-Valentine leucocidin-encoding gene ( pvl )...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29657423/prevalence-and-characterization-of-panton-valentine-leukocidin-positive-staphylococcus-aureus-in-bovine-milk-in-jabalpur-district-of-madhya-pradesh-india
#3
Neeraj Shrivastava, Varsha Sharma, Arpita Shrivastav, Anju Nayak, Ajay Kumar Rai
Aim: The study aimed to investigate the Panton-Valentine leukocidin (PVL)-positive Staphylococcus aureus in bovine milk due to its public health significance. Materials and Methods: A total of 400 milk samples of bovines taken from different dairy farms and outlets of Jabalpur were screened for the S. aureus and methicillin-resistant S. aureus (MRSA). The strains were tested for the PVL gene and antimicrobial sensitivity toward 10 different classes of antimicrobial agents...
March 2018: Veterinary World
https://www.readbyqxmd.com/read/29616014/routine-whole-genome-sequencing-for-outbreak-investigations-of-staphylococcus-aureus-in-a-national-reference-center
#4
Geraldine Durand, Fabien Javerliat, Michèle Bes, Jean-Baptiste Veyrieras, Ghislaine Guigon, Nathalie Mugnier, Stéphane Schicklin, Gaël Kaneko, Emmanuelle Santiago-Allexant, Coralie Bouchiat, Patrícia Martins-Simões, Frederic Laurent, Alex Van Belkum, François Vandenesch, Anne Tristan
The French National Reference Center for Staphylococci currently uses DNA arrays and spa typing for the initial epidemiological characterization of Staphylococcus aureus strains. We here describe the use of whole-genome sequencing (WGS) to investigate retrospectively four distinct and virulent S. aureus lineages [clonal complexes (CCs): CC1, CC5, CC8, CC30] involved in hospital and community outbreaks or sporadic infections in France. We used a WGS bioinformatics pipeline based on de novo assembly (reference-free approach), single nucleotide polymorphism analysis, and on the inclusion of epidemiological markers...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29609896/pediatric-case-of-fatal-necrotizing-pneumonia-due-to-panton-valentine-leukocidin-positive-methicillin-resistant-staphylococcus-aureus-in-spain
#5
Margarita Mosquera, Laura Montero, Francisco J Pérez-Lescure, Andrés Aragón
No abstract text is available yet for this article.
March 30, 2018: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/29571899/corrigendum-to-panton-valentine-leucocidin-pvl-staphylococcus-aureus-a-position-statement-from-the-international-society-of-chemotherapy-international-journal-of-antimicrobial-agents-51-1-2018-16-25
#6
Kordo Saeed, Ian Gould, Silvano Esposito, Nusreen Ahmad-Saeed, Salman Shaheer Ahmed, Emine Alp, Abhijit M Bal, Matteo Bassetti, Eric Bonnet, Monica Chan, Geoffrey Coombs, Stephanie J Dancer, Michael Z David, Giuseppe De Simone, Matthew Dryden, Luca Guardabassi, Leif G Hanitsch, Karolin Hijazi, Renate Kruger, Andie Lee, Rasmus Leistner, Pasquale Pagliano, Elda Righi, Sylke Schneider-Burrus, Robert Leo Skov, Pierre Tattevin, Willem VanWamel, Margreet C Vos, Andreas Voss
No abstract text is available yet for this article.
March 20, 2018: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29564245/characterization-of-resistance-to-selected-antibiotics-and-panton-valentine-leukocidin-positive-staphylococcus-aureus-in-a-healthy-student-population-at-a-malaysian-university
#7
Zarizal Suhaili, Putri 'Amira Rafee, Norhidayah Mat Azis, Chew Chieng Yeo, Syafinaz Amin Nordin, Abdul Rachman Abdul Rahim, Mazen M Jamil Al-Obaidi, Mohd Nasir Mohd Desa
Introduction: This study aims to assess the antimicrobial susceptibility profiles of Staphylococcus aureus strains isolated from university students and to determine the prevalence of constitutive and inducible clindamycin resistance, the latter being able to cause therapeutic failure due to false in vitro clindamycin susceptibility. Methods: S. aureus strains were isolated from the nasal swabs of 200 health sciences students of a Malaysian university. Twelve classes of antibiotics were used to evaluate the antimicrobial susceptibility profiles with the macrolide-lincosamide-streptogramin B (MLSB ) phenotype for inducible clindamycin resistance determined by the double-diffusion test (D-test)...
March 2018: Germs
https://www.readbyqxmd.com/read/29549135/subscapularis-pyomyositis-a-rare-presentation-of-shoulder-pain
#8
Simond Jagernauth, Reece Alexander James Clough, Ali Noorani, Muaaze Ahmad
We present a rare case of a subscapularis pyomyositis in a 38-year-old woman and examine the diagnostic and surgical challenges posed. History and examination features were similar to that of septic shoulder arthritis without overlying features of warmth or erythema. Serological markers revealed a C-reactive protein of 221 mg/L and white cell count of 11.1×109 /L. A dry shoulder aspirate was obtained. Contrast-enhanced MRI demonstrated a peripheral rim-enhancing lesion within the subscapularis muscle belly with lack of central enhancement...
March 16, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29530709/predominance-of-methicillin-resistant-staphylococcus-aureus-in-the-residents-and-environments-of-long-term-care-facilities-in-taiwan
#9
Chia-Ying Liu, Chih-Cheng Lai, Hsiu-Tzy Chiang, Min-Chi Lu, Ling-Fang Wang, Tsai-Ling Tsai, Mei-Yu Kang, Yi-Ni Jan, Yi-Ting Lo, Wen-Chien Ko, Shu-Hui Tseng, Chun-Ming Lee, Po-Ren Hsueh
BACKGROUND/PURPOSE: This study investigated the distribution and persistence of multidrug resistant organisms (MDROs) including methicillin-resistant Staphylococcus aureus (MRSA), carbapenem-resistant Enterobacteriaceae (CRE), carbapenem-resistant Pseudomonas aeruginosa (CRPA), and multidrug-resistant Acinetobacter baumannii (MDRAB) in six long-term care facilities (LTCFs). METHODS: We investigated the distribution of MDROs in residents of six LTCFs and their environments from January to December 2016 (intervention period)...
February 21, 2018: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/29529928/in-vitro-susceptibility-of-ciprofloxacin-resistant-methicillin-resistant-staphylococcus-aureus-to-ototopical-therapy
#10
David D Walker, Michael Z David, Dominic Catalano, Robert Daum, Michael B Gluth
Objective Despite the rising incidence of methicillin-resistant Staphylococcus aureus (MRSA) otologic infections, choice of treatment remains controversial. Only fluoroquinolone-containing ototopical preparations are approved by the US Food and Drug Administration for middle ear application. Furthermore, American Academy of Otolaryngology-Head and Neck Surgery Foundation guidelines advocate ototopical monotherapy for both tympanostomy tube otorrhea and acute otitis externa. Unfortunately, MRSA may be ciprofloxacin resistant...
March 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29513103/characterization-of-toxin-genes-and-antimicrobial-susceptibility-of-staphylococcus-aureus-from-retail-raw-chicken-meat
#11
Suixia Li, Panpan Wang, Jialin Zhao, Luhong Zhou, Pengfei Zhang, Chengyu Fu, Jianghong Meng, Xin Wang
The aim of this study was to investigate the toxin gene profile and antimicrobial resistance of Staphylococcus aureus isolates from raw chicken in the People's Republic of China. In total, 289 S. aureus isolates were characterized by antimicrobial susceptibility testing, and genes encoding enterotoxins, exfoliative toxins, Panton-Valentine leukocidin, and toxic shock syndrome toxin were revealed by PCR. Overall, 46.0% of the isolates were positive for one or more toxin genes. A high proportion of toxin genes were pvl (26...
April 2018: Journal of Food Protection
https://www.readbyqxmd.com/read/29509649/presentation-and-investigation-of-pediatric-bone-and-joint-infections-in-the-pediatric-emergency-department
#12
Olugbenga Akinkugbe, Charles Stewart, Caoimhe McKenna
OBJECTIVE: The objective of this study was to evaluate the presenting features of bone and joint infections with a view to identify distinguishing trends that will be useful for pediatric emergency departments. METHODS: We performed a retrospective review of patient records over a 12-year period in the pediatric emergency department of a large regional pediatric teaching center serving a diverse population. RESULTS: There were 88 cases of osteoarticular infections during the study period...
March 5, 2018: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29503574/emergence-and-spread-of-worldwide-staphylococcus-aureus-clones-among-cystic-fibrosis-patients
#13
Katarzyna Garbacz, Lidia Piechowicz, Magdalena Podkowik, Aneta Mroczkowska, Joanna Empel, Jacek Bania
Background: The aim of this study was to assess the relatedness of molecular types of Staphylococcus aureus isolates colonizing cystic fibrosis (CF) patients with their antimicrobial resistance and prevalence of toxin genes. Methods: A total of 215 isolates from the airways of 107 patients with CF were tested for spa and SCC mec type, antimicrobial resistance and carriage of toxin genes. Results: t015, t084, t091, t700 and t002 were the largest group (approximately 25%) among all 69 identified spa types...
2018: Infection and Drug Resistance
https://www.readbyqxmd.com/read/29474554/rim-domain-loops-of-staphylococcal-%C3%AE-pore-forming-bi-component-toxin-s-components-recognize-target-human-erythrocytes-in-a-coordinated-manner
#14
Zhao Peng, Miyu Takeshita, Nao Shibata, Hideaki Tada, Yoshikazu Tanaka, Jun Kaneko
Staphylococcus aureus bi-component pore-forming toxins consist of S- and F-components, and form hetero-octameric beta-barrel pores on target blood cell membranes. Among them, γ-hemolysin (Hlg2 and LukF) and LukED (LukE and LukD) possess hemolytic activity, whereas the Panton -Valentine leukocidin (LukS-PV and LukF-PV) does not lyse human erythrocytes.Here, we focused on four loop structures in the rim domain of S-component, namely loops -1, -2, -3, and -4, and found that replacement of loop-4 in both Hlg2 and LukE with that of LukS-PV abolished their hemolytic activity...
February 17, 2018: Journal of Biochemistry
https://www.readbyqxmd.com/read/29454850/dissemination-of-panton-valentine-leukocidin-positive-methicillin-resistant-staphylococcus-aureus-usa300-clone-in-multiple-hospitals-in-tokyo-japan
#15
Shunsuke Takadama, Hidemasa Nakaminami, Asami Sato, Manami Shoshi, Takeshi Fujii, Norihisa Noguchi
OBJECTIVE: Panton-Valentine leukocidin (PVL) gene (lukS/F-PV)-positive community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA), particularly the USA300 clone, is a health concern worldwide. Recently, CA-MRSA clones have been found to spread and persist in hospital settings. In this study, we aimed to investigate the prevalence and molecular epidemiological features of lukS/F-PV-positive MRSA in Japanese hospitals. METHODS: A total of 3,433 MRSA isolated from nine hospitals in 2011-2015 were used...
February 15, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29442252/survey-of-staphylococcus-aureus-in-a-general-pediatric-population-and-focus-on-isolates-with-three-clinically-relevant-toxin-encoding-genes
#16
Anne Filleron, Sarah Beauregard-Birba, Thibault Mura, Fabien Aujoulat, Anne Laure Michon, Michel Rodière, Tu Anh Tran, Eric Jeziorski, Hélène Marchandin
BACKGROUND: In children, surveys on Staphylococcus aureus have focused on specific infections, situations or strains but no study has so far given an overview on S. aureus isolation without any selection. Here, we describe the overall bacteriological and clinical characteristics of S. aureus isolation in children, with a special focus on isolates harbouring tst, sea, and/or luk-PV genes, respectively, encoding the three clinically relevant toxins: toxic shock syndrome toxin-1, enterotoxin A and Panton-Valentine leukocidin...
February 13, 2018: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/29440661/panton-valentine-leukocidin-colocalizes-with-retinal-ganglion-and-amacrine-cells-and-activates-glial-reactions-and-microglial-apoptosis
#17
XuanLi Liu, Pauline Heitz, Michel Roux, Daniel Keller, Tristan Bourcier, Arnaud Sauer, Gilles Prévost, David Gaucher
Experimental models have established Panton-Valentine leukocidin (PVL) as a potential critical virulence factor during Staphylococcus aureus endophthalmitis. In the present study, we aimed to identify retinal cell targets for PVL and to analyze early retinal changes during infection. After the intravitreous injection of PVL, adult rabbits were euthanized at different time points (30 min, 1, 2, 4 and 8 h). PVL location in the retina, expression of its binding receptor C5a receptor (C5aR), and changes in Müller and microglial cells were analyzed using immunohistochemistry, Western blotting and RT-qPCR...
February 13, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29409694/effective-concentration-of-intravenous-immunoglobulin-for-neutralizing-panton-valentine-leukocidin-in-human-blood
#18
Jun Tanaka, Fumihiro Hirayama, Sayuri Yanase, Shusei Uno, Takashi Nakae, Akihito Kamizono, Hideaki Hanaki
Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) infects healthy individuals, although the precise cause remains unclear. CA-MRSA produces Panton-Valentine leukocidin (PVL), which often causes severe invasive infection; however, antitoxin drugs against PVL are limited. Intravenous immunoglobulin (IVIg) possesses antitoxin activity, but unfortunately, the optimal dose is unknown. Here, we measured the PVL neutralizing antibody titer in the plasma of Japanese individuals and sera of American donors...
February 3, 2018: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29397175/short-communication-characterization-of-staphylococcus-aureus-isolated-along-the-raw-milk-cheese-production-process-in-artisan-dairies-in-italy
#19
S Johler, G Macori, A Bellio, P L Acutis, S Gallina, L Decastelli
Staphylococcus aureus is a common cause of food-borne intoxications. Several staphylococcal food poisoning outbreaks have been linked to consumption of raw milk cheeses and artisanal cheese production. However, information on Staph. aureus isolated from artisanal raw milk cheeses and small-scale dairy production environments is very limited. Therefore, we aimed to characterize Staph. aureus isolated along the artisanal raw milk production chain by determining (1) the population structure, and (2) the presence/absence of enterotoxin genes, mecA/C, and pvl...
January 31, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29391581/panton-valentine-leukocidin-associated-with-s-aureus-osteomyelitis-activates-platelets-via-neutrophil-secretion-products
#20
Silke Niemann, Anne Bertling, Martin F Brodde, Anke C Fender, Hélène Van de Vyver, Muzaffar Hussain, Dirk Holzinger, Dirk Reinhardt, Georg Peters, Christine Heilmann, Bettina Löffler, Beate E Kehrel
Globalization and migration promote the spread of Panton-Valentine leukocidin (PVL)-positive Staphylococcus aureus strains. The toxin PVL is linked to the development of thrombosis in association with osteomyelitis. The mechanisms by which PVL drives thrombosis development are however still unknown. We demonstrate that PVL-damaged neutrophils activate platelets via neutrophil secretion products, such as α-defensins and the myeloperoxidase product HOCl, as well as the formation of HOCl-modified proteins. Neutrophil damage by PVL is blocked by anti-PVL-antibodies, explaining why especially young osteomyelitis patients with a low antibody titre against PVL suffer from thrombotic complications...
February 1, 2018: Scientific Reports
keyword
keyword
64926
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"