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https://www.readbyqxmd.com/read/29023054/genetic-characterization-antimicrobial-resistance-patterns-and-virulence-determinants-of-staphylococcus-aureus-isolated-form-bovine-mastitis
#1
Amal Awad, Hazem Ramadan, Sherif Nasr, Ahmed Ateya, Samar Atwa
BACKGROUND AND OBJECTIVE: Staphylococcus aureus is commonly associated with mastitis in dairy herds with potential public health implications. This study was conducted to investigate the existence of S. aureus in mastitic milk and to determine the antimicrobial resistance profiles of the isolated strains as well as the resistance and virulence associated genes. MATERIALS AND METHODS: Two hundred quarter milk samples were collected from 3 dairy farms at Dakahliya (n = 2) and Damietta (n = 1) Governorates, Egypt from September to December 2016...
2017: Pakistan Journal of Biological Sciences: PJBS
https://www.readbyqxmd.com/read/29022861/molecular-characterization-prevalence-and-clinical-relevance-of-phodopus-sungorus-papillomavirus-type-1-psupv1-naturally-infecting-siberian-hamsters-phodopus-sungorus
#2
Boštjan J Kocjan, Lea Hošnjak, Joško Račnik, Marko Zadravec, Nejc Bakovnik, Blaž Cigler, Monique Ummelen, Anton H N Hopman, Nina Gale, Tanja Švara, Mitja Gombač, Mario Poljak
Phodopus sungorus papillomavirus type 1 (PsuPV1), naturally infecting Siberian hamsters (Phodopus sungorus) and clustering in the genus Pipapillomavirus (Pi-PV), is only the second PV type isolated from the subfamily of hamsters. In silico analysis of three independent complete viral genomes obtained from cervical adenocarcinoma, oral squamous cell carcinoma and normal oral mucosa revealed that PsuPV1 encodes characteristic viral proteins (E1, E2, E4, E6, E7, L1 and L2) with conserved functional domains and a highly conserved non-coding region...
October 12, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28977678/associations-between-resistance-phenotype-and-gene-expression-in-response-to-serial-exposure-to-oxacillin-and-ciprofloxacin-in-staphylococcus-aureus
#3
Md Jalal Uddin, Juhee Ahn
This study was designed to delineate the relationship between resistance phenotypes and gene expression in wild-type (SA(WT) ), oxacillin-induced (SA(OXA) ), ciprofloxacin-induced (SA(CIP) ), and clinically-acquired antibiotic-resistant Staphylococcus aureus (SA(CA) ) exposed to oxacillin (β-lactam) and ciprofloxacin (fluoroquinolone). The phenotypic response and gene expression were varied with the antibiotic exposure. SA(WT) was highly resistant to oxacillin (MIC=8 μg ml(-1) ) after serial exposure to oxacillin, while the oxacillin susceptibility was not changed in SA(WT) when exposed to ciprofloxacin (MIC=0...
October 4, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28975816/july-2017-encals-statement-on-edaravone
#4
Ammar Al-Chalabi, Peter M Andersen, Siddharthan Chandran, Adriano Chio, Philippe Corcia, Philippe Couratier, Olof Danielsson, Mamede de Carvalho, Claude Desnuelle, Torsten Grehl, Julian Grosskreutz, Trygve Holmøy, Caroline Ingre, Merete Karlsborg, Grethe Kleveland, Jan Christoph Koch, Blaz Koritnik, Magdalena KuzmaKozakiewicz, Hannu Laaksovirta, Albert Ludolph, Christopher McDermott, Thomas Meyer, Bernardo Mitre Ropero, Jesus Mora Pardina, Ingela Nygren, Susanne Petri, Mónica Povedano Panades, Francois Salachas, Pamela Shaw, Vincenzo Silani, Gert Staaf, Kirsten Svenstrup, Kevin Talbot, Ole-Bjørn Tysnes, Philip Van Damme, Anneke van der Kooi, Markus Weber, Patrick Weydt, Joachim Wolf, Orla Hardiman, Leonard H van den Berg
No abstract text is available yet for this article.
October 4, 2017: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration
https://www.readbyqxmd.com/read/28940535/experimental-and-numerical-assessment-of-hyperthermic-laser-lipolysis-with-1-064%C3%A2-nm-nd-yag-laser-on-a-porcine-fatty-tissue-model
#5
Matija Milanic, Blaz Tasic Muc, Matija Jezersek, Matjaz Lukac
BACKGROUND AND OBJECTIVES: The aim of this study was to develop experimental and numerical models for a better understanding of hyperthermic laser lipolysis (HHL). STUDY DESIGN: A 3 cm thick porcine fat sample was irradiated over a 4.3 × 4.7 cm(2) area for 2 minutes with a 1,064 nm Nd:YAG laser using 1.2 W/cm(2) irradiance. Two irradiation scenarios were considered: without and with forced air cooling. Following the irradiation, the sample was left to cool down by natural convection...
September 20, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28865851/prevalence-antimicrobial-susceptibility-and-molecular-characterization-of-staphylococcus-aureus-isolated-from-dairy-herds-in-northern-china
#6
Huimin Liu, Songli Li, Lu Meng, Lei Dong, Shengguo Zhao, Xinyi Lan, Jiaqi Wang, Nan Zheng
Staphylococcus aureus is one of the main pathogens involved in dairy cow mastitis. Monitoring of antibiotic use would prove useful to assess the risk of Staph. aureus in raw milk. The objective of this work was to investigate the prevalence of Staph. aureus strais isolated from raw milk in northern China, and to characterize antimicrobial susceptibility of these strains and their key virulence genes. In total, 195 raw milk samples were collected from 195 dairy farms located in 4 cities of northern China from May to September 2015...
November 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28862669/antimicrobial-susceptibility-of-staphylococcus-aureus-isolated-from-recreational-waters-and-beach-sand-in-eastern-cape-province-of-south-africa
#7
Olufemi Emmanuel Akanbi, Henry Akum Njom, Justine Fri, Anthony C Otigbu, Anna M Clarke
Background: Resistance of Staphylococcus aureus to commonly used antibiotics is linked to their ability to acquire and disseminate antimicrobial-resistant determinants in nature, and the marine environment may serve as a reservoir for antibiotic-resistant bacteria. This study determined the antibiotic sensitivity profile of S.aureus isolated from selected beach water and intertidal beach sand in the Eastern Cape Province of South Africa. Methods: Two hundred and forty-nine beach sand and water samples were obtained from 10 beaches from April 2015 to April 2016...
September 1, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28839000/radiosensitisation-in-vivo-by-histone-deacetylase-inhibition-with-no-increase-in-early-normal-tissue-radiation-toxicity
#8
Blaz Groselj, Jia-Ling Ruan, Helen Scott, Jessica Gorrill, Judith Nicholson, Jacqueline Kelly, Selvakumar Anbalagan, James Thompson, Michael Rl Stratford, Sarah J Jevons, Ester M Hammond, Cheryl L Scudamore, Martin Kerr, Anne E Kiltie
As the population ages, more elderly patients require radiotherapy-based treatment for their pelvic malignancies, including muscle-invasive bladder cancer, as they are unfit for major surgery. Therefore, there is an urgent need to find radiosensitising agents minimally toxic to normal tissues, including bowel and bladder, for such patients. We developed methods to determine normal tissue toxicity severity in intestine and bladder in vivo, using novel radiotherapy techniques on a small animal radiation research platform (SARRP)...
August 24, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28792216/discrete-gef5-anion-structurally-characterized-with-a-readily-synthesized-imidazolium-based-naked-fluoride-reagent
#9
Blaž Alič, Melita Tramšek, Anton Kokalj, Gašper Tavčar
The recently prepared novel naked fluoride reagent 1,3-bis(2,6-diisopropylphenyl)imidazolium fluoride ([(L(Dipp))H][F]), treated with an excess of MF4 (M = Si, Ge), results in isolation of [(L(Dipp))H][MF5] products with the elusive trigonal bipyramidal MF5(-) anions. Specific steric characteristics of the [(L(Dipp))H](+) cation readily support isolation of monomeric and discrete trigonal bipyramidal fluorido anions of silicon and germanium. Based on combination of experimental results and DFT calculations, we demonstrate that the role of bulky cation is not solely due to steric hindering but also due to electrostatic effects, which are important in the design of such uncommon species...
August 9, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28780098/prevalence-and-characterization-of-methicillin-resistant-staphylococcus-aureus-carrying-meca-or-mecc-and-methicillin-susceptible-staphylococcus-aureus-in-dairy-sheep-farms-in-central-italy
#10
G Giacinti, V Carfora, A Caprioli, D Sagrafoli, N Marri, G Giangolini, R Amoruso, M Iurescia, F Stravino, S Dottarelli, F Feltrin, A Franco, S Amatiste, A Battisti
Between January and May 2012, a total of 286 bulk tank milk samples from dairy sheep farms located in central Italy were tested for the presence of Staphylococcus aureus. One hundred fifty-three samples were positive for S. aureus (53.5%), with an average count of 2.53 log cfu/mL. A total of 679 S. aureus colonies were screened for methicillin resistance by the cefoxitin disk diffusion test, and 104 selected cefoxitin-susceptible isolates were also tested for their susceptibility to other antimicrobials representative of the most relevant classes active against Staphylococcus spp...
August 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28743973/in-vivo-efficacy-of-%C3%AE-lactam-tripropeptin-c-in-a-mouse-septicemia-model-and-the-mechanism-of-reverse-%C3%AE-lactam-resistance-in-methicillin-resistant-staphylococcus-aureus-mediated-by-tripropeptin-c
#11
Hideki Hashizume, Yoshiaki Takahashi, Tohru Masuda, Shun-Ichi Ohba, Tomokazu Ohishi, Manabu Kawada, Masayuki Igarashi
Natural lipopeptide antibiotic tripropeptin C (TPPC) revitalizes and synergistically potentiates the activities of the class of β-lactam antibiotics against methicillin-resistant Staphylococcus aureus (MRSA) but not against methicillin-sensitive S. aureus in vitro; however, the mode of action remains unclear. In the course of the study to reveal its mode of action, we found that TPPC inhibited the β-lactamase production induced by cefotiam. This prompted us to focus on the β-lactam-inducible β-lactam-resistant genes blaZ (β-lactamase) and mecA (foreign penicillin-binding protein), as they are mutually regulated by the blaZ/I/R1 and mecA/I/R1 systems...
July 26, 2017: Journal of Antibiotics
https://www.readbyqxmd.com/read/28734577/characterization-of-a-pvl-negative-community-acquired-methicillin-resistant-staphylococcus-aureus-strain-of-sequence-type-88-in-china
#12
Lu Sun, Dandan Wu, Yan Chen, Qian Wang, Haiping Wang, Yunsong Yu
Sequence type 88 community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) strain SR434, isolated from an outpatient with skin and soft tissue infection, was subjected to whole genome sequencing, antimicrobial susceptibility testing, mouse skin infection model and hemolysis analysis to identify its virulence and resistance determinants. MRSA strain SR434 is resistant to clindamycin, erythromycin and fosfomycin. Four plasmids with resistance genes were identified in this strain, including a 20,658bp blaZ-carrying plasmid, a 2473bp ermC-carrying plasmid, a 2622bp fosB7-carrying plasmid (86% identity with plasmid in a ST2590 MRSA strain) and a 4817bp lnuA-carrying plasmid (99% identity with pLNU4 from bovine coagulase-nagetive Staphylococci)...
July 13, 2017: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/28729496/a-cirrus-cloud-climate-dial
#13
Ulrike Lohmann, Blaž Gasparini
No abstract text is available yet for this article.
July 21, 2017: Science
https://www.readbyqxmd.com/read/28729209/clonal-spread-of-methicillin-resistant-staphylococcus-aureus-t6065-cc5-sccmecv-agrii-in-a-libyan-hospital
#14
Monia Khemiri, Ali Akrout Alhusain, Mohamed Salah Abbassi, Houyem El Ghaieb, Sofia Santos Costa, Adriana Belas, Constança Pomba, Salah Hammami
OBJECTIVES: The aim of this study was to characterize 32 MRSA isolates recovered from wound specimens of patients in a Hospital in Tripoli, Libya, during 2013. METHODS: MRSA isolates were characterized by determining their antibiotic susceptibilities, genes encoding antibiotic resistance and virulence factors, the SCCmec class, agr type, spa typing, PFGE and MLST. RESULTS: PFGE and MLST revealed that all isolates were clonal and belonged to the Clonal Complex 5 (CC5)...
September 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28727158/hplc-fingerprinting-approach-for-raw-material-assessment-and-unit-operation-tracking-for-ivig-production-from-cohn-i-ii-iii-fraction
#15
Sebastijan Peljhan, Tina Jakop, Dunja Šček, Vid Skvarča, Blaž Goričar, Romina Žabar, Nina Mencin
The plasma-derived IgG used either for diagnostic purpose or intravenous application (in form of IVIG) in various medical therapies is certainly gaining more and more attention on annual basis. Different manufacturing processes are used to isolate immunoglobulins from human plasma. However, a quest for alternative paths in IgG isolation not only requires development of the most efficient isolation process, but also a rapid and reliable analytics to track the purification. Fast and reliable fingerprint-based method for characterization of IgG prepared from Cohn I+II+III paste is presented in this paper...
July 20, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28717309/molecular-characterization-of-antibiotic-resistant-staphylococcus-aureus-from-livestock-bovine-and-swine
#16
Asima Zehra, Randhir Singh, Simranpreet Kaur, J P S Gill
AIM: The aim of this study was to figure the prevalence, phenotypic and genotypic antibiotic resistance (AR) pattern of Staphylococcus aureus isolated from bovine and swine nares. MATERIALS AND METHODS: Colonies with typical morphology on Baird-Parker agar supplemented with egg-yolk tellurite emulsion were selected and biochemically/genotypically identified as S. aureus. These strains were further subjected to epsilometer test for their sensitivity to various clinically important antibiotics and antibiotic susceptibility testing for amoxicillin/clavulanic acid, and double-disk diffusion testing was performed by the standard disc diffusion method following CLSI guidelines...
June 2017: Veterinary World
https://www.readbyqxmd.com/read/28713454/balance-basic-anthropometrics-and-performance-in-young-alpine-skiers-longitudinal-analysis-of-the-associations-during-two-competitive-seasons
#17
Blaz Lesnik, Damir Sekulic, Matej Supej, Michael R Esco, Milan Zvan
Balance is hypothesized to be important in alpine skiing, while it is known that balance depends on anthropometric indices. The aim of this investigation was to explore the association between balance, anthropometrics and skiing-results over two competitive seasons among youth alpine-skiers. Eighty-one skiers (40 females) participated in this study. The participants were tested twice over two competitive seasons: when they were 12-13 years old (U14) and when they were 14-15 years old (U16). The variables consisted of anthropometrics (body height and body mass) and three balance indexes (medio-lateral-, anterio-posterior- and overall-stability-index)...
June 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28669380/acute-kidney-injury-in-critically-ill-adult-patients-with-seasonal-influenza-infection
#18
Ana Dovč, Vladimir Premru, Blaž Pečavar, Rafael Ponikvar
BACKGROUND: Acute kidney injury (AKI) occurs in 22.4 - 100% of critically-ill hospitalized patients with influenza infection. In up to 2/3, it is severe enough to necessitate renal replacement therapy. We aimed to document the incidence of AKI among patients with influenza-related critical illness and its relation to clinical outcomes. METHODS: We conducted a retrospective observational study of all adult patients with acute respiratory illness and laboratory-confirmed influenza infection admitted to non-surgical intensive care units at the University Medical Centre Ljubljana between January 1, 2016, and March 31, 2016...
July 2, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28647622/risk-factors-for-unsuccessful-acetabular-press-fit-fixation-at-primary-total-hip-arthroplasty
#19
U Brulc, V Antolič, B Mavčič
BACKGROUND: Surgeon at primary total hip arthroplasty sometimes cannot achieve sufficient cementless acetabular press-fit fixation and must resort to other fixation methods. Despite a predominant use of cementless cups, this issue is not fully clarified, therefore we performed a large retrospective study to: (1) identify risk factors related to patient or implant or surgeon for unsuccessful intraoperative press-fit; (2) check for correlation between surgeons' volume of operated cases and the press-fit success rate...
June 21, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28621381/the-methodology-applied-in-dpph-abts-and-folin-ciocalteau-assays-has-a-large-influence-on-the-determined-antioxidant-potential
#20
Helena Abramovič, Blaž Grobin, Nataša Poklar, Blaž Cigić
Antioxidant potential (AOP) is not only the property of the matrix analyzed but also depends greatly on the methodology used. The chromogenic radicals 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS•+), 2,2-diphenyl-1-picrylhydrazyl (DPPH•) and Folin-Ciocalteu (FC) assay were applied to estimate how the method and the composition of the assay solvent influence the AOP determined for coffee, tea, beer, apple juice and dietary supplements. Large differences between the AOP values depending on the reaction medium were observed, with the highest AOP determined mostly in the FC assay...
June 2017: Acta Chimica Slovenica
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