keyword
MENU ▼
Read by QxMD icon Read
search

caspofungin

keyword
https://www.readbyqxmd.com/read/27915302/givinostat-exhibits-in-vitro-synergy-with-posaconazole-against-aspergillus-spp
#1
Yi Sun, Lujuan Gao, Chengyan He, Qingzhi Wu, Ming Li, Tongxiang Zeng
In vitro interactions of givinostat, a hydroxamate-derived histone deacetylase inhibitor, and antifungals including itraconazole, voriconazole, posaconazole, amphotericin B and caspofungin against Aspergillus spp. were assessed via broth microdilution checkerboard technique system. A total of 30 isolates of Aspergillus spp., including 20 strains of A. fumigatus and 10 strains of A. flavus were studied. The results revealed favorable synergistic effects between givinostat and posaconazole (83.3%) against Aspergillus isolates...
December 2, 2016: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/27910191/tintelnotia-a-new-genus-in-phaeosphaeriaceae-harbouring-agents-of-cornea-and-nail-infections-in-humans
#2
S A Ahmed, W Hofmüller, M Seibold, G S de Hoog, H Harak, I Tammer, A D van Diepeningen, W Behrens-Baumann
Phaeosphaeriaceae is a family in the order Pleosporales containing numerous plant pathogens, endophytes, lichenised fungi, and environmental saprobes. A novel genus, Tintelnotia is introduced containing two species, one of which caused an eye infection and several nail infections in humans. All species of Tintelnotia produce conidia in soft pycnidia with a wide ostiole. The generic type species is T. opuntiae causing necrotic spots on cactus plants. The isolates of the human opportunist T. destructans showed variable susceptibility pattern to a panel of common antifungal agents...
December 1, 2016: Mycoses
https://www.readbyqxmd.com/read/27904878/de-novo-pyrimidine-biosynthesis-connects-cell-integrity-to-amphotericin-b-susceptibility-in-cryptococcus-neoformans
#3
Dithi Banerjee, Timothy C Umland, John C Panepinto
The use of amphotericin B (AmB) in conjunction with 5-fluorocytosine (5-FC) is known to be the optimal therapy for treating cryptococcosis, but the mechanism by which 5-FC synergizes with AmB is unknown. In this study, we generated a Cryptococcus neoformans ura1Δ mutant lacking dihydroorotate dehydrogenase (DHODH), which demonstrated temperature-sensitive growth due to a defect in cell integrity and sensitivity to cell wall-damaging agents. In addition, sensitivity to AmB was greatly increased. Inclusion of uracil or uridine in the medium did not suppress the cell wall or AmB phenotype, whereas complementation with the wild-type URA1 gene complemented the mutant phenotype...
November 2016: MSphere
https://www.readbyqxmd.com/read/27904738/recent-developments-in-the-management-of-invasive-fungal-infections-in-patients-with-oncohematological-diseases
#4
REVIEW
Markus Ruhnke, Stefan Schwartz
Patients with hematological cancer have a high risk of invasive fungal diseases (IFDs). These infections are mostly life threatening and an early diagnosis and initiation of appropriate antifungal therapy are essential for the clinical outcome. Most commonly, Aspergillus and Candida species are involved. However, other non-Aspergillus molds are increasingly be identified in cases of documented IFDs. Important risk factors are long lasting granulocytopenia with neutrophil counts below 500/μl for more than 10 days or graft-versus-host disease resulting from allogeneic stem-cell transplantation...
December 2016: Therapeutic Advances in Hematology
https://www.readbyqxmd.com/read/27902377/comparison-of-susceptibility-patterns-using-commercially-available-susceptibility-testing-methods-performed-on-prevalent-candida-species
#5
David Cretella, Katie E Barber, S Travis King, Kayla R Stover
The rising rates of invasive fungal infections caused by non-albicans Candida and the increasing emergence of antifungal resistance complicate the management of invasive candidiasis. Accurate and timely antifungal susceptibility testing is critical to targeting antifungal therapy. The purpose of this study was to compare commercially available susceptibility testing methods using prospectively collected Candida isolates. Susceptibility testing was performed on 74 Candida isolates collected from July 2014-March 2015 using broth microdilution (BMD) according to the Clinical and Laboratory Standards Institute (CLSI) method, Etest, Vitek2 (YS-05), and Sensititre...
November 1, 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27872079/the-paradoxical-effect-of-echinocandins-in-aspergillus-fumigatus-relies-on-recovery-of-the-%C3%AE-1-3-glucan-synthase-fks1
#6
Veronika Loiko, Johannes Wagener
Echinocandins target the fungal cell wall by inhibiting biosynthesis of the cell wall carbohydrate β-1,3-glucan. This antifungal drug class exhibits a paradoxical effect which is characterized by the resume of growth of otherwise susceptible strains at higher drug concentrations (approx.4-32 μg/ml). The nature of this phenomenon is still unknown. In this study, we analyzed the paradoxical effect of the echinocandin caspofungin on the pathogenic mold Aspergillus fumigatus Using a conditional fks1 mutant, we show that very high caspofungin concentrations exert an additional antifungal activity beside inhibition of the β-1,3-glucan synthase...
November 21, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27862414/epidemiology-and-cost-implications-of-candidemia-a-6-year-analysis-from-a-developing-country
#7
Aysegul Ulu Kilic, Emine Alp, Fatma Cevahir, Zeynep Ture, Nuran Yozgat
Surveillance of candidemia is essential to monitor trends in species distribution and change in the incidence and antifungal resistance. In this study, we aimed to investigate prevalence, resistance rates, antifungal utilization and costs. A 6-year retrospective analysis of the data belonging to patients with candidemia hospitalized between 2010 and 2016 was performed. The annual usage of fluconazole and caspofungin and the usage of these antifungals in different units were described in defined daily doses (DDD) per 1000 patient days...
November 9, 2016: Mycoses
https://www.readbyqxmd.com/read/27859907/identification-and-functional-ascertainment-of-the-pneumocystis-jirovecii-potential-drug-targets-gsc1-and-kre6-involved-in-glucan-synthesis
#8
Amanda Luraschi, Ousmane H Cissé, Marco Pagni, Philippe M Hauser
The most efficient drug against the human pathogenic fungus Pneumocystis jirovecii is cotrimoxazole targeting the folate biosynthesis. However, resistance towards it is emerging and adverse effects occur in some patients. Studies in rodent models suggested that echinocandins could be useful to treat Pneumocystis pneumonia. Echinocandins inhibit the catalytic subunit Gsc1 of the enzymatic complex ensuring the synthesis of 1,3-β glucan, an essential constituent of cell walls of most fungi. Besides, inhibitors of the enzyme Kre6 involved in the synthesis of 1,6-β glucan, another essential component of fungal walls, were recently described...
November 17, 2016: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/27855112/low-caspofungin-exposure-in-patients-in-the-intensive-care-unit
#9
Kim C M van der Elst, Anette Veringa, Jan G Zijlstra, Albertus Beishuizen, Rob Klont, Petra Brummelhuis-Visser, Donald R A Uges, Daan J Touw, Jos G W Kosterink, Tjip S van der Werf, Jan-Willem C Alffenaar
In critically ill patients, drug exposure may be influenced by altered drug distribution and clearance. Earlier studies showed that the variability in caspofungin exposure was high in Intensive Care Unit (ICU) patients. The primary objective of this study was to determine if the standard dose of caspofungin resulted in adequate exposure in critically ill patients. A multicenter prospective study in ICU patients with (suspected) invasive candidiasis was conducted in the Netherlands, from November 2013 to October 2015...
November 14, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27835947/successful-treatment-of-severe-pneumocystis-pneumonia-in-an-immunosuppressed-patient-using-caspofungin-combined-with-clindamycin-a-case-report-and-literature-review
#10
Hongjuan Li, Haoming Huang, Hangyong He
BACKGROUND: Pneumocystis jirovecii is responsible for Pneumocystis pneumonia (PCP), which occurs almost exclusively in immunocompromised individuals. Trimethoprim-sulfamethoxazole (TMP-SMZ) is regarded as the first-line treatment and prophylaxis for P. jirovecii infection, but the frequency of adverse reactions and newly emerged antibiotic resistance limit its use. CASE PRESENTATION: Ulcerations and hemorrhages involving the tongue were noted secondary to TMP-SMZ desensitization against PCP in a 46-year-old male who had previously been diagnosed with IgA nephropathy and sustained prolonged corticosteroid therapy...
November 11, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27830376/clinical-effectiveness-of-itraconazole-as-antifungal-prophylaxis-in-aml-patients-undergoing-intensive-chemotherapy-in-the-modern-era
#11
C L Keighley, P Manii, S R Larsen, S van Hal
Antifungal prophylaxis regimens vary between centres, informed by local epidemiology and antifungal stewardship practices. The advantages of itraconazole over posaconazole prophylaxis include maintaining the utility of azole therapy for suspected breakthrough invasive fungal infection (bIFI). We examined the effectiveness and tolerability of itraconazole as prophylaxis in acute myeloid leukaemia (AML) patients. We sought to determine the rate of probable and proven bIFI in the context of itraconazole prophylaxis in a real-life setting...
November 9, 2016: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/27824006/white-opaque-switching-in-different-mating-type-like-locus-gene-types-of-clinical-candida-albicans-isolates
#12
Hou-Min Li, Yumi Shimizu-Imanishi, Reiko Tanaka, Ruo-Yu Li, Takashi Yaguchi
BACKGROUND: Candida albicans (C. albicans) can become a pathogen causing superficial as well as life-threatening systemic infections, especially in immunocompromised patients. Many phenotypic attributes contribute to its capacity to colonize human organs. In our study, 93 C. albicans isolates from patients of various candidiasis in a hospital of China were surveyed. We aimed to investigate the white-opaque (WO) switching competence, drug sensitivity, and virulence of mating type-like (MTL) a/α isolates...
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27821139/micafungin-versus-caspofungin-in-the-treatment-of-candida-glabrata-infection-a-case-report
#13
Shoko Merrit Yamada, Yusuke Tomita, Tomotsugu Yamaguchi, Toshiaki Matsuki
BACKGROUND: Micafungin and caspofungin, which are both echinocandins, elicit their antifungal effects by suppressing the synthesis of β-D-glucan, an essential component of fungal cell walls. If micafungin is not effective against a fungal infection, is it unreasonable to switch to caspofungin? CASE PRESENTATION: An 80-year-old Asian man presented to our hospital with brain and lung abscesses. Klebsiella pneumonia and Escherichia coli were identified by sputa culture and Streptococcus mitis was identified in the brain abscess culture obtained by drainage surgery...
November 8, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27816903/molecular-and-antifungal-susceptibility-study-on-trichosporonemia-and-emergence-of-trichosporon-mycotoxinivorans-as-a-bloodstream-pathogen
#14
Yubhisha Dabas, Immaculata Xess, Pratibha Kale
A total of 21 Trichosporon spp. isolates from blood over a period of 5 years (January 2009 to December 2013) were included in the study. The most common underlying diseases found were pancreatitis (33.3%) and cancer (33.3%). Trichosporon asahii (80.9%) was the commonest species followed by Trichosporon mycotoxinivorans (14.2%) and Trichosporon faecale (4.7%). On IGS1 region sequencing the most predominant T. asahii type in our region was genotype 1 (16/17 isolates; 94.1%) and one isolate belonged to genotype 4...
November 5, 2016: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/27808087/the-antifungal-caspofungin-increases-fluoroquinolone-activity-against-staphylococcus-aureus-biofilms-by-inhibiting-n-acetylglucosamine-transferase
#15
Wafi Siala, Soňa Kucharíková, Annabel Braem, Jef Vleugels, Paul M Tulkens, Marie-Paule Mingeot-Leclercq, Patrick Van Dijck, Françoise Van Bambeke
Biofilms play a major role in Staphylococcus aureus pathogenicity but respond poorly to antibiotics. Here, we show that the antifungal caspofungin improves the activity of fluoroquinolones (moxifloxacin, delafloxacin) against S. aureus biofilms grown in vitro (96-well plates or catheters) and in vivo (murine model of implanted catheters). The degree of synergy among different clinical isolates is inversely proportional to the expression level of ica operon, the products of which synthesize poly-N-acetyl-glucosamine polymers, a major constituent of biofilm matrix...
November 3, 2016: Nature Communications
https://www.readbyqxmd.com/read/27807668/fournier-gangrene-caused-by-candida-albicans-in-an-infant-after-cardiac-surgery
#16
Radoslaw Jaworski, Ninela Irga-Jaworska, Łukasz Naumiuk, Maciej Chojnicki, Ireneusz Haponiuk
Fournier gangrene is a rare, rapidly progressive, life-threatening condition. We report a 23-day-old boy with pulmonary atresia and ventricular septal defect treated surgically, who developed Fournier gangrene. Emergency surgery was performed with tissue sampling for microbiological examination. Candida albicans was confirmed; caspofungin followed by fluconazole was administered with excellent results.
November 2, 2016: Mycopathologia
https://www.readbyqxmd.com/read/27799221/frequency-of-the-paradoxical-effect-measured-using-eucast-with-micafungin-anidulafungin-and-caspofungin-against-candida-spp-isolates-causing-candidemia
#17
Laura Judith Marcos-Zambrano, Pilar Escribano, Carlos Sánchez-Carrillo, Emilio Bouza, Jesús Guinea
We report data on the frequency of the paradoxical effect of echinocandins against Candida spp. (n= 602 incident isolates) using the EUCAST EDef 7.2 procedure. The paradoxical effect for one or more echinocandins was observed in 16% of the isolates. However, differences between species were found, and the paradoxical effect was more common in Candida tropicalis (P<0.001). Caspofungin was the drug in which the paradoxical effect was most common, followed by anidulafungin and micafungin (P<0.001).
October 31, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27799206/a-multi-center-study-of-method-dependent-epidemiological-cutoff-values-ecvs-for-resistance-detection-in-candida-spp-and-aspergillus-spp-to-amphotericin-b-and-echinocandins-for-the-etest-agar-diffusion-method
#18
A Espinel-Ingroff, M Arendrup, E Cantón, S Cordoba, E Dannaoui, J García-Rodríguez, G M Gonzalez, N P Govender, E Martin-Mazuelos, C Lass-Flörl, M Lackner, M J Linares Sicilia, M A Rodriguez-Iglesias, T Pelaez, R K Shields, G Garcia-Effron, J Guinea, M Sanguinetti, J Turnidge
Method-dependent Etest epidemiological cutoff values (ECVs) are not available for susceptibility testing of either Candida or Aspergillus species with amphotericin B or echinocandins. In addition, reference caspofungin MICs for Candida spp. are unreliable. Candida and Aspergillus species wild-type (WT) Etest MIC distributions (microorganisms in a species-drug combination with no detectable phenotypic resistance) were established for 4,341 Candida albicans, 113 C. dubliniensis, 1,683 C. glabrata species complex (SC), 709 C...
October 31, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27769972/physical-compatibility-of-tedizolid-phosphate-with-selected-i-v-drugs-during-simulated-y-site-administration
#19
Islam Ghazi, Yukihiro Hamada, David P Nicolau
PURPOSE: The physical compatibility of commonly used agents that could be coadministered in the clinical setting with tedizolid phosphate during Y-site administration was evaluated. METHODS: Tedizolid phosphate vials were reconstituted to a final concentration of 0.8 mg/mL. All other drugs were prepared according to manufacturers' recommendations and diluted with 0.9% sodium chloride injection (where applicable) to the highest standard concentrations used clinically...
November 1, 2016: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/27766684/multidrug-resistant-fusarium-in-keratitis-a-clinico-mycological-study-of-keratitis-infections-in-chennai-india
#20
Ananya Tupaki-Sreepurna, Abdullah M S Al-Hatmi, Anupma J Kindo, Murugan Sundaram, G Sybren de Hoog
In this study, we aimed to present the first molecular epidemiological data from Chennai, India, analyse keratitis cases that have been monitored in a university hospital during 2 years, identify the responsible Fusarium species and determine antifungal susceptibilities. A total of 10 cases of keratitis were included in the study. Fusarium isolates were identified using the second largest subunit of the RNA polymerase gene (RPB2) and the translation elongation factor 1 alpha (TEF1). Antifungal susceptibility was tested by the broth microdilution method according to the Clinical and Laboratory Standards Institute (CLSI) methodology...
October 21, 2016: Mycoses
keyword
keyword
54692
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"