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https://www.readbyqxmd.com/read/27922925/update-on-nonmalignant-lesions-of-the-inferior-turbinate
#1
Jared M Goldfarb, David Goldfarb, Marc R Rosen
PURPOSE OF REVIEW: The inferior turbinates are routinely examined by otolaryngologists on anterior rhinoscopy and nasal endoscopy. Most lesions of the inferior turbinate are benign but can often be confused with malignancy. This review highlights the broad differential of nonmalignant lesions of the inferior turbinates and their management. RECENT FINDINGS: A variety of infectious, inflammatory, neoplastic, and vascular lesions may affect the inferior turbinates...
December 5, 2016: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/27921398/effects-of-rhizobacteria-paenibacillus-polymyxa-apec136-and-bacillus-subtilis-apec170-on-biocontrol-of-postharvest-pathogens-of-apple-fruits
#2
Young Soo Kim, Kotnala Balaraju, Yongho Jeon
In this study, plant growth-promoting rhizobacteria (PGPR) were evaluated as potential biocontrol agents against postharvest pathogens of apple fruits. In vitro bioassays revealed that, out of 30 isolates screened, isolates APEC136 and APEC170 had the most significant inhibitory effects against the mycelial growth of several fungal pathogens. Analysis of 16S ribosomal RNA (rRNA) sequences identified the two effective isolates as Paenibacillus polymyxa and Bacillus subtilis, respectively. The two strains showed greater growth in brain-heart infusion broth than in other growth media...
2016: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/27921344/uhplc-ms-based-hdac-assay-applied-to-bio-guided-microfractionation-of-fungal-extracts
#3
Vincent Zwick, Pierre-Marie Allard, Lucie Ory, Claudia A Simões-Pires, Laurence Marcourt, Katia Gindro, Jean-Luc Wolfender, Muriel Cuendet
INTRODUCTION: Histone deacetylases (HDAC) are considered as promising targets for cancer treatment. Today, four HDAC inhibitors, vorinostat, romidepsin, belinostat, and panobinostat, have been approved by the Food and Drug Administration (FDA) for cancer treatment, while others are in clinical trials. Among them, several are naturally occurring fungal metabolites. OBJECTIVE: To develop and optimise an enzyme assay for bio-guided identification of HDAC inhibitors in fungal strains...
December 5, 2016: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/27921081/a-fungus-specific-protein-domain-is-essential-for-rasa-mediated-morphogenetic-signaling-in-aspergillus-fumigatus
#4
Qusai Al Abdallah, Tiffany S Norton, Amy M Hill, Lawrence L LeClaire, Jarrod R Fortwendel
Ras proteins function as conserved regulators of eukaryotic growth and differentiation and are essential signaling proteins orchestrating virulence in pathogenic fungi. Here, we report the identification of a novel N-terminal domain of the RasA protein in the filamentous fungus Aspergillus fumigatus. Whereas this domain is absent in Ras homologs of higher eukaryotes, the N-terminal extension is conserved among fungi and is characterized by a short string of two to eight amino acids terminating in an invariant arginine...
November 2016: MSphere
https://www.readbyqxmd.com/read/27920657/disseminated-histoplasmosis-a-challenging-differential-diagnostic-consideration-for-suspected-malignant-lesions-in-the-digestive-tract
#5
Bernhard Doleschal, Therese Rödhammer, Oleksiy Tsybrovskyy, Karl J Aichberger, Franz Lang
Histoplasmosis is well characterized as an endemic fungal disease restricted to certain areas of the USA. In Middle Europe, most patients present with acute pulmonary symptoms after travelling to endemic areas. Here, we want to illustrate the case of a 67-year-old man who presented with persistent oral ulcers, hoarseness, dysphagia, diarrhea, and weight loss to our Department of Otorhinolaryngology in December 2014. He was a retired construction worker and had a history of soil-disruptive activities in Africa and Middle and South America during employment...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27919681/mutational-analysis-of-kex2-recognition-sites-and-a-disulfide-bond-in-tannase-from-aspergillus-oryzae
#6
Takuya Koseki, Motohiro Otsuka, Toshiyuki Mizuno, Yoshihito Shiono
Aspergillus oryzae tannase (AoTanA), which contains two Kex2 recognition sites at positions Arg311 and Arg316, consists of two subunits that are generated by the cleavage of tannase gene product by the Kex2 protease. Based on the crystal structure of feruloyl esterase from Aspergillus oryzae (AoFaeB), which has been classified as a member of the fungal tannase family, the catalytic triad residues of AoTanA are predicted to be Ser195, Asp455, and His501, with the serine and histidine residues brought together by a disulfide bond of the neighboring cysteines, Cys194 and Cys502...
December 2, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27919287/chemical-profiling-antimicrobial-and-insecticidal-evaluations-of-polygonum-hydropiper-l
#7
Muhammad Ayaz, Muhammad Junaid, Farhat Ullah, Abdul Sadiq, Muhammad Ovais, Waqar Ahmad, Sajjad Ahmad, Anwar Zeb
BACKGROUND: The emergence of multidrug resistant (MDR) pathogens is of great concern to the global health community. Our ability to effectively treat diseases is based on the discovery of potent drugs for the treatment of these challenging diseases. Traditional medicines are one of the major sources for the discovery of safe, effective and economical drug candidates. In order to validate its antibacterial, antifungal and insecticidal potentials with respect to traditional uses, we have screened for the first time Polygonum hydropiper against pathogenic bacterial, fungal strains and a variety of insects...
December 5, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27918884/acute-invasive-fungal-rhinosinusitis-presentation-of-19-cases-review-of-the-literature-and-a-new-classification-system
#8
Onur Ergun, Emel Tahir, Oguz Kuscu, Burce Ozgen, Taner Yilmaz
PURPOSE: The aim of this study was to determine the correlation between acute invasive fungal rhinosinusitis (AIFRS) and underlying diseases, micro-organisms, presenting symptoms, extent of disease, radiologic findings, and outcomes and propose a new classification system. MATERIALS AND METHODS: The data of 19 AIFRS cases were analyzed retrospectively. Magnetic resonance imaging and computed tomography were performed in all patients preoperatively. All patients underwent at least 1 surgical debridement...
November 15, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27917929/adsorption-of-methylene-blue-on-an-agro-waste-oiltea-shell-with-and-without-fungal-treatment
#9
Jiayang Liu, Enzhong Li, Xiaojuan You, Changwei Hu, Qingguo Huang
A lignocellulosic waste oiltea shell (OTS) was evaluated as an inexpensive sorbent to remove methylene blue (MB) from aqueous solution. Fungal treatment of OTS increased the MB adsorption by modifying the physicochemical properties of OTS and simultaneously produced laccase as a beneficial co-product. Without fungal treatment, the maximum amount of adsorption (qm) of MB by OTS was 64.4 mg/g, whereas the treatment with fungus Pycnoporus sp. and Trametes versicolor increased qm up to 72.5 mg/g and 85.7 mg/g, respectively...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917031/a-new-perspective-on-sustainable-soil-remediation-case-study-suggests-novel-fungal-genera-could-facilitate-in-situ-biodegradation-of-hazardous-contaminants
#10
L M Czaplicki, E Cooper, P L Ferguson, H M Stapleton, R Vilgalys, C K Gunsch
Deciding upon a cost effective and sustainable method to address soil pollution is a challenge for many remedial project managers. High pressure to quickly achieve cleanup goals pushes for energy-intensive remedies that rapidly address the contaminants of concern with established technologies, often leaving little room for research and development especially for slower treatment technologies, such as bioremediation, for the more heavily polluted sites. In the present case study, new genomic approaches have been leveraged to assess fungal biostimulation potential in soils polluted with particularly persistent hydrophobic contaminants...
2016: Remediation (N Y)
https://www.readbyqxmd.com/read/27915337/quercetin-assists-fluconazole-to-inhibit-biofilm-formations-of-fluconazole-resistant-candida-albicans-in-in-vitro-and-in-vivo-antifungal-managements-of-vulvovaginal-candidiasis
#11
Mei Gao, Hui Wang, LiJuan Zhu
BACKGROUND: Vulvovaginal candidiasis (VVC) is a common gynecological disease. Candida albicans is believed to be mainly implicated in VVC occurrence, the biofilm of which is one of the virulence factors responsible for resistance to traditional antifungal agents especially to fluconazole (FCZ). Quercetin (QCT) is a dietary flavonoid and has been demonstrated to be antifungal against C. albicans biofilm. METHODS: 17 C. albicans isolates including 15 clinical ones isolated from VVC patients were employed to investigate the effects of QCT and/or FCZ on the inhibition of C...
November 30, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27915304/invasive-aspergillosis-in-acute-myeloid-leukemia-are-we-making-progress-in-reducing-mortality
#12
Giulia Dragonetti, Marianna Criscuolo, Luana Fianchi, Livio Pagano
The incidence of invasive fungal disease (IFD) has varied during the last decades. However, over the years, we have observed a progressive reduction of mortality, mainly due to wider use of prophylactic antifungal therapy (i.e., new azoles, such as posaconazole), the development of new and more effective antifungal drugs (lipid compounds of amphotericin B, candins, and azoles of the previous generation) and improvement of diagnostic tools. Based on a number of international studies across three decades, the attributable mortality rate for IFD and invasive aspergillosis (IA) among patients with acute myeloid leukemia (AML) has progressively declined...
December 2, 2016: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/27913461/primary-immune-deficiencies-with-defects-in-neutrophil-function
#13
Mary C Dinauer
Immune deficiencies resulting from inherited defects in neutrophil function have revealed important features of the innate immune response. Although sharing an increased susceptibility to bacterial and fungal infections, these disorders each have distinctive features in their clinical manifestations and characteristic microbial pathogens. This review provides an update on several genetic disorders with impaired neutrophil function, their pathogenesis, and treatment strategies. These include chronic granulomatous disease, which results from inactivating mutations in the superoxide-generating nicotinamide dinucleotide phosphate oxidase...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27910791/effects-of-ethyl-acetate-extracts-from-the-polycephalomyces-nipponicus-isolate-cod-mk1201-ascomycetes-against-human-pathogenic-bacteria-and-a-breast-cancer-cell-line
#14
Kusavadee Sangdee, Prapairat Seephonkai, Benjaporn Buranrat, Nilawan Surapong, Aphidech Sangdee
This study aimed to identify a suitable organic solvent for extracting bioactive compounds from Polycephalomyces nipponicus and to evaluate the antibacterial and anticancer activities of the extracts obtained. Only extracts obtained with ethyl acetate exhibited antibacterial activity, so ethyl acetate was chosen for large-scale extraction. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) against Gram-positive and Gram-negative human pathogenic bacteria of the 3 ethyl acetate-derived extracts-ethyl acetate extract from P...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27910211/comparison-of-serum-concentrations-between-different-dosing-strategies-of-posaconazole-delayed-release-tablet-at-a-large-academic-medical-centre
#15
Sarah Welch, Andrea Pallotta, Catherine Weber, Caitlin Siebenaller, Eric Cober, Elizabeth Neuner
It is unclear if the prophylaxis dose of 300 mg/day is sufficient for achieving serum concentrations targeting the treatment of invasive fungal infections. To evaluate differences between PCZ serum concentrations in patients receiving the DRT vs the OS and in patients receiving higher doses than 300 mg/day of the DRT, a retrospective review was conducted on inpatients who received PCZ for either treatment or prophylaxis. Baseline demographics including comorbid conditions, indication and dose of therapy were collected...
December 1, 2016: Mycoses
https://www.readbyqxmd.com/read/27909927/fungal-biomass-as-biosorbent-for-the-removal-of-acid-blue-161-dye-in-aqueous-solution
#16
Mayerly Johana Puchana-Rosero, Eder C Lima, Santiago Ortiz-Monsalve, Bianca Mella, Dimitrius da Costa, Eduardo Poll, Mariliz Gutterres
Physical and thermal treatment was used to inactivate Trametes sp. SC-10 fungus. The resulting biomass was named BTV, characterized by analytical techniques such as SEM, EDX, FTIR, BET, and Barrett-Joyner-Halenda (BJH) model. pH, kinetic, and equilibrium adsorption studies with the Acid Blue 161 (AB-161) dye were investigated at 303.15 K. The kinetics of the biosorption process were examined at 600.00 and 1300 mg L(-1), using pseudo-first-order, pseudo-second-order, and Avrami fractional-order models. The maximum biosorption capacity of BTV for AB-161 dye was 221...
December 2, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27907120/structural-and-functional-elucidation-of-yeast-lanosterol-14%C3%AE-demethylase-in-complex-with-agrochemical-antifungals
#17
Joel D A Tyndall, Manya Sabherwal, Alia A Sagatova, Mikhail V Keniya, Jacopo Negroni, Rajni K Wilson, Matthew A Woods, Klaus Tietjen, Brian C Monk
Azole antifungals, known as demethylase inhibitors (DMIs), target sterol 14α-demethylase (CYP51) in the ergosterol biosynthetic pathway of fungal pathogens of both plants and humans. DMIs remain the treatment of choice in crop protection against a wide range of fungal phytopathogens that have the potential to reduce crop yields and threaten food security. We used a yeast membrane protein expression system to overexpress recombinant hexahistidine-tagged S. cerevisiae lanosterol 14α-demethylase and the Y140F or Y140H mutants of this enzyme as surrogates in order characterize interactions with DMIs...
2016: PloS One
https://www.readbyqxmd.com/read/27906037/integrated-therapy-for-hiv-and-cryptococcosis
#18
REVIEW
Sirawat Srichatrapimuk, Somnuek Sungkanuparph
Cryptococcosis has been one of the most common opportunistic infections and causes of mortality among HIV-infected patients, especially in resource-limited countries. Cryptococcal meningitis is the most common form of cryptococcosis. Laboratory diagnosis of cryptococcosis includes direct microscopic examination, isolation of Cryptococcus from a clinical specimen, and detection of cryptococcal antigen. Without appropriate treatment, cryptococcosis is fatal. Early diagnosis and treatment is the key to treatment success...
November 29, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27905900/prevalence-clinical-and-economic-burden-of-mucormycosis-related-hospitalizations-in-the-united-states-a-retrospective-study
#19
Dimitrios P Kontoyiannis, Hongbo Yang, Jinlin Song, Sneha S Kelkar, Xi Yang, Nkechi Azie, Rachel Harrington, Alan Fan, Edward Lee, James R Spalding
BACKGROUND: Mucormycosis is a rare but devastating fungal infection primarily affecting immunocompromised patients such as those with hematological malignancy, bone marrow and solid organ transplantation, and patients with diabetes, and, even more rarely, immunocompetent patients. The objective of this study was to assess the prevalence and burden, both clinical and economic, of mucormycosis among hospitalized patients in the U.S. METHODS: This is a retrospective study using the Premier Perspective(TM) Comparative Database, with more than 560 participating hospitals covering 104 million patients (January 2005-June 2014)...
December 1, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27904061/diagnosis-and-treatment-of-mucormycosis-in-patients-with-hematological-malignancies
#20
Yuki Asano-Mori
The risk of invasive fungal infections (IFIs) is extremely high in patients with hematological malignancies due to the prolonged and profound neutropenia and immunosuppression after chemotherapy and hematopoietic stem cell transplantation. There has been increasing interest in mucormycosis despite its relatively uncommon occurrence, because occasional breakthrough infections have been observed under anti-aspergillus prophylaxis. The aggressive nature of mucormycosis easily leads to high mortality because of delays in diagnosis and incorrect treatment decisions, which are due in part to lack of adjunctive diagnostic tools and having similar clinical and radiological features with aspergillosis...
2016: Medical Mycology Journal
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