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https://www.readbyqxmd.com/read/28512704/pseudomonas-aeruginosa-inhibits-the-growth-of-scedosporium-and-lomentospora-in-vitro
#1
Sharon C-A Chen, Shilpa Patel, Wieland Meyer, Belinda Chapman, Hong Yu, Karen Byth, Peter G Middleton, Helena Nevalainen, Tania C Sorrell
In vitro bacterial-fungal interaction studies in cystic fibrosis (CF) have mainly focused on interactions between bacteria and Candida. Here we investigated the effect of Pseudomonas aeruginosa on the growth of Scedosporium/Lomentospora spp. Standard suspensions of P. aeruginosa (16 non-mucoid and nine mucoid isolates) were dropped onto paper disks, placed on lawns of Lomentospora prolificans (formerly Scedosporium prolificans) strain WM 14.140 or Scedosporium aurantiacum strain WM 11.78 on solid agar. The median inhibitory activity (mIz) was calculated for each fungal-bacterial combination...
May 16, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28504471/scedosporium-apiospermum-complex-in-cystic-fibrosis-should-we-treat
#2
Maria Noni, Anna Katelari, Aikaterini Kapi, Angeliki Stathi, George Dimopoulos, Stavros-Eleftherios Doudounakis
Species of the Scedosporium apiospermum complex are the second most frequent filamentous fungi after Aspergillus fumigatus that can be found in cystic fibrosis (CF). Mixed colonisation by S. apiospermum complex and A. fumigatus is also quite common. In this study we summarise all CF patients who were colonised by S. apiospermum complex during their childhood and we present two CF patients who were treated as fungal bronchitis due to S. apiospermum complex. The medical records of 400 CF patients were reviewed in order to identify those with positive respiratory cultures for S...
May 15, 2017: Mycoses
https://www.readbyqxmd.com/read/28490578/investigating-clinical-issues-by-genotyping-of-medically-important-fungi-why-and-how
#3
REVIEW
Alexandre Alanio, Marie Desnos-Ollivier, Dea Garcia-Hermoso, Stéphane Bretagne
Genotyping studies of medically important fungi have addressed elucidation of outbreaks, nosocomial transmissions, infection routes, and genotype-phenotype correlations, of which secondary resistance has been most intensively investigated. Two methods have emerged because of their high discriminatory power and reproducibility: multilocus sequence typing (MLST) and microsatellite length polymorphism (MLP) using short tandem repeat (STR) markers. MLST relies on single-nucleotide polymorphisms within the coding regions of housekeeping genes...
July 2017: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/28484941/proteomics-as-a-tool-to-identify-new-targets-against-aspergillus-and-scedosporium-in-the-context-of-cystic-fibrosis
#4
Andoni Ramirez-Garcia, Aize Pellon, Idoia Buldain, Aitziber Antoran, Aitana Arbizu-Delgado, Xabier Guruceaga, Aitor Rementeria, Fernando L Hernando
Cystic fibrosis (CF) is a genetic disorder that increases the risk of suffering microbial, including fungal, infections. In this paper, proteomics-based information was collated relating to secreted and cell wall proteins with potential medical applications from the most common filamentous fungi in CF, i.e., Aspergillus and Scedosporium/Lomentospora species. Among the Aspergillus fumigatus secreted allergens, β-1,3-endoglucanase, the alkaline protease 1 (Alp1/oryzin), Asp f 2, Asp f 13/15, chitinase, chitosanase, dipeptidyl-peptidase V (DppV), the metalloprotease Asp f 5, mitogillin/Asp f 1, and thioredoxin reductase receive a special mention...
May 8, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28456868/comparative-pathogenicity-of-lomentospora-prolificans-scedosporium-prolificans-isolates-from-mexican-patients
#5
Mariana Elizondo-Zertuche, Alexandra M Montoya, Efrén Robledo-Leal, Idalia Garza-Veloz, Ana L Sánchez-Núñez, Raquel Ballesteros-Elizondo, Gloria M González
We identified 11 Lomentospora prolificans isolates recovered from Mexican patients using phenotypic and molecular characteristics. The identification of isolates was assessed by internal transcribed spacer (ITS rDNA) sequencing. In vitro susceptibility to amphotericin B, fluconazole, voriconazole, posaconazole, caspofungin, anidulafungin and micafungin was determined according to Clinical and Laboratory Standards Institute (CLSI) procedures. Three isolates (07-2239, 11-2242 and 04-2673) were used to induce systemic infection in immunocompetent ICR mice...
April 29, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28442860/scedosporium-prolificans-septic-arthritis
#6
Collier S Pace, Jessica A Frankenhoff, Jonathan E Isaacs
No abstract text is available yet for this article.
April 2017: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/28422065/detection-of-1-3-%C3%AE-d-glucan-for-the-diagnosis-of-invasive-fungal-infection-in-liver-transplant-recipients
#7
Eric Levesque, Fadi Rizk, Zaid Noorah, Nawel Aït-Ammar, Catherine Cordonnier-Jourdin, Sarra El Anbassi, Christine Bonnal, Daniel Azoulay, Jean-Claude Merle, Françoise Botterel
Invasive fungal infections (IFI) are complications after liver transplantation involving high morbidity and mortality. (1,3)-β-d-glucan (BG) is a biomarker for IFI, but its utility remains uncertain. This study was designed to evaluate the impact of BG following their diagnosis. Between January 2013 and May 2016, 271 liver transplants were performed in our institution. Serum samples were tested for BG (Fungitell(®), Associates Cape Code Inc., Falmouth, MA, USA) at least weekly between liver transplantation and the discharge of patients...
April 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28420849/the-effective-treatment-of-lung-infection-due-to-scedosporium-prolificans-with-voriconazole-and-surgery
#8
Seiya Masukane, Yoshihiro Kitahara, Joe Okumoto, Keisuke Sasaki, Kikuo Nakano
Scedosporium prolificans is a fungus that has demonstrated resistance against most currently available antifungal agents and which causes a rapidly disseminating and potentially fatal infection. A 68-year-old woman presented with a fever and consolidation in the lung field. Her symptoms and inflammatory reaction did not improve despite treatment with tazobactam/piperacillin, meropenem, and micafungin. Scedosporium prolificans was detected from the patient's bronchial lavage fluid, and we initiated treatment with voriconazole...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28410611/recurrent-scedosporium-apiospermum-mycetoma-successfully-treated-by-surgical-excision-and-terbinafine-treatment-a-case-report-and-review-of-the-literature
#9
Eszter J Tóth, Géza R Nagy, Mónika Homa, Marianna Ábrók, Ildikó É Kiss, Gábor Nagy, Zsuzsanna Bata-Csörgő, Lajos Kemény, Edit Urbán, Csaba Vágvölgyi, Tamás Papp
BACKGROUND: Scedosporium apiospermum is an emerging opportunistic filamentous fungus, which is notorious for its high levels of antifungal-resistance. It is able to cause localized cutaneous or subcutaneous infections in both immunocompromised and immunocompetent persons, pulmonary infections in patients with predisposing pulmonary diseases and invasive mycoses in immunocompromised patients. Subcutaneous infections caused by this fungus frequently show chronic mycetomatous manifestation...
April 14, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28390190/systemic-scedosporium-prolificans-infection-in-an-11-month-old-border-collie-with-cobalamin-deficiency-secondary-to-selective-cobalamin-malabsorption-canine-imerslund-gr%C3%A3-sbeck-syndrome
#10
K Erles, A Mugford, D Barfield, T Leeb, P H Kook
An 11-month-old Border collie presented collapsed and continued to deteriorate rapidly despite supportive treatment. The dog had a history of failure to thrive and recurring respiratory infection. Laboratory abnormalities included neutrophilic leucocytosis, Heinz body anaemia, hyperammonaemia, hyperbilirubinaemia, proteinuria and hypocobalaminaemia. Post-mortem examination revealed multi-focal necrosis within the heart, kidneys, pancreas, liver, meninges and cerebral cortex. Fungal hyphae in lesions were identified as Scedosporium prolificans following culture...
April 8, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28362854/molecular-and-cellular-responses-of-the-pathogenic-fungus-lomentospora-prolificans-to-the-antifungal-drug-voriconazole
#11
Aize Pellon, Andoni Ramirez-Garcia, Idoia Buldain, Aitziber Antoran, Aitor Rementeria, Fernando L Hernando
The filamentous fungus Lomentospora (Scedosporium) prolificans is an emerging opportunistic pathogen associated with fatal infections in patients with disturbed immune function. Unfortunately, conventional therapies are hardly of any use against this fungus due to its intrinsic resistance. Therefore, we performed an integrated study of the L. prolificans responses to the first option to treat these mycoses, namely voriconazole, with the aim of unveiling mechanisms involved in the resistance to this compound...
2017: PloS One
https://www.readbyqxmd.com/read/28355462/changes-in-the-epidemiological-landscape-of-invasive-mould-infections-and-disease
#12
Cornelia Lass-Flörl, Manuel Cuenca-Estrella
Although a wide variety of pathogens are associated with invasive mould diseases, Aspergillus spp. have historically been one of the most common causative organisms. Most invasive mould infections are caused by members of the Aspergillus fumigatus species complex and an emerging issue is the occurrence of azole resistance in A. fumigatus, with resistance to amphotericin B documented in other Aspergillus spp. The epidemiology of invasive fungal disease has shifted in recent years as non-A. fumigatus Aspergillus spp...
March 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28333310/dihydroorotate-dehydrogenase-inhibitor-f901318-has-potent-in-vitro-activity-against-scedosporium-species-and-lomentospora-prolificans
#13
Nathan P Wiederhold, Derek Law, Michael Birch
Background: Scedosporium species and Lomentospora prolificans are increasing causes of invasive infections in immunocompromised hosts and many isolates are resistant to available antifungals. Our objective was to assess the in vitro potency of F901318, a member of the orotomide class of antifungals, against Scedosporium species and L. prolificans . Methods: The in vitro potency of F901318 was evaluated against 66 Scedosporium and 7 L. prolificans clinical isolates using the CLSI M38-A2 reference standard...
March 15, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28329186/fatal-bilateral-haemopneumothoraces-following-double-lung-transplantation-caused-by-pretransplant-colonization-by-scedosporium-apiospermum
#14
Francisco Javier Gonzalez-Garcia, Julia Guzman-Puche, Javier Redel-Montero, Paula Moreno
No abstract text is available yet for this article.
June 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28276198/anthropogenic-impact-on-environmental-filamentous-fungi-communities-along-the-mediterranean-littoral
#15
Mohammed Hashim Al-Yasiri, Anne-Cécile Normand, Jean-François Mauffrey, Stéphane Ranque
We hypothesised that anthropogenic influences impact the filamentous fungi community structure and that particular species or species patterns might serve as markers to characterise ecosystems. This study aimed to describe the filamentous fungi community structure in various biotopes along the Mediterranean shore that were exposed to various levels of anthropogenic influence. We sampled filamentous fungi from yellow-legged gull faecal samples at five study sites along the Mediterranean littoral in southern France...
March 9, 2017: Mycoses
https://www.readbyqxmd.com/read/28272067/prompt-diagnosis-of-scedosporium-apiospermum-soft-tissue-infection-life-saving-in-a-renal-transplant-recipient
#16
R Ghosh, P Mishra, P K Maiti, A Debnandi
Scedosporium apiospermum, an ubiquitous filamentous fungus, a known cause of mycetoma, is emerging as an opportunistic pathogen in immunocompromised individuals. We report a case of painful foot abscess in a renal allograft recipient on immunosuppressive therapy, which was clinically diagnosed as a suppurative bacterial abscess. Pus was aspirated, which showed septate, branching hyphal elements and culture on Sabouraud's dextrose agar yielded S. apiospermum, which was identified based on its macroscopic and microscopic features...
March 3, 2017: Journal of Postgraduate Medicine
https://www.readbyqxmd.com/read/28223376/bactericidal-and-fungicidal-activity-of-n-chlorotaurine-is-enhanced-in-cystic-fibrosis-sputum-medium
#17
Martina Gruber, Ivan Moser, Markus Nagl, Michaela Lackner
Lung infections with multiresistant pathogens are a major problem among patients suffering from cystic fibrosis (CF). N-Chlorotaurine (NCT), a microbicidal active chlorine compound with no development of resistance, is well tolerated upon inhalation. The aim of this study was to investigate the in vitro bactericidal and fungicidal activity of NCT in artificial sputum medium (ASM), which mimics the composition of CF mucus. The medium was inoculated with bacteria (Staphylococcus aureus, including some methicillin-resistant S...
May 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
#18
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 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28185887/fatal-disseminated-rasamsonia-infection-in-cystic-fibrosis-post-lung-transplantation
#19
Gina Hong, Marissa White, Noah Lechtzin, Natalie E West, Robin Avery, Heather Miller, Richard Lee, Robert J Lovari, Christian Massire, Lawrence B Blyn, Xinglun Liang, Deanna A Sutton, Jianmin Fu, Brian L Wickes, Nathan P Wiederhold, Sean X Zhang
BACKGROUND: Disseminated fungal infections are a known serious complication in individuals with cystic fibrosis (CF) following orthotopic lung transplantation. Aspergillus fumigatus and Scedosporium species are among the more common causes of invasive fungal infection in this population. However, it is also important for clinicians to be aware of other emerging fungal species which may require markedly different antifungal therapies. CASE SUMMARY: We describe the first laboratory-documented case of a fatal disseminated fungal infection caused by Rasamsonia aegroticola in a 21-year-old female CF patient status post-bilateral lung transplantation, which was only identified post-mortem...
March 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
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
#20
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
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