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Daptomycin

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https://www.readbyqxmd.com/read/28634536/telavancin-a-novel-semisynthetic-lipoglycopeptide-agent-to-counter-the-challenge-of-resistant-gram-positive-pathogens
#1
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
https://www.readbyqxmd.com/read/28634535/effectiveness-and-safety-of-daptomycin-in-patients-with-infective-endocarditis-undergoing-heart-valve-replacement-a-subgroup-analysis-from-real-world-data
#2
Achyut Guleri, Riccardo Utili, Pascal Dohmen, Kamal Hamed
BACKGROUND: European Cubicin(®) Outcomes Registry and Experience (EU-CORE) was a retrospective, non-interventional, multicenter registry that collected real-world clinical outcomes following daptomycin use for the treatment of Gram-positive infections. EU-CORE data from patients with infective endocarditis (IE) who underwent heart valve replacement were analysed. METHODS: Clinical outcomes were assessed as success (cured or improved), failure, or non-evaluable...
March 2017: Therapeutic Advances in Infectious Disease
https://www.readbyqxmd.com/read/28626538/septic-thrombophlebitis-with-persistent-methicillin-resistant-staphylococcus-aureus-bacteremia-and-de-novo-resistance-to-vancomycin-and-daptomycin
#3
Yael Koton, Zafrir Or, Naiel Bisharat
Persistent methicillin-resistant Staphylococcus aureus (MRSA) bacteremia is associated with significant risk of mortality, especially when it occurs while on appropriate antimicrobial therapy. We herein describe an unusual case of a patient with prosthetic aortic tissue valve, who suffered from central venous catheter related MRSA bacteremia with septic thrombus formation in the superior vena cava. MRSA bacteremia persisted despite removal of the catheter and appropriate antimicrobial therapy including vancomycin, rifampin, and daptomycin...
May 31, 2017: Infectious Disease Reports
https://www.readbyqxmd.com/read/28621039/wbla-a-pleiotropic-regulatory-gene-modulating-morphogenesis-and-daptomycin-production-in-streptomyces-roseosporus
#4
Xingwei Huang, Tingmei Ma, Jun Tian, Lan Shen, Hua Zuo, Changhua Hu, Guojian Liao
AIMS: The wblA gene, encoding a homolog of the WhiB family protein, was identified in the sequenced genome of daptomycin producer S.roseosporus. To explore the function of wblA, we construct wblA disruption strains, complemented strains and overexpression strains to test whether it can affect the production of secondary metabolites and morphogenesis. METHODS AND RESULTS: We constructed disruption strains by homologous recombination in S.roseosporus. The disruption mutant of wblA could block aerial mycelium sporulation and enhance the production of daptomycin by 51%...
June 16, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28602211/high-dose-daptomycin-together-with-rifampin-as-salvage-therapy-for-prosthetic-joint-infections
#5
Sabina Herrera, Luisa Sorlí, Juan Pablo Horcajada
No abstract text is available yet for this article.
June 8, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28600216/molecular-epidemiology-and-antibiotic-resistance-of-methicillin-resistant-staphylococcus-aureus-circulating-in-the-russian-federation
#6
Vladimir Gostev, Alexander Kruglov, Olga Kalinogorskaya, Olga Dmitrenko, Olga Khokhlova, Tatsuo Yamamoto, Yuri Lobzin, Irina Ryabchenko, Sergey Sidorenko
The aim of this study was to investigate the patterns of antimicrobial resistance and molecular features of methicillin-resistant Staphylococcus aureus (MRSA) isolates in Russia. Isolates recovered from hospital patients (n=480), healthy medical personnel (n=25), and healthy carriers (n=13) were included in the study. Hospital-acquired MRSA (HA-MRSA) demonstrated high resistance to ciprofloxacin, gentamicin, and chloramphenicol (76%-92%), moderate - to tetracycline, erythromycin, clindamycin, and rifampicin (38%-54%), and low - to fusidic acid, co-trimoxazole, mupirocin, and daptomycin (2%-7%)...
June 7, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28595200/-daptomycin-in-left-sided-endocarditis-a-single-center-experience
#7
Burak Açar, Yasemin Tezer Tekçe, Çağrı Yayla, Sefa Ünal, Ahmet Göktuğ Ertem, Bihter Şentürk, Özlem Özcan Çelebi, Sinan Aydoğdu
OBJECTIVE: Infective endocarditis (IE) carries a high risk of cardiac morbidity and mortality, despite advances in the contemporary armamentarium. Along with the development of antibiotic resistant strains, research focusing on the efficacy of novel agents other than standard antibiotic regimens continues. Daptomycin, one of these antibiotics, is approved for the treatment of Staphylococcus bacteremia and right-sided endocarditis. This retrospective study was an investigation of the effectiveness of daptomycin in patients with left-sided IE...
June 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28595198/-daptomycin-for-the-treatment-of-infective-endocarditis-when-do-we-use-it
#8
EDITORIAL
Serap Yavuz
No abstract text is available yet for this article.
June 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28585797/outpatient-parenteral-antimicrobial-therapy-for-infective-endocarditis-in-patients-over-80-years
#9
X Kortajarena, M A Goenaga, M Ibarguren, H Azkune, M J Bustinduy, A Fuertes, O Ibarguren, M Goyeneche, M Garcia
OBJECTIVE: The incidence of infective endocarditis is progressively increasing, especially in elderly patients. Outpatient parenteral antibiotic therapy (OPAT) is being an excellent alternative for treatment, but advanced age is one of the relative contraindications. The aim of this study is to compare the characteristics and prognosis of patients less or more than 80 years, treated with OPAT. METHODS: One hundred and ninety four patients were included between 1996 and 2015, 31 of them older than 80 years...
June 6, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28575511/population-pharmacokinetics-and-dosing-considerations-for-the-use-of-daptomycin-in-adult-patients-with-haematological-malignancies
#10
Pier Giorgio Cojutti, Anna Candoni, Virginia Ramos-Martin, Davide Lazzarotto, Maria Elena Zannier, Renato Fanin, William Hope, Federico Pea
Objectives: To assess the population pharmacokinetics (popPK) of daptomycin at the conventional dose of 6 mg/kg/day in a cohort of oncohaematological patients. Methods: Patients underwent serial blood sampling on day 3 of therapy (before dosing and at 0, 0.5, 1, 2, 3, 5, 7, 9 and 12 h after dosing) to assess the pharmacokinetic profile of daptomycin. PopPK and Monte Carlo simulation were performed to define the probability of target attainment (PTA) with 6, 8, 10 and 12 mg/kg/day of the pharmacokinetic/pharmacodynamic target of AUC 24 /MIC >1081...
June 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28559263/efficient-killing-of-planktonic-and-biofilm-embedded-coagulase-negative-staphylococci-by-bactericidal-protein-p128
#11
Nethravathi Poonacha, Sandhya Nair, Srividya Desai, Darshan Tuppad, Deepika Hiremath, Thulasi Mohan, Aradhana Vipra, Umender Sharma
Coagulase negative staphylococci (CoNS) are the major causative agents of foreign body-related infections including catheters-related blood stream infections. Because of involvement of biofilms, the foreign body-related infections are difficult to treat. P128, a chimeric recombinant phage-derived ectolysin has been shown to possess bactericidal activity on strains of S. aureus including MRSA. We have now tested the killing potential of P128 on three clinically significant species of CoNS, S. epidermidis, S...
May 30, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28542602/antimicrobial-resistance-status-of-enterococcus-from-australian-cattle-populations-at-slaughter
#12
Robert S Barlow, Kate E McMillan, Lesley L Duffy, Narelle Fegan, David Jordan, Glen E Mellor
Antimicrobial agents are used in cattle production systems for the prevention and control of bacterial associated diseases. A consequence of their use is the potential development of antimicrobial resistance (AMR). Enterococcus faecium and Enterococcus faecalis that are resistant to antimicrobials are of increased concern to public health officials throughout the world as they may compromise the ability of various treatment regimens to control disease and infection in human medicine. Australia is a major exporter of beef; however it does not have an ongoing surveillance system for AMR in cattle or foods derived from these animals...
2017: PloS One
https://www.readbyqxmd.com/read/28540151/methicillin-resistant-staphylococcus-aureus-sacroiliac-joint-septic-arthritis-in-an-adult-patient-treated-with-daptomycin
#13
Ramy Rashed, Fizan Younis
Sacroiliac joint septic arthritis is a rare disease entity representing 1-2% of all cases of septic arthritis. Establishment of the diagnosis is often challenging given the non-specific presenting features and the potential cross-over with other pathologies. We report the case of a 50 year old gentleman who suffers with psoriasis and presented with sacroiliac joint septic arthritis complicated by Methicillin Resistant Staphylococcus Aureus (MRSA) bacteraemia and an iliopsoas abscess. This was successfully treated conservatively with a course of the novel antibiotic Daptomycin...
2017: Journal of bone and joint infection
https://www.readbyqxmd.com/read/28534905/antimicrobial-peptide-inspired-nh125-analogues-bacterial-and-fungal-biofilm-eradicating-agents-and-rapid-killers-of-mrsa-persisters
#14
Akash Basak, Yasmeen Abouelhassan, Ran Zuo, Hussain Yousaf, Yousong Ding, Robert W Huigens
During microbial infection, antimicrobial peptides are utilized by the immune response to rapidly eradicate microbial pathogens through the destruction of cellular membranes. Inspired by antimicrobial peptides, quaternary ammonium cationic (QAC) compounds have emerged as agents capable of destroying bacterial membranes leading to rapid bacterial death, including the eradication of persistent, surface-attached bacterial biofilms. NH125, an imidazolium cation with a sixteen membered fatty tail, was recently reported to eradicate persister cells and was our starting point for the development of novel antimicrobial agents...
May 23, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28500123/enterococcus-casseliflavus-septicaemia-associated-with-hepatobiliary-infection-in-a-75-year-old-man
#15
Rajanshu Verma, Allison L Baroco
Enterococcus casseliflavus is a rare non-faecium, non-faecalis, vancomycin-resistant enterococcus (VRE) that is responsible for up to 2% of all enterococcal infections. Septicaemia with this bacterium is usually seen in older patients with multiple comorbidities who have had several previous hospitalisations. Septicaemia with E. casseliflavus portends a poorer prognosis, and treatment usually involves administration of antienterococcal beta-lactams or anti-VRE medications such as linezolid or daptomycin. We present such a case of a 75-year-old man who developed E...
May 12, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28489611/fdg-pet-ct-in-aortic-valve-bioprosthesis-infection
#16
Lucia Rampin, Alice Ferretti, Maria Cristina Marzola, Lolita Sasset, Sotirios Chondrogiannis, Anna Maria Cattelan, Domenico Rubello, Patrick M Colletti
A 62-year-old man presented with persistent fever, weakness, and retrosternal pain 3 years after aortic valve bioprosthesis (AVR). His white blood cell count was 11,000/μL and C-reactive protein was 13.6 mg/dL. Consecutive blood cultures isolated Staphylococcus epidermidis and capitis. Transesophageal echocardiography demonstrated small aortic valve prosthesis vegetation. F-FDG PET/CT revealed prominent AVR activity, SUVmax = 12.2. He was treated with daptomycin, meropenem, and gentamicin for 1 month and followed by daptomycin and carbapenem for 3 months...
July 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28487427/structural-basis-for-linezolid-binding-site-rearrangement-in-the-staphylococcus-aureus-ribosome
#17
Matthew J Belousoff, Zohar Eyal, Mazdak Radjainia, Tofayel Ahmed, Rebecca S Bamert, Donna Matzov, Anat Bashan, Ella Zimmerman, Satabdi Mishra, David Cameron, Hans Elmlund, Anton Y Peleg, Shashi Bhushan, Trevor Lithgow, Ada Yonath
An unorthodox, surprising mechanism of resistance to the antibiotic linezolid was revealed by cryo-electron microscopy (cryo-EM) in the 70S ribosomes from a clinical isolate of Staphylococcus aureus This high-resolution structural information demonstrated that a single amino acid deletion in ribosomal protein uL3 confers linezolid resistance despite being located 24 Å away from the linezolid binding pocket in the peptidyl-transferase center. The mutation induces a cascade of allosteric structural rearrangements of the rRNA that ultimately results in the alteration of the antibiotic binding site...
May 9, 2017: MBio
https://www.readbyqxmd.com/read/28484708/activity-of-fosfomycin-and-daptomycin-containing-bone-cement-on-selected-bacterial-species-being-associated-with-orthopedic-infections
#18
Sigrun Eick, Kevin Hofpeter, Anton Sculean, Claudia Ender, Susann Klimas, Sebastian Vogt, Sandor Nietzsche
The purpose of this study was to determine activity of fosfomycin/gentamicin and daptomycin/gentamicin-containing PMMA bone-cement against Staphylococcus aureus (MRSA, MSSA), Staphylococcus epidermidis, Enterococcus faecium (VRE), and E. coli (ESBL; only fosfomycin). Test specimens of the bone cement were formed and bacteria in two concentrations were added one time or repeatedly up to 96 h. All fosfomycin-containing cement killed ultimately all MSSA, Staphylococcus epidermidis, and E. coli within 24 h; growth of MRSA was suppressed up to 48 h...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28483949/development-of-high-grade-daptomycin-resistance-in-corynebacterium-striatum-while-on-therapy
#19
Saira Ajmal, Omar Abu Saleh, Elena Beam
We report of a 62-year-old male with ischemic cardiomyopathy complicated by cardiogenic shock who underwent placement of a left-ventricular assist device (HeartMate II LVAD) in July 2013 as destination therapy.….
May 8, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28481142/daptomycin-new-insights-into-an-antibiotic-of-last-resort
#20
Vera Pader, Andrew M Edwards
No abstract text is available yet for this article.
May 8, 2017: Future Microbiology
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