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https://www.readbyqxmd.com/read/28643814/-unresponsive-wakefulness-syndrome-clinical-predictors-of-late-recovery
#1
Gianfranco Lamberti, Elena Antoniono, Francesca Gozzerino, Donatella Giraudo
Patients affected by the outcomes of serious traumatic and/or non-traumatic brain injury may show progressive recovery characterized by a broad spectrum of clinical conditions, which are often not completely different, but of differing seriousness. The unresponsive wakefulness syndrome (UWS) and minimally conscious state (MCS) are syndromes that may characterize progression from the coma state and may be temporary clinical conditions, or in some cases, the final outcome of acute brain injury. The eventual recovery of consciousness is a dynamic process, in constant progress following the acute event...
May 2017: Recenti Progressi in Medicina
https://www.readbyqxmd.com/read/28643095/-local-antibiotic-therapy
#2
REVIEW
Klaus-Dieter Kühn, Nora Renz, Andrej Trampuz
The treatment of superficial wound infections with local antibiotics is considered to be problematic as it is accompanied by an increased risk of resistance development and ineffectiveness in deeper regions. On the contrary, the local application of antibiotics is useful in arthroplasty and necessary if implants are utilized. The reason for this is the prevention of a rapid biofilm formation on foreign implants and a resulting infection may remain undiscovered until it becomes chronic. Apart from exogenous material, necrotic tissue (e...
June 22, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28642945/nonribosomal-peptide-synthetase-biosynthetic-clusters-of-eskape-pathogens
#3
REVIEW
Andrew M Gulick
Covering: up to 2017.Natural products are important secondary metabolites produced by bacterial and fungal species that play important roles in cellular growth and signaling, nutrient acquisition, intra- and interspecies communication, and virulence. A subset of natural products is produced by nonribosomal peptide synthetases (NRPSs), a family of large, modular enzymes that function in an assembly line fashion. Because of the pharmaceutical activity of many NRPS products, much effort has gone into the exploration of their biosynthetic pathways and the diverse products they make...
June 23, 2017: Natural Product Reports
https://www.readbyqxmd.com/read/28642934/evaluation-of-the-antibacterial-and-antifungal-properties-of-phragmanthera-capitata-sprengel-balle-loranthaceae-a-mistletoe-growing-on-rubber-tree-using-the-dilution-techniques
#4
Franklin Uangbaoje Ohikhena, Olubunmi Abosede Wintola, Anthony Jide Afolayan
The alarming increase in multidrug resistance of pathogenic microorganisms to conventional drugs in recent years has prompted the search for new leads in alternative remedies in natural products. Hence, this study was aimed at evaluating the antimicrobial properties of Phragmanthera capitata, a parasitic mistletoe growing on rubber trees. The in vitro antimicrobial activities of the acetone, methanol, ethanol, and aqueous extracts were investigated using five gram-negative and five gram-positive bacteria and four fungi...
2017: TheScientificWorldJournal
https://www.readbyqxmd.com/read/28642751/in-vitro-antimicrobial-activity-of-chlorquinaldol-against-microorganisms-responsible-for-skin-and-soft-tissue-infections-comparative-evaluation-with-gentamicin-and-fusidic-acid
#5
Monica Bortolin, Alessandro Bidossi, Elena De Vecchi, Maura Avveniente, Lorenzo Drago
Skin and soft tissue infections (SSTIs) are a major therapeutic challenge for clinicians. The emergence of pathogens with decreased susceptibility to available therapies has become an emerging problem often associated with treatment failure. Hence, there is an urgent need for novel broad-spectrum antimicrobial agents. The purpose of this study was to assess the feasibility of chlorquinaldol as an alternative approach to currently used topical antibiotics for the treatment of skin and soft tissue infections...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28642142/epidemiology-and-outcomes-of-bloodstream-infections-in-177-severe-burn-patients-from-an-industrial-disaster-a-multicenter-retrospective-study
#6
Chenqi Tang, Junqiang Li, Beiming Shou, Bohan Pan, Tiansheng Chen, Yongqiang Xiao, Xiaopeng Zheng, Shichu Xiao, Qian Tan, Zhaofan Xia
OBJECTIVES: To determine the characteristics of bloodstream infections (BSIs) and to evaluate the impact of BSIs on mortality in severe burn patients. METHODS: A retrospective observational study was conducted in 20 tertiary hospitals. A total of 185 Patients who experienced a massive dust explosion in eastern China were included. RESULTS: After exclusion, 177 patients were analyzed. The median total body surface area (TBSA) burned was 95% (interquartile range [IQR], 85%-98%)...
June 19, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28641596/types-and-prevalence-of-extended-spectrum-beta-lactamase-producing-enterobacteriaceae-in-poultry
#7
Eva-Maria Saliu, Wilfried Vahjen, Jürgen Zentek
For several billion years, bacteria have developed mechanisms to resist antibacterial substances. In modern time, antibiotics are frequently used in veterinary and human medicine for prevention and treatment of diseases, globally still also for their growth promoting effects as feed additives. This complex situation has evolved in accelerating development and prevalence of multi-drug resistant bacteria in livestock and people. Extended-spectrum beta-lactamase (ESBL) producing bacteria are resistant to a wide range of ß-lactam antibiotics...
June 23, 2017: Animal Health Research Reviews
https://www.readbyqxmd.com/read/28641352/-do-general-surgeons-feel-adequately-prepared-for-the-complex-questions-associated-with-the-handling-of-multi-resistant-pathogens-results-of-the-mr2-survey
#8
Matthias May, Philipp J Spachmann, Steffen Lebentrau, Harald Schumacher, Christian Gilfrich, Hans-Martin Fritsche, Malte Vetterlein, Sabine Brookman-May, Martin Schostak, Florian M Wagenlehner, Maximilian Burger, Alexander Novotny, Robert Obermaier
Background At the present time, there is no evidence available as to the knowledge of general surgeons regarding multi-resistant pathogens (MRP) and the rational use of antibiotic medication (antibiotic stewardship/ABS) compared with physicians from other disciplines. Methods As part of the MR2 survey (Multiinstitutional Reconnaissance of practice with MultiResistant bacteria - a survey focussing on German hospitals), a questionnaire comprising 4 + 35 items was distributed to urologists, internists, gynaecologists and general surgeons in 18 hospitals...
June 2017: Zentralblatt Für Chirurgie
https://www.readbyqxmd.com/read/28638850/probiotic-lactobacillus-species-strengthen-intestinal-barrier-function-and-tight-junction-integrity-in-experimental-necrotizing-enterocolitis
#9
Brian P Blackwood, Carrie Y Yuan, Douglas R Wood, Joseph D Nicolas, Justyna S Grothaus, Catherine J Hunter
Necrotizing enterocolitis (NEC) is a serious intestinal disease that occurs in newborn infants. It is associated with major morbidity and affects 5% of all infants admitted to neonatal intensive care units. Probiotics have variable efficacy in preventing necrotizing enterocolitis. Tight junctions (TJ) are protein complexes that maintain epithelial barrier integrity. We hypothesized that the probiotics Lactobacillus rhamnosus and Lactobacillus plantarum strengthen intestinal barrier function, promote TJ integrity, and protect against experimental NEC...
April 2017: J Probiotics Health
https://www.readbyqxmd.com/read/28638805/increased-zinc-availability-enhances-initial-aggregation-and-biofilm-formation-of-streptococcus-pneumoniae
#10
Lindsey R Brown, Rachel C Caulkins, Tyler E Schartel, Jason W Rosch, Erin S Honsa, Stacey Schultz-Cherry, Victoria A Meliopoulos, Sean Cherry, Justin A Thornton
Bacteria growing within biofilms are protected from antibiotics and the immune system. Within these structures, horizontal transfer of genes encoding virulence factors, and promoting antibiotic resistance occurs, making biofilms an extremely important aspect of pneumococcal colonization and persistence. Identifying environmental cues that contribute to the formation of biofilms is critical to understanding pneumococcal colonization and infection. Iron has been shown to be essential for the formation of pneumococcal biofilms; however, the role of other physiologically important metals such as copper, zinc, and manganese has been largely neglected...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28638594/high-burden-of-antimicrobial-resistance-among-gram-negative-bacteria-causing-healthcare-associated-infections-in-a-critical-care-unit-of-nepal
#11
Narayan Prasad Parajuli, Subhash Prasad Acharya, Shyam Kumar Mishra, Keshab Parajuli, Basista Prasad Rijal, Bharat Mani Pokhrel
BACKGROUND: Healthcare associated infections (HCAI) and antimicrobial resistance are principal threats to the patients of intensive care units and are the major determining factors for patient outcome. They are associated with increased morbidity, mortality, excess hospitalization and financial costs. The present study is an attempt to investigate the spectrum and antimicrobial resistance of bacterial isolates involved in healthcare associated infections (HCAI) in the patients of a critical care unit at a tertiary care university hospital in Kathmandu, Nepal...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28638468/current-and-emerging-techniques-for-antibiotic-susceptibility-tests
#12
REVIEW
Karan Syal, Manni Mo, Hui Yu, Rafael Iriya, Wenwen Jing, Sui Guodong, Shaopeng Wang, Thomas E Grys, Shelley E Haydel, Nongjian Tao
Infectious diseases caused by bacterial pathogens are a worldwide burden. Serious bacterial infection-related complications, such as sepsis, affect over a million people every year with mortality rates ranging from 30% to 50%. Crucial clinical microbiology laboratory responsibilities associated with patient management and treatment include isolating and identifying the causative bacterium and performing antibiotic susceptibility tests (ASTs), which are labor-intensive, complex, imprecise, and slow (taking days, depending on the growth rate of the pathogen)...
2017: Theranostics
https://www.readbyqxmd.com/read/28638371/the-anticancer-peptide-tat-rasgap317-326-exerts-broad-antimicrobial-activity
#13
Mathieu Heulot, Nicolas Jacquier, Sébastien Aeby, Didier Le Roy, Thierry Roger, Evgeniya Trofimenko, David Barras, Gilbert Greub, Christian Widmann
Antibiotic resistance has become a major health issue. Nosocomial infections and the prevalence of resistant pathogenic bacterial strains are rising steadily. Therefore, there is an urgent need to develop new classes of antibiotics effective on multi-resistant nosocomial pathogenic bacteria. We have previously shown that a cell-permeable peptide derived from the p120 Ras GTPase-activating protein (RasGAP), called TAT-RasGAP317-326, induces cancer cell death, inhibits metastatic progression, and sensitizes tumor cells to various anti-cancer treatments in vitro and in vivo...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28637861/epidemic-and-endemic-pathogen-dynamics-correspond-to-distinct-host-population-microbiomes-at-a-landscape-scale
#14
Andrea J Jani, Roland A Knapp, Cheryl J Briggs
Infectious diseases have serious impacts on human and wildlife populations, but the effects of a disease can vary, even among individuals or populations of the same host species. Identifying the reasons for this variation is key to understanding disease dynamics and mitigating infectious disease impacts, but disentangling cause and correlation during natural outbreaks is extremely challenging. This study aims to understand associations between symbiotic bacterial communities and an infectious disease, and examines multiple host populations before or after pathogen invasion to infer likely causal links...
June 28, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28637338/complex-interactions-between-potentially-pathogenic-opportunistic-and-resident-bacteria-emerge-during-infection-on-a-reef-building-coral
#15
Sarah A Gignoux-Wolfsohn, Felicia M Aronson, Steven V Vollmer
Increased bacterial diversity on diseased corals can obscure disease etiology and complicate our understanding of pathogenesis. To untangle microbes that may cause white band disease signs from microbes responding to disease, we inoculated healthy Acropora cervicornis corals with an infectious dose from visibly diseased corals. We sampled these dosed corals and healthy controls over time for sequencing of the bacterial 16S region. Endozoicomonas were associated with healthy fragments from 4/10 colonies, dominating microbiomes before dosing and decreasing over time only in corals that displayed disease signs, suggesting a role in disease resistance...
June 15, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28637307/sparing-carbapenem-usage
#16
A Peter R Wilson
Background: Carbapenem resistance in Gram-negative bacteria is increasing in many countries and use of carbapenems and antibiotics to which resistance is linked should be reduced to slow its emergence. There are no directly equivalent antibiotics and the alternatives are less well supported by clinical trials. The few new agents are expensive. Objectives: To provide guidance on strategies to reduce carbapenem usage. Methods: A literature review was performed as described in the BSAC/HIS/BIA/IPS Joint Working Party on Multiresistant Gram-negative Infection Report...
June 15, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28636355/semisynthetic-flavone-derived-antimicrobials-with-therapeutic-potential-against-methicillin-resistant-staphylococcus-aureus-mrsa
#17
Shuimu Lin, Jun-Jie Koh, Thet Tun Aung, Wan Ling Wendy Sin, Fanghui Lim, Lin Wang, Rajamani Lakshminarayanan, Lei Zhou, Donald T H Tan, Derong Cao, Roger W Beuerman, Li Ren, Shouping Liu
A new series of semisynthetic flavone-based small molecules mimicking antimicrobial peptides has been designed from natural icaritin to combat drug-resistant Gram-positive bacterial infections. Compound 6 containing two arginine residues exhibited excellent antibacterial activity against Gram-positive bacteria, including MRSA, and very low toxicity to mammalian cells, resulting in a high selectivity of more than 511, comparable to that of several membrane-active antibiotics in clinical trials. Our data show for the first time that icaritin derivatives effectively kill bacteria...
June 21, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28634713/characterization-and-in-vitro-antibacterial-activity-of-saponin-conjugated-silver-nanoparticles-against-bacteria-that-cause-burn-wound-infection
#18
Anbarasan Muniyan, Kalaiselvi Ravi, Udayamathi Mohan, Rajasekar Panchamoorthy
Saponins are glycosides, which destabilize the membrane by altering the membrane permeability. Thus, the present study was aimed to fabricate the silver nanoparticles (AgNPs) using fenugreek derived saponin (SN) against multi-drug resistant bacteria. This study has optimized the concentration of SN (240 mg/mL) for the synthesis of an effective AgNPs against the test organism Escherichia coli. The SN reduced AgNPs produced a reddish-brown colour and displayed UV absorption at 416 nm. The bio-reducing efficiency of SN (62...
July 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28634572/a-helicobacter-pylori-homolog-of-eukaryotic-flotillin-is-involved-in-cholesterol-accumulation-epithelial-cell-responses-and-host-colonization
#19
Melanie L Hutton, Kimberley D'Costa, Amanda E Rossiter, Lin Wang, Lorinda Turner, David L Steer, Seth L Masters, Ben A Croker, Maria Kaparakis-Liaskos, Richard L Ferrero
The human pathogen Helicobacter pylori acquires cholesterol from membrane raft domains in eukaryotic cells, commonly known as "lipid rafts." Incorporation of this cholesterol into the H. pylori cell membrane allows the bacterium to avoid clearance by the host immune system and to resist the effects of antibiotics and antimicrobial peptides. The presence of cholesterol in H. pylori bacteria suggested that this pathogen may have cholesterol-enriched domains within its membrane. Consistent with this suggestion, we identified a hypothetical H...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28634536/telavancin-a-novel-semisynthetic-lipoglycopeptide-agent-to-counter-the-challenge-of-resistant-gram-positive-pathogens
#20
REVIEW
Biswadeep Das, Chayna Sarkar, Debasmita Das, Amit Gupta, Arnav Kalra, Shubham Sahni
Telavancin (TD-6424), a semisynthetic lipoglycopeptide vancomycin-derivative, is a novel antimicrobial agent developed by Theravance for overcoming resistant Gram-positive bacterial infections, specifically methicillin-resistant Staphylococcus aureus (MRSA). The US Food and Drug Administration (USFDA) had approved telavancin in 2009 for the treatment of complicated skin and skin structure infections (cSSSIs) caused by Gram-positive bacteria, including MRSA (S. aureus, Streptococcus agalactiae, Streptococcus pyogenes, Streptococcus anginosus group, or Enterococcus faecalis)...
March 2017: Therapeutic Advances in Infectious Disease
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