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Trichosporon

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https://www.readbyqxmd.com/read/28695994/comparative-efficacy-of-bentonite-clay-activated-charcoal-and-trichosporon-mycotoxinivorans-in-regulating-the-feed-to-tissue-transfer-of-mycotoxins
#1
Sheraz Ahmed Bhatti, Muhammad Zargham Khan, Zahoor Ul Hassan, Muhammad Kashif Saleemi, Muhammad Saqib, Aisha Khatoon, Masood Akhter
BACKGROUND: Mycotoxins contamination in animal products and by-product is a persistent threat to food and feed industry. The present study was designed to evaluate the comparative inhibitory effects of bentonite (BN), activated charcoal (AC) and a newly discovered yeast Trichosporon mycotoxinivorans (TM) against feed-to-tissue transfer of mycotoxins. RESULTS: A dose dependent increase as determined by HPLC, in the residues of AFB1 and OTA was exhibited in the groups of birds fed AFB1 and OTA alone...
July 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28666148/corn-bran-bioprocessing-development-of-an-integrated-process-for-microbial-lipids-production
#2
Jung-Eun Lee, Praveen V Vadlani, Jon Faubion
This study investigated the potential of corn bran as a feedstock for microbial lipid production using oleaginous yeast, Trichosporon oleaginosus ATCC20509. Different conditions (solid loading of biomass, acid loading, and pretreatment duration) were applied to optimize pretreatment processes using the Box-Behnken design. The highest sugar yield of 0.53g/g was obtained from corn bran hydrolysates at a pretreatment condition of 5% solid loading and 1% acid loading for 30min. Compared with synthetic media, up to 50% higher lipid accumulations in T...
June 27, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28663328/comparative-evaluation-of-six-chromogenic-media-for-presumptive-yeast-identification
#3
Alessandra Vecchione, Walter Florio, Francesco Celandroni, Simona Barnini, Antonella Lupetti, Emilia Ghelardi
AIMS: The present study was undertaken to evaluate the discrimination ability of six chromogenic media in presumptive yeast identification. METHODS: We analysed 108 clinical isolates and reference strains belonging to eight different species: Candida albicans,Candida dubliniensis, Candida tropicalis, Candida krusei, Candida glabrata, Candida parapsilosis,Candida lusitaniae and Trichosporon mucoides. RESULTS: C. albicans, C. tropicalis and C...
June 29, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28662427/oral-mycoses-in-avian-scavengers-exposed-to-antibiotics-from-livestock-farming
#4
Aida Pitarch, Concha Gil, Guillermo Blanco
The exposure to antimicrobial pharmaceuticals as environmental contaminants can exert direct and indirect detrimental effects on health of wildlife. Fungal infections pose a major threat to domestic, captive-housed wild and free-ranging wild animals worldwide. However, little is known about their role in disease in birds in the wild. Here, we evaluated the incidence of thrush-like lesions in the oral cavity of wild nestling cinereous vultures (Aegypius monachus), griffon vultures (Gyps fulvus), Egyptian vultures (Neophron percnopterus) and golden eagles (Aquila chrysaetos) exposed to veterinary antibiotics via the consumption of medicated livestock carcasses...
June 26, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28636483/lumping-kinetics-of-abe-fermentation-wastewater-treatment-by-oleaginous-yeast-trichosporon-cutaneum
#5
Can Wang, Chao Huang, Xue-Fang Chen, Hai-Rong Zhang, Lian Xiong, Xiao-Mei Li, Hai-Jun Guo, Gao-Xiang Qi, Xiao-Qing Lin, Xin-De Chen
Lumping kinetics models were built for the biological treatment of ABE (acetone-butanol-ethanol) fermentation wastewater by oleaginous yeast Trichosporon cutaneum with different fermentation temperatures. Compared with high temperature (33°C, 306 K) and low temperature (23°C, 296 K), medium temperature (28°C, 301 K) was beneficial for the cell growth and COD degradation during the early stage of fermentation but the final yeast biomass and COD removal were influenced little. By lumping method, the materials in the bioconversion network were divided into five lumps (COD, lipid, polysaccharide, other intracellular products, other extracellular products), and the nine rate constants (k1-k9) for the models can well explain the bioconversion laws...
June 21, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28624998/efficient-conversion-of-fructose-based-biomass-into-lipids-with-trichosporon-fermentans-under-phosphate-limited-conditions
#6
Ruiqi Bao, Xiangying Wu, Sasa Liu, Tongzhou Xie, Chenxu Yu, Xinping Lin
Limiting nitrogen supply has been routinely used as the master regulator to direct lipid biosynthesis. However, this strategy does not work with nitrogen-rich substrates, such as Jerusalem artichoke (JA), a fructose-based biomass, while it is difficult to obtain a high carbon-to-nitrogen (C/N) molar ratio. In this study, an alternative strategy to promote lipid accumulation by the oleaginous yeast Trichosporon fermentans CICC 1368 was developed by limiting phosphorous supply, and this strategy was implemented with JA hydrolysate as substrate...
June 17, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28623792/variations-in-microbial-community-and-ciprofloxacin-removal-in-rhizospheric-soils-between-two-cultivars-of-brassica-parachinensis-l
#7
Xian-Pei Huang, Ce-Hui Mo, Jiao Yu, Hai-Ming Zhao, Can Meng, Yan-Wen Li, Hui Li, Quan-Ying Cai, Ming-Hung Wong
Ciprofloxacin (CIP) is one of most used quinolone antibiotics detected frequently in agricultural soils and vegetables. In the present study, variations in microbial community and CIP removal in rhizospheric soils between two cultivars of Brassica parachinensis L. that accumulate higher and lower CIP (Sijiu and Cutai, respectively) were investigated under CIP stress (0mg/kg in CK, 2.94mg/kg in T1, and 67.11mg/kg in T2). The removal rates of CIP in rhizospheric soils of cultivar Sijiu were higher than those of cultivar Cutai, with a significant difference in T2 (48...
June 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28616071/combined-de-novo-and-ex-novo-lipid-fermentation-in-a-mix-medium-of-corncob-acid-hydrolysate-and-soybean-oil-by-trichosporon-dermatis
#8
Chao Huang, Mu-Tan Luo, Xue-Fang Chen, Gao-Xiang Qi, Lian Xiong, Xiao-Qing Lin, Can Wang, Hai-Long Li, Xin-De Chen
BACKGROUND: Microbial oil is one important bio-product for its important function in energy, chemical, and food industry. Finding suitable substrates is one key issue for its industrial application. Both hydrophilic and hydrophobic substrates can be utilized by oleaginous microorganisms with two different bio-pathways ("de novo" lipid fermentation and "ex novo" lipid fermentation). To date, most of the research on lipid fermentation has focused mainly on only one fermentation pathway and little work was carried out on both "de novo" and "ex novo" lipid fermentation simultaneously; thus, the advantages of both lipid fermentation cannot be fulfilled comprehensively...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28612088/trichosporon-inkin-disseminated-infection
#9
Laurie-Anne Thion, Aymeric Coutard, Odile Eloy, Fabrice Bruneel
No abstract text is available yet for this article.
June 13, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28594608/etiology-of-onychomycosis-in-patients-turkey
#10
Fatma Pelin Cengiz, Bengu Cevirgen Cemil, Nazan Emiroglu, Anılgülsel Bahalı, Dilek Biyik Ozkaya, Ozlem Su, Nahide Onsun
BACKGROUND: Onychomycosis is the chronic infection of the nails, and it is caused by dermatophytes, Candida, non- dermatophyte molds, Trichosporon genus. METHODS: A retrospective analysis of 225 cases with onychomycosis, diagnosed in a 27-month period at the Department of Dermatoveneorology, Bezmialem Vakif University in Istanbul, and confirmed with culture. RESULTS: The age of patients ranged from 2 to 87 years (41.59 ± 17.61) and females were more commonly affected (120 cases, 53...
June 8, 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28584756/disseminated-cutaneous-trichosporonosis-in-an-adult-bone-marrow-transplant-patient
#11
A M Y Yong, S S Yang, K B Tan, S A Ho
The Trichosporon species are yeast-like opportunistic pathogens in immunocompromised patients. Trichosporon asahii infections have been reported in pediatric bone marrow transplant (BMT) patients. However, its incidence is low in the adult literature. A 52-year-old Chinese woman who was diagnosed with acute myeloid leukemia received induction chemotherapy and underwent allogenic bone marrow transplant, which was complicated by a relapse and required salvage chemotherapy. She developed persistent non-neutropenic fever secondary to presumed hepatosplenic candidiasis...
May 2017: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/28566664/remarkable-works-and-cases-in-the-history-of-medical-mycology-in-japan
#12
Katsutaro Nishimoto
Several pathogenic fungi and cases related to Japanese medical mycologists were reviewed. Trichosporon inkin (as Sarcinomyces inkin) was reported as a pathogen of scrotal lesion by Oho in 1921, and Trichosporon asahii was isolated from generalized keratotic lesions in 1922 by Akagi in Japan. They were once included in Trichophyton beigelii, but then based on revision using DNA molecular technology, were returned to their original names.Microsporum ferrugineum was reported by Ota as a causative dermatophyte of tinea capitis in Japan and surrounding areas...
2017: Medical Mycology Journal
https://www.readbyqxmd.com/read/28562512/an-unusual-cause-of-fever-and-rash-in-a-child-with-severe-aplastic-anemia
#13
Elis Yuexian Lee, Wen Quan Derrick Lian, Prasad Iyer, Rajat Bhattacharyya
A 4-year-old girl with severe aplastic anemia and 2 previous failed T-depleted haploidentical peripheral blood stem cell transplants developed persistent neutropenic fever and multiple erythematous maculopapular rashes 2 days after her third T-replete haploidentical bone marrow transplant. Skin biopsy confirmed the diagnosis of Trichosporon asahii infection. She was on caspofungin prophylaxis which is not effective against Trichosporon. A high index of suspicion, prompt investigation, and appropriate treatment with voriconazole for 4 months was instrumental in controlling the infection and she remains well presently 9 months posttransplant with full donor chimerism and free from infection...
May 29, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28547342/trichosporon-asteroides-isolated-from-cutaneous-lesions-of-a-suspected-case-of-paracoccidioidomycosis-ceti-in-a-bottlenose-dolphin-tursiops-truncatus
#14
Keiichi Ueda, Ichiro Nakamura, Eiko Nakagawa Itano, Kazunori Takemura, Yasutomo Nakazato, Ayako Sano
"Paracoccidioidomycosis ceti" is a rare zoonotic fungal infection affecting dolphins and is endemic worldwide. The causative agents are Paracoccidioides species; however, it is impossible to isolate the fungal species. We isolated Trichosporon asteroides from multifocal, irregularly raised skin lesions on a female bottlenose dolphin (Tursiops truncatus) captured off coast of Japan, which was suspected to have "paracoccidioidomycosis ceti." An abundance of round, yeast-like cells was detected in a potassium hydroxide direct-mount specimen of the skin samples; however, nested PCR targeting the partial sequence of 43-kDa glycoprotein-coding gene correspondent to Paracoccidioides sp...
May 25, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28539340/evaluating-and-improving-vitek-ms%C3%A2-for-identification-of-clinically-relevant-species-of-trichosporon-and-the-close-related-genera-cutaneotrichosporon-and-apiotrichum
#15
João N de Almeida, Viviane M Favero Gimenes, Elaine C Francisco, Lumena P Machado Siqueira, Renato K Gonçalves de Almeida, Juliette Guitard, Christophe Hennequin, Arnaldo Lopes Colombo, Gil Benard, Flavia Rossi
Trichosporon species are relevant etiologic agents of hospital-acquired infections. High mortality rates are attributed to Trichosporon deep-seated infections in immunocompromised individuals, being fast and accurate species identification relevant for hasting the best-targeted therapy. Recently, Trichosporon taxonomy has been re-assessed and three genera have been proposed for the pathogenic species: Trichosporon, Cutaneotrichosporon and Apiotrichum Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) has replaced old phenotypic methods for microorganism's identification in clinical laboratories, but spectral profile databases have to be evaluated and improved for optimal species identification performance...
May 24, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28510690/trichosporonosis-in-pediatric-patients-with-a-hematologic-disorder
#16
Catherine E Foster, Morven S Edwards, Julienne Brackett, Deborah A Schady, C Mary Healy, Carol J Baker
Background.: Trichosporonosis is an emerging and often fatal opportunistic fungal infection in immunocompromised patients, particularly those with hematologic malignancy, but data in children are lacking. Methods.: We report here 3 cases of invasive infection caused by Trichosporon asahii in pediatric patients with acute lymphoblastic leukemia at Texas Children's Hospital in Houston, Texas. We also conducted a literature review and identified 16 additional reports of pediatric patients with invasive T asahii infection and an underlying malignant or nonmalignant hematologic disorder...
May 16, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28506251/diversity-in-vitro-virulence-traits-and-antifungal-susceptibility-pattern-of-gastrointestinal-yeast-flora-of-healthy-poultry-gallus-gallus-domesticus
#17
Supram Hosuru Subramanya, Nawal Kishor Sharan, Bharat Prasad Baral, Deependra Hamal, Niranjan Nayak, Peralam Yegneswaran Prakash, Brijesh Sathian, Indira Bairy, Shishir Gokhale
BACKGROUND: Poultry farming and consumption of poultry (Gallus gallus domesticus) meat and eggs are common gastronomical practices worldwide. Till now, a detailed understanding about the gut colonisation of Gallus gallus domesticus by yeasts and their virulence properties and drug resistance patterns in available literature remain sparse. This study was undertaken to explore this prevalent issue. RESULTS: A total of 103 specimens of fresh droppings of broiler chickens (commercial G domesticus) and domesticated chickens (domesticated G domesticus) were collected from the breeding sites...
May 15, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28478967/-fusarioses-to-fusarium%C3%A2-solani-in-an-immunocompetent-and-immunocompromised-diagnosed-in-military-hospital-of-rabat
#18
A T Bissan, M Iken, M Doumbia, N Ou-Khedda, M El Alaoui, B Lmimouni
Fusarium are ubiquitous hyalohyphomycoses, usually encountered in the soil. They are the second unusual fungal pathogens after the Trichosporon. Intertrigo Fusarium sp. is a rare achievement. We report a case of intertrigos interorteils in an immunocompetent 45years old and a same case associated with a total onychodystrophy in an immunocompromised 75year-old. Laboratory diagnosis has found Fusarium solani confirmed with the positivity of a pure culture twice. Good progress was noted with terbinafine treatment...
May 3, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28458355/growth-inhibition-of-an-opportunistic-yeast-pathogen-trichosporon-asahii-by-staphylococcus-epidermidis
#19
Reiko Ikeda, Yuki Ogasawara, Kazuhiko Takatori, Tomoe Ichikawa, Miki Nakajima, Kazuko Harigaya, Miho Watanabe, Erika Okudaira, Hanari Yoshikawa, Kazuki Yanagisawa
In the co-culture of Staphylococcus epidermidis and Trichosporon asahii, a fungal pathogen, it was observed that live S. epidermidis inhibited the growth of T. asahii. Soluble active anti-T. asahii substances were speculated to be produced by S. epidermidis in culture medium. Using (1)H- and (13)C-NMR spectra and electron ionization-high resolution mass spectrometry (HR-negative-FAB-MS), we separated the active molecule and identified it as lactic acid. Commercially available L-lactic acid and D-lactic acid inhibited the growth of T...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28454002/characterization-of-lipid-accumulation-and-lipidome-analysis-in-the-oleaginous-yeasts-rhodosporidium-azoricum-and-trichosporon-oleaginosus
#20
Claudia Capusoni, Valentina Rodighiero, Daniela Cucchetti, Silvia Galafassi, Daniele Bianchi, Giuliana Franzosi, Concetta Compagno
The influence of cultural conditions on lipid production was investigated in two species, Trichosporon oleaginosus and Rhodosporidium azoricum. We showed that nitrogen limitation is not the main factor triggering the mechanism of lipid accumulation in T. oleaginosus. Moreover, a scarce availability of oxygen negatively affected lipid synthesis to a lesser extent in T. oleaginosus than in R. azoricum. This highlights how the importance of controlling fermentation parameters is strictly linked to the yeast species employed...
August 2017: Bioresource Technology
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