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invasive pulmonary aspergillosis

Nikolaus Rieber, Roel P Gazendam, Alexandra F Freeman, Amy P Hsu, Amanda L Collar, Janyce A Sugui, Rebecca A Drummond, Chokechai Rongkavilit, Kevin Hoffman, Carolyn Henderson, Lily Clark, Markus Mezger, Muthulekha Swamydas, Maik Engeholm, Rebecca Schüle, Bettina Neumayer, Frank Ebel, Constantinos M Mikelis, Stefania Pittaluga, Vinod K Prasad, Anurag Singh, Joshua D Milner, Kelli W Williams, Jean K Lim, Kyung J Kwon-Chung, Steven M Holland, Dominik Hartl, Taco W Kuijpers, Michail S Lionakis
Invasive pulmonary aspergillosis is a life-threatening mycosis that only affects patients with immunosuppression, chemotherapy-induced neutropenia, transplantation, or congenital immunodeficiency. We studied the clinical, genetic, histological, and immunological features of 2 unrelated patients without known immunodeficiency who developed extrapulmonary invasive aspergillosis at the ages of 8 and 18. One patient died at age 12 with progressive intra-abdominal aspergillosis. The other patient had presented with intra-abdominal candidiasis at age 9, and developed central nervous system aspergillosis at age 18 and intra-abdominal aspergillosis at age 25...
October 20, 2016: JCI Insight
Maya Hites, Eduardo Wilfrido Goicoechea Turcott, Fabio Silvio Taccone
No abstract text is available yet for this article.
September 2016: Annals of Translational Medicine
Katerina Kaziani, Elli Mitrakou, George Dimopoulos
No abstract text is available yet for this article.
September 2016: Annals of Translational Medicine
Yuetian Yu, Cheng Zhu, Xiaozhe Qian, Yuan Gao
Invasive pulmonary aspergillosis (IPA) is commonly seen in immunocompromised patients, and tracheoesophageal fistula (TEF) induced by IPA is rare and seldom reported. Management of these critically ill patients is challenging and often requires a multidisciplinary approach. The authors reported an adult suffering from aplastic anemia who developed TEF caused by IPA. The diagnosis was confirmed following bronchoscopy and histopathological examination. Antifungal and bronchoscopic intervention provided a cure without any recurrence as yet...
September 2016: Annals of Translational Medicine
L F A Guimarães, M Halpern, A S de Lemos, E F de Gouvêa, R T Gonçalves, M A A da Rosa Santos, M Nucci, G Santoro-Lopes
INTRODUCTION: Invasive fungal disease (IFD) is an important complication after solid organ transplantation (SOT). A marked geographic variation in the epidemiology of IFD after kidney transplantation (KT) has been suggested by the results of previous studies. Nevertheless, data from Latin American centers are scarce. OBJECTIVE: This study sought to describe the epidemiology of IFD at a Brazilian KT center. METHODS: This study was a retrospective single-center cohort study that included patients who underwent KT between 1998 and 2009 and were followed up until July 2015...
September 2016: Transplantation Proceedings
Tobias Svensson, Kristina Lamberg Lundström, Martin Höglund, Honar Cherif
BACKGROUND: Patients treated for hematological malignancies have an increased risk of serious infections. Diagnosis and prompt initiation of therapy are essential. Bronchoalveolar lavage (BAL) is a well-established investigation for identifying the cause of pulmonary infiltrates in immunocompromised patients. The aim of the study was to determine the diagnostic yield of BAL in patients treated for hematological malignancies and how often it contributed to a modification of the anti-infectious therapy...
October 14, 2016: Upsala Journal of Medical Sciences
Chaitanya Gb, Shankar Prasad, Lavanya K
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
Yee-Huang Ku, Yin-Ching Chuang, Wen-Liang Yu
No abstract text is available yet for this article.
October 7, 2016: Journal of the Formosan Medical Association, Taiwan Yi Zhi
Lilian Pereira Silva, Patrícia Alves de Castro, Thaila Fernanda Dos Reis, Mario Henrique Paziani, Márcia Regina Von Zeska Kress, Diego M Riaño-Pachón, Daisuke Hagiwara, Laure N A Ries, Neil Andrew Brown, Gustavo H Goldman
Invasive aspergillosis is predominantly caused by Aspergillus fumigatus and adaptations to stresses experienced within the human host are a prerequisite for the survival and virulence strategies of the pathogen. The central signal transduction pathway operating during hyperosmotic stress is the High Osmolarity Glycerol mitogen-activated protein kinase (MAPK) cascade. A. fumigatus MpkC and SakA, orthologues of the Saccharomyces cerevisiae Hog1p, constitute the primary regulator of the hyperosmotic stress response...
October 5, 2016: Cellular Microbiology
Caitlin H Kowalski, Sarah R Beattie, Kevin K Fuller, Elizabeth A McGurk, Yi-Wei Tang, Tobias M Hohl, Joshua J Obar, Robert A Cramer
UNLABELLED: Previous work has shown that environmental and clinical isolates of Aspergillus fumigatus represent a diverse population that occupies a variety of niches, has extensive genetic diversity, and exhibits virulence heterogeneity in a number of animal models of invasive pulmonary aspergillosis (IPA). However, mechanisms explaining differences in virulence among A. fumigatus isolates remain enigmatic. Here, we report a significant difference in virulence of two common lab strains, CEA10 and AF293, in the murine triamcinolone immunosuppression model of IPA, in which we previously identified severe low oxygen microenvironments surrounding fungal lesions...
September 20, 2016: MBio
E Swoboda-Kopeć, M Sikora, K Piskorska, M Gołaś, I Netsvyetayeva, D Przybyłowska, E Mierzwińska-Nastalska
Culturing strains from clinical samples is the main method to diagnose invasive pulmonary aspergillosis. Detecting the galactomannan antigen in serum samples is an auxiliary examination. The goal of this study was to determine the frequency with which Aspergillus fumigatus was cultured in clinical samples taken from patients hospitalized in the the Infant Jesus Teaching Hospital in Warsaw, Poland, in the period of 2013-2014. Specimens from the respiratory tract and blood were cultured for mycological and serological assessments...
September 20, 2016: Advances in Experimental Medicine and Biology
Saurabh Singh, Steven Bandula, Jeremy Brown, Jeremy Whelan, Rowland Illing
We present a case of a patient who following chemotherapy developed semi-invasive pulmonary aspergillosis and an aspergilloma in a lung cavity previously formed by microwave ablation (MWA). A 55-year-old woman presented with cough and shortness of breath after finishing three cycles of chemotherapy for a metastatic nerve sheath tumour. She had been treated by MWA for pulmonary metastases 2 years previously which resulted in a residual right apical lung cavity. Postchemotherapy imaging showed that this cavity had enlarged, developed a thicker wall and contained lobulated soft tissue with a crescent sign on coronal reformats...
2016: BMJ Case Reports
Falk Hillmann, Karine Bagramyan, Maria Straßburger, Thorsten Heinekamp, Teresa B Hong, Krzysztof P Bzymek, John C Williams, Axel A Brakhage, Markus Kalkum
Invasive aspergillosis and other fungal infections occur in immunocompromised individuals, including patients who received blood-building stem cell transplants, patients with chronic granulomatous disease (CGD), and others. Production of reactive oxygen species (ROS) by immune cells, which incidentally is defective in CGD patients, is considered to be a fundamental process in inflammation and antifungal immune response. Here we show that the peroxiredoxin Asp f3 of Aspergillus fumigatus inactivates ROS. We report the crystal structure and the catalytic mechanism of Asp f3, a two-cysteine type peroxiredoxin...
2016: Scientific Reports
Linna Huang, Hangyong He, Yi Ding, Jingjing Jin, Qingyuan Zhan
Introduction The important role of radiological examinations of invasive pulmonary aspergillosis (IPA) in patients with neutropenia has been well studied; however, little is known about IPA in critically ill chronic obstructive pulmonary disease (COPD) patients. Objectives To evaluate the value of radiological examinations in the diagnosis and prognosis of invasive bronchial-pulmonary aspergillosis (IBPA) in critically ill COPD patients. Methods We included 61 critically ill COPD patients in the intensive care unit (ICU) in a retrospective, single-center cohort study...
September 10, 2016: Clinical Respiratory Journal
J T Ramos, L Francisco, Z Daoud
Invasive fungal infections (IFI) are a major cause of morbidity and mortality in immunocompromised adults and children. The purpose of this review was to update the epidemiological, clinical and therapeutic options in children, and to compare them with the adult population. Although there are important differences, the epidemiology, clinical features and risk factors for IFI have many similarities. Patient at risk include neutropenic hematology children, in whom Candida spp. y Aspergillus spp. predominate; primary immunodeficiencies, particularly chronic granulomatous disease with high susceptibility for Aspergillus spp...
September 2016: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
M I Tejeda, S Salso, J Barberán
The incidence of invasive pulmonary aspergillosis (IPA) is increasing among non-neutropenic patients in recent years. The difficulty of early diagnosis in these patients involves a delay in the onset of adequate treatment and higher mortality.
September 2016: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
Hangyong He, Ying Sun, Bing Sun, Qingyuan Zhan
OBJECTIVE: To evaluate the mortality risk factors of patients with severe chronic obstructive pulmonary disease (COPD) in the intensive care unit (ICU) by utilizing parametric model of survival analysis, and to estimate patients' prognoses based on the risk and survival functions in the model. METHODS: The clinical data and outcomes of COPD patients admitted to a respiratory intensive care unit (RICU) at Beijing Chao-Yang Hospital from January 2009 to June 2014 were prospectively collected...
September 8, 2016: Clinical Respiratory Journal
Guang-Shing Cheng, Zach J Stednick, David K Madtes, Michael Boeckh, George B McDonald, Steven A Pergam
Historically, diagnosis of enigmatic pulmonary disease after hematopoietic cell transplantation (HCT) required lung biopsy, but recent advancements in diagnosis and therapy for respiratory infections have changed how clinicians approach pulmonary abnormalities. We examined temporal trends in the use of lung biopsy after HCT. We retrospectively reviewed patients who underwent their first allogeneic HCT at the Fred Hutchinson Cancer Research Center between the years 1993 to 1997, 2003 to 2007, and 2013 to 2015 and subsequently underwent surgical lung biopsy for any reason...
August 31, 2016: Biology of Blood and Marrow Transplantation
John Abuga Guto, Christine C Bii, David W Denning
INTRODUCTION: Kenya is a developing country with a high rate of tuberculosis (TB) and a moderate HIV infection burden. No estimate of the burden of fungal diseases in Kenya is published. METHODOLOGY: We used specific populations at risk and fungal infection frequencies from the literature to estimate national incidence or prevalence of serious fungal infections. Used sources were: 2010 WHO TB statistics, Kenya Acquired Immunodeficiency Syndrome (AIDS) Epidemic Update 2012, Kenya Facts and figures 2012, Kenya Demographic and Health Survey 2008-2009...
August 31, 2016: Journal of Infection in Developing Countries
K L Mortensen, T P Krogh, S Jensen-Fangel, E M Hauge
No abstract text is available yet for this article.
August 30, 2016: Scandinavian Journal of Rheumatology
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