نتایج جستجو برای: Azole

تعداد نتایج: 2213  

2008
Mehmet Akkurt Selvi Karaca Hasan Küçükbay Nihat Şireci Orhan Büyükgüngör

In the zwitterionic title compound, C(22)H(25)N(3)S, the benzimid-azole ring system makes a dihedral angle of 55.69 (11)° with the phenyl ring. In the crystal structure, inter- and intra-molecular C-H⋯S inter-actions occur.

Journal: :Antimicrobial agents and chemotherapy 1999
D Sanglard F Ischer D Calabrese P A Majcherczyk J Bille

The resistance mechanisms to azole antifungal agents were investigated in this study with two pairs of Candida glabrata clinical isolates recovered from two separate AIDS patients. The two pairs each contained a fluconazole-susceptible isolate and a fluconazole-resistant isolate, the latter with cross-resistance to itraconazole and ketoconazole. Since the accumulation of fluconazole and of anot...

Journal: :Antimicrobial agents and chemotherapy 2010
Eveline Snelders Anna Karawajczyk Gijs Schaftenaar Paul E Verweij Willem J G Melchers

Molecular studies have shown that the majority of azole resistance in Aspergillus fumigatus is associated with amino acid substitutions in the cyp51A gene. To obtain insight into azole resistance mutations, the cyp51A gene of 130 resistant and 76 susceptible A. fumigatus isolates was sequenced. Out of 130 azole-resistant isolates, 105 contained a tandem repeat of 34 bp in the promoter region an...

Journal: :acta medica iranica 0
shirin farahyar department of medical parasitology and mycology, school of medicine, iran university of medical sciences, tehran, iran. farideh zaini department of medical mycology and parasitology, school of public health, tehran university of medical sciences, tehran, iran. parivash kordbacheh department of medical mycology and parasitology, school of public health, tehran university of medical sciences, tehran, iran. sassan rezaie department of medical mycology and parasitology, school of public health, tehran university of medical sciences, tehran, iran. mehraban falahati department of medical parasitology and mycology, school of medicine, iran university of medical sciences, tehran, iran. mahin safara department of medical mycology and parasitology, school of public health, tehran university of medical sciences, tehran, iran.

acquired azole resistance in opportunistic fungi causes severe clinical problems in immunosuppressed individuals. this study investigated the molecular mechanisms of azole resistance in clinical isolates of candida glabrata . six unmatched strains were obtained from an epidemiological survey of candidiasis in immunocompromised hosts that included azole and amphotericin b susceptible and azole r...

2017
Jianhua Zhang Eveline Snelders Bas J Zwaan Sijmen E Schoustra Jacques F Meis Karin van Dijk Ferry Hagen Martha T van der Beek Greetje A Kampinga Jan Zoll Willem J G Melchers Paul E Verweij Alfons J M Debets

This study investigated the dynamics of Aspergillus fumigatus azole-resistant phenotypes in two compost heaps with contrasting azole exposures: azole free and azole exposed. After heat shock, to which sexual but not asexual spores are highly resistant, the azole-free compost yielded 98% (49/50) wild-type and 2% (1/50) azole-resistant isolates, whereas the azole-containing compost yielded 9% (4/...

2016
Sarah G. Whaley Elizabeth L. Berkow Jeffrey M. Rybak Andrew T. Nishimoto Katherine S. Barker P. David Rogers

Within the limited antifungal armamentarium, the azole antifungals are the most frequent class used to treat Candida infections. Azole antifungals such as fluconazole are often preferred treatment for many Candida infections as they are inexpensive, exhibit limited toxicity, and are available for oral administration. There is, however, extensive documentation of intrinsic and developed resistan...

Journal: :Journal of clinical microbiology 2015
Jakko van Ingen Henrich A L van der Lee Antonius J M M Rijs Eveline Snelders Willem J G Melchers Paul E Verweij

High-level pan-azole-resistant Aspergillus fumigatus was recovered from four patients with chronic lung disease. In one patient, the development of progressive resistance followed long-term azole therapy and switching between antifungal azoles. The high-level pan-azole-resistant phenotypes were not associated with a specific cyp51A gene mutation. New strategies that avoid the development of pro...

Journal: :Dalton transactions 2015
Paula Pla José M Junquera-Hernández Henk J Bolink Enrique Ortí

A theoretical density functional theory study has been performed on different families of cationic cyclometallated Ir(III) complexes with the general formula [Ir(C^N)2(N^N)](+) and azole-based ligands. The goal was to investigate the effect that the number and position of the nitrogen atoms of the azole ring have on the electronic structure and emission wavelength of the complex. The increase i...

Journal: :Journal of clinical microbiology 2016
Nathan P Wiederhold Veronica Garcia Gil Felipe Gutierrez Jonathan R Lindner Mohammad T Albataineh Dora I McCarthy Carmita Sanders Hongxin Fan Annette W Fothergill Deanna A Sutton

Azole resistance in Aspergillus fumigatus is an increasing problem. The TR34 L98H and TR46 Y121F T289A mutations that can occur in patients without previous azole exposure have been reported in Europe, Asia, the Middle East, Africa, and Australia. Here, we report the detection of both the TR34 L98H and TR46 Y121F T289A mutations in confirmed A. fumigatus isolates collected in institutions in th...

Journal: :Antimicrobial agents and chemotherapy 1998
H Wakabayashi S Abe S Teraguchi H Hayasawa H Yamaguchi

The effects of bovine lactoferrin (LF) or the LF-derived antimicrobial peptide lactoferricin B (LFcin B) on the growth of Candida albicans hyphae, including those of three azole-resistant strains, were investigated by a crystal violet staining method. The hyphae of two highly azole-resistant strains were more susceptible to inhibition by LF or LFcin B than the azole-susceptible strains tested. ...

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