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https://www.readbyqxmd.com/read/28530849/allergic-bronchopulmonary-aspergillosis-in-cystic-fibrosis-mr-imaging-of-airway-mucus-contrasts-as-a-tool-for-diagnosis
#1
Gaël Dournes, Patrick Berger, John Refait, Julie Macey, Stephanie Bui, Laurence Delhaes, Michel Montaudon, Olivier Corneloup, Jean-François Chateil, Roger Marthan, Michaël Fayon, François Laurent
Purpose To assess the diagnostic accuracy of mucus contrast characterization by using magnetic resonance (MR) imaging to discriminate allergic bronchopulmonary aspergillosis (ABPA) in cystic fibrosis (CF). Materials and Methods The study was approved by the local Ethics Committee, and all patients or their parents gave written informed consent. One hundred ten consecutive patients with CF were screened between January 2014 and July 2015. All patients underwent a non-contrast material-enhanced MR protocol that included routine T1-weighted and T2-weighted sequences...
May 22, 2017: Radiology
https://www.readbyqxmd.com/read/28529020/nosocomial-legionellosis-and-invasive-aspergillosis-in-a-child-with-t-lymphoblastic-leukemia
#2
Rhoikos Furtwängler, Uwe Schlotthauer, Barbara Gärtner, Norbert Graf, Arne Simon
Invasive aspergillosis of the lungs and the central nervous system and Legionella pneumophilia serotype 1 infection of the lungs were diagnosed in a 22-month old child during inpatient induction treatment for T-lymphoblastic leukemia. Environmental investigations i.e. samples from the hospital water system did not reveal any Legionella. The patient may have been exposed to waterborne pathogens despite terminal water filtration due to a technical device to release residual tap water from the hose after showering...
May 13, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28526521/coexistence-of-aspergilloma-and-pulmonary-hydatid-cyst-in-an-immunocompetent-individual
#3
F Aala, H Badali, S Hashemi Fesharaki, M Boroumand, M Sotoudeh Anvari, H Davari, S Agha Kuchak Afshari, S Khodavaisy
Echinococcosis is a zoonotic disease caused by Echinococcus granulosus sensu lato. The liver and lungs are the most commonly sites of infections, but involvements of other organs were also observed. Recently, the coinfection of pulmonary hydatid cyst with aspergilloma has been reported in the literature. Herein, we report a successful treatment of coinfection of cystic echinoccosis with aspergilloma due to Aspergillus flavus in a 34-year-old female. In vitro antifungal susceptibility tests revealed that the MIC values for antifungals employed in this case were posaconazole (0...
May 16, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28526275/increasing-total-serum-ige-allergic-bronchopulmonary-aspergillosis-and-lung-function-in-cystic-fibrosis
#4
Florian Gothe, Matthias Kappler, Matthias Griese
BACKGROUND: Allergic bronchopulmonary aspergillosis (ABPA) is a hypersensitivity disorder contributing to lung disease in cystic fibrosis (CF) and challenging to diagnose. OBJECTIVE: This study analyzed the predictive value of increasing total IgE (t-IgE) levels in a CF cohort alongside with clinical and serologic data. METHODS: A total of 387 children and young adults were followed from 2000 to 2006 and retrospectively classified into 6 groups...
May 16, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28525576/profiling-of-volatile-organic-compounds-produced-by-clinical-aspergillus-isolates-using-gas-chromatography-mass-spectrometry
#5
M G Gerritsen, P Brinkman, N Escobar, L D Bos, K de Heer, M Meijer, H-G Janssen, H de Cock, H A B Wösten, C E Visser, M H J van Oers, P J Sterk
Volatile organic compounds (VOCs) in exhaled breath may identify the presence of invasive pulmonary aspergillosis. We aimed to detect VOC profiles emitted by in vitro cultured, clinical Aspergillus isolates using gas chromatography-mass spectrometry (GC-MS). Three clinical Aspergillus isolates and a reference strain were cultured while conidiation was prevented. Headspace samples were analyzed using a standardized method. Breath samples of patients from which the cultures were obtained were checked for the presence of the VOCs found in vitro...
May 18, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28516246/aspergillus-species-in-bronchiectasis-challenges-in-the-cystic-fibrosis-and-non-cystic-fibrosis-airways
#6
REVIEW
Sanjay H Chotirmall, Maria Teresa Martin-Gomez
Bronchiectasis is a chronic irreversible airway abnormality associated with infectious agents that either cause or superinfect the airways. While the role of bacteria is well studied, much remains to be determined about fungi in both cystic fibrosis- and non-cystic fibrosis-related bronchiectasis. The airway is constantly exposed to inhaled ambient moulds of which Aspergillus represent the most ubiquitous. In a normal healthy host, this situation is of little consequence. The presence of anatomical or immunological abnormalities such as those in bronchiectasis leads to a range of fungal-related pathologies from asymptomatic airway colonization to fungal sensitization, allergic bronchopulmonary aspergillosis or chronic pulmonary aspergillosis...
May 17, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28515217/an-analytical-and-clinical-evaluation-of-the-pathonostics-aspergenius%C3%A2-assay-for-the-detection-of-invasive-aspergillosis-and-resistance-to-azole-antifungal-drugs-direct-from-plasma-samples
#7
P Lewis White, Raquel B Posso, Rosemary A Barnes
With the proposal to include Aspergillus PCR in the revised EORTC/MSG definitions for fungal disease, commercially manufactured assays may be required to provide standardisation and accessibility. The PathoNostics AsperGenius® assay represents one such test that has the ability to detect a range of Aspergillus species and azole-resistance in A. fumigatus Performance has been validated when testing BAL and serum specimens, but recent evidence suggests that testing plasma may enhance sensitivity over serum. It was decided to evaluate the analytical and clinical performance of the PathoNostics AsperGenius® assay when testing plasma...
May 17, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28513848/aspergillus-fumigatus-in-cystic-fibrosis-an-update-on-immune-interactions-and-molecular-diagnostics-in-abpa
#8
REVIEW
Ania Carsin, Thomas Romain, Stéphane Ranque, Martine Reynaud-Gaubert, Jean-Christophe Dubus, Jean-Louis Mège, J Vitte
A wide spectrum of pathological conditions may result from the interaction of Aspergillus fumigatus and the immune system of its human host. Allergic bronchopulmonary aspergillosis is one of the most severe Aspergillus fumigatus-related diseases due to possible evolution towards pleuropulmonary fibrosis and respiratory failure. Allergic bronchopulmonary aspergillosis occurs almost exclusively in cystic fibrosis or asthmatic patients. An estimated 8 to 10% of cystic fibrosis patients experience this condition...
May 17, 2017: Allergy
https://www.readbyqxmd.com/read/28509673/immune-responses-to-invasive-aspergillosis-new-understanding-and-therapeutic-opportunities
#9
Tobias M Hohl
PURPOSE OF REVIEW: Invasive aspergillosis is a worldwide disease that primarily affects immune-compromised patients, agricultural workers with corneal abrasions, individuals with structural lung disease, and patients with primary immune deficiency. The critical function of the immune system is to prevent the germination of airborne conidia into tissue-invasive hyphae. This review covers recent advances that shape our understanding of anti-Aspergillus immunity at the molecular and cellular level...
May 13, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28507937/the-utilization-of-rna-silencing-technology-to-mitigate-the-voriconazole-resistance-of-aspergillus-flavus-lipofectamine-based-delivery
#10
Sanam Nami, Behzad Baradaran, Behzad Mansoori, Parivash Kordbacheh, Sasan Rezaie, Mehraban Falahati, Leila Mohamed Khosroshahi, Mahin Safara, Farideh Zaini
Purpose: Introducing the effect of RNAi in fungi to downregulate essential genes has made it a powerful tool to investigate gene function, with potential strategies for novel disease treatments. Thus, this study is an endeavor to delve into the silencing potentials of siRNA on cyp51A and MDR1 in voriconazole-resistant Aspergillus flavus as the target genes. Methods: In this study, we designed three cyp51A-specific siRNAs and three MDR1-specific siRNAs and after the co-transfection of siRNA into Aspergillus flavus, using lipofectamine, we investigated the effect of different siRNA concentrations (5, 15, 25, 50nM) on cyp51A and MDR1 expressions by qRT-PCR...
April 2017: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28506782/the-misleading-effect-of-serum-galactomannan-testing-in-high-risk-hematology-patients-receiving-prophylaxis-with-micafungin
#11
A Vena, E Bouza, A Álvarez-Uría, J Gayoso, P Martin-Rabadan, F Cajuste, J Guinea, J Gómez Castellá, R Alonso, P Munoz
OBJECTIVES: To investigate the performance of the routine serum galactomannan (sGM) assay in the diagnosis of invasive aspergillosis (IA) in high-risk hematology patients receiving prophylaxis with micafungin. METHODS: Retrospective study including all hematological patients who received prophylaxis with micafungin during high-risk IA episodes (neutropenic patients after chemotherapy for acute myeloid leukaemia/myelodysplastic syndrome; allogeneic HSCT during early neutropenic phase or graft-versus-host disease requiring high prednisone doses)...
May 12, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28504663/a-new-time-dependent-approach-for-assessment-of-the-impact-of-invasive-aspergillosis-shows-effect-on-short-but-not-on-long-term-survival-of-patients-with-aml-or-high-risk-mds
#12
R J van de Peppel, P A von dem Borne, S le Cessie, M G J de Boer
Invasive aspergillosis (IA) has been reported to yield high mortality rates. Patients with an unfavourable prognostic haematological disease not only have a higher probability of developing IA but are also more likely to die due to causes directly related to the underlying disease. This complexity of risk mechanisms confounds the causal interpretation of IA occurrence and mortality. Full consideration of the changing patient characteristics over time is necessary to obtain reliable estimates of the correlation of IA with mortality...
May 15, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28499737/endovascular-repair-as-a-bridge-to-open-repair-of-a-ruptured-descending-thoracic-aspergilus-aortitis
#13
Philippe Tresson, Arnaud Roussel, Pierre Mordant, Pierre Cerceau, Yves Castier, Quentin Pellenc
Invasive aspergillosis rarely involves the thoracic aorta, and is associated with a poor prognosis. A heart-transplanted 56-year old patient presented with invasive aspergillosis, primary aspergillus aortitis, and ruptured thoracic aorta pseudoaneurysm. Open surgery was not possible due to severe sepsis. A sequential surgical strategy was therefore decided, including emergency thoracic endovascular aneurysm repair, followed by antifungal treatment, and definitive open repair with explantation of the endograft and placement of a cryopreserved arterial allograft under extra-corporeal membrane oxygenator support...
May 9, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28497621/endomyocardial-and-pericardial-aspergillosis-in-critically-ill-patients
#14
George Dimopoulos, Frantzeska Frantzeskaki, Marinos Kosmopoulos, Fabio Sylvio Taccone, Anne-Marie Van den Abeele, Pierre Bulpa, Frederic Forêt, Dirk Vogelaers, Stijn Blot
Invasive aspergillosis(IA) is a potentially lethal complication of Aspergillus infection affecting mainly immunocompromised hosts; however, during the last two decades its incidence was increasingly observed in critically ill immunocompetent patients. The objective of this study is to describe the clinical characteristics of histologically proven endomyocardial and pericardial invasion, in the context of IA, in critically ill patients. Eight critically ill patients with histopathological confirmation of endomyocardial/pericardial aspergillosis were evaluated...
May 12, 2017: Mycoses
https://www.readbyqxmd.com/read/28497121/implementation-of-isavuconazole-in-a-fluorescence-based-high-performance-liquid-chromatography-kit-allowing-simultaneous-detection-of-all-four-currently-licensed-mold-active-triazoles
#15
René Jørgensen, Siri Rytcher Andersen, Karen Marie Thyssen Astvad, Maiken Cavling Arendrup
Isavuconazole (ISZ) is a newly available broad-spectrum triazole agent recently approved for the treatment of both invasive aspergillosis and mucormycosis. The aim of this study was to develop a simple and reliable method for therapeutic drug monitoring (TDM) of ISZ in human plasma samples. The method involves using a kit from ChromSystems intended for TDM of itraconazole (ITZ), posaconazole (PSZ), and voriconazole (VRZ) in serum/plasma for sample preparation and high-performance liquid chromatography, using fluorescence detection with emission and excitation wavelengths set to 261 and 366 nm, respectively...
May 2017: MSphere
https://www.readbyqxmd.com/read/28493355/consideration-of-difficulties-and-exit-strategies-in-a-case-of-face-allotransplantation-resulting-in-failure
#16
Özlenen Özkan, Ömer Özkan, Umuttan Doğan, Vural Taner Yılmaz, Hilmi Uysal, Levent Ündar, Ebru Apaydın Doğan, Ozan Salim, Anı Çinpolat, Atilla Ramazanoglu
We describe the first rescue procedure in a case of total face allotransplantation. The recipient was a 54-year-old man with severe disfigurement of the entire face following an accidental gunshot injury 5 years previously. The large defect included the maxilla, mandible, and mid-face. Full face procurement was performed from a multiorgan cadaveric donor and was allotransplanted to the recipient. The post-transplant induction immunosuppressive regimen included ATG combined with tacrolimus, mycophenolate mofetil, and prednisone, while maintenance was provided by the last three of these...
May 11, 2017: Microsurgery
https://www.readbyqxmd.com/read/28491888/successful-treatment-of-allergic-bronchopulmonary-aspergillosis-with-isavuconazole-case-report-and-review-of-the-literature
#17
Samantha E Jacobs, Deborah Saez-Lacy, Walter Wynkoop, Thomas J Walsh
Isavuconazole is a new triazole that is approved for primary therapy of invasive aspergillosis. We provide the first report of a patient with allergic bronchopulmonary aspergillosis (ABPA) who was successfully treated with isavuconazole with marked improvement and minimal adverse effects. We further review the literature on antifungal management of ABPA.
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28489963/the-aspergillus-fumigatus-farnesyltransferase-%C3%AE-subunit-rama-mediates-growth-virulence-and-antifungal-susceptibility
#18
Tiffany S Norton, Qusai Al Abdallah, Amy M Hill, Rachel V Lovingood, Jarrod R Fortwendel
Post-translational prenylation mechanisms, including farnesylation and geranylgeranylation, mediate both subcellular localization and protein-protein interaction in eukaryotes. The prenyltransferase complex is an αβ heterodimer in which the essential α-subunit is common to both the farnesyltransferase and the geranylgeranyltransferase type-I enzymes. The β-subunit is unique to each enzyme. Farnesyltransferase activity is an important mediator of protein localization and subsequent signaling for multiple proteins, including Ras GTPases...
May 10, 2017: Virulence
https://www.readbyqxmd.com/read/28487045/pentraxin-3-levels-in-bronchoalveolar-lavage-fluid-of-lung-transplant-recipients-with-invasive-aspergillosis
#19
Dima Kabbani, Archana Bhaskaran, Lianne G Singer, Alyajahan Bhimji, Coleman Rotstein, Shaf Keshavjee, W Conrad Liles, Shahid Husain
BACKGROUND: Invasive aspergillosis is the most common invasive fungal infection in lung transplant recipients. The use of galactomannan testing in bronchoalveolar lavage (BAL) fluid has improved diagnosis of invasive aspergillosis; however, false-positive results can lead to overdiagnosis and unnecessary treatment. The use of proinflammatory markers such as pentraxin 3 (PTX3) may help differentiate between Aspergillus colonization and disease. METHODS: BAL PTX3 concentrations were measured by enzyme-linked immunosorbent assay in 151 lung transplant recipients and 9 healthy control subjects...
April 19, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28485470/treatment-of-refractory-sino-nasal-aspergillosis-with-posaconazole-and-terbinafine-in-10-dogs
#20
J Stewart, D Bianco
OBJECTIVES: To determine the safety and efficacy of posaconazole and terbinafine for the treatment of naturally occurring sino-nasal aspergillosis in dogs refractory to conventional topical and systemic treatment. MATERIALS AND METHODS: Ten client-owned dogs with sino-nasal aspergillosis and not responsive to conventional treatments were prospectively enrolled to receive a dose of 5 mg/kg posaconazole orally every 12 hours for six months. All dogs were concurrently treated with doses of 30 mg/kg terbinafine orally every 12 hours and 5 mg/kg doxycycline orally every 12 hours for 6 to 18 months...
May 9, 2017: Journal of Small Animal Practice
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