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Fungal invasive infection

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https://www.readbyqxmd.com/read/29156624/evaluation-of-posaconazole-pharmacokinetics-in-adult-patients-with-invasive-fungal-infection
#1
Sarah Allegra, Giovanna Fatiguso, Silvia De Francia, Fabio Favata, Elisa Pirro, Chiara Carcieri, Amedeo De Nicolò, Jessica Cusato, Giovanni Di Perri, Antonio D'Avolio
Mortality and morbidity due to invasive fungal infections have increased over the years. Posaconazole is a second-generation triazole agent with an extended spectrum of activity, which shows a high interindividual variability in its plasma levels, rendering dosing in many patients inconsistent or inadequate. Hence, posaconazole therapeutic drug monitoring, which is easily available in clinical practice, may improve treatment success and safety. The aim of the study was to describe posaconazole pharmacokinetics, and to evaluate the utility of therapeutic drug monitoring for therapy and prophylaxis in a cohort of adult patients...
November 20, 2017: Biomedicines
https://www.readbyqxmd.com/read/29154044/modulating-host-immune-responses-to-fight-invasive-fungal-infections
#2
REVIEW
James E Scriven, Mark W Tenforde, Stuart M Levitz, Joseph N Jarvis
Modulation of host immunity in invasive fungal infection is an appealing but as yet mostly elusive treatment strategy. Animal studies in invasive candidiasis and aspergillosis have demonstrated beneficial effects of colony stimulating factors, interferon-gamma and monoclonal antibodies. More recent studies transfusing leukocytes pre-loaded with lipophilic anti-fungal drugs, or modulated T-cells, along with novel vaccination strategies show great promise. The translation of immune therapies into clinical studies has been limited to date but this is changing and the results of new Candida vaccine trials are eagerly awaited...
November 15, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/29153071/-mycoviruses-and-importance-in-mycology
#3
Sema Aşkın Keçeli
Opportunistic fungal infections like invasive candidiasis and aspergillozis have high mortality rate particularly in immunosupressive patients. The rate of therapy success with antifungal agents is usually low. Although immunotherapy methods have been developed to increase the host response against antifungals, there has been a need for new antifungal therapeutic agents in the treatment of invasive aspergillozis and other opportunistic fungal infections. Mycoviruses are the viruses that specifically infect fungi...
October 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/29152582/the-genomic-landscape-of-the-fungus-specific-swi-snf-complex-subunit-snf6-in-candida-albicans
#4
Faiza Tebbji, Yaolin Chen, Adnane Sellam, Malcolm Whiteway
SWI/SNF is an ATP-dependent chromatin-remodeling complex that is required for the regulation of gene expression in eukaryotes. While most of the fungal SWI/SNF components are evolutionarily conserved with those of the metazoan SWI/SNF, subunits such as Snf6 are specific to certain fungi and thus represent potential antifungal targets. We have characterized the role of the Snf6 protein in Candida albicans. Our data showed that although there was low conservation of its protein sequence with other fungal orthologs, Snf6 was copurified with bona fide SWI/SNF complex subunits...
November 2017: MSphere
https://www.readbyqxmd.com/read/29152230/rare-fungal-infectious-agents-a-lurking-enemy
#5
REVIEW
Anna Skiada, Ioannis Pavleas, Maria Drogari-Apiranthitou
In the expanding population of immunocompromised patients and those treated in intensive care units, rare fungal infectious agents have emerged as important pathogens, causing invasive infections associated with high morbidity and mortality. These infections may present either as de novo or as breakthrough invasive infections in high-risk patients with hematologic malignancies receiving prophylactic or empirical antifungal therapy or in patients with central venous catheters. Diagnosis and treatment are challenging...
2017: F1000Research
https://www.readbyqxmd.com/read/29151329/epidemiology-and-analysis-of-invasive-fungal-infections-in-patients-withhematological-malignancies-a-single-center-real-life-experience
#6
Nur Soyer, Hatice Demet Kiper Ünal, Filiz Vural, Fahri Şahin, Mahmut Töbü, Ayhan Dönmez, Murat Tombuloğlu, Bilgin Arda, Güray Saydam
Background/aim: Invasive fungal infection (IFI) causes morbidity and mortality among patients with hematological malignancies. We evaluated the incidence and treatment characteristics of IFIs between October 2012 and December 2013. Materials and methods: Patients who received chemotherapy or stem cell transplantation were retrospectively evaluated. Fungal infections were classified according to EORTC criteria.Results: Prophylaxis and antifungal therapy were given in 30.5% and 23.6% of 522 chemotherapy courses, respectively...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29149266/association-between-prior-antibiotic-therapy-and-subsequent-risk-of-community-acquired-infections-a-systematic-review
#7
Umer Malik, David Armstrong, Mark Ashworth, Alex Dregan, Veline L'Esperance, Lucy McDonnell, Mariam Molokhia, Patrick White
Background: Antibiotic use can have negative unintended consequences including disruption of the human microbiota, which is thought to protect against pathogen overgrowth. We conducted a systematic review to assess whether there is an association between exposure to antibiotics and subsequent risk of community-acquired infections. Methods: We searched MEDLINE, EMBASE and Web of Science for studies published before 30 June 2017, examining the association between antibiotic use and subsequent community-acquired infection...
November 14, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29147867/population-structure-of-candida-parapsilosis-no-genetic-difference-between-french-and-urugayan-isolates-using-microsatellite-length-polymorphism
#8
Marie Desnos-Ollivier, Victoria Bórmida, Philippe Poirier, Céline Nourrisson, Dinorah Pan, Stéphane Bretagne, Andrès Puime, Françoise Dromer
Candida parapsilosis is a human commensal yeast, frequently involved in infection worldwide and especially in neonates. It is the second species responsible for bloodstream infections in Uruguay and the third species in France. We were interested in knowing whether the population structure of isolates responsible for candidemia in France and in Uruguay was different. Genotyping methods based on microsatellite length polymorphism (MLP) have been described and are especially used for investigation of local outbreaks...
November 16, 2017: Mycopathologia
https://www.readbyqxmd.com/read/29144965/role-of-serum-1-3%C3%AE-d-glucan-assay-in-early-diagnosis-of-invasive-fungal-infections-in-a-neonatal-intensive-care-unit
#9
Abd Elazeez Shabaan, Lobna Mahmoud Elbaz, Wafaa M El-Emshaty, Basma Shouman
OBJECTIVES: To study the microbiological pattern of late onset neonatal sepsis cultures and to assess the diagnostic performance of serum (1,3)-β-d-glucan level for early diagnosis of invasive fungemia in high-risk infants admitted to a neonatal intensive care unit. METHODS: A prospective multicenter clinical trial conducted on infants at high risk for invasive fungal infections, with suspected late onset sepsis, admitted to a neonatal intensive care unit at Mansoura University Children's Hospital and Mansoura General Hospital between March 2014 and February 2016...
November 13, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/29142047/multi-center-evaluation-of-the-vitek-ms-v3-0-system-for-the-identification-of-filamentous-fungi
#10
Jenna Rychert, E Sue Slechta, Adam P Barker, Edwin Miranda, N Esther Babady, Yi-Wei Tang, Connie Gibas, Nathan Wiederhold, DeAnna Sutton, Kimberly E Hanson
Invasive fungal infections are an important cause of morbidity and mortality affecting primarily immunocompromised patients. While fungal identification to the species level is critical to providing appropriate therapy, it can be slow, laborious, and often relies on subjective morphologic criteria. The use of MALDI-TOF mass spectrometry has the potential to speed up and improve the accuracy of identification. In this multi-center study, we evaluated the accuracy of the VITEK® MS v3.0 system in identifying 1,601 clinical mold isolates as compared to identification by DNA sequence analysis and supported by morphologic and phenotypic testing...
November 15, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29141316/-a-clinical-analysis-of-micafungin-treatment-of-pulmonary-invasive-fungal-infection-in-pediatric-patients-with-acute-leukemia-or-post-hematopoietic-stem-cells-transplantation
#11
K Huang, K Y Qiu, L L Deng, J P Fang, Y Li, H X Guo, D H Zhou
Objective: To investigate the efficacy and safety of micafungin (MCF) for pulmonary invasive fungal disease (PIFD) in pediatric patients with acute leukemia or post hematopoietic stem cells transplantation. Method: Twenty-five neutropenic PIFD children with acute leukemia or post hematopoietic stem cells transplantation in Sun Yat-sen Memorial Hospital of Sun Yat-sen University were selected from January 2012 to June 2015, including 12 males and 13 females, age range 2-15 (average 6.2±2.0) years. There were 12 cases of acute leukemia (AL) after chemotherapy, 4 cases of acute leukemia (AL) after allogeneic hematopoietic stem cell transplantation (allo-HSCT) and 9 cases of β-thalassemia major after allo-HSCT...
November 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29140934/response-of-symptomatic-persistent-chronic-disseminated-candidiasis-to-corticosteroid-therapy-in-immunosuppressed-pediatric-patients-case-study-and-review-of-the-literature
#12
Vered Shkalim-Zemer, Itzhak Levi, Salvador Fischer, Hannah Tamary, Joanne Yakobovich, Gali Avrahami, Gil Gilad, Sara Elitzur, Isaac Yaniv, Ronit Elhasid, Michal Manistersky, Itamar Shalit
BACKGROUND: Chronic disseminated candidiasis (CDC) is a severe invasive fungal infection principally observed during neutrophil recovery in patients with acute leukemia treated with intensive chemotherapy. Its pathophysiology remains unclear. We describe the management of six children with symptomatic CDC who did not respond to antifungal therapy. METHODS: The databases of the hematology-oncology departments of two tertiary pediatric medical centers were searched for all patients diagnosed with CDC from 2003 to 2015 who responded to corticosteroids after failing antifungal therapy...
November 14, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29133564/fungal-prophylaxis-with-a-gastro-resistant-posaconazole-tablet-for-patients-with-hematological-malignancies-final-result-of-the-posanantes-study
#13
Pierre Peterlin, Cécile Chauvin, Steven Le Gouill, Morgane Pere, Marie Dalichampt, Thierry Guillaume, Alice Garnier, Maxime Paré, Amandine Le Bourgeois, Philippe Moreau, Patrice Chevallier, Guillaume Deslandes, Thomas Gastinne
Posaconazole is an antifungal drug used in both prophylaxis and treatment of invasive fungal infections. Its oral formulation requires therapeutic drug monitoring. To overcome gastric acidity, a gastro-resistant posaconazole tablet has recently been developed. POSANANTES was a prospective non interventional study that aimed to monitor plasma concentration trough level (Cmin) of posaconazole tablets used prophylactically in patients with hematological malignancies. Fifty patients were included. Group A (n= 31) included patients receiving induction chemotherapy for myeloid malignancies and group B (n=19) included patients treated for graft versus host disease after allogeneic hematopoietic stem cells transplantation...
November 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29132490/rehabilitation-of-a-complex-oro-facial-defect-by-modified-prosthetic-approach
#14
Saumyendra V Singh, Himanshi Aggarwal, Vinit Shah, Pradeep Kumar, Deeksha Arya
Loss of part of the face is associated with physical disability, social isolation and immense psychological trauma. Proper rehabilitation of such a patient is a challenging yet satisfying task for a maxillofacial prosthodontist. Facial prostheses are commonly fabricated of silicone because of many favorable properties, though it predisposes to fungal growth.This report is of a patient with history of uncontrolled diabetes and associated invasive fungal infection, leading to a complex oro-facial defect, which was rehabilitated successfully with a silicone facial prosthesis lined by a material more resistant to fungal growth along with a cast partial obturator...
November 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29128933/proven-invasive-pulmonary-aspergillosis-in-stem-cell-transplant-recipient-due-to-aspergillus-sublatus-a-cryptic-species-of-a-nidulans
#15
Vanda Chrenkova, Vit Hubka, Petr Cetkovsky, Michal Kouba, Barbora Weinbergerova, Pavlina Lyskova, Ludmila Hornofova, Petr Hubacek
Invasive fungal disease represents one of the severe complications in haematopoietic stem cell transplant recipients. We describe a case of a patient treated for relapse of chronic lymphoblastic leukaemia 6 years after HSCT. The patient was treated for invasive pulmonary aspergillosis but died 3 months later from multiple organ failures consisting of haemorrhagic necrotizing fungal pneumonia, refractory chronic hepatic graft versus host disease and cytomegalovirus hepatitis. Autopsy samples revealed histopathological evidence of fungal hyphae and an unusual Aspergillus nidulans-like species was isolated in pure culture...
November 11, 2017: Mycopathologia
https://www.readbyqxmd.com/read/29128761/inborn-errors-of-immunity-underlying-fungal-diseases-in-otherwise-healthy-individuals
#16
REVIEW
Juan Li, Donald C Vinh, Jean-Laurent Casanova, Anne Puel
It has been estimated that there are at least 1.5 million fungal species, mostly present in the environment, but only a few of these fungi cause human disease. Most fungal diseases are self-healing and benign, but some are chronic or life-threatening. Acquired and inherited defects of immunity, including breaches of mucocutaneous barriers and circulating leukocyte deficiencies, account for most severe modern-day mycoses. Other types of infection typically accompany these fungal infections. More rarely, severe fungal diseases can strike otherwise healthy individuals...
November 9, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/29126739/discovery-of-simplified-sampangine-derivatives-as-novel-fungal-biofilm-inhibitors
#17
Na Liu, Hua Zhong, Jie Tu, Zhigan Jiang, Yanjuan Jiang, Yan Jiang, Yuanying Jiang, Jian Li, Wannian Zhang, Yan Wang, Chunquan Sheng
Lack of novel antifungal agents and severe drug resistance have led to high incidence and associated mortality of invasive fungal infections. To tackle the challenges, novel antifungal agents with new chemotype, fungicidal activity and anti-resistant potency are highly desirable. On the basis of our previously identified simplified analogue of antifungal natural product sampangine, systemic structure-activity relationships were clarified and two novel derivatives showed promising features as novel antifungal lead compounds...
October 16, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29125660/primary-prophylaxis-of-invasive-fungal-infections-with-posaconazole-or-itraconazole-in-patients-with-acute-myeloid-leukemia-or-high-risk-myelodysplastic-syndromes-undergoing-intensive-cytotoxic-chemotherapy-a-real-world-comparison
#18
Mar Tormo, Ariadna Pérez-Martínez, Marisa Calabuig, Juan Carlos Hernández-Boluda, Paula Amat, David Navarro, Carlos Solano
This is an observational-retrospective study comparing the real-world outcomes associated with posaconazole vs. itraconazole as prophylaxis treatments. Two hundred and ninety-three patient admissions attributable to 174 patients were included in the study. Patients were treated with itraconazole (n = 114 admissions; 39%) or posaconazole (n = 179; 61%). Antifungal prophylaxis failure (APF) due to treatment-related adverse events (in 34 out of 293 patient admissions; 11.6%) was more frequent in the posaconazole group (6...
November 10, 2017: Mycoses
https://www.readbyqxmd.com/read/29120502/necrotizing-microascus-tracheo-bronchitis-in-a-bilateral-lung-transplant-recipient
#19
Olivier Taton, Benjamin Bernier, Isabelle Etienne, Benjamin Bondue, Sophie Lecomte, Christiane Knoop, Frederique Jacob, Isabel Montesinos
Invasive fungal infections are a major cause of mortality among solid organ transplant recipients. Scopulariopsis species and their teleomorph Microascus are molds found in soil and decaying organic matter. We report here the case of a woman who underwent bilateral lung transplantation for severe emphysema. On day 25 after transplantation, endobronchial green-black lesions were detected during routine endoscopy. Endobronchial swabs, biopsies, and broncho-alveolar lavage samples were positive for Microascus cirrosus...
November 9, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29119669/sinusitis-caused-by-exserohilum-rostratum-after-cord-blood-transplantation-for-myelodysplastic-syndrome-a-case-report-and-literature-review
#20
Sumiko Kohashi, Takaaki Toyama, Norisato Hashimoto, Masatoshi Sakurai, Jun Kato, Taku Kikuchi, Yuya Koda, Kayoko Sugita, Naoki Hasegawa, Kyoko Yarita, Katsuhiko Kamei, Shinichiro Okamoto, Takehiko Mori
Invasive fungal disease is a serious infectious complication of allogeneic hematopoietic stem cell transplantation (HSCT). Exserohilum rostratum is a species causing phaeohyphomycosis, which rarely causes invasive disease in humans. We treated a case of sinusitis caused by E. rostratum after cord blood transplantation (CBT). A 60-year-old man with myelodysplastic syndrome, who had a medical history of an operation to correct deviation of the nasal septum, developed sinusitis caused by E. rostratum under prolonged profound neutropenia after a second CBT because of the graft rejection of the first transplantation...
November 8, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
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