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https://www.readbyqxmd.com/read/28102738/optimization-and-partial-characterization-of-intracellular-anticandidal-protein-from-aspergillus-giganteus-mtcc-8408-using-taguchi-doe
#1
Debashis Dutta, Mira Debnath Das
A new intracellular antifungal protein (afp) production with average molecular weight 24.3 kDa and yield of 0.65 ± 0.1 mg/gram dry cell weight (gdcw) of mycelia in submerged fermentation of Aspergillus giganteus MTCC 8408 was optimized. Taguchi's DOE (design of experiment) L27 orthogonal array (OA) was constructed using Qualitek-4 software with 8 most influensive factors namely, culture pH, temperature, slant age, inoculum volume, agitation and KH2PO4. Scanning electron microscopy (SEM) was used to correlate the effect of selected factors on fungal cell morphology and afp production...
January 19, 2017: Bioengineered
https://www.readbyqxmd.com/read/28101316/defining-invasive-fungal-infection-risk-in-hematological-malignancies-a-new-tool-for-clinical-practice
#2
Benedetta Rambaldi, Domenico Russo, Livio Pagano
No abstract text is available yet for this article.
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28101308/antibacterial-resistance-in-patients-with-hematopoietic-stem-cell-transplantation
#3
REVIEW
Sehnaz Alp, Murat Akova
Recipients of hematopoietic stem cell transplantation (HSCT) are at substantial risk of bacterial, fungal, viral, and parasitic infections depending on the time elapsed since transplantation, presence of graft-versus-host disease (GVHD), and the degree of immunosuppression. Infectious complications in HSCT recipients are associated with high morbidity and mortality. Bacterial infections constitute the major cause of infectious complications, especially in the early post-transplant period. The emergence of antibacterial resistance complicates the management of bacterial infections in this patient group...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28101187/severe-pneumonia-due-to-infection-with-candida-krusei-in-a-case-of-suspected-middle-east-respiratory-syndrome-a-case-report-and-literature-review
#4
Mingming Tan, Junwei Wang, Peiyang Hu, Bin Wang, Wanghua Xu, Jiao Chen
Candida krusei (C. krusei) pneumonia is a rare infection that is frequently associated with a poor outcome. The present study reports an unusual case of C. krusei pneumonia that was initially suspected to be a Middle East respiratory syndrome (MERS) case. A 64-year-old Saudi Arabian male patient was admitted to our hospital with complaints of cough and dyspnea that persisted for 6 days. The patient presented fever (oral temperature, 38.5°C) and slight tachypnea (25 respirations/min). A chest computerized tomography demonstrated unclear lung fields, diffuse pathological changes in the two lungs and multiple lymphadenectasis in the retrocaval and para-aortic arch area...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28100598/molecular-and-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry-characterization-of-clinically-significant-melanized-fungi-in-india
#5
Ashutosh Singh, Pradeep Kumar Singh, Anil Kumar, Jagdish Chander, Geetika Khanna, Pradip Roy, Jacques F Meis, Anuradha Chowdhary
Melanized or black fungi are a heterogeneous group of fungi causing cutaneous to systemic diseases with high mortality. These fungi are rarely reported as agent of human infections primarily due to difficulties in their classical identification. In this study we examined using molecular methods and MALDI-TOF MS the diversity of melanized fungi (MF) isolated from patients in 19 medical centers in India. Overall, during a 4-year period, 718 (5.3%) clinical specimens yielded MF. Of these, 72 (10%) isolates had clinical significance and were identified primarily by sequencing the ITS and LSU regions...
January 18, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28100597/investigation-of-a-candida-guilliermondii-pseudo-outbreak-reveals-a-novel-source-of-laboratory-contamination
#6
James E Kirby, Westyn Branch-Elliman, Mary T LaSalvia, Lorinda Longhi, Matthew MacKechnie, Grigoriy Urman, Linda M Baldini, Fatima R Muriel, Bernadette Sullivan, David S Yassa, Howard S Gold, Trevor K Wagner, Daniel J Diekema, Sharon B Wright
Candida guilliermondii was isolated from sterile specimens with increasing frequency over a several-month period despite a paucity of clinical evidence suggesting true Candida infections. However, a healthcare-associated outbreak was strongly considered due to growth patterns in the microbiology laboratory more consistent with true infection than environmental contamination. Therefore, an extensive investigation was performed to identify its cause. With the exception of one case, patient clinical courses were not consistent with true invasive fungal infections...
January 18, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28100297/transcriptional-analysis-of-mating-and-pre-infection-stages-of-the-anther-smut-microbotryum-lychnidis-dioicae
#7
Su San Toh, Zehua Chen, David J Schultz, Christina A Cuomo, Michael H Perlin
Microbotryum lychnidis-dioicae is an obligate biotrophic parasite of the wildflower species, Silene latifolia. This dikaryotic fungus, commonly known as an anther smut, requires that haploid, yeast-like sporidia of opposite mating types fuse and differentiate into dikaryotic hyphae that penetrate host tissue as part of the fungal lifecycle. Mating occurs under conditions of cool temperatures and limited nutrients. Further development requires host cues or chemical mimics, including a variety of lipids, e.g...
January 17, 2017: Microbiology
https://www.readbyqxmd.com/read/28099613/disseminated-cryptococcosis-with-cutaneous-involvement-in-an-immunocompetent-patient
#8
Gabriely Lessa Sacht, Alexandre Moretti de Lima, Yuri Chiarelli Perdomo, Rafaela Suguimoto Boigues, Luiz Carlos Takita, Günter Hans
Cryptococcosis is a fungal infection of opportunistic behavior that is unusual in immunocompetent patients. We report a rare case of disseminated cryptococcosis with cutaneous involvement in an immunocompetent individual. During hospitalization, Cryptococcus gattii was isolated from skin lesions, lung and spinal fluid. The diagnosis of disseminated cryptococcosis was confirmed and treatment was established. The patient showed improvement. Due to the probable clinical severity of the disease and the possibility that skin lesions may be the first manifestation of this illness, prompt diagnosis must be established and treatment provided...
November 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28099608/subungual-squamous-cell-carcinoma
#9
Carolina Barbosa de Sousa Padilha, Laila Klotz de Almeida Balassiano, Julyana Calegari Pinto, Flávia Crespo Schueler de Souza, Bernard Kawa Kac, Curt Mafra Treu
Although subungual squamous cell carcinoma is rare, it is the most common primary malignant neoplasms in this location. The higher incidence occurs in the fingernails, but involvement of the toenails is also possible. Subungual squamous cell carcinoma often looks like other more common benign lesions, such as fungal infection, onychomycosis, or viral wart. These factors, together with a general lack of awareness of this disease among physicians, often result in delayed diagnosis. Therefore, it is underdiagnosed, with few reports in the literature...
November 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28099434/mlst-based-population-genetic-analysis-in-a-global-context-reveals-clonality-amongst-cryptococcus-neoformans-var-grubii-vni-isolates-from-hiv-patients-in-southeastern-brazil
#10
Kennio Ferreira-Paim, Leonardo Andrade-Silva, Fernanda M Fonseca, Thatiana B Ferreira, Delio J Mora, Juliana Andrade-Silva, Aziza Khan, Aiken Dao, Eduardo C Reis, Margarete T G Almeida, Andre Maltos, Virmondes R Junior, Luciana Trilles, Volker Rickerts, Ariya Chindamporn, Jane E Sykes, Massimo Cogliati, Kirsten Nielsen, Teun Boekhout, Matthew Fisher, June Kwon-Chung, David M Engelthaler, Marcia Lazéra, Wieland Meyer, Mario L Silva-Vergara
Cryptococcosis is an important fungal infection in immunocompromised individuals, especially those infected with HIV. In Brazil, despite the free availability of antiretroviral therapy (ART) in the public health system, the mortality rate due to Cryptococcus neoformans meningitis is still high. To obtain a more detailed picture of the population genetic structure of this species in southeast Brazil, we studied 108 clinical isolates from 101 patients and 35 environmental isolates. Among the patients, 59% had a fatal outcome mainly in HIV-positive male patients...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28098544/fatal-emmonsia-sp-infection-and-fungemia-after-orthotopic-liver-transplantation
#11
Shanthi Kappagoda, Jason Y Adams, Robert Luo, Niaz Banaei, Waldo Concepcion, Dora Y Ho
We report a fatal case of disseminated Emmonsia sp. infection in a 55-year-old man who received an orthotopic liver transplant. The patient had pneumonia and fungemia, and multisystem organ failure developed. As human habitats and the number of immunocompromised patients increase, physicians must be aware of this emerging fungal infection.
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28098529/multidrug-resistant-candida-haemulonii-and-c-auris-tel-aviv-israel
#12
Ronen Ben-Ami, Judith Berman, Ana Novikov, Edna Bash, Yael Shachor-Meyouhas, Shiri Zakin, Yasmin Maor, Jalal Tarabia, Vered Schechner, Amos Adler, Talya Finn
Candida auris and C. haemulonii are closely related, multidrug-resistant emerging fungal pathogens that are not readily distinguishable with phenotypic assays. We studied C. auris and C. haemulonii clinical isolates from 2 hospitals in central Israel. C. auris was isolated in 5 patients with nosocomial bloodstream infection, and C. haemulonii was found as a colonizer of leg wounds at a peripheral vascular disease clinic. Liberal use of topical miconazole and close contact among patients were implicated in C...
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28098391/understanding-the-formidable-nail-barrier-a-review-of-the-nail-microstructure-composition-and-diseases
#13
REVIEW
Sudhir Baswan, Gerald B Kasting, S Kevin Li, Randy Wickett, Brian Adams, Sean Eurich, Ryan Schamper
The topical treatment of nail fungal infections has been a focal point of nail research in the past few decades as it offers a much safer and focused alternative to conventional oral therapy. Although the current focus remains on exploring the ways of enhancing permeation through the formidable nail barrier, the understanding of the nail microstructure and composition is far from complete. This article reviews our current understanding of the nail microstructure, composition and diseases. A few of the parameters affecting the nail permeability and potential causes of the recurrence of fungal nail infection are also discussed...
January 18, 2017: Mycoses
https://www.readbyqxmd.com/read/28096399/antiviral-screening-identifies-adenosine-analogs-targeting-the-endogenous-dsrna-leishmania-rna-virus-1-lrv1-pathogenicity-factor
#14
F Matthew Kuhlmann, John I Robinson, Gregory R Bluemling, Catherine Ronet, Nicolas Fasel, Stephen M Beverley
The endogenous double-stranded RNA (dsRNA) virus Leishmaniavirus (LRV1) has been implicated as a pathogenicity factor for leishmaniasis in rodent models and human disease, and associated with drug-treatment failures in Leishmania braziliensis and Leishmania guyanensis infections. Thus, methods targeting LRV1 could have therapeutic benefit. Here we screened a panel of antivirals for parasite and LRV1 inhibition, focusing on nucleoside analogs to capitalize on the highly active salvage pathways of Leishmania, which are purine auxotrophs...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28095498/investigation-of-the-fusarium-virguliforme-transcriptomes-induced-during-infection-of-soybean-roots-suggests-that-enzymes-with-hydrolytic-activities-could-play-a-major-role-in-root-necrosis
#15
Binod B Sahu, Jordan L Baumbach, Prashant Singh, Subodh K Srivastava, Xiaoping Yi, Madan K Bhattacharyya
Sudden death syndrome (SDS) is caused by the fungal pathogen, Fusarium virguliforme, and is a major threat to soybean production in North America. There are two major components of this disease: (i) root necrosis and (ii) foliar SDS. Root symptoms consist of root necrosis with vascular discoloration. Foliar SDS is characterized by interveinal chlorosis and leaf necrosis, and in severe cases by flower and pod abscission. A major toxin involved in initiating foliar SDS has been identified. Nothing is known about how root necrosis develops...
2017: PloS One
https://www.readbyqxmd.com/read/28095428/linking-ecology-and-epidemiology-to-understand-predictors-of-multi-host-responses-to-an-emerging-pathogen-the-amphibian-chytrid-fungus
#16
Stephanie S Gervasi, Patrick R Stephens, Jessica Hua, Catherine L Searle, Gisselle Yang Xie, Jenny Urbina, Deanna H Olson, Betsy A Bancroft, Virginia Weis, John I Hammond, Rick A Relyea, Andrew R Blaustein
Variation in host responses to pathogens can have cascading effects on populations and communities when some individuals or groups of individuals display disproportionate vulnerability to infection or differ in their competence to transmit infection. The fungal pathogen, Batrachochytrium dendrobatidis (Bd) has been detected in almost 700 different amphibian species and is implicated in numerous global amphibian population declines. Identifying key hosts in the amphibian-Bd system-those who are at greatest risk or who pose the greatest risk for others-is challenging due in part to many extrinsic environmental factors driving spatiotemporal Bd distribution and context-dependent host responses to Bd in the wild...
2017: PloS One
https://www.readbyqxmd.com/read/28094339/massive-effect-on-lncrnas-in-human-monocytes-during-fungal-and-bacterial-infections-and-in-response-to-vitamins-a-and-d
#17
Konstantin Riege, Martin Hölzer, Tilman E Klassert, Emanuel Barth, Julia Bräuer, Maximilian Collatz, Franziska Hufsky, Nelly Mostajo, Magdalena Stock, Bertram Vogel, Hortense Slevogt, Manja Marz
Mycoses induced by C.albicans or A.fumigatus can cause important host damage either by deficient or exaggerated immune response. Regulation of chemokine and cytokine signaling plays a crucial role for an adequate inflammation, which can be modulated by vitamins A and D. Non-coding RNAs (ncRNAs) as transcription factors or cis-acting antisense RNAs are known to be involved in gene regulation. However, the processes during fungal infections and treatment with vitamins in terms of therapeutic impact are unknown...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28094180/antifungal-activity-of-substituted-aurones
#18
Caleb L Sutton, Zachary E Taylor, Mary B Farone, Scott T Handy
Novel antifungals are in high demand as there is a growing resistance to antifungals currently in use. In particular, opportunistic fungal infections caused by Candida spp. are on the rise with infections by this genus accounting for the most severe fungal infections following chemotherapy, implantation procedures, and in patients with HIV/AIDS. A series of simple aurone analogs were synthesized and screened for antifungal activity versus Candida spp. Several compounds displayed activity at 100μM, with two having IC50 values below 20μM for three species of Candida...
January 6, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28094163/granulomatous-histiocytic-dermatitides
#19
Mark R Wick
Granulomas of the skin may be classified in several ways. They are either infectious or non-infectious in character, and they contain areas of necrobiosis or necrosis, or not. Responsible infectious agents may be mycobacterial, fungal, treponemal, or parasitic organisms, and each case of granulomatous dermatitis should be assessed histochemically for those microbes. In the non-infectious group, examples of necrobiotic or necrotizing granulomas include granuloma annulare; necrobiosis lipoidica; rheumatoid nodule; and lupus miliaris disseminates faciei...
December 14, 2016: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28094046/spatiotemporal-variation-of-arbuscular-mycorrhizal-fungal-colonization-in-olive-olea-europaea-l-roots-across-a-broad-mesic-xeric-climatic-gradient-in-north-africa
#20
Amel Meddad-Hamza, Nabila Hamza, Souad Neffar, Arifa Beddiar, Silvio Gianinazzi, Haroun Chenchouni
This study aims to determine the spatiotemporal dynamics of root colonization and spore density of arbuscular mycorrhizal fungi (AMF) in the rhizosphere of olive trees (Olea europaea) with different plantation ages and under different climatic areas in Algeria. Soil and root samples were seasonally collected from three olive plantations of different ages. Other samples were carried out in productive olive orchards cultivated under a climatic gradient (desertic, semi-arid, subhumid, and humid). The olive varieties analysed in this study were Blanquette, Rougette, Chemlel and the wild-olive...
January 13, 2017: Science of the Total Environment
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