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neutropenic infection

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https://www.readbyqxmd.com/read/28343752/efficacy-of-tedizolid-against-methicillin-resistant-staphylococcus-aureus-and-peptostreptococcus-anaerobius-in-thigh-mixed-infection-mouse-model
#1
Yuka Yamagishi, Hiroshige Mikamo, Hideo Kato, Naoya Nishiyama, Nobuhiro Asai, Yusuke Koizumi, Daisuke Sakanashi, Hiroyuki Suematsu, Katsuhiko Matsuura, Mao Hagihara
OBJECTIVE: The purpose of this study is to compare the antimicrobial activity of human simulated exposures of tedizolid 200 mg daily, and linezolid 600 mg every 12 h for the treatment of complicated skin and skin structure infection (cSSSI) caused by MRSA and Peptostreptococcus anaerobius in both the neutropenic mice thigh mixed-infection models. MATERIAL AND METHOD: Tedizolid phosphate and linezolid were used for all in vivo testing. A total of one MRSA and two P...
March 23, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28334434/withdrawn-nutrition-support-for-bone-marrow-transplant-patients
#2
REVIEW
Susan M Murray, Sima Pindoria
BACKGROUND: This is an update of the original Cochrane review published in Issue 2, 2002. Bone marrow transplantation involves administration of toxic chemotherapy and infusion of marrow cells. After treatment, patients can develop poor appetite, mucositis and gastrointestinal failure, leading to malnutrition. To prevent this, parenteral nutrition (PN) support is often first choice but is associated with increased risk of infection. Enteral nutrition (EN) is an alternative, as is addition of substrates...
March 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28327806/invasive-fungal-infection-in-patients-with-hematologic-disorders-in-a-brazilian-tertiary-care-hospital
#3
Milton Camplesi, Hildene Meneses Silva, Adriano Moraes Arantes, Carolina Rodrigues Costa, Fábio Silvestre Ataides, Thaisa Cristina Silva, Maysa de Paula Costa Dos Reis, Maria do Rosário Rodrigues Silva
INTRODUCTION: Invasive fungal infections (IFIs) are an important complication in immunocompromised individuals, particularly neutropenic patients with hematological malignancies. In this study, we aimed to verify the epidemiology and diagnosis of IFIs in patients with hematologic problems at a tertiary hospital in Goiânia-GO, Brazil. METHODS: Data from 117 patients, involving 19 cases of IFIs, were collected. The collected data included diagnosis methods, demographics, clinical characteristics, and in vitro susceptibility to different antifungal agents...
January 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28322556/can-we-make-small-molecules-lean-optimization-of-a-highly-lipophilic-taro-inhibitor
#4
Mihir Baran Mandal, Zheng Tan, Christina Madsen-Duggan, Alexei V Buevich, John P Caldwell, Reynalda Dejesus, Amy Flattery, Charles G Garlisi, Charles Gill, Sookhee Nicole Ha, Ginny Ho, Sandra Koseoglu, Marc Labroli, Kallol Basu, Sang Ho Lee, Lianzhu Liang, Jenny Liu, Todd W Mayhood, Debra McGuinness, David G McLaren, Xiujuan Wen, Emma R Parmee, Diane Rindgen, Terry Roemer, Payal R Sheth, Paul Tawa, James R Tata, Christine Yang, Shu-Wei Yang, Li Xiao, Hao Wang, Christopher Tan, Haifeng Tang, Paul Walsh, Erika Walsh, Jin Wu, Jing Su
We describe our optimization efforts to improve the physicochemical properties, solubility, and off-target profile of 1, an inhibitor of TarO - an early stage enzyme in the biosynthetic pathway for wall teichoic acid (WTA) synthesis. Compound 1 displayed a TarO IC50 of 125 nM in an enzyme assay, and possessed very high lipophilicity (clogP 7.1) with no measureable solubility in PBS buffer. Structure activity relationship (SAR) studies resulted in a series of compounds with improved lipophilic ligand efficiency (LLE) consistent with the reduction of clogP...
March 21, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28318647/prospective-evaluation-of-peripherally-inserted-central-catheter-complications-in-both-inpatient-and-outpatient-settings
#5
Christina Liscynesky, Jessica Johnston, Kelci E Haydocy, Kurt B Stevenson
We describe a prospective observational cohort (N = 187) to evaluate peripherally inserted central catheter line complications concurrently from the time of placement until removal. A significantly higher percentage of patients who experienced intraluminal thrombosis were receiving total parenteral nutrition (P ≤ .001) and had a dual lumen catheter (P = .01). Among patients with a confirmed or suspected infection, a significantly higher proportion received total parenteral nutrition (P = .01), had dual-lumen catheters (P = ...
March 16, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28314678/practices-of-infectious-control-management-during-neutropenia-a-survey-from-149-french-hospitals
#6
N Lequilliec, R Raymond, D Vanjak, N Baghdadi, H Boulestreau, J-R Zahar, J-P Gangneux
OBJECTIVE OF THE STUDY: Neutropenic patients represent a growing and fragile population in our hospitals. Numerous treatments induce neutropenia in haematology wards and elsewhere. Although strict isolation is recommended during post-haematopoietic stem cell transplantation neutropenia, this may not be the current practice in other situations. In this study, our objective was to analyse what protective measures are applied in neutropenic patients in a French survey. MATERIELS AND METHODS: A questionnaire was sent out to infection control teams of 400 public and private French hospitals to enquire about their local recommendations regarding infection prevention in neutropenic patients...
March 14, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28314653/assessment-of-risk-factors-for-candidemia-in-non-neutropenic-patients-hospitalized-in-internal-medicine-wards-a-multicenter-study
#7
M Falcone, G Tiseo, C Tascini, A Russo, E Sozio, G Raponi, C Rosin, P Pignatelli, P Carfagna, A Farcomeni, R Luzzati, F Violi, F Menichetti, M Venditti
BACKGROUND: An increasing prevalence of candidemia has been reported in Internal Medicine wards (IMWs). The aim of our study was to identify risk factors for candidemia among non-neutropenic patients hospitalized in IMWs. METHODS: A multicenter case-control study was performed in three hospitals in Italy. Patients developing candidemia (cases) were compared to patients without candidemia (controls) matched by age, time of admission and duration of hospitalization...
March 14, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28303897/synergistic-efficacy-of-bisbenzimidazole-and-carbonyl-cyanide-3-chlorophenylhydrazone-combination-against-mdr-bacterial-strains
#8
Devapriya Sinha, Stuti Pandey, Raja Singh, Vinod Tiwari, Kirti Sad, Vibha Tandon
Activation of efflux systems and the formation of biofilm are majorly adapted by microbes to resist antimicrobial agents. PPEF (bisbenzimidazole) targeting topoisomerase IA is observed to be an effective bactericidal agent against both Gram-positive and Gram-negative bacterial strains and thus can be developed as potent broad-spectrum antibiotic against MDR strains. PPEF treatment did not cause target specific mutation instead it leads to up-regulation of efflux gene in E. coli K12 as a mechanism of resistance...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28302347/fungemia-due-to-saprochaete-capitata-in-a-non-neutropenic-patient-hospitalized-in-an-intensive-care-unit-after-cardiac-surgery
#9
C Cavanna, F Lallitto, F Mangione, F Tamarozzi, P Marone, P Ceriana
The majority of invasive fungal infections observed in non-neutropenic patients hospitalized in an intensive care unit are caused by Candida spp and current guidelines recommend echinocandins as the first-line treatment. Fungemias caused by filamentous or arthrosporic fungi such as Saprochaete capitata (previously named Geotrichum capitatum) are extremely rare. In fact, invasive infections due to S. capitata have been reported almost exclusively in neutropenic oncohematological patients. In this report, we describe a case of fungemia caused by S...
March 14, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28286615/detection-of-legionella-pneumophila-in-urine-and-serum-specimens-of-neutropenic-febrile-patients-with-haematological-malignancies
#10
Nastaran Farzi, Zahra Abrehdari-Tafreshi, Omid Zarei, Leili Chamani-Tabriz
Background: Legionella pneumophila (L. pneumophila) is a gram-negative bacterium which causes ‎Legionnaires' disease as well as Pontiac fever. The Legionella infections in patients suffering from ‎neutropenia- as a common complication of cancer chemotherapy- can distribute rapidly. We ‎aimed to detect of L. pneumophila in haematological malignancy suffering patients with ‎neutropenic fever by targeting the (macrophage infectivity potentiator) mip gene. Subjects andMethods: Serum and ‎urine specimens were obtained from 80 patients and presence of mip gene of L...
January 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/28283020/carbapenem-resistant-klebsiella-pneumoniae-in-high-risk-haematological-patients-factors-favouring-spread-risk-factors-and-outcome-of-carbapenem-resistant-klebsiella-pneumoniae-bacteremias
#11
Alessandra Micozzi, Giuseppe Gentile, Clara Minotti, Claudio Cartoni, Saveria Capria, Daniele Ballarò, Stefania Santilli, Emanuele Pacetti, Sara Grammatico, Giampaolo Bucaneve, Robin Foà
BACKGROUND: Carbapenem-resistant Klebsiella pneumoniae (CRKP) spread and infections in patients with haematological malignancies are a serious concern especially in endemic areas. Treatment failures and delay in appropriate therapy for CRKP infections are frequent and the mortality rate associated with CRKP bacteremia in neutropenic haematological patients is reported about 60%. METHODS: Haematological patients harboring CRKP hospitalized between February 2012 and May 2013 in an Italian Teaching hospital were examined...
March 10, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28283014/-fungemia-and-septic-arthritis-caused-by-saprochaete-capitata-in-a-patient-with-fanconi-aplastic-anemia-a-case-report
#12
Ömür Mustafa Parkan, Mustafa Altay Atalay, Ayşe Nedret Koç, Çiğdem Pala, Gonca Aydemir, Leylagül Kaynar
Saprochaete capitata (formerly known as Blastoschizomyces capitatus, Trichosporon capitatum, Geotrichum capitatum) is a rare but emerging yeast-like fungus. It is commonly found in environmental sources and can be isolated from skin, gastrointestinal system and respiratory tract of healthy individuals as well. It mainly infects patients with hematological malignancies such as acute myeloid leukemia (AML), especially in the presence of neutropenia; and mortality rates are high in those patients. Although the data about the in vitro antifungal susceptibility are limited, it is being reported that amphotericin B and voriconazole are more effective on S...
January 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28282274/improving-the-management-of-patients-with-low-risk-neutropenic-fever-at-the-cleveland-clinic-taussig-cancer-institute
#13
Lindsey Martin Goodman, Bassam Estfan, Alberto Montero, Girish Kunapareddy, Jessica Lau, Erika Gallagher, Carolyn Best, Barb Tripp, Machelle Moeller, Brian Bolwell, James Stevenson
PURPOSE: Neutropenic fever (NF) is an oncologic emergency and has resulted historically in inpatient management. The Multinational Association for Supportive Care in Cancer (MASCC) score can be used to identify patients with NF at a low risk of complications who can be managed safely as outpatients. Despite established guidelines supporting outpatient management of low-risk neutropenic fever (LRNF), provider awareness is low, and inpatient admission for intravenous antibiotics continues to be standard of care...
March 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/28271647/mycobacterium-kansasii-pneumonia-with-mediastinal-lymphadenitis-in-a-patient-with-acute-myeloid-leukemia-successful-treatment-to-stem-cell-transplantation
#14
Yeon Geun Choi, Sung Yeon Cho, Dong Gun Lee, Eunjung Yim, Hyonsoo Joo, Seongyul Ryu, Jae Ki Choi, Hee Je Kim
Non-tuberculous mycobacterial (NTM) disease is a relatively rare cause of neutropenic fever in patients with hematologic malignancies. During the neutropenic period, performing invasive procedures for microbiological or pathological confirmation is difficult. In addition, the optimal treatment duration for NTM disease in patients with leukemia, especially prior to stem cell transplantation (SCT), has not been documented. Therefore, we report a case of pneumonia with necrotizing lymphadenitis caused by Mycobacterium kansasii diagnosed during chemotherapy being performed for acute myeloid leukemia...
January 19, 2017: Infection & Chemotherapy
https://www.readbyqxmd.com/read/28271644/a-case-of-disseminated-infection-with-skin-manifestation-due-to-non-neoformans-and-non-gattii-cryptococcus-in-a-patient-with-refractory-acute-myeloid-leukemia
#15
Sun Seob Park, Hyewon Lee, Weon Seo Park, Sang Hyun Hwang, Sang Il Choi, Mi Hong Choi, Si Won Lee, Eun Jung Ko, Young Ju Choi, Hyeon Seok Eom
Cryptococcus spp. other than Cryptococcus neoformans or Cryptococcus gattii were previously considered saprophytes and thought to be non-pathogenic to humans. However, opportunistic infections associated with non-neoformans and non-gattii species, such as Cryptococcus laurentii and Cryptococcus albidus, have increased over the past four decades. We experienced a case of cryptococcosis caused by non-neoformans and non-gattii spp. in a 47-year-old female with refractory acute myeloid leukemia after allogeneic hematopoietic stem cell transplantation...
January 16, 2017: Infection & Chemotherapy
https://www.readbyqxmd.com/read/28264853/pharmacokinetics-and-pharmacodynamics-of-minocycline-against-acinetobacter-baumannii-in-a-neutropenic-murine-pneumonia-model
#16
Jian Zhou, Kimberly R Ledesma, Kai-Tai Chang, Henrietta Abodakpi, Song Gao, Vincent H Tam
Multi-drug resistant (MDR) Acinetobacter baumannii is increasingly more prevalent in nosocomial infections. Although in vitro susceptibility of A. baumannii to minocycline is promising, the in vivo efficacy of minocycline has not been well established. In this study, the in vivo activity of minocycline was evaluated in a neutropenic murine pneumonia model. Specifically, we investigated the relationship between minocycline exposure and bactericidal activity using 5 A. baumannii isolates with a broad range of susceptibility (MIC ranged from 0...
March 6, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28264844/in-vivo-pharmacokinetic-and-pharmacodynamic-profiles-of-antofloxacin-against-klebsiella-pneumoniae-in-a-neutropenic-murine-lung-infection-model
#17
Yu-Feng Zhou, Meng-Ting Tao, Wei Huo, Xiao-Ping Liao, Jian Sun, Ya-Hong Liu
Antofloxacin is a novel broad-spectrum fluoroquinolone under development for the treatment of infections caused by a diverse group of bacterial species. We explored the pharmacodynamic (PD) profile and targets of antofloxacin against seven Klebsiella pneumoniae isolates using a neutropenic murine lung infection model. Plasma and bronchopulmonary pharmacokinetic studies were conducted at single subcutaneous doses of 2.5, 10, 40 and 160 mg/kg. Mice were infected intratracheally with K. pneumoniae and treated using 2-fold increasing total doses of antofloxacin ranging from 2...
March 6, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28257425/corneal-stromal-stem-cells-reduce-corneal-scarring-by-mediating-neutrophil-infiltration-after-wounding
#18
Andrew J Hertsenberg, Golnar Shojaati, Martha L Funderburgh, Mary M Mann, Yiqin Du, James L Funderburgh
Corneal scarring limits vision for millions of individuals worldwide. Corneal transplantation (keratoplasty) is the standard of care for corneal opacity; however, it bears the risk of graft rejection and infection and is not universally available. Stem cell therapy holds promise as an alternative to keratoplasty. Stem cells from human corneal stroma (CSSC) induce regeneration of transparent corneal tissue in a mouse wound-healing model. In this study we investigated the mechanism by which CSSC prevent deposition of fibrotic tissue...
2017: PloS One
https://www.readbyqxmd.com/read/28255613/intensive-care-medicine-research-agenda-on-invasive-fungal-infection-in-critically-ill-patients
#19
REVIEW
Matteo Bassetti, Jose Garnacho-Montero, Thierry Calandra, Bartjan Kullberg, George Dimopoulos, Elie Azoulay, Arunaloke Chakrabarti, Daniel Kett, Cristobal Leon, Luis Ostrosky-Zeichner, Maurizio Sanguinetti, Jean-Francois Timsit, Malcom D Richardson, Andrew Shorr, Oliver A Cornely
PURPOSE: To describe concisely the current standards of care, major recent advances, common beliefs that have been contradicted by recent trials, areas of uncertainty, and clinical studies that need to be performed over the next decade and their expected outcomes with regard to Candida and Aspergillus infections in non-neutropenic patients in the ICU setting. METHODS: A systematic review of the medical literature taking account of national and international guidelines and expert opinion...
March 2, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28251179/fluorocycline-tp-271-is-potent-against-complicated-community-acquired-bacterial-pneumonia-pathogens
#20
Trudy H Grossman, Corey Fyfe, William O'Brien, Meredith Hackel, Mary Beth Minyard, Ken B Waites, Jacques Dubois, Timothy M Murphy, Andrew M Slee, William J Weiss, Joyce A Sutcliffe
TP-271 is a novel, fully synthetic fluorocycline antibiotic in clinical development for the treatment of respiratory infections caused by susceptible and multidrug-resistant pathogens. TP-271 was active in MIC assays against key community respiratory Gram-positive and Gram-negative pathogens, including Streptococcus pneumoniae (MIC90 = 0.03 µg/ml), methicillin-sensitive Staphylococcus aureus (MSSA; MIC90 = 0.25 µg/ml), methicillin-resistant S. aureus (MRSA; MIC90 = 0.12 µg/ml), Streptococcus pyogenes (MIC90 = 0...
January 2017: MSphere
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