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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
#1
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
#2
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/27914593/systemic-and-localized-infection-by-candida-species-in-patients-with-rheumatic-diseases-receiving-anti-tnf-therapy
#3
Nadia E Aikawa, Daniela T A Rosa, Gilda M B Del Negro, Julio C B Moraes, Ana C M Ribeiro, Carla Gonçalves Saad, Clovis A Silva, Eloisa Bonfá
OBJECTIVE: To evaluate the prevalence of systemic and localized infection by Candida species and its possible association with demographic, clinical and laboratory manifestations and therapy in patients with rheumatic diseases taking TNF blockers. METHODS: Consecutive patients with rheumatic diseases receiving anti-TNF agents were included. The following risk factors up to four weeks prior to the study were analyzed: use of antibiotics, immunosuppressant drugs, hospitalization and invasive procedures...
November 2016: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/27913461/primary-immune-deficiencies-with-defects-in-neutrophil-function
#4
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/27911999/joint-effects-of-nutrient-addition-and-enemy-exclusion-on-exotic-plant-success
#5
Robert W Heckman, Justin P Wright, Charles E Mitchell
Worldwide, ecosystems are increasingly dominated by exotic plant species, a shift hypothesized to result from numerous ecological factors. Two of these, increased resource availability and enemy release, may act in concert to increase exotic success in plant communities (Resource-Enemy Release Hypothesis, R-ERH). To test this, we manipulated the availability of soil nutrients and access of vertebrate herbivores, insect herbivores, and fungal pathogens to intact grassland communities containing both native and exotic species...
December 2016: Ecology
https://www.readbyqxmd.com/read/27911046/verticillium-dahliae-lysm-effectors-differentially-contribute-to-virulence-on-plant-hosts
#6
Anja Kombrink, Hanna Rovenich, Xiaoqian Shi-Kunne, Eduardo Rojas-Padilla, Grardy C M van den Berg, Emmanouil Domazakis, Ronnie de Jonge, Dirk-Jan Valkenburg, Andrea Sánchez-Vallet, Michael F Seidl, Bart P H J Thomma
Chitin-binding LysM effectors contribute to virulence of various plant pathogenic fungi that are causal agents of foliar diseases. Here, we report on LysM effectors of the soil-borne fungal vascular wilt pathogen Verticillium dahliae. Comparative genomics revealed three core LysM effectors that are conserved in a collection of V. dahliae strains. Remarkably, and in contrast to the previously studied LysM effectors of other plant pathogens, no expression of core LysM effectors was monitored in planta in a taxonomically diverse panel of host plants...
December 2, 2016: Molecular Plant Pathology
https://www.readbyqxmd.com/read/27909426/deconstructing-the-bat-skin-microbiome-influences-of-the-host-and-the-environment
#7
Christine V Avena, Laura Wegener Parfrey, Jonathan W Leff, Holly M Archer, Winifred F Frick, Kate E Langwig, A Marm Kilpatrick, Karen E Powers, Jeffrey T Foster, Valerie J McKenzie
Bats are geographically widespread and play an important role in many ecosystems, but relatively little is known about the ecology of their associated microbial communities and the role microbial taxa play in bat health, development, and evolution. Moreover, few vertebrate animal skin microbiomes have been comprehensively assessed, and thus characterizing the bat skin microbiome will yield valuable insight into the variability of vertebrate skin microbiomes as a whole. The recent emergence of the skin fungal disease white-nose syndrome highlights the potentially important role bat skin microbial communities could play in bat health...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27904738/recent-developments-in-the-management-of-invasive-fungal-infections-in-patients-with-oncohematological-diseases
#8
REVIEW
Markus Ruhnke, Stefan Schwartz
Patients with hematological cancer have a high risk of invasive fungal diseases (IFDs). These infections are mostly life threatening and an early diagnosis and initiation of appropriate antifungal therapy are essential for the clinical outcome. Most commonly, Aspergillus and Candida species are involved. However, other non-Aspergillus molds are increasingly be identified in cases of documented IFDs. Important risk factors are long lasting granulocytopenia with neutrophil counts below 500/μl for more than 10 days or graft-versus-host disease resulting from allogeneic stem-cell transplantation...
December 2016: Therapeutic Advances in Hematology
https://www.readbyqxmd.com/read/27904204/a-rare-case-of-juvenile-systemic-lupus-erythematosus-with-disseminated-histoplasmosis
#9
Piyabi Sarkar, Keya Basu, Mamata Guha Mallick Sinha
Histoplasmosis is a systemic fungal infection caused by dimorphic fungus, Histoplasma capsulatum. Immunocompetent individuals usually have self-limiting or localized disease whereas immunocompromised individuals develop disseminated disease. The occurrence of progressive disseminated histoplasmosis in juvenile systemic lupus erythematosus is extremely rare with only one reported case in literature showing such association. Therefore, we report a case of severe opportunistic fungal infection caused by Histoplasma in a 13-year-old girl who was diagnosed with juvenile lupus erythematosus, subsequently developed septic shock and died of the disease despite of aggressive antifungal therapy...
November 2016: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/27903594/chronic-rhinosinusitis-and-the-evolving-understanding-of-microbial-ecology-in-chronic-inflammatory-mucosal-disease
#10
REVIEW
Michael Hoggard, Brett Wagner Mackenzie, Ravi Jain, Michael W Taylor, Kristi Biswas, Richard G Douglas
Chronic rhinosinusitis (CRS) encompasses a heterogeneous group of debilitating chronic inflammatory sinonasal diseases. Despite considerable research, the etiology of CRS remains poorly understood, and debate on potential roles of microbial communities is unresolved. Modern culture-independent (molecular) techniques have vastly improved our understanding of the microbiology of the human body. Recent studies that better capture the full complexity of the microbial communities associated with CRS reintroduce the possible importance of the microbiota either as a direct driver of disease or as being potentially involved in its exacerbation...
January 2017: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/27902710/aspergillus-sydowii-and-other-potential-fungal-pathogens-in-gorgonian-octocorals-of-the-ecuadorian-pacific
#11
M Mar Soler-Hurtado, José Vladimir Sandoval-Sierra, Annie Machordom, Javier Diéguez-Uribeondo
Emerging fungal diseases are threatening ecosystems and have increased in recent decades. In corals, the prevalence and consequences of these infections have also increased in frequency and severity. Coral reefs are affected by an emerging fungal disease named aspergillosis, caused by Aspergillus sydowii. This disease and its pathogen have been reported along the Caribbean and Pacific coasts of Colombia. Despite this, an important number of coral reefs worldwide have not been investigated for the presence of this pathogen...
2016: PloS One
https://www.readbyqxmd.com/read/27900685/assessing-bacterial-and-fungal-diversity-in-the-plant-endosphere
#12
Bernd Wemheuer, Franziska Wemheuer
Plants are colonized various microorganisms including endophytes. These microbes can play an important role in agricultural production as they promote plant growth and/or enhance the resistance of their host plant against diseases and environmental stress conditions. Although culture-independent molecular approaches such as DNA barcoding have greatly enhanced our understanding of bacterial and fungal endophyte communities, there are some methodical problems when investigating endophyte diversity. One main issue are sequence contaminations such as plastid-derived rRNA gene sequences which are co-amplified due to their high homology to bacterial 16S rRNA genes...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27900242/management-of-rhinomaxillary-mucormycosis-with-posaconazole-in-immunocompetent-patients
#13
Sachin Rai, Shikha Yadav, Dinesh Kumar, Vijay Kumar, Vidya Rattan
Mucormycosis is an opportunistic, uncommon and serious systemic fungal infection mostly presenting in immunocompromised patients. The combination of surgical debridement, parenteral therapy with Amphotericin B and management of the underlying systemic disease is the standard treatment modality for mucormycosis. The drawback of this regime is the need for long hospitalization due to the serious side effects of Amphotericin B requiring regular monitoring. Oral Posaconazole is one of the newer antifungals that have shown promising results...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27900097/post-transplant-lymphoproliferative-disorder-presenting-with-skin-ulceration-in-a-renal-transplant-recipient-who-achieved-sustained-remission-with-rituximab-therapy-a-case-report
#14
Man Fai Law, Hay Nun Chan, Ho Kei Lai, Chung Yin Ha, Celia Ng, Yiu Ming Yeung, Sze Fai Yip
Post-transplant lymphoproliferative disorder (PTLD) is associated with a variety of clinical presentations, but rarely involves the skin. We herein report a case of PTLD presenting with skin ulceration in a renal transplant recipient. A biopsy of the ulcer confirmed the diagnosis of diffuse large B-cell lymphoma. The patient was initially treated with immunosuppression reduction, but the skin ulcer persisted. He was then treated with two courses of chemotherapy, but his condition was complicated with cryptococcal infection...
November 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/27898755/examining-the-transcriptional-response-in-wheat-near-isogenic-lines-to-infection-and-deoxynivalenol-treatment
#15
Anna N Hofstad, Thomas Nussbaumer, Eduard Akhunov, Sanghyun Shin, Karl G Kugler, H Corby Kistler, Klaus F X Mayer, Gary J Muehlbauer
head blight (FHB) is a disease caused predominantly by the fungal pathogen that affects wheat and other small-grain cereals and can lead to severe yield loss and reduction in grain quality. Trichothecene mycotoxins, such as deoxynivalenol (DON), accumulate during infection and increase pathogen virulence and decrease grain quality. The locus on wheat chromosome 3BS confers Type II resistance to FHB and resistance to the spread of infection on the spike and has been associated with resistance to DON accumulation...
March 2016: Plant Genome
https://www.readbyqxmd.com/read/27897041/novel-antifungal-agents-a-patent-review-2013-present
#16
María Victoria Castelli, Marcos Gabriel Derita, Silvia Noelí López
Superficial infections involving the skin and mucosa are the most common fungal disease in humans. Fungi can also produce invasive infections (IFI), which are increasing in incidence among the growing population of immunocompromised patients, and are characterized by a high mortality rate. Amphotericin B, new triazoles and echinocandins have improved treatment options in IFI. However, the frequency of less common and more resistant fungi, the limited activity of available antifungal drugs and their undesirable side effects reflect the urgent need for the development of new therapeutic strategies...
November 29, 2016: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/27896581/secondary-metabolites-of-endophytic-xylaria-species-with-potential-applications-in-medicine-and-agriculture
#17
REVIEW
Martha Lydia Macías-Rubalcava, Rosa Elvira Sánchez-Fernández
Fungal endophytes are important sources of bioactive secondary metabolites. The genus Xylaria Hill (ex Schrank, 1789, Xylariaceae) comprises various endophytic species associated to both vascular and non vascular plants. The secondary metabolites produced by Xylaria species include a variety of volatile and non-volatile compounds. Examples of the former are sesquiterpenoids, esters, and alcohols, among others; and of the latter we find terpenoids, cytochalasins, mellein, alkaloids, polyketides, and aromatic compounds...
January 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/27892584/a-short-history-of-phototherapy-vitamin-d-and-skin-disease
#18
Paul Jarrett, Robert Scragg
The earliest record between sun exposure and skin disease goes back five millennia to the ancient Egyptians. The modern scientific era of medical light therapy and skin diseases started in 1877 when Downs and Blunt reported that exposure to light inhibited fungal growth in test tubes. Continuing research generated a growing medical interest in the potential the effects of light to treat and cure skin diseases considered as parasitic. This culminated in the awarding of the 1903 Nobel Prize in Medicine to Niels Finsen for his pioneering work showing that light could successfully treat cutaneous mycobacterium tuberculosis (lupus vulgaris), a disfiguring disorder common at the time...
November 28, 2016: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/27892480/metabolic-response-induced-by-parasitic-plant-fungus-interactions-hinder-amino-sugar-and-nucleotide-sugar-metabolism-in-the-host
#19
Dong-Kyu Lee, Soohyun Ahn, Hae Yoon Cho, Hye Young Yun, Jeong Hill Park, Johan Lim, Jeongmi Lee, Sung Won Kwon
Infestation by the biotrophic pathogen Gymnosporangium asiaticum can be devastating for plant of the family Rosaceae. However, the phytopathology of this process has not been thoroughly elucidated. Using a metabolomics approach, we discovered the intrinsic activities that induce disease symptoms after fungal invasion in terms of microbe-induced metabolic responses. Through metabolic pathway enrichment and mapping, we found that the host altered its metabolite levels, resulting in accumulation of tetrose and pentose sugar alcohols, in response to this fungus...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27890967/airborne-pollen-and-fungal-spores-in-garki-abuja-north-central-nigeria
#20
Dimphna Nneka Ezike, Catherine V Nnamani, Oluwatoyin T Ogundipe, Olushola H Adekanmbi
The ambient atmosphere is dominated with pollen and spores, which trigger allergic reactions and diseases and impact negatively on human health. A survey of pollen and fungal spores constituents of the atmosphere of Garki, Abuja (North-Central Nigeria) was carried out for 1 year (June 1, 2011-May 31, 2012). The aim of the study was to determine the prevalence and abundance of pollen and fungal spores in the atmosphere and their relationship with meteorological parameters. Airborne samples were trapped using modified Tauber-like pollen trap, and the recipient solutions were subjected to acetolysis...
2016: Aerobiologia
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