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https://www.readbyqxmd.com/read/29333407/the-limited-role-of-serum-galactomannan-assay-in-screening-for-invasive-pulmonary-aspergillosis-in-allogeneic-stem-cell-transplantation-recipients-on-micafungin-prophylaxis-a-retrospective-study
#1
Ryul Kim, Youngil Koh, Dong-Yeop Shin, Pyoeng Gyun Choe, Nam Joong Kim, Sung-Soo Yoon, Myoung-Don Oh, Wan Beom Park, Inho Kim
Background: We evaluated the outcomes of serum galactomannan (GM) assay for the screening of invasive pulmonary aspergillosis (IPA) in allogeneic hematopoietic stem cell transplantation (alloHSCT) recipients while on primary antifungal prophylaxis (PAP). Methods: This study included patients with hematologic disorders who underwent alloHSCT from January 2013 to November 2015. Patients received routine PAP with fluconazole before 2014 and micafungin after 2014; serum GM tests were performed and retrospectively analyzed...
December 2017: Blood Research
https://www.readbyqxmd.com/read/29332258/photodynamic-antimicrobial-chemotherapy-pact-using-toluidine-blue-inhibits-both-growth-and-biofilm-formation-by-candida-krusei
#2
Bruna Graziele Marques da Silva, Moisés Lopes Carvalho, Isabela Bueno Rosseti, Stella Zamuner, Maricilia Silva Costa
Among non-albicans Candida species, the opportunistic pathogen Candida krusei emerges because of the high mortality related to infections produced by this yeast. The Candida krusei is an opportunistic pathogen presenting an intrinsic resistance to fluconazol. In spite of the reduced number of infections produced by C. krusei, its occurrence is increasing in some groups of patients submitted to the use of fluconazol for prophylaxis. Photodynamic antimicrobial chemotherapy (PACT) is a potential antimicrobial therapy that combines visible light and a nontoxic dye, known as a photosensitizer, producing reactive oxygen species (ROS) that can kill the treated cells...
January 13, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29327953/multicentric-cryptococcosis-in-a-congo-african-grey-parrot-psittacus-erithacus-erithacus
#3
Raina S K Schunk, Nicholas E Sitinas, Katherine E Quesenberry, Jessica L Grodio
An approximately 10-year-old, female Congo African grey parrot ( Psittacus erithacus erithacus) developed progressive, unilateral exophthalmos and buphthalmos. Survey radiographs revealed a large, coelomic, soft tissue mass, which was confirmed on computed tomography scan. Aspirates of both the contents of the buphthalmic globe and coelomic mass were consistent with Cryptococcus species. Initial results were later confirmed with serum antigen latex agglutination and polymerase chain reaction testing, and the organism was then identified as Cryptococcus neoformans with DNA sequencing...
December 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29325916/proanthocyanidin-polymeric-tannins-from-stryphnodendron-adstringens-are-effective-against-fluconazole-resistant-candida-spp-and-treat-vaginal-candidiasis
#4
Aline Luiza Duarte de Freitas, Vanessa Kaplum, Diego Conrado Pereira Rossi, Leandro Buffoni Roque da Silva, Márcia de Souza Carvalho Melhem, Carlos Pelleschi Taborda, João Carlos Palazzo de Mello, Celso Vataru Nakamura, Kelly Ishida
ETHNOPHARMACOLOGICAL RELEVANCE: The stem bark of Stryphnodendron adstringens (Mart.) Coville is popularly used as anti-inflammatory, astringent and in the treatment of wounds and vaginal infections. Several pharmacological activities have been scientifically proven by "in vitro" and "in vivo" experimental assays for antibacterial, antiviral, antiprotozoan, anti-inflammatory and antioxidant. AIM OF THE STUDY: We investigated whether proanthocyanidin polymeric tannins from the Stryphnodendron adstringens steam bark with antifungal activity against Candida albicans in vitro are also active against planktonic and biofilm cells of Candida non-albicans (CNA, including fluconazole-resistant isolates) and are capable of controlling Candida vaginitis in vivo...
January 8, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29325218/equal-candida-score-an-ecmm-score-derived-from-current-guidelines-to-measure-quality-of-clinical-candidemia-management
#5
Sibylle C Mellinghoff, Martin Hoenigl, Philipp Koehler, Anil Kumar, Katrien Lagrou, Cornelia Lass-Flörl, Jacques F Meis, Vidya Menon, Riina Rautemaa-Richardson, Oliver A Cornely
Candida species frequently cause blood stream infections and are reported to be the third to tenth most commonly isolated pathogens. Guidelines and standardized treatment algorithms provided by professional organisations aim to facilitate decision-making regarding diagnosis, management, and treatment of candidemia. In routine clinical practise, however, it may be challenging to comply with these guidelines. The reasons include lack of familiarity or feasibility to adherence, but also their length and complexity...
January 11, 2018: Mycoses
https://www.readbyqxmd.com/read/29325167/a-multicentre-study-of-antifungal-susceptibility-patterns-among-350-candida-auris-isolates-2009-17-in-india-role-of-the-erg11-and-fks1-genes-in-azole-and-echinocandin-resistance
#6
Anuradha Chowdhary, Anupam Prakash, Cheshta Sharma, Milena Kordalewska, Anil Kumar, Smita Sarma, Bansidhar Tarai, Ashutosh Singh, Gargi Upadhyaya, Shalini Upadhyay, Priyanka Yadav, Pradeep K Singh, Vikas Khillan, Neelam Sachdeva, David S Perlin, Jacques F Meis
Background: Candida auris has emerged globally as an MDR nosocomial pathogen in ICU patients. Objectives: We studied the antifungal susceptibility of C. auris isolates (n = 350) from 10 hospitals in India collected over a period of 8 years. To investigate azole resistance, ERG11 gene sequencing and expression profiling was conducted. In addition, echinocandin resistance linked to mutations in the C. auris FKS1 gene was analysed. Methods: CLSI antifungal susceptibility testing of six azoles, amphotericin B, three echinocandins, terbinafine, 5-flucytosine and nystatin was conducted...
January 9, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29324336/new-1-5-and-2-5-disubstituted-tetrazoles-dependent-activity-towards-surface-barrier-of-candida-albicans
#7
Monika Staniszewska, Małgorzata Gizińska, Ewa Mikulak, Klaudia Adamus, Mirosława Koronkiewicz, Edyta Łukowska-Chojnacka
A series of novel tetrazole derivatives was synthetized using N-alkylation or Michael-type addition reactions, and screened for their fungistatic potential against Candida albicans (the lack of endpoint = 100%). Among them, the selected compounds 2d, 4b, and 6a differing in substituents at the tetrazole ring were non-toxic to Galleria mellonella larvae in vivo and exerted slight toxicity against Caco-2 in vitro (CC50 at 256 μg/mL). An antagonistic effect of tetrazole derivatives 2d, 4b, and 6a respectively in combination with Fluconazole was shown using the checker board and colorimetric methods (fractional inhibitory concentration indexes FICIs >1)...
December 30, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29319442/clinical-signs-treatment-and-prognostic-factors-for-dogs-with-histoplasmosis
#8
Allison G Wilson, Kate S KuKanich, Andrew S Hanzlicek, Mark E Payton
OBJECTIVE To determine the clinical manifestations of histoplasmosis in a large sample of dogs, compare outcomes achieved with fluconazole versus itraconazole, and identify variables available at the time of diagnosis with prognostic value. DESIGN Retrospective case series with nested cohort study. ANIMALS 79 dogs with confirmed histoplasmosis evaluated at 2 veterinary teaching hospitals from 1999 through 2015. PROCEDURES Medical records were reviewed and data extracted regarding clinical signs at evaluation, physical examination findings, clinical laboratory values, other diagnostic test results, treatments, and outcomes...
January 15, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29311198/fungal-peritonitis-caused-by-rhodotorula-mucilaginosa-in-a-capd-patient-treated-with-liposomal-amphotericin-b-a-case-report-and-literature-review
#9
Frédéric Franconieri, Julie Bonhomme, Aline Doriot, Cécile Bonnamy, Maxence Ficheux, Thierry Lobbedez, Clémence Béchade
Rhodotorula mucilaginosa is a ubiquitous yeast that may cause serious peritoneal dialysis (PD) infections. A 70-year-old man receiving continuous ambulatory peritoneal dialysis (CAPD) for 6 months presented with a PD infection caused by Rhodotorula mucilaginosa The patient was treated with intravenous liposomal amphotericin B. His peritoneal catheter was simultaneously removed and reinserted. To date, only 10 cases of Rhodotorula CAPD infections have been reported. Catheters, corticoids, cancer, and previous antibiotic therapy were the main risk factors for these infections...
January 2018: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/29311065/in-vitro-and-in-vivo-evaluation-of-the-antifungal-activity-of-apx001a-apx001-against-candida-auris
#10
Christopher L Hager, Emily L Larkin, Lisa Long, Fatima Z Abidi, Karen J Shaw, Mahmoud A Ghannoum
Candida auris is an emerging multidrug-resistant yeast that has been responsible for invasive infections associated with high morbidity and mortality. C. auris strains often demonstrate high fluconazole and amphotericin B minimum inhibitory concentration values, and some strains are resistant to all 3 major antifungal classes. Here we evaluated the susceptibility of 16 C. auris clinical strains, isolated from a wide geographical area, to 10 antifungal agents including APX001A, a novel agent that inhibits the fungal protein Gwt1 (GPI-anchored wall transfer protein 1)...
January 8, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29311063/mutant-prevention-concentration-and-mutant-selection-window-of-micafungin-and-anidulafungin-in-clinical-candida-glabrata-isolates
#11
María Ángeles Bordallo-Cardona, Laura Judith Marcos-Zambrano, Carlos Sánchez-Carrillo, Elia Gómez G de la Pedrosa, Rafael Cantón, Emilio Bouza, Pilar Escribano, Jesús Guinea
Background: We report the mutant prevention concentration (MPC) and mutant selection window (MSW) for micafungin and anidulafungin administered to treat Candida glabrata We also determine the mutation frequency.Methods: We studied 20 echinocandin-susceptible, fluconazole-intermediate, and FKS wild-type C. glabrata isolates. Adjusted inocula were stroked directly onto Sabouraud agar plates containing different concentrations of micafungin or anidulafungin and visually inspected daily for up to 5 days of incubation...
January 8, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29311061/enhanced-efflux-pump-activity-in-old-candida-glabrata
#12
Somanon Bhattacharya, Bettina C Fries
The effect of replicative aging on antifungal resistance in Candida glabrata was investigated. Our studies demonstrate significantly increased transcription of ABC transporters as well as efflux pump activity in old compared to young C. glabrata cells of a fluconazole sensitive and resistant strain. In addition, higher tolerance to killing by micafungin and amphotericin B was noted and is associated with higher transcription of glucan synthase gene FKS1 and lower ergosterol content in older cells.
January 8, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29310582/identification-of-uncommon-oral-yeasts-from-cancer-patients-by-maldi-tof-mass-spectrometry
#13
Narges Aslani, Ghasem Janbabaei, Mahdi Abastabar, Jacques F Meis, Mahasti Babaeian, Sadegh Khodavaisy, Teun Boekhout, Hamid Badali
BACKGROUND: Opportunistic infections due to Candida species occur frequently in cancer patients because of their inherent immunosuppression. The aim of the present study was to investigate the epidemiology of yeast species from the oral cavity of patients during treatment for oncological and haematological malignancies. METHODS: MALDI-TOF was performed to identify yeasts isolated from the oral cavity of 350 cancer patients. Moreover, antifungal susceptibility testing was performed in according to CLSI guidelines (M27-A3)...
January 8, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29304768/long-term-lactobacillus-rhamnosus-bmx-54-application-to-restore-a-balanced-vaginal-ecosystem-a-promising-solution-against-hpv-infection
#14
Ettore Palma, Nadia Recine, Lavinia Domenici, Margherita Giorgini, Alessandra Pierangeli, Pierluigi Benedetti Panici
BACKGROUND: Over recent years, a growing interest has developed in microbiota and in the concept of maintaining a special balance between Lactobacillus and other bacteria species in order to promote women's well-being. The aim of our study was to confirm that vaginal Lactobacilli long-lasting implementation in women with HPV-infections and concomitant bacterial vaginosis or vaginitis might be able to help in solving the viral infection, by re-establishing the original eubiosis. METHODS: A total of 117 women affected by bacterial vaginosis or vaginitis with concomitant HPV-infections were enrolled at Department of Gynecological Obstetrics and Urological Sciences, La Sapienza University, Rome, Italy between February 2015 and March 2016...
January 5, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29304214/biofilms-and-beyond-expanding-echinocandin-utility
#15
Emily L Larkin, Sharvari Dharmaiah, Mahmoud A Ghannoum
Echinocandins have been in use for over 15 years, starting with the first approval in 2001. Current trends, such as increasing resistance to fluconazole and shifts toward non-albicans spp. of Candida, suggest a growing role for echinocandins, as reflected by recent (2016) updates to guidelines that recommend echinocandins as first-line treatment for candidaemia. The efficacy, tolerability, and safety of echinocandins and their target site of action (1,3-β-d-glucan synthesis) have prompted research into potential new uses, such as for treatment of biofilm infections, MDR Candida auris and dermatophytes...
January 1, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29304208/what-has-changed-in-the-treatment-of-invasive-candidiasis-a-look-at-the-past-10-years-and-ahead
#16
Matteo Bassetti, Elda Righi, Philippe Montravers, Oliver A Cornely
The treatment of invasive candidiasis has changed greatly in the past decade and must continue to evolve if we are to improve outcomes in this serious infection. A review of recent history may provide insights for the future. The morbidity and mortality of invasive candidiasis remain difficult to measure despite an obvious clinical burden. Current treatment guidelines now recommend echinocandins as first-line empirical treatment, with fluconazole as an acceptable alternative for selected patients, reflecting the efficacy demonstrated by echinocandins and increasing resistance observed with fluconazole...
January 1, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29304207/changes-in-the-epidemiological-landscape-of-invasive-candidiasis
#17
Frederic Lamoth, Shawn R Lockhart, Elizabeth L Berkow, Thierry Calandra
The epidemiology of invasive candidiasis has evolved in recent years, warranting a review of the changes and the implications for current and future diagnosis and treatment. The overall burden of invasive candidiasis remains high, particularly in the expanding populations of patients at risk of opportunistic infection, such as the elderly or immunosuppressed. Progressive shifts from Candida albicans to non-albicans Candida spp. have been observed globally. The recent emergence of novel, multiresistant species, such as Candida auris, amplifies the call for vigilance in detection and advances in treatment...
January 1, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29303621/cost-effectiveness-of-de-escalation-from-micafungin-versus-escalation-from-fluconazole-for-invasive-candidiasis-in-china
#18
Dechang Chen, Xianyao Wan, Eliza Kruger, Can Chen, Xiaomeng Yue, Liang Wang, Jiuhong Wu
AIMS: Guidelines on treating invasive candidiasis recommend initial treatment with a broad-spectrum echinocandin (e.g., micafungin); then switching to fluconazole if isolates prove sensitive (de-escalation strategy). This study aimed to evaluate the cost-effectiveness of de-escalation from micafungin versus escalation from fluconazole from a Chinese public payers perspective. MATERIALS AND METHODS: Cost-effectiveness was estimated using a decision analytic model, in which patients begin treatment with fluconazole 400 mg/day (escalation) or micafungin 100 mg/day (de-escalation)...
January 5, 2018: Journal of Medical Economics
https://www.readbyqxmd.com/read/29302625/quantitation-of-ergosterol-content-and-gene-expression-profile-of-erg11-gene-in-fluconazole-resistant-candida-albicans
#19
F Alizadeh, A Khodavandi, S Zalakian
Background and Purpose: The frequency of opportunistic fungal infections in immunocompromised patients, especially by Candida species, has sharply increased in the last few decades. The objective of this study was to analyse the ergosterol content and gene expression profiling of clinical isolates of fluconazole-resistant Candida albicans. Materials and Methods: Sixty clinical samples were identified and collected from immunocompromised patients, namely recurrent oral, vaginal, and cutaneous candidiasis, during 2015-16...
March 2017: Advances in Medical Mycology (Iran)
https://www.readbyqxmd.com/read/29299897/successful-treatment-of-protothecal-tenosynovitis-in-an-immunocompetent-patient-using-amphotericin-b-deoxycholate
#20
Ji Eun Kim, Tae Hoon Oh, Kyung Hwa Lee, Jong Hee Shin, Sook In Jung
Protothecosis is an uncommon human infection caused by achlorophyllic algae of the genus Prototheca, especially P. wickerhamii. The skin is the most frequently involved organ and cases of protothecal tenosynovitis are very rare. A 71-year-old woman without prior medical history except hypertension presented with painful swelling of her right hand that did not improve despite receiving antibiotic treatment. She underwent tenosynovectomy and drainage. Histopathologic examination revealed necrotizing granulomatous inflammation and numerous spherical or morula-like organisms with a spoked wheel appearance...
December 2017: Infection & Chemotherapy
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