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https://www.readbyqxmd.com/read/28224698/determinants-of-the-magnitude-of-interaction-between-tacrolimus-and-voriconazole-posaconazole-in-solid-organ-recipients
#1
Thomas Vanhove, Hanneke Bouwsma, Luuk Hilbrands, Jesse J Swen, Isabel Spriet, Pieter Annaert, Bart Vanaudenaerde, Geert Verleden, Robin Vos, Dirk R J Kuypers
Administration of azole antifungals to tacrolimus-treated solid organ recipients results in a major drug-drug interaction characterized by increased exposure to tacrolimus. The magnitude of this interaction is highly variable but cannot currently be predicted. We performed a retrospective analysis of 126 solid organ recipients (95 lung, 31 kidney) co-treated with tacrolimus and voriconazole (n=100) or posaconazole (n=26). Predictors of the change in tacrolimus dose-corrected trough concentrations (C/D) between baseline and tacrolimus - azole co-therapy were assessed using linear mixed modeling...
February 21, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28223388/in-vitro-and-in-vivo-antifungal-profile-of-a-novel-and-long-acting-inhaled-azole-pc945-on-aspergillus-fumigatus-infection
#2
Thomas Colley, Alexandre Alanio, Steven L Kelly, Gurpreet Sehra, Yasuo Kizawa, Andrew G S Warrilow, Josie E Parker, Diane E Kelly, Genki Kimura, Lauren Anderson-Dring, Takahiro Nakaoki, Mihiro Sunose, Stuart Onions, Damien Crepin, Franz Lagasse, Matthew Crittall, Jonathan Shannon, Michael Cooke, Stéphane Bretagne, John King-Underwood, John Murray, Kazuhiro Ito, Pete Strong, Garth Rapeport
The profile of PC945, a novel triazole antifungal, designed for administration via inhalation, has been assessed in a range of in vitro and in vivo studies. PC945 was characterized as a potent, tight-binding inhibitor of Aspergillus fumigatus sterol 14α-demethylase (CYP51A and CYP51B) activity (IC50, 0.23 μM and 0.22 μM, respectively), with characteristic type II azole binding spectra. Against 96 clinically isolated A. fumigatus strains, the MIC values of PC945 ranged from 0.032∼>8 μg/ml, whilst those of voriconazole ranged from 0...
February 21, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28219330/empiric-treatment-against-invasive-fungal-diseases-in-febrile-neutropenic-patients-a-systematic-review-and-network-meta-analysis
#3
Ken Chen, Qi Wang, Roy A Pleasants, Long Ge, Wei Liu, Kangning Peng, Suodi Zhai
BACKGROUND: The most optimal antifungal agent for empiric treatment of invasive fungal diseases (IFDs) in febrile neutropenia is controversial. Our objective was evaluate the relative efficacy of antifungals for all-cause mortality, fungal infection-related mortality and treatment response in this population. METHODS: Pubmed, Embase and Cochrane Library were searched to identify randomized controlled trials (RCTs). Two reviewers performed the quality assessment and extracted data independently...
February 20, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28214276/-in-vitro-antifungal-activity-of-azoles-and-amphotericin-b-against-malassezia-furfur-by-the-clsi-m27-a3-microdilution-and-etest-%C3%A2-methods
#4
Juan Camilo Galvis-Marín, María Ximena Rodríguez-Bocanegra, Adriana Del Pilar Pulido-Villamarín, Rubiela Castañeda-Salazar, Adriana Marcela Celis-Ramírez, Melva Yomary Linares-Linares
BACKGROUND: Malassezia furfur is a human skin commensal yeast that can cause skin and opportunistic systemic infections. Given its lipid dependant status, the reference methods established by the Clinical and Laboratory Standards Institute (CLSI) to evaluate antifungal susceptibility in yeasts are not applicable. AIMS: To evaluate the in vitro susceptibility of M. furfur isolates from infections in humans to antifungals of clinical use. METHODS: The susceptibility profile to amphotericin B, itraconazole, ketoconazole and voriconazole of 20 isolates of M...
February 14, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28211475/biofilm-formation-of-the-black-yeast-like-fungus-exophiala-dermatitidis-and-its-susceptibility-to-antiinfective-agents
#5
Lisa Kirchhoff, Maike Olsowski, Katrin Zilmans, Silke Dittmer, Gerhard Haase, Ludwig Sedlacek, Eike Steinmann, Jan Buer, Peter-Michael Rath, Joerg Steinmann
Various fungi have the ability to colonize surfaces and to form biofilms. Fungal biofilm-associated infections are frequently refractory to targeted treatment because of resistance to antifungal drugs. One fungus that frequently colonises the respiratory tract of cystic fibrosis (CF) patients is the opportunistic black yeast-like fungus Exophiala dermatitidis. We investigated the biofilm-forming ability of E. dermatitidis and its susceptibility to various antiinfective agents and natural compounds. We tested 58 E...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28208876/prescribing-pattern-of-antifungal-medications-at-a-tertiary-care-hospital-in-oman
#6
Khalid A Al Balushi, Mohammed A Alzaabi, Fatma Alghafri
INTRODUCTION: Inappropriate use of antifungal agents is implicated in the global burden of antifungal resistance, adverse outcomes like persistent infections, unnecessary exposure and increased cost. Data collection from time to time is to be done in order to have a check on the resistance/sensitivity pattern of the commonly prescribed antifungal drugs. AIM: To describe the pattern of antifungal drug prescription and administration to patients attending a university hospital in Oman...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28188050/successful-treatment-with-caspofungin-of-candiduria-in-a-child-with-wilms-tumor-review-of-literature
#7
M S Rezai, A Vaezi, H Fakhim, A Soleimani, H Mohammad Jafari, S Mohseni, H Badali
Symptomatic candiduria often occurs in patients with indwelling bladder catheters or immunocompromised host. Isolation of Candida in urine in high-risk patients should primarily be considered as a marker for candidemia. Hematological and genitourinary malignancies are one of the main risk factors associated with Candida urinary tract infections (CUTI). Fluconazole is a choice for initial treatment of CUTI, but it is fluctuate depending on the patient's condition including renal failure, site of urinary infection and Candida species...
February 7, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28180049/invasive-aspergillosis-of-anterior-skull-base-in-the-immunocompetent-host-outcomes-with-a-combined-treatment-modality-an-institutional-experience
#8
Saurin R Shah, Amit Keshri, Simple Patadia, Rungmei S K Marak, Sanjay Behari
Objectives To study outcomes with voriconazole therapy in immunocompetent individuals following maximal safe endoscopic resection in invasive aspergillosis of the anterior skull base. Design Retrospective study of patients with chronic invasive aspergillosis including symptomatology, extent of disease, and response to voriconazole following maximal safe resection in immunocompetent individuals. Setting Tertiary care superspeciality referral center. Participants Ten consecutive patients of invasive aspergillosis of anterior skull base managed over a period of 2 years...
February 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28177134/the-influence-of-combination-use-of-cyp450-inducers-on-the-pharmacokinetics-of-voriconazole-a-systematic-review
#9
REVIEW
T-Y Li, W Liu, K Chen, S-Y Liang, F Liu
WHAT IS KNOWN AND OBJECTIVES: Voriconazole is a triazole antifungal agent and is extensively metabolized via cytochrome P450 (CYP450); therefore, special precautions need to be taken when co-administered with a known CYP450 inducer, which may lead to treatment failure. The influence of some CYP450 inducers on the pharmacokinetics of voriconazole has been described in previous studies, but a systematic review was lacking. In this study, we carried out a systematic review to assess the influence of CYP450 inducers on the pharmacokinetic (PK) parameters of voriconazole...
February 8, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28163947/scedosporium-prolificans-septic-arthritis-and-osteomyelitis-of-the-hip-joints-in-an-immunocompetent-patient-a-case-report-and-literature-review
#10
Luca Daniele, Michael Le, Adam Franklin Parr, Lochlin Mark Brown
Scedosporium prolificans, also known as Scedosporium inflatum, is a fungus widespread in soil, sewage, and manure. This species is highly virulent and is an emerging opportunistic pathogen found in penetrating injuries in immunocompromised patients. Here we report on an immunocompetent patient with bilateral hip S. prolificans-associated osteomyelitis and septic arthritis caused by intentional penetrating trauma. The condition was refractory to initial antimicrobial suppression and surgical irrigation and debridement...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28161296/successful-treatment-of-talaromyces-amestolkiae-pulmonary-infection-with-voriconazole-in-an-acute-lymphoblastic-leukemia-patient
#11
Hiram Villanueva-Lozano, Rogelio de J Treviño-Rangel, Erick W Renpenning-Carrasco, Gloria M González
Infections due to Talaromyces spp. are uncommon, but they have been reported previously as causative agents of disease in immunocompromised patients. The prognosis of hemato-oncological patients with an invasive fungal infection is generally poor and the identification of the causative agent is usually not achieved or in some cases the isolated agent is taken as a contaminant and not treated, which contributes to their bad outcome. We report a case of Talaromyces amestolkiae pulmonary infection in an acute lymphoblastic leukemia patient, which was successfully treated with voriconazole, and discuss the importance of molecular identification and treatment of non-traditionally pathogenic fungi in this specific subset of patients...
February 1, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28159657/dose-optimisation-of-voriconazole-with-therapeutic-drug-monitoring-in-children-a-single-centre-experience-in-china
#12
Liang Liu, Xing Zhou, Tingting Wu, Hongliang Jiang, Sitao Yang, Yang Zhang
The pharmacokinetic profile of voriconazole is highly variable, rendering inconsistent and/or inadequate dosing, especially in children <2 years old. A retrospective analysis was performed in children receiving voriconazole with at least one plasma trough level (Ctrough) monitored. Statistical analyses were performed to examine the dose-exposure relationship as well as other factors potentially affecting voriconazole Ctrough in children of different ages. A total of 107 paediatric patients were included, of whom 75 were <2 years old...
January 31, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28159656/influence-of-different-proton-pump-inhibitors-on-the-pharmacokinetics-of-voriconazole
#13
Fang Qi, Liqin Zhu, Na Li, Tingyue Ge, Gaoqi Xu, Shasha Liao
This study aimed to determine the influence of proton pump inhibitors (PPIs) on the pharmacokinetics of voriconazole and to characterise potential drug-drug interactions (DDIs) between voriconazole and various PPIs (omeprazole, esomeprazole, lansoprazole and rabeprazole). Using adjusted physicochemical data and the pharmacokinetic (PK) parameters of voriconazole and PPIs, physiologically based pharmacokinetic (PBPK) models were built and were verified in healthy subjects using GastroPlus(TM) to predict the plasma concentration-time profiles of voriconazole and PPIs...
January 31, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28150341/invasive-infections-due-to-saprochaete-and-geotrichum-species-report-of-23-cases-from-the-fungiscope-registry
#14
Luisa Durán Graeff, Danila Seidel, Maria J G T Vehreschild, Axel Hamprecht, Anupma Kindo, Zdenek Racil, Judit Demeter, Sybren De Hoog, Ute Aurbach, Maren Ziegler, Hilmar Wisplinghoff, Oliver A Cornely
Saprochaete and Geotrichum spp. are rare emerging fungi causing invasive fungal diseases in immunosuppressed patients and scarce evidence is available for treatment decisions. Among 505 cases of rare IFD from the FungiScope(™) registry, we identified 23 cases of invasive infections caused by these fungi reported from 10 countries over a 12-year period. All cases were adults and previous chemotherapy with associated neutropenia was the most common co-morbidity. Fungaemia was confirmed in 14 (61%) cases and deep organ involvement included lungs, liver, spleen, central nervous system and kidneys...
February 2, 2017: Mycoses
https://www.readbyqxmd.com/read/28144822/in-vitro-activity-of-berberine-alone-and-in-combination-with-antifungal-drugs-against-planktonic-forms-and-biofilms-of-trichosporon-asahii
#15
Lin Cong, Yong Liao, Suteng Yang, Rongya Yang
Trichosporon asahii (T. asahii) is an opportunistic pathogen that can cause life-threatening infections in immunocompromised patients, with high mortality rates up to 80% despite treated with antifungal drugs. The biofilms-forming ability of T. asahii on indwelling medical devices may account for the resistance to antifungal drugs. Berberine (BBR) has been demonstrated to have antifungal activity and synergistic effects in combination with antifungal drugs against pathogenic fungi. In the present study, the in vitro activities of BBR alone or combined with fluconazole (FLC), itraconazole (ITC), voriconazole (VRC), caspofungin (CAS) and amphotericin B (AMB) against planktonic forms and biofilms of 21 clinical T...
January 31, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28144736/-candida-infiltrations-in-the-iris-and-lens-during-iritis-and-situation-after-sepsis
#16
D Kuerten, M Fuest, B Mazinani, P Walter, N Plange
Intraocular Candida infections are overall rather rare; nevertheless they are often found as endogenous infections after Candida sepsis and can be sight-threatening. The most common manifestations are either a sole chorioretinitis or an endophthalmitis. Here we report the case of a 35-year-old man developing Candida infiltrations in the lens capsule and behind the iris after corticosteroid treatment of a presumed HLA-B27-positive iritis. The patient suffered from a life-threatening intensive care stay with positive Candida blood cultures earlier after intestinal perforation...
January 31, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28143591/a-case-report-of-intravenous-posaconazole-in-hepatic-and-renal-impairment-patient-with-invasive-aspergillus-terreus-infection-safety-and-role-of-therapeutic-drug-monitoring
#17
Pitchaya Dilokpattanamongkol, Panadda Panusitthikorn, Rasda Boonprasert, Methee Chayakulkeeree, Porpon Rotjanapan
BACKGROUND: Invasive aspergillosis (IA) is a fatal infectious complication among immunocompromised patients. Aspergillus terreus, the fourth common species can be difficult to treat due to a unique resistance pattern. To date, there has been no report on safety and dose adjustment when intravenous posaconazole is selected in hepatic and renal impairment patient. We present a rare case of intravenous posaconazole use in a hepatic and renal impairment patient with invasive A. terreus pulmonary infection...
January 31, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28141498/first-genotype-identification-of-trichosporon-asahii-in-sfax-tunisia
#18
Hayet Sellami, Houaida Trabelsi, Sourour Neji, Imen Amouri, Fatma Cheikhrouhou, Fattouma Makni, Ali Ayadi
PURPOSE: The objectives of our study were species identification and genotyping of Trichosporon isolates collected at the Parasitology and Mycology Laboratory in Sfax, Tunisia. METHODOLOGY: Molecular identification was carried out by analyzing the IGS1 regions of the rDNA of 30 Trichosporon isolates. RESULTS: Trichosporon asahii was the most frequent species detected. Furthermore, four genotypes were identified in Tunisia: 1 (46.4%), 4 (35...
January 27, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28139861/species-diversity-antifungal-susceptibility-and-phenotypic-and-genotypic-characterisation-of-exophiala-spp-infecting-patients-in-different-medical-centres-in-brazil
#19
Wendy C Silva, Sarah S Gonçalves, Daniel W C L Santos, Ana Carolina B Padovan, Fernando C Bizerra, Analy S A Melo
The Exophiala genus is responsible for many superficial and invasive infections resulting from black fungi. Identification of Exophiala at the species level is based on morphological observations complemented by molecular tests. The aim of this study was to identify 23 clinical isolates of Exophiala spp. and evaluate the antifungal susceptibility to seven different agents. Molecular identification was based on an analysis of ITS region of rDNA using genomic databases. The micromorphology was evaluated by microculture and scanning electron microscopy...
January 31, 2017: Mycoses
https://www.readbyqxmd.com/read/28138369/distribution-and-drug-susceptibility-of-candida-spp-associated-with-female-genital-tract-infection-chongqing-china
#20
Xiaodong Luo, Xiaojing Dong, Zhi Pen
BACKGROUND: Vulvovaginal candidiasis is defined as vulvovaginitis associated with vaginal carriage of Candida spp. and is a common problem with a high rate of morbidity. OBJECTIVES: To investigate the distribution of Candida spp. and evaluate the corresponding antifungal susceptibility in women with genital tract infection in Chongqing, southwestern China. PATIENTS AND METHODS: Samples (n = 2.129) were obtained from female patients with symptoms of genital tract infection...
October 2016: Jundishapur Journal of Microbiology
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