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Invasive fungal infection

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https://www.readbyqxmd.com/read/28736936/invasive-fungal-infection-following-chemotherapy-for-acute-myeloid-leukaemia-experience-from-a-developing-country
#1
Anu Korula, Aby Abraham, Fouzia N Abubacker, Auro Viswabandya, Kavitha M Lakshmi, O C Abraham, Priscilla Rupali, George M Varghese, Joy S Michael, Alok Srivastava, Vikram Mathews, Biju George
The incidence of invasive fungal infections (IFI) is believed to be higher in patients with acute myeloid leukaemia (AML) undergoing chemotherapy in non-HEPA-filtered rooms. The aim of this study is to review the incidence of IFI in a large cohort of patients with AML treated at a single centre in India. Two hundred and twenty-two patients with AML treated with either induction chemotherapy or salvage chemotherapy between 2008 and 2013 were studied retrospectively. IFI was defined as per the revised EORTC-MSG criteria...
July 23, 2017: Mycoses
https://www.readbyqxmd.com/read/28736021/infectious-complications-and-multidrug-resistant-bacteria-in-patients-with-hematopoietic-stem-cell-transplantation-in-the-first-12-months-after-transplant
#2
A César-Arce, P Volkow-Fernández, L M Valero-Saldaña, B Acosta-Maldonado, D Vilar-Compte, P Cornejo-Juárez
BACKGROUND: Hematopoietic stem cell transplantation (HSCT) has been used as treatment in different hematologic and solid malignancies. The aim of this study was to describe the frequency of infectious complications, microbiology, and outcome in patients undergoing HSCT in Mexico during the pre-engraftment period and the impact on mortality rates at 12 months. METHODS: We conducted a retrospective study of all hematologic malignancies that received HSCT from January 2009 and December 2014, at an oncology reference center...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28734773/epico-4-0-total-quality-in-the-management-of-invasive-candidiasis-in-critically-ill-patients-by-analysing-the-integrated-process
#3
Rafael Zaragoza, Ricard Ferrer, Pedro Llinares, Emilio Maseda, Alejandro Rodríguez, Santiago Grau, Guillermo Quindós
BACKGROUND: A high quality integrated process in the clinical setting of non-neutropenic critically ill patients at risk for invasive candidiasis is a necessary tool to improve the management of these patients. AIMS: To identify the key points on invasive candidiasis in order to develop a set of recommendations with a high level of consensus required for the creation of a total quality integrated process for the management of non-neutropenic critically ill patients at risk of invasive candidiasis...
July 19, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28731916/central-nervous-system-fungal-infection-and-acute-lymphoblastic-leukemia-in-children-what-is-the-optimal-duration-of-antifungal-therapy
#4
Harsha P Lashkari, Neil Fernandes, Kishan Alva, Santosh Rai
Invasive fungal infections are rare in children with acute lymphoblastic leukemia. It compromises the antileukemia therapy should it happen. Central nervous system fungal infections carry high mortality. We here report the case of a 6.5-year-old girl who developed multiple central nervous system fungal abscesses possibly due to Aspergillus infection during induction therapy for acute lymphoblastic leukemia who has been successfully managed without compromising antileukemia therapy. She has been receiving antifungal therapy and maintenance chemotherapy for 20 months from diagnosis...
July 20, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28731650/efficacy-and-safety-of-caspofungin-in-children-systematic-review-and-meta-analysis
#5
María T Rosanova, David Bes, Pedro Serrano Aguilar, Leticia Cuellar Pompa, Norma Sberna, Roberto Lede
INTRODUCTION: Invasive fungal infections are a significant cause of morbidity and mortality in children. Caspofungin is an echinocandin used as an alternative treatment in the prevention and/or treatment of certain invasive fungal infections in children, although compared to the standard treatment there is little evidence on its efficacy and safety. OBJETIVES: To evaluate the efficacy and safety of caspofungin compared with other antifungal drugs for the prevention and/or treatment of invasive fungal infections in children...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28730644/fungiscope-%C3%A2-global-emerging-fungal-infection-registry
#6
Danila Seidel, Luisa A Durán Graeff, Maria J G T Vehreschild, Hilmar Wisplinghoff, Maren Ziegler, J Janne Vehreschild, Blasius Liss, Axel Hamprecht, Philipp Köhler, Zdenek Racil, Nikolay Klimko, Donald C Sheppard, Raoul Herbrecht, Anuradha Chowdhary, Oliver A Cornely, FungiScope Group
Rare invasive fungal diseases (IFD) are challenging for the treating physicians because of their unspecific clinical presentation, as well as the lack of standardised diagnostic and effective treatment strategies. Late onset of treatment and inappropriate medication is associated with high mortality, thus, urging the need for a better understanding of these diseases. The purpose of FungiScope(™) is to continuously collect clinical information and specimens to improve the knowledge on epidemiology and eventually improve patient management of these orphan diseases...
August 2017: Mycoses
https://www.readbyqxmd.com/read/28720735/a-nonredundant-phosphopantetheinyl-transferase-ppta-is-a-novel-antifungal-target-that-directs-secondary-metabolite-siderophore-and-lysine-biosynthesis-in-aspergillus-fumigatus-and-is-critical-for-pathogenicity
#7
Anna Johns, Daniel H Scharf, Fabio Gsaller, Hella Schmidt, Thorsten Heinekamp, Maria Straßburger, Jason D Oliver, Mike Birch, Nicola Beckmann, Katharine S Dobb, Jane Gilsenan, Bharatkumar Rash, Elaine Bignell, Axel A Brakhage, Michael J Bromley
Secondary metabolites are key mediators of virulence for many pathogens. Aspergillus fumigatus produces a vast array of these bioactive molecules, the biosynthesis of which is catalyzed by nonribosomal peptide synthetases (NRPSs) or polyketide synthases (PKSs). Both NRPSs and PKSs harbor carrier domains that are primed for acceptance of secondary metabolic building blocks by a phosphopantetheinyl transferase (P-pant). The A. fumigatus P-pant PptA has been shown to prime the putative NRPS Pes1 in vitro and has an independent role in lysine biosynthesis; however, its role in global secondary metabolism and its impact on virulence has not been described...
July 18, 2017: MBio
https://www.readbyqxmd.com/read/28713338/investigation-of-och1-in-the-virulence-of-candida-parapsilosis-using-a-new-neonatal-mouse-model
#8
Katalin Csonka, Máté Vadovics, Annamária Marton, Csaba Vágvölgyi, Erik Zajta, Adél Tóth, Renáta Tóth, Csaba Vizler, László Tiszlavicz, Héctor M Mora-Montes, Attila Gácser
Candida parapsilosis is an opportunistic human fungal pathogen that poses a serious threat to low birth weight neonates, particularly at intensive care units. In premature infants, the distinct immune responses to Candida infections are not well understood. Although several in vivo models exist to study systemic candidiasis, only a few are available to investigate dissemination in newborns. In addition, the majority of related studies apply intraperitoneal infection rather than intravenous inoculation of murine infants that may be less efficient when studying systemic invasion...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28707783/aggressive-necrotizing-pseudomonal-sinonasal-infections
#9
Edward C Kuan, Bobby A Tajudeen, Kevin C Welch, Rakesh K Chandra, Ben J Glasgow, Jeffrey D Suh
BACKGROUND: Pseudomonas aeruginosa is a gram-negative bacterium frequently implicated in recalcitrant sinonasal infections, especially in immunocompromised hosts. We report 6 cases of rapidly progressive pseudomonal acute rhinosinusitis producing tissue necrosis and, in certain cases, cranial nerve palsies. METHODS: Retrospective review of 6 patients with aggressive necrotizing sinonasal infections treated at 4 tertiary academic medical centers with sinonasal cultures growing P...
July 14, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28705753/invasive-fungal-infections-secondary-to-traumatic-injury
#10
REVIEW
Ryan Kronen, Stephen Y Liang, Grant Bochicchio, Kelly Bochicchio, William G Powderly, Andrej Spec
Invasive fungal infection (IFI) is a rare but serious complication of traumatic injury. The purpose of this article is to review the epidemiology, natural history, mycology, risk factors, diagnosis, treatment, and outcomes associated with post-traumatic IFI in military and civilian populations. The epidemiology of post-traumatic IFI is poorly characterized, but incidence appears to be rising. Patients often suffer from severe injuries and require extensive medical interventions. Fungi belonging to the order Mucorales are responsible for most post-traumatic IFI in both civilian and military populations...
July 10, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28705685/-fungal-sinusitis
#11
REVIEW
E Lafont, C Aguilar, P Vironneau, R Kania, A Alanio, S Poirée, O Lortholary, F Lanternier
Although sinusitis affects about 20 % of the population, fungal sinusitis is rare. Aspergillus sp. are most frequently implicated. Fungal sinusitis represents a wide spectrum of disorders, including acute or chronic and invasive or non-invasive forms. Invasive fungal sinusitis may develop in an immunocompromised or diabetic patient, whereas non-invasive fungal sinusitis should be considered in a chronic situation, resistant to antibiotics in immunocompetent patients. Allergic fungal sinusitis is related to hypersensitivity of the host to the fungus...
July 10, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28704463/a-novel-non-invasive-diagnostic-sampling-technique-for-cutaneous-leishmaniasis
#12
Yasaman Taslimi, Pardis Sadeghipour, Sima Habibzadeh, Vahid Mashayekhi, Hossien Mortazavi, Ingrid Müller, Majella E Lane, Pascale Kropf, Sima Rafati
Accurate diagnosis of cutaneous leishmaniasis (CL) is important for chemotherapy and epidemiological studies. Common approaches for Leishmania detection involve the invasive collection of specimens for direct identification of amastigotes by microscopy and the culturing of promastigotes from infected tissues. Although these techniques are highly specific, they require highly skilled health workers and have the inherent risks of all invasive procedures, such as pain and risk of bacterial and fungal super-infection...
July 13, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28702763/pharmacokinetics-of-antifungal-drugs-practical-implications-for-optimized-treatment-of-patients
#13
REVIEW
Romuald Bellmann, Piotr Smuszkiewicz
INTRODUCTION: Because of the high mortality of invasive fungal infections (IFIs), appropriate exposure to antifungals appears to be crucial for therapeutic efficacy and safety. MATERIALS AND METHODS: This review summarises published pharmacokinetic data on systemically administered antifungals focusing on co-morbidities, target-site penetration, and combination antifungal therapy. CONCLUSIONS AND DISCUSSION: Amphotericin B is eliminated unchanged via urine and faeces...
July 12, 2017: Infection
https://www.readbyqxmd.com/read/28702025/cellular-and-molecular-defects-underlying-invasive-fungal-infections-revelations-from-endemic-mycoses
#14
REVIEW
Pamela P Lee, Yu-Lung Lau
The global burden of fungal diseases has been increasing, as a result of the expanding number of susceptible individuals including people living with human immunodeficiency virus (HIV), hematopoietic stem cell or organ transplant recipients, patients with malignancies or immunological conditions receiving immunosuppressive treatment, premature neonates, and the elderly. Opportunistic fungal pathogens such as Aspergillus, Candida, Cryptococcus, Rhizopus, and Pneumocystis jiroveci are distributed worldwide and constitute the majority of invasive fungal infections (IFIs)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28700646/efficacy-and-safety-of-micafungin-versus-extensive-azoles-in-the-prevention-and-treatment-of-invasive-fungal-infections-for-neutropenia-patients-with-hematological-malignancies-a-meta-analysis-of-randomized-controlled-trials
#15
Cho-Hao Lee, Jung-Chung Lin, Ching-Liang Ho, Min Sun, Wel-Ting Yen, Chin Lin
BACKGROUND: Current studies that compare the efficacy and safety of micafungin (MCFG) with that of triazoles for the prophylaxis and treatment of invasive fungal infections (IFIs) demonstrate a lack of sufficient evidence and yield conflicting results. To compare the efficacy and safety of MCFG and triazoles in the prevention and treatment of IFIs, we conducted a meta-analysis and trial sequential analysis (TSA). METHODS: For the meta-analysis, we systematically searched the databases of PubMed, Embase and Cochrane Central Register of Controlled Trials and relevant database articles for randomized controlled studies published through November 2016...
2017: PloS One
https://www.readbyqxmd.com/read/28698667/phylogenetic-analysis-reveals-two-genotypes-of-the-emerging-fungus-mucor-indicus-an-opportunistic-human-pathogen-in-immunocompromised-patients
#16
Saad J Taj-Aldeen, Muna Almaslamani, Bart Theelen, Teun Boekhout
Mucormycosis is a rare fungal infection caused by Mucor indicus. Phylogenetic analysis of many M. indicus isolates, mainly sampled from different clinical and environmental specimens collected worldwide, revealed two genotypes, I and II, based on ITS and D1/D2 LSU rDNA sequences. A retrospective review of the literature revealed 13 cases. Eight (76.9%) patients had disseminated infections, and the overall mortality rate was 30.7%. A pulmonary infection caused by M. indicus genotype I in a liver transplant recipient was disseminated to include the skin and was successfully treated with liposomal amphotericin B and aggressive surgery...
July 12, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28694566/antifungal-resistance-metabolic-routes-as-drug-targets-and-new-antifungal-agents-an-overview-about-endemic-dimorphic-fungi
#17
REVIEW
Juliana Alves Parente-Rocha, Alexandre Melo Bailão, André Correa Amaral, Carlos Pelleschi Taborda, Juliano Domiraci Paccez, Clayton Luiz Borges, Maristela Pereira
Diseases caused by fungi can occur in healthy people, but immunocompromised patients are the major risk group for invasive fungal infections. Cases of fungal resistance and the difficulty of treatment make fungal infections a public health problem. This review explores mechanisms used by fungi to promote fungal resistance, such as the mutation or overexpression of drug targets, efflux and degradation systems, and pleiotropic drug responses. Alternative novel drug targets have been investigated; these include metabolic routes used by fungi during infection, such as trehalose and amino acid metabolism and mitochondrial proteins...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28694233/comparing-the-safety-and-efficacy-of-voriconazole-versus-posaconazole-in-the-prevention-of-invasive-fungal-infections-in-high-risk-patients-with-hematological-malignancies
#18
Ray Hachem, Andrew Assaf, Yazan Numan, Pankil Shah, Ying Jiang, Anne-Marie Chaftari, Issam I Raad
Invasive fungal infection (IFI) is a leading cause of morbidity and mortality in immunocompromised cancer patients. New triazole-based antifungal agents have been recommended for IFI prophylaxis in these patients. This retrospective study compared the safety and efficacy of voriconazole and posaconazole as prophylaxis in patients with hematological malignancies (HM), who were admitted to The University of Texas MD Anderson Cancer Center between January 2014 and August 2015, and who were started on single antifungal prophylaxis consisting of either voriconazole or posaconazole...
July 7, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28694096/a-role-for-random-humidity-dependent-epiphytic-growth-prior-to-invasion-of-wheat-by-zymoseptoria-tritici
#19
Helen N Fones, Chris J Eyles, William Kay, Josh Cowper, Sarah J Gurr
Zymoseptoria tritici causes Septoria leaf blotch of wheat. The prevailing paradigm of the Z. tritici-wheat interaction assumes fungal ingress through stomata within 24-48h, followed by days of symptomless infection. This is extrapolated from studies testing the mode of fungal ingress under optimal infection conditions. Here, we explicitly assess the timing of entry, using GFP-tagged Z. tritici. We show that early entry is comparatively rare, and extended epiphytic growth possible. We test the hypotheses that our data diverge from earlier studies due to: i...
July 8, 2017: Fungal Genetics and Biology: FG & B
https://www.readbyqxmd.com/read/28689871/cd101-a-long-acting-echinocandin-and-comparator-antifungal-agents-tested-against-a-global-collection-of-invasive-fungal-isolates-in-the-sentry-2015-antifungal-surveillance-program
#20
Michael A Pfaller, Shawn A Messer, Paul R Rhomberg, Mariana Castanheira
CD101 is a novel echinocandin with exceptional chemical stability and long-acting pharmacokinetics. The activity of CD101 and comparators was evaluated using CLSI broth microdilution methods against 713 invasive fungal isolates, including 589 Candida spp. (6 species), 14 C. neoformans, 97 A. fumigatus and 13 A. flavus species complex collected worldwide during 2015. All C. tropicalis, C. krusei and C. dubliniensis, 99.7% of C. albicans and 98.3% of C. glabrata were inhibited by ≤0.12 µg/mL of CD101, and these isolates were susceptible/wild type to other echinocandins using CLSI clinical breakpoint and epidemiological cutoff value (ECV) interpretive criteria...
July 6, 2017: International Journal of Antimicrobial Agents
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