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Staphylococcus epidermidis

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https://www.readbyqxmd.com/read/29470360/oral-supplementation-with-bovine-colostrum-prevents-septic-shock-and-brain-barrier-disruption-during-bloodstream-infection-in-preterm-newborn-pigs
#1
Anders Brunse, Päivi Worsøe, Susanne Elisabeth Pors, Kerstin Skovgaard, Per Torp Sangild
Preterm infants have increased risk of neonatal sepsis, potentially inducing brain injury, and they may benefit from early initiation of enteral milk feeding. Using preterm pigs as models, we hypothesized that early provision of bovine colostrum to parentally nourished newborns protects against sepsis and neuroinflammation during bloodstream infection. Preterm newborn pigs were administered 10 CFU/kg of intra-arterial Staphylococcus epidermidis (SE, an opportunistic pathogen often causing sepsis in preterm infants), followed by administration of total parenteral nutrition (TPN, SE + TPN, n = 15) or oral provision of bovine colostrum with supplementary parenteral nutrition (SE + COL, n = 14), and compared with uninfected, TPN-nourished controls (CON + TPN, n = 11)...
February 21, 2018: Shock
https://www.readbyqxmd.com/read/29469610/comparative-analysis-between-biofilm-formation-and-gene-expression-in-staphylococcus-epidermidis-isolates
#2
Ana I Freitas, Nathalie Lopes, Fernando Oliveira, Susana Brás, Ângela França, Carlos Vasconcelos, Manuel Vilanova, Nuno Cerca
AIM: To understand the relationship between ica, aap and bhp gene expression and the implications in biofilm formation in selected clinical and commensal Staphylococcus epidermidis isolates. MATERIAL & METHODS: Isolates were analyzed regarding their biofilm-forming capacity, biochemical matrix composition, biofilm spatial organization and expression of biofilm-related genes. RESULTS: On polysaccharide intercellular adhesin-dependent biofilms, aap and bhp contributions for the biofilm growth were negligible, despite very high levels of expression...
February 22, 2018: Future Microbiology
https://www.readbyqxmd.com/read/29468052/prevalence-of-staphylococcus-spp-nasal-colonization-among-doctors-of-podiatric-medicine-and-associated-risk-factors-in-spain
#3
Sheila de Benito, Luis Alou, Ricardo Becerro-de-Bengoa-Vallejo, Marta Elena Losa-Iglesias, María Luisa Gómez-Lus, Luis Collado, David Sevillano
Background: This study aimed to estimate the prevalence of methicillin-susceptible and -resistant Staphylococcus aureus (MSSA and MRSA) and methicillin-resistant Staphylococcus epidermidis (MRSE) nasopharyngeal carriage among Doctors of Podiatric Medicine (Podiatrists) and to determine the potential risk factors. Methods: A cross-sectional study was carried out in 2016-2017 among 239 podiatrists in Spain. The presence of MSSA, MRSA, and MRSE was determined by microbiological analysis of nasal exudate and antimicrobial susceptibility was determined...
2018: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/29458065/nosocomial-ventriculitis-caused-by-a-meticillin-and-linezolid-resistant-clone-of-staphylococcus-epidermidis-in-neurosurgical-patients
#4
Carlos Rodríguez-Lucas, Javier Fernández, José Antonio Boga, Lucia López-Amor, Lorena Forcelledo, Eva Lázaro-López, M Rosario Rodicio
BACKGROUND: Post-neurosurgical ventriculitis is mainly caused by coagulase-negative staphylococci. The rate of linezolid resistant S. epidermidis (LRSE) is increasing worldwide. AIMS: To report clinical and microbiological data from a series of ventriculitis cases caused by LRSE in a Spanish hospital between 2013 and 2016. METHODS: LRSE ventriculitis cases were retrospectively reviewed in a Spanish hospital during a four-year period. Clinical/epidemiological data of the infected patients were reviewed, the isolates involved were typed by PFGE and MLST, and the molecular basis of linezolid resistance was determined...
February 16, 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29457614/poly-trimethylene-carbonate-and-poly-d-l-lactic-acid-modify-human-dendritic-cell-responses-to-staphylococci-but-do-not-affect-th1-and-th2-cell-development
#5
P P Balraadjsing, E C de Jong, D W Grijpma, M W Tanck, S A Zaat
Biomaterial-associated infections (BAIs) are frequent complications in the use of medical devices (biomaterials) correlated with considerable patient discomfort and high treatment costs. The presence of a biomaterial in the host causes derangement of local immune responses increasing susceptibility to infection. Dendritic cells (DCs) have an important role in directing the nature of immune responses by activating and controlling CD4+ T helper (Th) cell responses. To assess the immunomodulatory effect of the combined presence of biomaterials and Staphylococcus aureus (S...
February 19, 2018: European Cells & Materials
https://www.readbyqxmd.com/read/29452993/an-in-vitro-evaluation-of-the-efficacy-of-tedizolid-implications-for-the-treatment-of-skin-and-soft-tissue-infections
#6
Pierre Delpech, Muna ALeryan, Brian Jones, Curtis Gemmell, Sue Lang
Skin and soft tissue infections (SSTI) are among the most commonly occurring infections and evidence suggests that these are increasing world-wide. The aetiology is diverse, but Staphylococcus aureus predominate and these are often resistant to antimicrobials that were previously effective. Tedizolid is a new oxazolidinone-class antibacterial indicated for the treatment of adults with SSTI caused by Gram-positive pathogens, including S. aureus. The aim of this study was to evaluate the in vitro efficacy of tedizolid in comparison to other clinically used antibacterials against antibiotic sensitive- and resistant-staphylococci, grown in planktonic cultures and as biofilms reflecting the growth of the microorganism during episodes of SSTI...
January 10, 2018: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29450105/infection-versus-hematoma-following-surgical-treatment-of-proximal-femoral-fractures-in-geriatric-patients
#7
Franz Müller, Michael Galler, Christina Roll, Bernd Füchtmeier
Introduction: The surgical treatment of proximal femoral fractures predominantly involves geriatric patients and is associated with high morbidity and mortality. However, analyses on postoperative infections or hematoma are rare. Methods: Patients requiring surgical revision due to infection (n = 90) or hematoma (n = 77) in the postoperative phase were identified from an electronic database of 2000 consecutive patients surgically treated for proximal femoral fractures between 2006 and 2014...
2018: Geriatric Orthopaedic Surgery & Rehabilitation
https://www.readbyqxmd.com/read/29449095/relationships-between-bacteriospermia-dna-integrity-nuclear-protamine-alteration-sperm-quality-and-icsi-outcome
#8
Ali Zeyad, Mohammed Hamad, Houda Amor, Mohamad Eid Hammadeh
The Aim of this study was to evaluate the effects of bacteriospermia on human sperm parameters, nuclear protamines, DNA integrity and ICSI outcome in patients enrolled for ICSI treatment. 84 unselected couples consulting in infertility and obstetrics clinic and enrolled for ICSI treatment were included in this study. The semen specimens were screened bacteriologically; semen and sperm parameters were also evaluated according to WHO guidelines. DNA integrity, protamines concentration and protamine deficiency were estimated by TUNEL assay, AU-PAGE and Chromomycin (CMA3) respectively...
February 12, 2018: Reproductive Biology
https://www.readbyqxmd.com/read/29447471/anti-infection-silver-nanoparticle-immobilized-biomaterials-facilitated-by-argon-plasma-grafting-technology
#9
Ashwin Ambi, Nisharg Parikh, Carolina Vera, Krystal Burns, Naidel Montano, Leonard Sciorra, Jessica Epstein, Debing Zeng, Christian Traba
Many research groups have attained slow, persistent, continuous release of silver ions through careful experimental design using existing methods. Such methods effectively kill planktonic bacteria and therefore prevent surface adhesion of pathogens. However, the resultant modified coatings cannot provide long-term antibacterial efficacy due to sustained anti-microbial release. In this study, the anti-infection activity of AgNP immobilized biomaterials was evaluated, facilitated by argon plasma grafting technology and activated by bacterial colonization...
February 15, 2018: Biofouling
https://www.readbyqxmd.com/read/29447075/propionibacterium-acnes-has-low-susceptibility-to-chlorhexidine-digluconate
#10
Keisuke Nakase, Hanae Fukushima, Tomoko Yukawa, Hidemasa Nakaminami, Takeshi Fujii, Norihisa Noguchi
BACKGROUND: The skin bacterium Propionibacterium acnes has been reported to be responsible for surgical site infections (SSIs). Skin disinfection before surgery therefore is of the utmost importance in the prevention of SSIs caused by skin bacteria. METHODS: We assessed the susceptibility of clinical isolates of two skin bacteria, P. acnes and Staphylococcus epidermidis, to disinfectants. RESULTS: The range of chlorhexidine digluconate (CHG) minimum inhibitory concentrations (MICs) for P...
February 15, 2018: Surgical Infections
https://www.readbyqxmd.com/read/29446810/postoperative-endophtalmities-therapeuthic-results-and-early-vitrectomy
#11
Imen Zghal, Amine Souguir, Olfa Fekih, Amel Chebbi, Omar Romdhane, Hedi Bouguila, Leila Nacef
BACKGROUND: Postoperative endophthalmitis is a public health issue due to its bad prognosis; its treatment is both surgical and medical. Classically, surgical treatment was done if visual acuity is limited to light perception only. AIM: To evaluate therapeutic results Of postoperative endophtalmitieS and to Compare therapeutics almost used intravitreal injection of antibiotics versus early vitrectomy. METHODS: It's a retrospective comparative study includIng 120 cases of acute postoperative endophthalmitis hospitalized in a referral ophthalmology department between July 2007 and June 2013...
March 2017: La Tunisie Médicale
https://www.readbyqxmd.com/read/29444953/staphylococcal-osteomyelitis-disease-progression-treatment-challenges-and-future-directions
#12
REVIEW
Nicola Kavanagh, Emily J Ryan, Amro Widaa, Gillian Sexton, Jerome Fennell, Sadhbh O'Rourke, Kevin C Cahill, Cathal J Kearney, Fergal J O'Brien, Steven W Kerrigan
Osteomyelitis is an inflammatory bone disease that is caused by an infecting microorganism and leads to progressive bone destruction and loss. The most common causative species are the usually commensal staphylococci, with Staphylococcus aureus and Staphylococcus epidermidis responsible for the majority of cases. Staphylococcal infections are becoming an increasing global concern, partially due to the resistance mechanisms developed by staphylococci to evade the host immune system and antibiotic treatment. In addition to the ability of staphylococci to withstand treatment, surgical intervention in an effort to remove necrotic and infected bone further exacerbates patient impairment...
April 2018: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/29444755/preventing-infection-in-shoulder-surgery
#13
REVIEW
Jason J C Clark, Jeffrey T Abildgaard, Jeffrey Backes, Richard J Hawkins
Although rare, infection after shoulder surgery can represent a devastating complication. Infection can negatively affect clinical outcomes, and eradication often requires a protracted treatment course. Staphylococcus aureus, Staphylococcus epidermidis, and Propionibacterium acnes are among the most frequently isolated pathogens. Perioperative measures can be implemented to reduce infection risk. Here we review various perioperative practices and their efficacy at reducing infection after shoulder surgery.
February 12, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29443853/corr-insights%C3%A2-chlorhexidine-antiseptic-irrigation-eradicates-staphylococcus-epidermidis-from-biofilm-an-in-vitro-study
#14
Moby Parsons
No abstract text is available yet for this article.
March 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29443852/chlorhexidine-antiseptic-irrigation-eradicates-staphylococcus-epidermidis-from-biofilm-an-in-vitro-study
#15
Kenneth Schmidt, Chris Estes, Alex McLaren, Mark J Spangehl
BACKGROUND: Antiseptic and antibacterial solutions used for intraoperative irrigation are intended to kill bacteria and thereby decrease the incidence of surgical site infections. It is unknown if the concentrations and exposure times of irrigation solutions commonly used for prophylaxis in clean cases (povidone-iodine 0.35% for 3 minutes) are effective against bacteria in biofilm that are present in implant infections. Currently, povidone-iodine (0.35%), chlorhexidine (0.05%), sodium hypochlorite (0...
March 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29438544/emergence-and-control-of-linezolid-resistant-staphylococcus-epidermidis-in-an-icu-of-a-german-hospital
#16
Christina Weßels, Birgit Strommenger, Ingo Klare, Jennifer Bender, Sabine Messler, Frauke Mattner, Michael Krakau, Guido Werner, Franziska Layer
Objectives: To investigate an outbreak of linezolid-resistant Staphylococcus epidermidis (LRSE) in an interdisciplinary ICU, linezolid consumption and infection control measures taken. Methods: Routine surveillance of nosocomial infections revealed colonization and infection with LRSE affecting 14 patients during a 15 month period. LRSE isolates were analysed with respect to their clonal relatedness, antimicrobial susceptibility, the presence of cfr and/or mutations in the 23S rRNA, rplC, rplD and rplV genes...
February 9, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29432912/in-vitro-evaluation-of-new-2-phenoxy-benzo-g-1-2-4-triazolo-1-5-a-quinazoline-derivatives-as-antimicrobial-agents
#17
Hatem A Abuelizz, Rabab A El-Dib, Mohamed Marzouk, Rashad Al-Salahi
Previously, seventeen 2-phenoxy-benzo[g][1,2,4]triazolo[1,5-a]quinazoline derivatives were prepared and characterized by physicochemical and spectral means. This study was conducted to evaluate their activities in vitro against five Gram-negative and five Gram-positive of clinically pathogenic bacterial strains and ten fungal strains. The antimicrobial activity was assessed, and the minimum inhibitory concentration values of the tested compounds were determined in μg ml-1 , using the diffusion agar technique...
February 9, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29427999/dissemination-of-staphylococcus-epidermidis-st22-with-stable-high-level-resistance-to-linezolid-and-tedizolid-in-the-greek-turkish-region-2008-2016
#18
Ana R Freitas, Aziz R Dilek, Luísa Peixe, Carla Novais
No abstract text is available yet for this article.
February 12, 2018: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/29427715/two-i84-family-protease-inhibitors-from-chinese-razor-clams-sinonovacula-constricta-expressed-in-response-to-environmental-challenges
#19
Xiarong Wang, Qinggang Xue, Xiaowei Mao, Yinghui Dong, Chenhua Li, Zhihua Lin
Protease inhibitors play critical roles in numerous biological processes including host defense in all multicellular organisms. Eighty three evolutionary families of protease inhibitors are currently accommodated in the MEROPS database and the I84 family currently consists of 3 novel serine protease inhibitors from the eastern oyster Crassostrea virginica. In this study, we identified 2 new I84 family members from the Chinese razor clam Sinonovacula constricta, scSI-1 and scSI-2, using cDNA cloning and sequencing...
February 7, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29427709/synthesis-of-silver-nanoparticles-from-phenerochaete-chrysosporium-mtcc-787-and-their-antibacterial-activity-against-human-pathogenic-bacteria
#20
Muthupandian Saravanan, Selvaraj Arokiyaraj, Thangavelu Lakshmi, Arivalagan Pugazhendhi
The present study elucidates an eco-friendly method for synthesizing silver nanoparticles using Phenerochaete chrysosporium (MTCC-787), its bactericidal and cytotoxic effect were studied. The formation of nanoparticles was evidenced by color change and UV-Vis spectroscopy. Atomic Force Microscope and Transmission electron microscope, showed spherical and oval shapes particles in the sizes ranging between 34 and 90 nm. The biosynthesised silver nanoparticles showed significant antibacterial activity against Pseudomonas aeruginosa, Klebsiella pneumoniae, Staphylococcus aureus and Staphylococcus epidermidis at a high dose...
February 7, 2018: Microbial Pathogenesis
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