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Itraconazole

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https://www.readbyqxmd.com/read/29157011/reactive-oxygen-species-modulate-itraconazole-induced-apoptosis-via-mitochondrial-disruption-in-candida-albicans
#1
Wonjong Lee, Dong Gun Lee
Itraconazole (ITC), a well-known fungistatic agent, has potent fungicidal activity against Candida albicans. However, its mechanism of fungicidal activity has not been elucidated yet, and we aimed to identify the mechanism of ITC against C. albicans. ITC caused cell shrinkage via potassium leakage though the ion channel. Since shrunken cells could indicate apoptosis, we investigated apoptotic features. Annexin V-FITC and TUNEL assays indicated that fungicidal activity of ITC was involved in apoptosis. Subsequently, we confirmed an intracellular factor that could cause apoptosis...
November 20, 2017: Free Radical Research
https://www.readbyqxmd.com/read/29156151/limited-evidence-of-fungicide-driven-triazole-resistant-i-aspergillus-fumigatus-i-in-hamilton-canada
#2
Eta Ashu, Ga Young Kim, Patrick Roy-Gayos, Kelly Dong, Adrian Forsythe, Victoria Giglio, Gregory Korfanty, Deborah Yamamura, Jianping Xu
Aspergillus fumigatus is a ubiquitous opportunistic fungal pathogen that can cause aspergillosis in humans. Over the last decade there have been increasing global reports of treatment failure due to triazole resistance. An emerging hypothesis states that agricultural triazole fungicide use causes clinical triazole-resistance. Here we test this hypothesis in Hamilton, Ontario, Canada by examining a total of 195 agricultural, urban and clinical isolates using 9 highly polymorphic microsatellite markers. For each isolate, the in vitro susceptibilities to itraconazole and voriconazole, two triazole drugs commonly used in the management of patients, were also determined...
November 20, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/29155163/antifungal-azoles-itraconazole-and-posaconazole-exhibit-potent-in-vitro-antiviral-activity-against-clinical-isolates-of-parechovirus-a3-picornaviridae
#3
Eric Rhoden, W Allan Nix, William C Weldon, Rangaraj Selvarangan
Parechovirus A3 (Par-A3, formerly human parechovirus 3) is an emerging viral infection of the central nervous system in children. We used an automated, homogeneous, cell based assay to identify itraconazole and posaconazole as inhibitors of Par-A3, with antiviral activity below concentrations clinically attainable in pediatric patients. Currently, there is no approved antiviral treatment for Par-A3 infection, despite numerous reports of serious Par-A3 disease in neonates and infants.
November 15, 2017: Antiviral Research
https://www.readbyqxmd.com/read/29154400/a-chiral-enantioseparation-generic-strategy-for-anti-alzheimer-and-antifungal-drugs-by-short-end-injection-capillary-electrophoresis-using-an-experimental-design-approach
#4
Ahmed M Abdel-Megied, Rasha S Hanafi, Hassan Y Aboul-Enein
The present study describes a generic strategy using capillary electrophoretic (CE) method for chiral enantioseparation of anti-Alzheimer drugs, namely, donepezil (DON), rivastigmine (RIV), and antifungal drugs, namely, ketoconazole (KET), Itraconazole (ITR), fluconazole (FLU), and sertaconazole (SRT) in which these drugs have different basic and acidic properties. Several modified cyclodextrins (CDs) were applied for enantioseparation of racemates such as highly sulfated α, γ CDs, hydroxyl propyl-β-CD, and Sulfobutyl ether-β-CD...
November 20, 2017: Chirality
https://www.readbyqxmd.com/read/29153069/-emerging-pathogen-candida-kefyr-kluvyeromyces-marxianus
#5
Tuğba Çuhadar, Ayşe Kalkancı
In the central microbiology laboratory of Gazi University Hospital Candida kefyr was isolated from different clinical samples as 5.3% in 2016 and in 2017 this rate increased to 9.3% which was nearly two-fold and this has drawn our attention. The aim of this study was to evaluate the special characteristics, antifungal susceptibility and virulence properties of C.keyfr species. Germ tube, corn meal-tween 80 agar morphology and carbohydrate assimilation profiles on ID32C yeast identification system were used for the diagnosis of Candida species...
October 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/29150770/population-in-vitro-in-vivo-pharmacokinetic-model-of-first-pass-metabolism-itraconazole-and-hydroxy-itraconazole
#6
Ahmad Y Abuhelwa, Stuart Mudge, Richard N Upton, David J R Foster
The aim of this study was to develop a population in vitro-in vivo pharmacokinetic model that simultaneously describe the absorption and accumulation kinetics of itraconazole (ICZ) and hydroxy-itraconazole (HICZ) in healthy subjects. The model integrated meta-models of gastrointestinal pH and gastrointestinal transit time and in vitro dissolution models of ICZ with the absorption and disposition kinetics of ICZ and HICZ. Mean concentration intravenous data, and single- and multi-dose oral data were used for model development...
November 17, 2017: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/29150273/recurrent-and-disseminated-pityriasis-versicolor-a-novel-clinical-form-consequent-to-malassezia-host-interaction
#7
Karina Romero-Sandoval, Anderson Alves Costa, Maria Glória Teixeira Sousa, Celia Regina Furucho, Neusa Valente, Paulo R Criado, Valeria Aoki, Gil Benard
Pityriasis versicolor is a superficial fungal infection caused by Malassezia spp. The aim of this study is to propose the definition of a new clinical entity: the recurrent and disseminated pityriasis versicolor (RDPV). All patients with RDPV were enrolled over an eight-month period. Clinical and epidemiological data were obtained, Malassezia (M.) species were isolated in cultures and identified by phenotypic and molecular characterization, skin biopsies were taken from active lesions, serum levels of immunoglobulin E were obtained and therapeutic schemes were evaluated...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29149474/interventions-for-old-world-cutaneous-leishmaniasis
#8
REVIEW
Julio Heras-Mosteiro, Begoña Monge-Maillo, Mariona Pinart, Patricia Lopez Pereira, Emely Garcia-Carrasco, Pedro Campuzano Cuadrado, Ana Royuela, Irene Mendez Roman, Rogelio López-Vélez
BACKGROUND: Cutaneous leishmaniasis, caused by a parasitic infection, is considered one of the most serious skin diseases in many low- and middle-income countries. Old World cutaneous leishmaniasis (OWCL) is caused by species found in Africa, Asia, the Middle East, the Mediterranean, and India. The most commonly prescribed treatments are antimonials, but other drugs have been used with varying success. As OWCL tends to heal spontaneously, it is necessary to justify the use of systemic and topical treatments...
November 17, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29147866/a-review-of-onychomycosis-due-to-aspergillus-species
#9
REVIEW
Felix Bongomin, C R Batac, Malcolm D Richardson, David W Denning
Aspergillus spp. are emerging causative agents of non-dermatophyte mould onychomycosis (NDMO). New Aspergillus spp. have recently been described to cause nail infections. The following criteria are required to diagnose onychomycosis due to Aspergillus spp.: (1) positive direct microscopy and (2) repeated culture or molecular detection of Aspergillus spp., provided no dermatophyte was isolated. A review of 42 epidemiological studies showed that onychomycosis due to Aspergillus spp. varies between < 1 and 35% of all cases of onychomycosis in the general population and higher among diabetic populations accounting for up to 71% and the elderly; it is very uncommon among children and adolescence...
November 16, 2017: Mycopathologia
https://www.readbyqxmd.com/read/29136186/clonal-spread-and-azole-resistant-mechanisms-of-non-susceptible-candida-albicans-isolates-from-vulvovaginal-candidiasis-patients-in-three-shanghai-maternity-hospitals
#10
YongQin Wu, Cui Li, ZhiHeng Wang, Jing Gao, ZhenHua Tang, HuiFen Chen, ChunMei Ying
In our multicenter study, 43 fluconazole non-susceptible and 45 fluconazole-susceptible isolates were collected from vulvovaginal candidiasis (VVC) patients from three Shanghai maternity hospitals to analyze their molecular epidemiological features and fluconazole resistant mechanisms. Cross-resistance to fluconazole, itraconazole and voriconazole was observed in 53.5% of the nonsusceptible isolates. Though we acquired 12 clonal complexes (CCs) of diploid sequence types (DSTs) in clinical isolates by a multilocus sequence typing method, fluconazole nonsusceptible isolates all belonged to CC69 with a predominant genotype of DST 79...
November 9, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29135059/effect-of-incorporation-of-antifungal-agents-on-the-ultimate-tensile-strength-of-temporary-soft-denture-liners
#11
Karin Hermana Neppelenbroek, Jozely Francisca Mello Lima, Juliana Hotta, Lucas Lulo Galitesi, Ana Lucia Pompéia Fraga Almeida, Vanessa Migliorini Urban
PURPOSE: To investigate the ultimate tensile strength of temporary soft denture liners modified by minimum inhibitory concentrations (MICs) of antifungal agents for Candida albicans biofilm (SC5314) determined in previous microbiological research. MATERIALS AND METHODS: Dumbbell-shaped specimens (n = 7) with a central cross-sectional area of 6 × 3 × 33 mm were produced by Softone and Trusoft, without (control) or with incorporation of drugs in powder form at MICs for C...
November 14, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29127050/do-antibacterial-and-antifungal-combinations-have-better-activity-against-clinically-relevant-fusarium-species-in-vitro-synergism
#12
Tarcieli Pozzebon Venturini, Abdullah M S Al-Hatmi, Luana Rossato, Maria Isabel Azevedo, Jéssica Tairine Keller, Carla Weiblen, Janio Morais Santurio, Sydney Hartz Alves
The objective of this study was to evaluate the susceptibility of 20 clinical isolates of Fusarium spp. against classic antifungals (amphotericin B [AMB], itraconazole [ITC], voriconazole [VRC] and caspofungin [CAS]) and to nonantifungal agents (amiodarone [AMD], doxycycline [DOX] and moxifloxacin [MXF]) using broth microdilution method. The combinations between these antifungal plus nonantifungal agents were also evaluated for the determination of FICI (fractional inhibitory concentration index) using the checkerboard technique...
November 7, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29125660/primary-prophylaxis-of-invasive-fungal-infections-with-posaconazole-or-itraconazole-in-patients-with-acute-myeloid-leukemia-or-high-risk-myelodysplastic-syndromes-undergoing-intensive-cytotoxic-chemotherapy-a-real-world-comparison
#13
Mar Tormo, Ariadna Pérez-Martínez, Marisa Calabuig, Juan Carlos Hernández-Boluda, Paula Amat, David Navarro, Carlos Solano
This is an observational-retrospective study comparing the real-world outcomes associated with posaconazole vs. itraconazole as prophylaxis treatments. Two hundred and ninety-three patient admissions attributable to 174 patients were included in the study. Patients were treated with itraconazole (n = 114 admissions; 39%) or posaconazole (n = 179; 61%). Antifungal prophylaxis failure (APF) due to treatment-related adverse events (in 34 out of 293 patient admissions; 11.6%) was more frequent in the posaconazole group (6...
November 10, 2017: Mycoses
https://www.readbyqxmd.com/read/29124846/prevalence-mechanisms-and-genetic-relatedness-of-the-human-pathogenic-fungus-aspergillus-fumigatus-exhibiting-resistance-to-medical-azoles-in-the-environment-of-taiwan
#14
Hsuan-Chen Wang, Jui-Chang Huang, Yong-Hong Lin, Yu-Hsin Chen, Ming-I Hsieh, Pui-Ching Choi, Hsiu-Jung Lo, Wei-Lun Liu, Ching-Shan Hsu, Hsin-I Shih, Chi-Jung Wu, Yee-Chun Chen
Emerging azole resistance in Aspergillus fumigatus poses a serious threat to human health. This nationwide surveillance study investigated the prevalence and molecular characteristics of azole-resistant A. fumigatus environmental isolates in Taiwan, an island country with increasing use of azole fungicides. Of the 2,760 air and soil samples screened from 2014-2016, 451 A. fumigatus isolates were recovered from 266 samples, and 34 isolates from 29 samples displayed resistance to medical azoles (itraconazole, voriconazole, or posaconazole)...
November 10, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/29110252/risk-of-psoriasis-following-terbinafine-or-itraconazole-treatment-for-onychomycosis-a-population-based-case-control-comparative-study
#15
Hsien-Yi Chiu, Wei-Lun Chang, Tsen-Fang Tsai, Yi-Wen Tsai, Ming-Neng Shiu
INTRODUCTION: Several case studies have reported an association between antifungal drug use and psoriasis risk. OBJECTIVE: The objective of this study was to investigate the association between terbinafine/itraconazole exposure and psoriasis incidence. METHODS: Among patients with onychomycosis in the Taiwan National Health Insurance Research Database, 3831 incident psoriasis cases were identified during 2004-2010 and compared with 3831 age- and sex-matched controls with the same look-back period...
November 6, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/29109169/environmental-triazole-induces-cross-resistance-to-clinical-drugs-and-affects-morphophysiology-and-virulence-of-cryptococcus-gattii-and-c-neoformans
#16
Rafael Wesley Bastos, Hellem Cristina Silva Carneiro, Lorena Vívien Neves de Oliveira, Karen Maia Rocha, Gustavo José Cota Freitas, Marliete Carvalho Costa, Thaís Furtado Ferreira Magalhães, Vanessa Silva Dutra de Carvalho, Cláudia Emanuela Rocha, Gabriella Freitas Ferreira, Tatiane Alves de Paixão, Frédérique Moyrand, Guilhem Janbon, Daniel Assis Santos
Cryptococcus gattii and Cryptococcus neoformans are environmental fungi that cause cryptococcosis, which is usually treated with amphotericin B and fluconazole. However, therapeutic failure is increasing because of the emergence of resistant strains. Because these species are constantly isolated from vegetal materials and the usage of agrochemicals is growing, we postulate pesticides could be responsible for the altered susceptibility of these fungi to clinical drugs. Therefore, we evaluated the influence of the pesticide tebuconazole on the susceptibility to clinical drugs, morphophysiology, and virulence of C...
November 6, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29102309/challenges-in-culture-negative-cases-of-madurella-mycetomatis-a-case-report-re-accentuating-pcr-as-an-essential-diagnostic-tool
#17
S K, S Das, D Pandhi, G Rai, M A Ansari, C Gupta, S Haque, S A Dar
Identification of dematiaceous fungi responsible for black-grain mycetoma has remained cumbersome and time consuming for years leading to delayed diagnosis and thereby increased agony to patients. Moreover, difficult morphology of some of these fungi demanding enough expertise for species identification in addition to culture-negativity has often led to misdiagnosis and hence inapt treatment to the patients. We report the identification of Madurella mycetomatis from culture-negative black granules discharged from foot nodular lesions of a 27 years old male using PCR followed by sequencing of the internal transcribed spacer region...
October 25, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/29097142/exploring-the-feasibility-of-the-use-of-biopolymers-as-a-carrier-in-the-formulation-of-amorphous-solid-dispersions-part-i-gelatin
#18
Timothy Pas, Bjorn Vergauwen, Guy Van den Mooter
Biopolymers have rarely been used so far as carriers in the formulation of amorphous solid dispersions (ASD) to overcome poor solubility of active pharmaceutical ingredients (APIs). In an attempt to enlarge our knowledge on this topic, gelatin, type 50PS was selected. A screening study was initiated in which twelve structurally different poorly soluble biopharmaceutical classification system (BCS) Class II drugs (carbamazepine, cinnarizine, diazepam, itraconazole, nifedipine, indomethacin, darunavir (ethanolate), ritonavir, fenofibrate, griseofulvin, ketoconazole and naproxen) were selected for evaluation...
October 31, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29082624/emergence-of-aspergillus-fumigatus-azole-resistance-in-azole-na%C3%A3-ve-copd-patients-and-their-homes
#19
Camille Dauchy, Nathalie Bautin, Saad Nseir, Gabriel Reboux, René Wintjens, Olivier Le Rouzic, Boualem Sendid, Eric Viscogliosi, Patrice Le Pape, Maiken Cavling Arendrup, Philippe Gosset, Stéphanie Fry, Emilie Fréalle
Azole-resistant Aspergillus fumigatus (ARAF) has been reported in COPD patients, but has not been specifically assessed so far. Here, we evaluated ARAF prevalence in azole-naïve COPD patients and their homes, and assessed whether CYP51A mutations were similar in clinical and environmental reservoirs. Sixty respiratory samples from 41 COPD patients with acute exacerbation, and environmental samples from 36 of these patient's homes were prospectively collected. A. fumigatus was detected in respiratory samples from 11/41 patients (27%) and in 15/36 domiciles (42%)...
October 30, 2017: Indoor Air
https://www.readbyqxmd.com/read/29082045/h-capsulatum-a-not-so-benign-cause-of-pericarditis
#20
Paolo K Soriano, Muhammad Iqbal, Shakthishri Kandaswamy, Sami Akram, Abhishek Kulkarni, Tamer Hudali
The common causes of pericarditis and its course are benign in the majority of cases. Thus, further testing is usually not pursued and treatment for a presumptive viral etiology with nonsteroidal agents and steroids has been an accepted strategy. We present a patient with pericarditis who was unresponsive to first-line therapy and was subsequently found to have necrotizing granulomas of the pericardium with extensive adhesions and fungal elements seen on tissue biopsy. Serologic testing confirms active H. capsulatum infection, and he responded well to Itraconazole treatment...
2017: Case Reports in Cardiology
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