keyword
MENU ▼
Read by QxMD icon Read
search

Azole

keyword
https://www.readbyqxmd.com/read/28109740/first-clinical-isolation-report-of-azole-resistant-aspergillus-fumigatus-with-tr34-l98h-type-mutation-in-japan
#1
Takahito Toyotome, Daisuke Hagiwara, Hideyuki Kida, Takahiro Ogi, Akira Watanabe, Terumi Wada, Ryoichi Komatsu, Katsuhiko Kamei
Recently, azole-resistant Aspergillus fumigatus containing a 34-bp or 46-bp tandem repeat in the promoter region of cyp51A combined with amino acid substitution(s) has appeared in the environment worldwide, including several Asian countries. In this study, we isolated the 34-bp tandem repeat-containing azole-resistant A. fumigatus strain OKH50 from a patient in Japan in May 2016. The patient had not been treated with medical azoles before the strain isolation, suggesting that the resistant property was acquired before infection...
January 19, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28104387/impact-of-echinocandin-on-prognosis-of-proven-invasive-candidiasis-in-icu-a-post-hoc-causal-inference-model-using-the-amarcand2-study
#2
Sébastien Bailly, Olivier Leroy, Elie Azoulay, Philippe Montravers, Jean-Michel Constantin, Hervé Dupont, Didier Guillemot, Olivier Lortholary, Jean-Paul Mira, Pierre-François Perrigault, Jean-Pierre Gangneux, Jean-François Timsit
OBJECTIVE: guidelines recommend first-line systemic antifungal treatment (SAT) with echinocandins in invasive candidiasis (IC), especially in critically ill patients. This study aimed at assessing the impact of echinocandins compared to azoles as initial SAT on the 28-day prognosis in adult ICU patients. METHODS: From the prospective multicenter AmarCAND2 cohort (835 patients), we selected those with documented IC and treated with echinocandins (ECH) or azoles (AZO)...
January 16, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28093910/structural-and-spectral-properties-of-photochromic-diarylethenes-the-size-effect-of-the-ethene-bridge
#3
Andrey G Lvov, Alexey M Kavun, Vadim V Kachala, Yulia V Nelyubina, Anatoly V Metelitsa, Valerii Z Shirinian
The effect of the size of the ethene bridge on the structural and spectral properties of photochromic diarylethenes, which remains a poorly understood phenomenon, was studied as applied to diarylethenes containing unsymmetrical (cyclohexenone and cyclopentenone) and symmetrical (cyclohexene and cyclopentene) ethene bridges. Thiophene, oxazole, and imidazole derivatives were used as aryl moieties. An increase in the size of the ethene bridge in the cycloalkenone series was found to be accompanied by a hypsochromic shift of the absorption maximum of the photoinduced form, whereas no difference was found for cycloalkenes...
January 17, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28087293/first-itraconazole-resistant-aspergillus-fumigatus-clinical-isolate-harbouring-a-g54e-substitution-in-cyp51ap-in-south-america
#4
Florencia Leonardelli, Laura Theill, María Elena Nardin, Daiana Macedo, Catiana Dudiuk, Emilce Mendez, Soledad Gamarra, Guillermo Garcia-Effron
BACKGROUND: A 27-year-old male rural worker was admitted with a fungal keratitis due to an injury involving plant detritus. MATERIALS AND METHODS: Specimens were collected for microscopy examination and culture. The isolate was identified by morphological and molecular criteria. Susceptibility testing was performed using CLSI methods. CYP51A gene was PCR amplified and sequenced. RESULTS: An Aspergillus fumigatus strain resistant to itraconazole (MIC>8μg/ml) was isolated...
January 10, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28080986/clinical-implications-of-globally-emerging-azole-resistance-in-aspergillus-fumigatus
#5
REVIEW
Jacques F Meis, Anuradha Chowdhary, Johanna L Rhodes, Matthew C Fisher, Paul E Verweij
Aspergillus fungi are the cause of an array of diseases affecting humans, animals and plants. The triazole antifungal agents itraconazole, voriconazole, isavuconazole and posaconazole are treatment options against diseases caused by Aspergillus However, resistance to azoles has recently emerged as a new therapeutic challenge in six continents. Although de novo azole resistance occurs occasionally in patients during azole therapy, the main burden is the aquisition of resistance through the environment. In this setting, the evolution of resistance is attributed to the widespread use of azole-based fungicides...
December 5, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28080217/synergistic-effects-of-tetrandrine-with-posaconazole-against-aspergillus-fumigatus
#6
Shui-Xiu Li, Yan-Jun Song, Ling Jiang, Ya-Jing Zhao, Hui Guo, Dong-Mei Li, Kun-Ju Zhu, Hong Zhang
In our earlier in vitro and in vivo studies, synergistic effects were observed when itraconazole or voriconazole were combined with tetrandrine (TET) against Aspergillus fumigatus, and the synergistic mechanism was related to inhibition of the drug efflux pump. Posaconazole (PCZ) is a broad-spectrum triazole antifungal agent used for the treatment of diverse fungal infections, including aspergillosis and candidiasis. Herein, the antifungal effects of TET are further investigated in vitro and in vivo alone or combined with PCZ against 20 clinical isolates of A...
January 12, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28066103/efficacy-and-tolerability-of-topical-sertaconazole-versus-topical-terbinafine-in-localized-dermatophytosis-a-randomized-observer-blind-parallel-group-study
#7
Dattatreyo Chatterjee, Sudip Kumar Ghosh, Sukanta Sen, Saswati Sarkar, Avijit Hazra, Radharaman De
OBJECTIVE: Epidermal dermatophyte infections most commonly manifest as tinea corporis or tinea cruris. Topical azole antifungals are commonly used in their treatment but literature suggests that most require twice-daily application and provide lower cure rates than the allylamine antifungal terbinafine. We conducted a head-to-head comparison of the effectiveness of the once-daily topical azole, sertaconazole, with terbinafine in these infections. MATERIALS AND METHODS: We conducted a randomized, observer-blind, parallel group study (Clinical Trial Registry India [CTRI]/2014/09/005029) with adult patients of either sex presenting with localized lesions...
November 2016: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/28065893/pan-azole-resistant-candida-tropicalis-carrying-homozygous-erg11-mutations-at-position-k143r-a-new-emerging-superbug
#8
Mariana I D S Xisto, Rita D F Caramalho, Débora A S Rocha, Antonio Ferreira-Pereira, Bettina Sartori, Eliana Barreto-Bergter, Maria L Junqueira, Cornelia Lass-Flörl, Michaela Lackner
OBJECTIVES: Candidaemia is a public health problem mainly in hospitalized individuals worldwide. In Brazil, Candida albicans is the most prevalent species that causes candidaemia, followed by Candida tropicalis and Candida parapsilosis Few data on the abundance of antifungal resistance are available for Latin America. METHODS: We analysed the frequency of azole and echinocandin resistance in Candida isolates (n = 75) collected between 2012 and 2014 at the University Hospital of Federal University of Juiz de Fora (Brazil)...
January 8, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28060519/development-of-a-chiral-dmap-catalyst-for-the-dynamic-kinetic-resolution-of-azole-hemiaminals
#9
Artis Kinens, Marcis Sejejs, Adam S Kamlet, David W Piotrowski, Edwin Vedejs, Edgars Suna
A new catalyst for the dynamic kinetic resolution of azole hemiaminals has been developed using late-stage structural modifications of the tert-leucinol-derived chiral subunit of DMAP species.
January 11, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28058254/special-issue-novel-antifungal-drug-discovery
#10
Maurizio Del Poeta
This Special Issue is designed to highlight the latest research and development on new antifungal compounds with mechanisms of action different from the ones of polyenes, azoles, and echinocandins. The papers presented here highlight new pathways and targets that could be exploited for the future development of new antifungal agents to be used alone or in combination with existing antifungals. A computational model for better predicting antifungal drug resistance is also presented.
2016: Journal of Fungi (Basel, Switzerland)
https://www.readbyqxmd.com/read/28057172/substrate-specificity-of-human-cytochrome-p450-cyp-2c-subfamily-and-effect-of-azole-antifungal-agents-on-cyp2c8
#11
Toshiro Niwa, Yurie Imagawa
PURPOSE: The metabolic activities of aminopyrine N-demethylation and tolbutamide methylhydroxylation by the human hepatic cytochrome P450 (P450 or CYP) 2C subfamily were compared and the effects of azole antifungal agent on the drug-metabolizing activity of CYP2C8 were investigated. METHODS: Aminopyrine N-demethylation and tolbutamide methylhydroxylation by CYP2C8, CYP2C9, and CYP2C19 were determined by the previous reported methods. The effects of five azole antifungal agents, fluconazole, itraconazole, ketoconazole, miconazole, and voriconazole, on the aminopyrine N-demethylation activity by CYP2C8 were investigated...
October 2016: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28052140/a-novel-zn2-cys6-transcription-factor-atrr-plays-a-key-role-in-an-azole-resistance-mechanism-of-aspergillus-fumigatus-by-co-regulating-cyp51a-and-cdr1b-expressions
#12
Daisuke Hagiwara, Daisuke Miura, Kiminori Shimizu, Sanjoy Paul, Ayumi Ohba, Tohru Gonoi, Akira Watanabe, Katsuhiko Kamei, Takahiro Shintani, W Scott Moye-Rowley, Susumu Kawamoto, Katsuya Gomi
Successful treatment of aspergillosis caused by Aspergillus fumigatus is threatened by an increasing incidence of drug resistance. This situation is further complicated by the finding that strains resistant to azoles, the major antifungal drugs for aspergillosis, have been widely disseminated across the globe. To elucidate mechanisms underlying azole resistance, we identified a novel transcription factor that is required for normal azole resistance in Aspergillus fungi including A. fumigatus, Aspergillus oryzae, and Aspergillus nidulans...
January 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28050634/damage-resistance-protein-dap-contributes-to-azole-resistance-in-a-sterol-regulatory-element-binding-protein-srba-dependent-way
#13
Jinxing Song, Pengfei Zhai, Ling Lu
The targeting of stress-response regulators has emerged as a powerful strategy to enhance azole drug efficacy and to abrogate azole drug resistance. Previously, we reported that a damage resistance protein (Dap) family, composed of DapA, DapB, and DapC, could respond to azole stress stimuli in Aspergillus fumigatus, although the exact response mechanisms remain unknown. In this study, RNA-seq analysis found that a total of 180 genes are induced by azole in a dapA-dependent manner. These genes are involved in oxidation-reduction, metabolic processes, and transmembrane transport...
January 3, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28045862/comparing-azole-plasma-trough-levels-in-lung-transplant-recipients-percentage-of-therapeutic-levels-and-intra-patient-variability
#14
Daniela Stelzer, Alexandra Weber, Franziska Ihle, Sandhya Matthes, Felix Ceelen, Gregor Zimmermann, Nikolaus Kneidinger, Rene Schramm, Hauke Winter, Michael Zoller, Michael Vogeser, Juergen Behr, Claus Neurohr
BACKGROUND: This study compared therapeutic azole plasma trough levels (APL) of the azole antimycotics itraconazole (ITR), voriconazole (VOR), and posaconazole (POS) in lung transplant recipients and analyzed the influencing factors. In addition, intra-patient variability for each azole was determined. METHODS: From July 2012 to July 2015, 806 APL of ITR, VOR, POS liquid (POS-Liq), and POS tablets (POS-Tab) were measured in 173 patients of the Munich Lung Transplantation (LTx) Program...
December 29, 2016: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28031205/in-vitro-activity-of-posaconazole-against-talaromyces-marneffei-by-broth-microdilution-and-etest-methods-comparison-to-itraconazole-voriconazole-and-anidulafungin
#15
Susanna K P Lau, George C S Lo, Clare S K Lam, Wang-Ngai Chow, Antonio H Y Ngan, Alan K L Wu, Dominic N C Tsang, Cindy W S Tse, Tak-Lun Que, Bone S F Tang, Patrick C Y Woo
We determined the susceptibilities of 57 Talaromyces marneffei strains to anidulafungin, itraconazole, voriconazole and posaconazole, with MICs of 2-8, 0.002-0.004, 0.016-0.063 and 0.001-0.002 μg/ml by broth microdilution, and >32, ≤0.002-0.008, ≤0.002-0.008 and ≤0.002 μg/ml by Etest respectively at yeast phase; while MICs at mycelial phase for anidulafungin and posaconazole were 1-2 and 0.004-0.063 μg/ml respectively. The results suggest promising activities of posaconazole. Etest can be used for testing of azoles against T...
December 28, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28028508/effects-of-aspirin-as-an-anti-inflammatory-drug-on-azole-resistant-candida-glabrata-in-vitro
#16
Sanaz Goodarzi, Seyyed Amin Ayatollahi Mousavi, Somayeh Sharifynia, Azar Berahmeh, Sassan Rezaie
No abstract text is available yet for this article.
November 2016: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28028453/identification-and-characterization-of-daldinia-eschscholtzii-isolated-from-skin-scrapings-nails-and-blood
#17
Kee Peng Ng, Chai Ling Chan, Su Mei Yew, Siok Koon Yeo, Yue Fen Toh, Hong Keat Looi, Shiang Ling Na, Kok Wei Lee, Wai-Yan Yee, Chee Sian Kuan
BACKGROUND: Daldinia eschscholtzii is a filamentous wood-inhabiting endophyte commonly found in woody plants. Here, we report the identification and characterization of nine D. eschscholtzii isolates from skin scrapings, nail clippings, and blood. METHODS: The nine isolates were identified based on colony morphology, light microscopy, and internal transcribed spacer (ITS)-based phylogeny. In vitro antifungal susceptibility of the fungal isolates was evaluated by the Etest to determine the minimum inhibitory concentration (MIC)...
2016: PeerJ
https://www.readbyqxmd.com/read/28024337/universal-readers-based-on-hydrogen-bonding-or-%C3%AF-%C3%AF-stacking-for-identification-of-dna-nucleotides-in-electron-tunnel-junctions
#18
Sovan Biswas, Suman Sen, JongOne Im, Sudipta Biswas, Predrag Krstic, Brian Ashcroft, Chad Borges, Yanan Zhao, Stuart Lindsay, Peiming Zhang
A reader molecule, which recognizes all the naturally occurring nucleobases in an electron tunnel junction, is required for sequencing DNA by a recognition tunneling (RT) technique, referred to as a universal reader. In the present study, we have designed a series of heterocyclic carboxamides based on hydrogen bonding and a large-sized pyrene ring based on a π-π stacking interaction as universal reader candidates. Each of these compounds was synthesized to bear a thiolated linker for attachment to metal electrodes and examined for their interactions with naturally occurring DNA nucleosides and nucleotides by (1)H NMR, ESI-MS, computational calculations, and surface plasmon resonance...
December 27, 2016: ACS Nano
https://www.readbyqxmd.com/read/28017860/in-vitro-antileishmanial-activity-of-novel-azoles-3-imidazolylflavanones-against-promastigote-and-amastigote-stages-of-leishmania-major
#19
Azar Shokri, Saeed Emami, Mahdi Fakhar, Saeed Hosseini Teshnizi, Masoud Keighobadi
Leishmaniasis is a protozoan infectious disease widely distributed all around the world. First line drugs including antimoniales are insufficient due to resistance in endemic areas and high toxicity. Azole antifungals like ketoconazole (KCZ) are also used as antileishmanial agents for several decades. In the present study, we evaluated in vitro antileishmanial effects of new azole antifungals namely 3-imidazolylflavanones (IFs) and their oximes (IFOs) against Leishmania major (L. major) parasites. The obtained results showed remarkable effect of our compounds on promastigote and amastigote stages of L...
December 23, 2016: Acta Tropica
https://www.readbyqxmd.com/read/28017128/role-of-azoles-in-cancer-prevention-and-treatment-present-and-future-perspectives
#20
Khurshid Ahmad, Mohd Kalim A Khan, Mohammad Hassan Baig, Mohd Imran, Girish Kumar Gupta
Cancer has gradually become one of the leading causes of death worldwide. The incidence of cancer among the population worldwide has increased in an alarming way over the last 2 decades, primarily due to an increasing population of immune-compromised patients and the continuing rise in anti-cancer drug resistance. Azole found privileged structure in medicinal chemistry and pharmaceutical industry and also found very effective against a number of biological targets including antioxidant; antimicrobial, antihelmintic, anticancer, antiviral, anti-parasitic, anti-inflammatory, anti-HIV, and antihypertensive activities...
December 21, 2016: Anti-cancer Agents in Medicinal Chemistry
keyword
keyword
69463
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"