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Scedosporium apiospermum

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https://www.readbyqxmd.com/read/28223376/bactericidal-and-fungicidal-activity-of-n-chlorotaurine-is-enhanced-in-cystic-fibrosis-sputum-medium
#1
Martina Gruber, Ivan Moser, Markus Nagl, Michaela Lackner
Lung infections with multiresistant pathogens are a major problem of patients suffering from cystic fibrosis (CF). N-chlorotaurine (NCT), a microbicidal active chlorine compound with no resistance development, is well tolerated upon inhalation. The aim of this study was to investigate NCT on its bactericidal and fungicidal activity in vitro in artificial sputum medium (ASM) mimicking the composition of cystic fibrosis mucus.The medium was inoculated with bacteria (Staphylococcus aureus including some MRSA strains, Pseudomonas aeruginosa, Escherichia coli) or spores of fungi (Aspergillus fumigatus, Aspergillus terreus, Candida albicans, Scedosporium apiospermum, Scedosporium boydii, Lomentospora prolificans, Scedosporium aurantiacum, Scedosporium minutisporum, Exophiala dermatitidis, Geotrichum sp...
February 21, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28192433/review-of-21-cases-of-mycetoma-from-1991-to-2014-in-rio-de-janeiro-brazil
#2
Felipe Maurício Soeiro Sampaio, Bodo Wanke, Dayvison Francis Saraiva Freitas, Janice Mery Chicarino de Oliveira Coelho, Maria Clara Gutierrez Galhardo, Marcelo Rosandiski Lyra, Maria Cristina da Silva Lourenço, Rodrigo de Almeida Paes, Antonio Carlos Francesconi do Valle
Mycetoma is caused by the subcutaneous inoculation of filamentous fungi or aerobic filamentous bacteria that form grains in the tissue. The purpose of this study is to describe the epidemiologic, clinic, laboratory, and therapeutic characteristics of patients with mycetoma at the Oswaldo Cruz Foundation in Rio de Janeiro, Brazil, between 1991 and 2014. Twenty-one cases of mycetoma were included in the study. There was a predominance of male patients (1.3:1) and the average patient age was 46 years. The majority of the cases were from the Southeast region of Brazil and the feet were the most affected anatomical region (80...
February 13, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28178337/prospective-multicenter-german-study-on-pulmonary-colonization-with-scedosporium-lomentospora-species-in-cystic-fibrosis-epidemiology-and-new-association-factors
#3
Carsten Schwarz, Claudia Brandt, Elisabeth Antweiler, Alexander Krannich, Doris Staab, Sabina Schmitt-Grohé, Rainald Fischer, Dominik Hartl, Anja Thronicke, Kathrin Tintelnot
BACKGROUND: An increasing rate of respiratory colonization and infection in cystic fibrosis (CF) is caused by fungi of the Scedosporium apiospermum species complex or Lomentospora prolificans (Sac-Lp). These fungi rank second among the filamentous fungi colonizing the CF airways, after Aspergillus fumigatus. However, the epidemiology, clinical relevance and risk of pulmonary colonization with Sac-Lp are rarely understood in CF. The objective of the present prospective multicenter study was to study pathogen distribution and determine association factors of pulmonary Sac-Lp colonization in patients with CF...
2017: PloS One
https://www.readbyqxmd.com/read/28115402/surgical-resection-of-a-rare-cutaneous-manifestation-of-scedosporium-apiospermum-in-a-patient-who-underwent-renal-transplant
#4
A C S Stoneham, S E Stoneham, S A Wyllie, A N Pandya
A man aged 47 years who was immunosuppressed following renal transplantation for focal segmental glomerulosclerosis was referred to the Plastic Surgery team for management of a painful, chronic, granulomatous lesion of the right forearm. Serial ultrasound scans and MRI scans were not diagnostic, but microbiological specimens tested positive for the fungus Scedosporium apiospermum The renal transplant graft-which was failing-was removed, allowing him to cease immunosuppression. He then underwent a resection of the lesion and reconstruction with a split thickness skin graft...
January 23, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28088169/tenosynovitis-caused-by-scedosporium-apiospermum-infection-misdiagnosed-as-an-alternaria-species-a-case-report
#5
Choon-Mee Kim, Sung-Chul Lim, Joa Kim, Hoe-Soo Jang, Jong-Hun Chung, Na-Ra Yun, Dong-Min Kim, Piyush Jha, Babita Jha, Seok Won Kim, Sook Jin Jang, Jong Hee Shin
BACKGROUND: Scedosporium apiospermum, which can usually be isolated from soil, polluted stream water and decaying vegetation, is increasingly recognized as an opportunistic dematiaceous fungus. The mortality rate of infection in immunocompromised hosts is over 50%. S. apiospermum is commonly responsible for dermal and epidermal infections (i.e., mycetoma) after traumatic penetration. CASE PRESENTATION: A 73-year-old woman was admitted to our hospital complaining of painful swelling and tenderness on the dorsum of the proximal left wrist and hand...
January 14, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28053848/rapid-development-of-a-mycotic-aneurysm-of-the-intracranial-artery-secondary-to-scedosporium-apiospermum-sinusitis
#6
Yoshihiko Ogawa, Masatoshi Sato, Masato Tashiro, Masayuki Miyazaki, Kiyoshi Nagata, Nobuyuki Takahashi, Kei Kasahara, Koichi Izumikawa, Hisakazu Yano, Keiichi Mikasa
An 85-year-old man complained of a 2-month history of pain on the left side of his face. Brain computed tomography (CT) and magnetic resonance imaging/magnetic resonance angiography did not clearly show any intracranial abnormality and only showed fluid effusion in his left sphenoid sinus. Filamentous fungi were detected from the left sphenoid sinus specimen. The isolate was Scedosporium apiospermum. He was empirically treated with voriconazole, to which the isolate was susceptible. His consciousness decreased rapidly...
December 2016: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28035880/scedosporium-apiospermum-mycetoma-in-an-immunocompetent-patient-without-prior-lung-disease
#7
Kevin C Ma, Alejandro Pino, Navneet Narula, Meredith L Turetz
No abstract text is available yet for this article.
January 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28031271/voriconazole-mics-are-predictive-for-the-outcome-of-experimental-disseminated-scedosporiosis
#8
Adela Martin-Vicente, Josep Guarro, Gloria M González, Cornelia Lass-Flörl, Michaela Lackner, Javier Capilla
BACKGROUND: Scedosporiosis is associated with a mortality rate of up to 90% in patients suffering from disseminated infections. Recommended first-line treatment is voriconazole, but epidemiological cut-off values and clinical breakpoints have not been determined. OBJECTIVES: To correlate voriconazole treatment response in mice suffering from disseminated scedosporiosis with MIC values determined using CLSI broth microdilution, Etest (bioMérieux) and disc diffusion...
December 28, 2016: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28018093/clinico-radiological-improvement-in-an-immunocompetent-patient-presented-with-scedosporium-apiospermum-osteomyelitis
#9
Rahul Mohan, T S Gopakumar
Scedosporium apiospermum is frequently found as a saprophyte in soil, sewage and contaminated water. Its manifestations in immunocompetent patients are usually localised and in immunodeficient patients, it causes invasive systemic diseases. We are reporting the case of a 40-year-old male, who presented with pain, oedema and multiple discharging sinuses over the lateral aspect of the left foot with history of thorn prick. On examination, there were multiple active sinuses with tenderness and local rise in temperature...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/27702795/prevention-of-polymicrobial-biofilms-composed-of-pseudomonas-aeruginosa-and-pathogenic-fungi-by-essential-oils-from-selected-citrus-species
#10
Marina Pekmezovic, Ivana Aleksic, Aleksandra Barac, Valentina Arsic-Arsenijevic, Branka Vasiljevic, Jasmina Nikodinovic-Runic, Lidija Senerovic
Mixed microbial infections caused by Pseudomonas aeruginosa and pathogenic fungi are commonly found in patients with chronic infections and constitute a significant health care burden. The aim of this study was to address the potential polymicrobial antibiofilm activity of pompia and grapefruit essential oils (EOs). The mechanism of antimicrobial activity of EOs was analysed. EOs of pompia and grapefruit inhibited fungal growth with MIC concentrations between 50 and 250 mg L(-1), whereas no effect on P. aeruginosa growth was observed...
November 2016: Pathogens and Disease
https://www.readbyqxmd.com/read/27613266/scedosporium-apiospermum-a-rare-cause-of-malignant-otitis-externa
#11
Oliver McLaren, Christian Potter
A 79-year-old man, with a history of well-controlled diabetes mellitus, presented with left-sided otalgia. With an initial diagnosis of simple otitis externa, he was discharged on topical drops. He represented 2 months later with worsening otalgia and discharge. A diagnosis of malignant otitis externa was made based on clinical and radiological findings. Intravenous Tazocin and Gentamicin were given based on previous bacterial culture from ear swabs. The patient failed to improve and developed left-sided facial nerve palsy...
September 9, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27605714/discrimination-of-aspergillosis-mucormycosis-fusariosis-and-scedosporiosis-in-formalin-fixed-paraffin-embedded-tissue-specimens-by-use-of-multiple-real-time-quantitative-pcr-assays
#12
Elham Salehi, Mohammad T Hedayati, Jan Zoll, Haleh Rafati, Maryam Ghasemi, Atosa Doroudinia, Mahdi Abastabar, Ali Tolooe, Eveline Snelders, Henrich A van der Lee, Antonius J M M Rijs, Paul E Verweij, Seyedmojtaba Seyedmousavi, Willem J G Melchers
In a retrospective multicenter study, 102 formalin-fixed paraffin-embedded (FFPE) tissue specimens with histopathology results were tested. Two 4- to 5-μm FFPE tissue sections from each specimen were digested with proteinase K, followed by automated nucleic acid extraction. Multiple real-time quantitative PCR (qPCR) assays targeting the internal transcribed spacer 2 (ITS2) region of ribosomal DNA, using fluorescently labeled primers, was performed to identify clinically important genera and species of Aspergillus, Fusarium, Scedosporium, and the Mucormycetes The molecular identification was correlated with results from histological examination...
November 2016: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/27562696/antifungal-susceptibilities-of-non-aspergillus-filamentous-fungi-causing-invasive-infection-in-australia-support-for-current-antifungal-guideline-recommendations
#13
Catriona L Halliday, Sharon C-A Chen, Sarah E Kidd, Sebastian van Hal, Belinda Chapman, Christopher H Heath, Andie Lee, Karina J Kennedy, Kathryn Daveson, Tania C Sorrell, C Orla Morrissey, Deborah J Marriott, Monica A Slavin
Antifungal susceptibilities of non-Aspergillus filamentous fungal pathogens cannot always be inferred from their identification. Here we determined, using the Sensititre(®) YeastOne(®) YO10 panel, the in vitro activities of nine antifungal agents against 52 clinical isolates of emergent non-Aspergillus moulds representing 17 fungal groups in Australia. Isolates comprised Mucorales (n = 14), Scedosporium/Lomentospora spp. (n = 18) and a range of hyaline hyphomycetes (n = 9) and other dematiaceous fungi (n = 11)...
October 2016: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/27485921/cyclophilin-and-enolase-are-the-most-prevalent-conidial-antigens-of-lomentospora-prolificans-recognized-by-healthy-human-salivary-iga-and-cross-react-with-aspergillus-fumigatus
#14
Idoia Buldain, Andoni Ramirez-Garcia, Aize Pellon, Aitziber Antoran, Maria Jesus Sevilla, Aitor Rementeria, Fernando L Hernando
PURPOSE: The study of the immunocompetent airways immune response may provide important information to improve the therapeutic efficacy against Lomentospora (Scedosporium) prolificans. So, this study aimed to identify the most prevalent conidial antigens of this multiresistant fungus recognized by healthy human salivary immunoglobulin A, and to study their expression and cross-reactivity with other fungal species. EXPERIMENTAL DESIGN: Twenty saliva from immunocompetent donors were used to detect and identify the immunoreactive proteins by 2D immunoblotting and LC-MS/MS...
October 2016: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/27467209/environmental-screening-for-the-scedosporium-apiospermum-species-complex-in-public-parks-in-bangkok-thailand
#15
Natthanej Luplertlop, Potjaman Pumeesat, Watcharamat Muangkaew, Thanwa Wongsuk, Ana Alastruey-Izquierdo
The Scedosporium apiospermum species complex, comprising filamentous fungal species S. apiospermum sensu stricto, S. boydii, S. aurantiacum, S. dehoogii and S. minutispora, are important pathogens that cause a wide variety of infections. Although some species (S. boydii and S. apiospermum) have been isolated from patients in Thailand, no environmental surveys of these fungi have been performed in Thailand or surrounding countries. In this study, we isolated and identified species of these fungi from 68 soil and 16 water samples randomly collected from 10 parks in Bangkok...
2016: PloS One
https://www.readbyqxmd.com/read/27461998/new-record-of-scedosporium-dehoogii-from-chile-phylogeny-and-susceptibility-profiles-to-classic-and-novel-putative-antifungal-agents
#16
Eduardo Alvarez, Camila Sanhueza
BACKGROUND: Scedosporium species are considered emerging agents causing illness in immunocompromised patients. In Chile, only Scedosporium apiospermum, Scedosporium boydii and Lomentospora prolificans haven been reported previously. AIMS: The study aimed to characterize genetically Scedosporium dehoogii strains from Chilean soil samples, and assessed the antifungal susceptibility profile to classic and novel putative antifungal molecules. METHODS: In 2014, several samples were obtained during a survey of soil fungi in urban areas from Chile...
October 2016: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/27447804/favorable-outcomes-of-filamentous-fungal-endophthalmitis-following-aggressive-management
#17
Diem K Bui, Petros E Carvounis
PURPOSE: To evaluate the visual outcomes following aggressive management of filamentous fungal endophthalmitis with prompt surgical intervention and oral and intravitreal voriconazole. METHODS: Retrospective chart review study of consecutive patients with culture- or biopsy-proven filamentous fungal endophthalmitis treated at an academic referral center. Clinical characteristics, treatment regimens, and visual outcomes were analyzed. RESULTS: Included were 5 patients, 1 with endogenous endophthalmitis due to systemic fusariosis and 4 due to exogenous endophthalmitis (1 with Fusarium, 2 with Scedosporium apiospermum, and 1 with Glomerella spp...
July 22, 2016: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27355215/conidial-germination-in-scedosporium-apiospermum-s-aurantiacum-s-minutisporum-and-lomentospora-prolificans-influence-of-growth-conditions-and-antifungal-susceptibility-profiles
#18
Thaís Pereira de Mello, Ana Carolina Aor, Simone Santiago Carvalho de Oliveira, Marta Helena Branquinha, André Luis Souza Dos Santos
In the present study, we have investigated some growth conditions capable of inducing the conidial germination in Scedosporium apiospermum, S. aurantiacum, S. minutisporum and Lomentospora prolificans. Germination in Sabouraud medium (pH 7.0, 37ºC, 5% CO2) showed to be a typically time-dependent event, reaching ~75% in S. minutisporum and > 90% in S. apiospermum, S. aurantiacum and L. prolificans after 4 h. Similar germination rate was observed when conidia were incubated under different media and pHs. Contrarily, temperature and CO2 tension modulated the germination...
June 27, 2016: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/27309801/assessment-of-biofilm-formation-by-scedosporium-apiospermum-s-aurantiacum-s-minutisporum-and-lomentospora-prolificans
#19
Thaís P Mello, Ana Carolina Aor, Diego S Gonçalves, Sergio H Seabra, Marta H Branquinha, André L S Santos
Reported herein is the ability of Scedosporium apiospermum, S. aurantiacum, S. minutisporum and Lomentospora prolificans conidia to adhere, differentiate into hyphae and form biofilms on both polystyrene and lung epithelial cells. To different degrees, all of the fungi adhered to polystyrene after 4 h, with a predominance of those with germinated conidia. Prolonged fungi-polystyrene contact resulted in the formation of a monolayer of intertwined mycelia, which was identified as a typical biofilm structure due to the presence of a viable mycelial biomass, extracellular matrix and enhanced antifungal resistance...
August 2016: Biofouling
https://www.readbyqxmd.com/read/27238177/fungal-infection-of-cystic-fibrosis-patients-single-center-experience
#20
Barbara Garczewska, Sylwia Jarzynka, Jan Kuś, Wojciech Skorupa, Ewa Augustynowicz-Kopeć
INTRODUCTION: Cystic fibrosis (CF) is the most common monogenetic autosomal recessive disease in the human population. This systemic disease is characterized by changes in multiple organs, mainly in the lung tissue and digestive tract. More than 59% of CF patients become sensitized to fungal spores, mostly Aspergillus fumigatus. 5-15% of CF patients develop allergic bronchopulmonary aspergillosis. The aim of the study was to analyse the occurrence of yeast and filamentous fungi of the respiratory infections in CF patients and evaluation of drug resistance...
2016: Pneumonologia i Alergologia Polska
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