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Candida or invasive aspergillosis

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https://www.readbyqxmd.com/read/28529020/nosocomial-legionellosis-and-invasive-aspergillosis-in-a-child-with-t-lymphoblastic-leukemia
#1
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/28525576/profiling-of-volatile-organic-compounds-produced-by-clinical-aspergillus-isolates-using-gas-chromatography-mass-spectrometry
#2
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
#3
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
#4
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/28509673/immune-responses-to-invasive-aspergillosis-new-understanding-and-therapeutic-opportunities
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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/28491888/successful-treatment-of-allergic-bronchopulmonary-aspergillosis-with-isavuconazole-case-report-and-review-of-the-literature
#12
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
#13
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
#14
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/28485322/role-of-triggering-receptor-expressed-on-myeloid-cell-1-expression-in-mammalian-target-of-rapamycin-modulation-of-cd8-t-cell-differentiation-during-the-immune-response-to-invasive-pulmonary-aspergillosis
#15
Na Cui, Hao Wang, Long-Xiang Su, Jia-Hui Zhang, Yun Long, Da-Wei Liu
BACKGROUND: Triggering receptor expressed on myeloid cell-1 (TREM-1) may play a vital role in mammalian target of rapamycin (mTOR) modulation of CD8+ T-cell differentiation through the transcription factors T-box expressed in T-cells and eomesodermin during the immune response to invasive pulmonary aspergillosis (IPA). This study aimed to investigate whether the mTOR signaling pathway modulates the proliferation and differentiation of CD8+ T-cells during the immune response to IPA and the role TREM-1 plays in this process...
May 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28484525/invasive-aspergillus-sinusitis-with-orbitocranial-extension
#16
Saleh S Baeesa, Rakan F Bokhari, Khalid B Alghamdi, Hisham B Alem, Jaudah A Al-Maghrabi, Tariq A Madani
CONTEXT: Invasive sinonasal aspergillosis is a silently progressive disease that, left untreated, may invade the adjacent intracranial and intra-orbital compartments incurring serious morbidity. AIM: To evaluate our results of a collaborative surgical management plans for patients with invasive sinonasal aspergillosis with orbitocranial extension. SETTING AND DESIGN: Retrospective study. MATERIALS AND METHODS: Between the years 2000 and 2012, 12 patients with Aspergillus sinusitis with orbitocranial extension were treated at our institution...
April 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28483449/luliconazole-an-alternative-antifungal-agent-against-aspergillus-terreus
#17
M Zargaran, S Taghipour, N Kiasat, E Aboualigalehdari, A Rezaei-Matehkolaei, A Zarei Mahmoudabadi, F Shamsizadeh
Aspergillus terreus is the fourth leading cause of invasive and non-invasive aspergillosis and one of the causative agents of morbidity and mortality among immunocompromised and high-risk patients. A. terreus appears to have increased as a cause of opportunistic fungal infections from superficial to serious invasive infections. Although, invasive aspergillosis is often treated empirically with amphotericin B, most A. terreus isolates are resistant both in vivo and in vitro to some antifungal drugs. In this study, we aimed to evaluate antifungals susceptibility profiles of the different strains of A...
May 5, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28482726/the-predictive-value-of-aspergillus-pcr-testing-on-bronchoalveolar-lavage-fluid-for-early-diagnosis-of-invasive-pulmonary-aspergillosis-in-hematologic-patients
#18
Francesco Marchesi, Antonio Spadea, Fulvia Pimpinelli, Grazia Prignano, Maria Grazia Paglia, Daniele Forcella, Svitlana Gumenyuk, Daniela Renzi, Francesca Palombi, Antonella Vulcano, Francesco Pisani, Atelda Romano, Elena Papa, Francesco Facciolo, Fabrizio Ensoli, Corrado Girmenia, Andrea Mengarelli
No abstract text is available yet for this article.
May 9, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28480260/trends-in-hospitalizations-related-to-invasive-aspergillosis-and-mucormycosis-in-the-united-states-2000-2013
#19
Snigdha Vallabhaneni, Kaitlin Benedict, Gordana Derado, Rajal K Mody
BACKGROUND: Invasive aspergillosis (IA) and mucormycosis contribute to substantial mortality, especially among immunocompromised persons, including those with hematopoietic stem cell transplant (HSCT), hematologic malignancy (HM), and solid organ transplant (SOT). METHODS: Using International Classification of Diseases, Ninth Revision codes available in the National Inpatient Sample, a hospital discharge database, we estimated IA-related hospitalizations (IA-RH), mucormycosis-RH (M-RH), HSCT-RH, HM-RH, and SOT-RH during 2000-2013...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28480161/multiple-cavities-with-halo-sign-in-a-case-of-invasive-pulmonary-aspergillosis-during-therapy-for-drug-induced-hypersensitivity-syndrome
#20
Tomoo Ikari, Katsura Nagai, Masashi Ohe, Toshiyuki Harada, Yasushi Akiyama
A 67-year-old female with rheumatoid arthritis and asthma-chronic obstructive pulmonary disease overlap syndrome was admitted for drug-induced hypersensitivity syndrome (DIHS) caused by salazosulfapyridine. Human herpes virus 6 (HHV-6) variant B was strongly positive on peripheral blood. Multiple cavities with ground grass opacities rapidly emerged predominantly in the upper and middle lobes. She was diagnosed with invasive pulmonary aspergillosis (IPA), and was treated successfully with antifungal agents. Therapeutic systemic corticosteroids, emphysematous change in the lungs, and the worsening of the patient's general condition due to DIHS were considered major contributing factor leading to IPA...
2017: Respiratory Medicine Case Reports
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