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Vancomycin Antibiotic

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https://www.readbyqxmd.com/read/29458157/clostridium-innocuum-is-a-vancomycin-resistant-pathogen-that-may-cause-antibiotic-associated-diarrhea
#1
Ju-Hsin Chia, Ting-Shu Wu, Tsu-Lan Wu, Chyi-Liang Chen, Chih-Hsien Chuang, Lin-Hui Su, Hong-Jyun Chang, Chia-Chen Lu, An-Jing Kuo, Hsin-Chih Lai, Cheng-Hsun Chiu
OBJECTIVES: Clostridium innocuum can cause extra-intestinal infection in patients with underlying diseases. The role of C. innocuum in antibiotic-associated diarrhea (AAD) remains unknown. METHODS: Clinical information of 103 patients in which C. innocuum was isolated from was reviewed. We carried out cellular and animal experiments to examine the pathogenic potential of C. innocuum in AAD. RESULTS: Eighty-eight percent (91/103) of the 103 patients received antibiotics within 2 weeks of diarrhea onset...
February 16, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29456789/novel-modifications-of-glycopeptide-antibiotics-via-total-synthesis
#2
EDITORIAL
David J Newman
Although vancomycin has been in clinical use since the late 1950s, resistance due to alteration in the target microbe's peptidoglycan can vary significantly, reducing its activity. Total synthesis of derivatives has now led to a molecule with very significant activity against resistant strains.
February 8, 2018: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29454983/old-and-new-glycopeptide-antibiotics-from-product-to-gene-and-back-in-the-post-genomic-era
#3
REVIEW
Giorgia Letizia Marcone, Elisa Binda, Francesca Berini, Flavia Marinelli
Glycopeptide antibiotics are drugs of last resort for treating severe infections caused by multi-drug resistant Gram-positive pathogens. First-generation glycopeptides (vancomycin and teicoplanin) are produced by soil-dwelling actinomycetes. Second-generation glycopeptides (dalbavancin, oritavancin, and telavancin) are semi-synthetic derivatives of the progenitor natural products. Herein, we cover past and present biotechnological approaches for searching for and producing old and new glycopeptide antibiotics...
February 15, 2018: Biotechnology Advances
https://www.readbyqxmd.com/read/29454592/effective-antimicrobial-stewardship-strategies-for-cost-effective-utilization-of-telavancin-for-the-treatment-of-patients-with-hospital-acquired-bacterial-pneumonia-caused-by-staphylococcus-aureus
#4
James A McKinnell, Shelby Corman, Dipen Patel, Grace H Leung, Lynne M Gordon, Thomas P Lodise
PURPOSE: Clinicians and stewardship programs are challenged with positioning of novel, higher priced antibiotic agents for the treatment of clinical infections. We developed a decision-analytic model to describe costs, including drug, total treatment costs, and health care outcomes, associated with telavancin (TLV) compared with vancomycin (VAN) for patients with Staphylococcus aureus (SA) hospital-acquired bacterial pneumonia (HABP). METHODS: This decision-analytic model assessed the treatment of SA-HABP with TLV versus VAN...
February 14, 2018: Clinical Therapeutics
https://www.readbyqxmd.com/read/29454049/emergence-of-vancomycin-intermediate-and-resistant-staphylococcus-aureus-among-methicillin-resistant-s-aureus-isolated-from-clinical-specimens-in-the-northwest-of-iran
#5
Maryam Ghahremani, Nima Hosseini Jazani, Yaeghob Sharifi
OBJECTIVES: This study aimed to evaluate the frequency, the, phenotypic and molecular characteristics of methicillin- resistant, Staphylococcus aureus (MRSA) and vancomycin-resistant S. aureus (VRSA), from clinical specimens at three university teaching hospitals in Urmia-North West of Iran (2012- 2015). METHODS: After identification of the isolates, the antibiotic, susceptibility, the presence of mecA, vanA, pvl genes and staphylococcal, cassette chromosome mec (SCCmec) typing were evaluated...
February 14, 2018: Journal of Global Antimicrobial Resistance
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/29451938/the-management-of-cerebrospinal-fluid-leak-after-anterior-cervical-decompression-surgery
#7
Jiliang Zhai, Ripul R Panchal, Ye Tian, Shujie Wang, Lijuan Zhao
Cerebrospinal fluid (CSF) leak is a rare but potentially troublesome and occasionally catastrophic complication after anterior cervical decompression surgery. There is limited literature describing this complication, and the management of CSF leak varies. The aim of this study was to retrospectively review the treatment of cases with CSF leak and develop a management algorithm. A series of 14 patients with CSF leak from January 2011 to May 2016 were included in this study. Their characteristics, management of CSF leak, and outcomes were documented...
February 16, 2018: Orthopedics
https://www.readbyqxmd.com/read/29449171/changes-in-antimicrobial-susceptibility-of-commonly-clinically-significant-isolates-before-and-after-the-interventions-on-surgical-prophylactic-antibiotics-spas-in-shanghai
#8
Su Wang, Li-Zhong Han, Yu-Xing Ni, Yi-Bo Zhang, Qun Wang, Da-Ke Shi, Wen-Hui Li, Yi-Chen Wang, Chen-Rong Mi
Surveillances and interventions on antibiotics use have been suggested to improve serious drug-resistance worldwide. Since 2007, our hospital have proposed many measures for regulating surgical prophylactic antibiotics (carbapenems, third gen. cephalosporins, vancomycin, etc.) prescribing practices, like formulary restriction or replacement for surgical prophylactic antibiotics and timely feedback. To assess the impacts on drug-resistance after interventions, we enrolled infected patients in 2006 (pre-intervention period) and 2014 (post-intervention period) in a tertiary hospital in Shanghai...
February 12, 2018: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29445637/virulence-determinants-and-antimicrobial-resistance-patterns-of-vancomycin-resistant-enterococcus-faecium-isolated-from-different-sources-in-southwest-iran
#9
Maniya Arshadi, Mahmood Mahmoudi, Moloud Sadat Motahar, Saber Soltani, Mohammad Reza Pourmand
Background: This study aimed to investigate the incidence of antibiotic-resistance and virulence genes in vancomycin-resistant Enterococcus faecium isolated from different sources in southwest Iran from Mar to Sep 2015. Methods: Overall, 120 E. faecium isolates (80 VRE and 40 vancomycin-susceptible enterococci [VSE] isolates) were obtained from four hospitals. The resistance of the VRE isolates was determined by disk diffusion method. Multiplex PCR was performed to detect the virulence genes carried by the E...
February 2018: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/29444303/the-utility-of-vancomycin-powder-in-reducing-surgical-site-infections-in-deep-brain-stimulation-surgery
#10
Ryan B Kochanski, Pouya Nazari, Sepehr Sani
BACKGROUND: The impact of vancomycin powder on reducing postoperative surgical site infections (SSIs) in spine surgery has been studied extensively and is considered standard of care at many institutions. More recently, vancomycin powder has been shown to reduce SSI in cranial neurosurgery; however, limited studies have been performed assessing its impact in reducing SSIs in deep brain stimulation (DBS) surgery. OBJECTIVE: To investigate the use of vancomycin powder as an adjunct to the current antibiotic prophylaxis regimen in DBS surgery in a large cohort of patients...
February 10, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29443752/the-first-case-report-of-enterococcus-gallinarum-meningitis-in-neonate-a-literature-review
#11
Xiaoquan Li, Shujuan Fan, Xiaojie Lin, Li Liu, Jie Zheng, Xihui Zhou, Axel Heep
RATIONALE: Enterococcus gallinarum meningitis (EGM) is rarely found in normal adults and even rarer in children. To our knowledge, EGM in neonate has not been reported previously. PATIENTS CONCERNS: Here we reported the first case of EGM in neonate. Prolonged fever was the only manifestation for the case after admission. DIAGNOSES: Cerebrospinal fluid cultures showed that the isolate was Enterococcus gallinarum and sensitive to linezolid. INTERVENTIONS: Ceftriaxone, beta lactam type, and vancomycin were used respectively, but not effective...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29442542/comparison-of-the-nephrotoxicity-of-vancomycin-in-combination-with-cefepime-meropenem-or-piperacillin-tazobactam-a-prospective-multicenter-study
#12
Brandon P Mullins, C Joseph Kramer, Billie J Bartel, Jennifer S Catlin, Richard E Gilder
BACKGROUND: Patients often receive broad-spectrum antibiotics for nosocomial infections commonly with activity against Pseudomonas aeruginosa and methicillin-resistant Staphylococcus aureus. Previous retrospective and/or single-center studies have suggested that the combination of vancomycin and piperacillin/tazobactam might be associated with an increased risk of acute kidney injury. OBJECTIVES: To compare the incidence of nephrotoxicity in patients receiving intravenous vancomycin in combination with cefepime, meropenem, or piperacillin/tazobactam...
February 1, 2018: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/29438718/safety-potential-biotechnological-and-probiotic-properties-of-bacteriocinogenic-enterococcus-lactis-strains-isolated-from-raw-shrimps
#13
Olfa Ben Braïek, Stefano Morandi, Paola Cremonesi, Slim Smaoui, Khaled Hani, Taoufik Ghrairi
The aims of this study are to isolate new bacteriocinogenic lactic acid bacterial strains from white (Penaeus vannamei) and pink (Palaemon serratus) raw shrimps and evaluate their technological and probiotic potentialities. Seven strains were selected, among fifty active isolates, as producing interesting antimicrobial activity. Identified as Enterococcus lactis, these isolates were able to produce enterocins A, B and/or P. The safety aspect, assessed by microbiological and molecular tests, demonstrated that the strains were susceptible to relevant antibiotics such as vancomycin, negative for haemolysin and gelatinase activities, and did not harbour virulence and antibiotic resistance genes...
February 10, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29432868/repurposing-niclosamide-for-intestinal-decolonization-of-vancomycin-resistant-enterococci
#14
Haroon Mohammad, Ahmed AbdelKhalek, Nader S Abutaleb, Mohamed N Seleem
Enterococci are commensal microorganisms present in the gastrointestinal (GI) tract of humans. Though normally innocuous to the host, strains of Enterococcus exhibiting resistance to vancomycin (VRE) have been associated with high rates of infection and mortality in immunocompromised patients. Decolonization of VRE represents a key strategy to curb infection in highly-susceptible patients. However, there is a dearth of decolonizing agents available clinically that are effective against VRE. The present study confirms that niclosamide, an anthelmintic drug, has potent antibacterial activity against clinical isolates of vancomycin-resistant E...
February 9, 2018: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29431734/disruption-of-staphylococcal-aggregation-protects-against-lethal-lung-injury
#15
Jaime L Hook, Mohammad N Islam, Dane Parker, Alice S Prince, Sunita Bhattacharya, Jahar Bhattacharya
Infection by Staphylococcus aureus strain USA300 causes tissue injury, multiorgan failure, and high mortality. However, the mechanisms by which the bacteria adhere to, then stabilize on, mucosal surfaces before causing injury remain unclear. We addressed these issues through the first real-time determinations of USA300-alveolar interactions in live lungs. We found that within minutes, inhaled USA300 established stable, self-associated microaggregates in niches at curved, but not at flat, regions of the alveolar wall...
February 12, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29429295/-etiological-and-drug-sensitivity-analysis-of-lacrimal-canaliculitis
#16
Y Zhang, S J Deng, Z Q Wang, J W Ding, X G Sun
Objective: To analyze the etiology and drug sensitivity of lacrimal canaliculitis. Methods: Retrospective study of case series. The general information, culture results and drug sensitivity results of 52 patients (including 10 males and 42 females with an average age of 60.3 years) clinically diagnosed with lacrimal canaliculitis during 2011 and 2016 at Beijing Tongren Hospital of Capital Medical University have been analyzed. The enumeration data have been tested with Chi-square method. Results: The positive rate of bacterial culture was 78...
February 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29427091/current-clinical-and-bacteriological-profile-of-septic-arthritis-in-young-infants-a-prospective-study-from-a-tertiary-referral-centre
#17
Gireesh Sankaran, Balaji Zacharia, Antony Roy, Sulaikha Puthan Purayil
PURPOSE: The study was carried out to evaluate the clinical and bacteriological profile of SA in young infants (age ≤ 3 months) in a tertiary referral centre and to assess the risk factors and to document the changing trends in the epidemiology. METHODS: This was a prospective descriptive study on all young infants with SA. Clinical and perinatal history, examination, radiological and laboratory findings (blood count, ESR, CRP, blood and joint cultures) were studied...
February 9, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29423995/gold-nanoclusters-for-targeting-mrsa-in-vivo
#18
Yangzhouyun Xie, Yong Liu, Junchuan Yang, Yuan Liu, Fupin Hu, Kui Zhu, Xingyu Jiang
Widespread multidrug resistance caused by the abuse of antibiotics calls for novel strategies and materials. Gold nanoclusters (AuNCs) are scarcely explored for combating multidrug resistant (MDR) bacteria in vivo. We herein synthesize a novel class of AuNCs, namely quaternary ammonia (QA)-capped AuNCs (QA-AuNCs), as potent antibiotics selectively targeting MDR Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE) in vivo. QA-AuNCs kill bacteria via a combined physicochemical mechanism, and show excellent therapeutic effect on both the skin infection model and the bacteremia model induced by MRSA...
February 8, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29423421/an-updated-review-of-iclaprim-a-potent-and-rapidly-bactericidal-antibiotic-for-the-treatment-of-skin-and-skin-structure-infections-and-nosocomial-pneumonia-caused-by-gram-positive-including-multidrug-resistant-bacteria
#19
REVIEW
David B Huang, Catherine D Strader, James S MacDonald, Mark VanArendonk, Richard Peck, Thomas Holland
New antibiotics are needed because of the increased morbidity and mortality associated with multidrug-resistant bacteria. Iclaprim, a bacterial dihydrofolate reductase inhibitor, not currently approved, is being studied for the treatment of skin infections and nosocomial pneumonia caused by Gram-positve bacteria, including multidrug-resistant bacteria. Iclaprim showed noninferiority at -10% to linezolid in 1 of 2 phase 3 studies for the treatment of complicated skin and skin structure infections with a weight-based dose (0...
February 2018: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29423190/antibiotic-use-in-a-tertiary-healthcare-facility-in-ghana-a-point-prevalence-survey
#20
Appiah-Korang Labi, Noah Obeng-Nkrumah, Edmund Tetteh Nartey, Stephanie Bjerrum, Nii Armah Adu-Aryee, Yaw Adjei Ofori-Adjei, Alfred E Yawson, Mercy J Newman
Background: The global rise and spread of antibiotic resistance is limiting the usefulness of antibiotics in the prevention and treatment of infectious diseases. The use of antibiotic stewardship programs guided by local data on prescribing practices is a useful strategy to control and reduce antibiotic resistance. Our objective in this study was to determine the prevalence and indications for use of antibiotics at the Korle-Bu Teaching Hospital Accra, Ghana. Methods: An antibiotic point prevalence survey was conducted among inpatients of the Korle-Bu Teaching Hospital between February and March 2016...
2018: Antimicrobial Resistance and Infection Control
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