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Fungal infections

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https://www.readbyqxmd.com/read/28813015/transcriptional-responses-of-creeping-bentgrass-to-2-3-butanediol-a-bacterial-volatile-compound-bvc-analogue
#1
Yi Shi, Kuiju Niu, Bingru Huang, Wenhui Liu, Huiling Ma
Bacterial volatile compounds (BVCs) have been reported to enhance plant growth and elicit plant defenses against fungal infection and insect damage. The objective of this study was to determine transcriptomic changes in response to synthetic BVC that could be associated with plant resistance to Rhizoctonia solani in creeping bentgrass. The 2,3-butanediol (BD) (250 µM) was sprayed on creeping bentgrass leaves grown in jam jars. The result showed that synthetic BD induced plant defense against R. solani for creeping bentgrass...
August 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28812224/risk-factors-for-totally-implantable-venous-access-device-associated-complications-in-cystic-fibrosis
#2
C McCarthy, O O'Carroll, M E O'Brien, T McEnery, A Franciosi, C Gunaratnam, N G McElvaney
BACKGROUND: Candidaemia is an important nosocomial infection, seen frequently in immunocompromised and critically ill patients and increasingly recognised in cystic fibrosis (CF) patients with totally implantable venous access devices (TIVADs). This study aims to investigate the incidence and risk factors for the development of TIVAD-associated candidaemia and to assess the rate of TIVAD-related complications in CF patients. METHODS: A 10-year retrospective study was carried out on adult CF patients attending a single centre...
August 15, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28812114/-thoracic-and-abdominal-imaging-in-immunocompromised-patients
#3
REVIEW
J R Kroeger, D Maintz, D-H Chang
The number of patients with immunosuppression is rising worldwide. The spectrum of diseases and pathogens in these patients differs widely from that of immunocompetent patients due to frequent opportunistic infections. Symptoms are sometimes unspecific, and imaging plays a key role in the management of these patients. The lungs are a frequent site of infection in immunosuppressed patients. Chest X‑ray is the starting point for radiological diagnostics, but shows only limited sensitivity and specificity for infections with atypical pathogens...
August 15, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28812018/effects-of-fungicides-on-rat-s-neurosteroid-synthetic-enzymes
#4
Xiuwei Shen, Fan Chen, Lanlan Chen, Ying Su, Ping Huang, Ren-Shan Ge
Exposure to environmental endocrine disruptors may interfere with nervous system's activity. Fungicides such as tebuconazole, triadimefon, and vinclozolin have antifungal activities and are used to prevent fungal infections in agricultural plants. In the present study, we studied effects of tebuconazole, triadimefon, and vinclozolin on rat's neurosteroidogenic 5α-reductase 1 (5α-Red1), 3α-hydroxysteroid dehydrogenase (3α-HSD), and retinol dehydrogenase 2 (RDH2). Rat's 5α-Red1, 3α-HSD, and RDH2 were cloned and expressed in COS-1 cells, and effects of these fungicides on them were measured...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28811815/hepatosplenic-mucormycosis-post-autologous-stem-cell-transplant
#5
Samia Yasmeen, Omer Waqas, Javeria Munir, Faisal Sultan, Abdul Hameed
Mucormycosis is a life threatening fungal infection and remains an important cause of morbidity and mortality in immunocompromised patients after hematopoietic stem cell transplant. We report here a case of hepatosplenic mucormycosis in a patient after autologous stem cell transplant. A young man with anaplastic large cell lymphoma underwent autologous hematopoietic stem cell transplant after achieving complete remission with standard chemotherapy and consolidative radiotherapy. He was found to have incidental hepatosplenic hypodensities on follow up imaging, that were proved to be mucormycosis on histopathology after getting CT-guided biopsy of splenic lesions...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811758/pathological-interrelations-of-soil-borne-diseases-in-cucurbits-caused-by-fusarium-species-and-meloidogyne-incognita
#6
Yunhee Seo, Young Ho Kim
Pathological interrelations of two soil-borne diseases in cucurbits (watermelon, oriental melon, shintosa and cucumber) caused by Fusarium isolates (FI) and the root-knot nematode (RKN), Meloidogyne incognita were characterized by the fusarium disease severity index (DI), RKN gall index (GI) and eggmass index (EI) in inoculation tests using FI and RKN. Virulence of FI as determined by DI at 4 weeks after inoculation was mostly in the higher order of Fusarium proliferatum F6, F5 and Fusarium oxysporum f. sp...
August 2017: Plant Pathology Journal
https://www.readbyqxmd.com/read/28811757/cyclic-dipeptides-from-bacillus-vallismortis-bs07-require-key-components-of-plant-immunity-to-induce-disease-resistance-in-arabidopsis-against-pseudomonas-infection
#7
Seong Woo Noh, Rira Seo, Jung-Kwon Park, Md Maniruzzaman Manir, Kyungseok Park, Mee Kyung Sang, Surk-Sik Moon, Ho Won Jung
Cyclic dipeptides (CDPs) are one of the simplest compounds produced by living organisms. Plant-growth promoting rhizobacteria (PGPRs) also produce CDPs that can induce disease resistance. Bacillus vallismortis strain BS07 producing various CDPs has been evaluated as a potential biocontrol agent against multiple plant pathogens in chili pepper. However, plant signal pathway triggered by CDPs has not been fully elucidated yet. Here we introduce four CDPs, cyclo(Gly-L-Pro) previously identified from Aspergillus sp...
August 2017: Plant Pathology Journal
https://www.readbyqxmd.com/read/28811115/recurrence-of-cutaneous-coccidioidomycosis-6-years-after-valley-fever-a-case-presentation-and-literature-review
#8
Rana Shahab, Nasir K Amra, Rola Rabah, Justin Saunar, Joan Soriano, Jaffar A Al-Tawfiq
Coccidioidomycosis is usually acquired by inhalation of spores of Coccidioides immitis and C. posadasii. The disease ranges from a self-limited acute pneumonia (Valley Fever) to a disseminated disease. We present a 44-year-old healthy male who had patchy hair loss of several months duration resembling discoid lupus. He developed a firm non-scaly red plaque on the right forehead. Initial biopsy showed spongiotic dermatitis, and he was treated with systemic steroids. He then developed forehead and periorbital cellulitis and was treated with systemic antibiotics...
July 8, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28810997/cutaneous-leishmaniasis-in-a-saudi-arabian-soldier-stationed-in-the-united-states
#9
Kelly Laurent, Jason Susong, Eric Fillman, Simon Ritchie
BACKGROUND: Leishmaniasis is a common parasitic disease seen in many parts of the world, especially in areas where current U.S. and international forces are deployed. Approximately 350 million people are thought to be at risk of cutaneous leishmaniasis (CL) with an annual incidence of 1.5 million cases. Over 90% of cutaneous infections with Leishmania occur in the Middle East, Brazil, and Peru. Outbreaks of CL may occur in military personnel deployed to endemic areas. Since the incubation period for symptomatic CL ranges from weeks to months, symptoms may not appear until well after returning to the United States...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810711/whole-rna-sequencing-and-transcriptome-assembly-of-candida-albicans-and-candida-africana-under-chlamydospore-inducing-conditions
#10
Domenico Giosa, Maria Rosa Felice, Travis J Lawrence, Megha Gulati, Fabio Scordino, Letterio Giuffrè, Carla Lo Passo, Enrico D'Alessandro, Giuseppe Criseo, David H Ardell, Aaron D Hernday, Clarissa J Nobile, Orazio Romeo
Candida albicans is the most common cause of life-threatening fungal infections in humans, especially in immunocompromised individuals. Crucial to its success as an opportunistic pathogen is the considerable dynamism of its genome, which readily undergoes genetic changes generating new phenotypes and shaping the evolution of new strains. Candida africana is an intriguing C. albicans biovariant strain that exhibits remarkable genetic and phenotypic differences when compared with standard C. albicans isolates...
July 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28810564/clinical-efficacy-of-conjunctival-flap-surgery-in-the-treatment-of-refractory-fungal-keratitis
#11
Honorine Nizeyimana, Dan-Dan Zhou, Xiu-Fen Liu, Xiao-Tao Pan, Cong Liu, Cheng-Wei Lu, Ji-Long Hao
The aim of the present study was to investigate the use and effectiveness of a selective, partial, pedunculated (tongue-shaped) conjunctival flap (CF) for the treatment of refractory fungal keratitis (FK) with or without perforation. A total of 31 cases of corneal diseases treated by CF surgery between April 2014 and October 2015 were evaluated. Among the 31 cases, 16 cases (male:female, 11:5) with FK were selected. Logistic regression analysis was used to investigate factors associated with complications of CF surgery...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28809155/microbe-profile-candida-albicans-a-shape-changing-opportunistic-pathogenic-fungus-of-humans
#12
Neil A R Gow, Bhawna Yadav
(a) Morphotypes of Candida albicans (blue sector, vegetative forms; pink sector, forms related to mating or changes in ploidy). Cell types shown include: budding yeast cells; elongated conjoined yeasts forming pseudohyphae; parallel-sided hyphae; chlamydospores formed from suspensor cells; enlarged goliath cells formed under zinc deprivation (unpublished study, image from Duncan Wilson); intestinal gut form cells (image from Suzanne Noble); mating competence defined by white-grey-opaque cell transitions (images from Guanghua Huang); elongated chemotactic shmoo-mating projections leading to tetraploid zygote formation (images from David Soll and Karla Daniels); trimera formed by unequal chromosome segregation under antifungal exposure (image from Judith Berman)...
August 15, 2017: Microbiology
https://www.readbyqxmd.com/read/28808915/cost-effectiveness-of-posaconazole-tablets-for-invasive-fungal-infections-prevention-in-acute-myelogenous-leukemia-or-myelodysplastic-syndrome-patients-in-spain
#13
Rafael Cámara, Irmina Gozalbo, Manuel Jurado, Jaime Sanz, Belén Aragón, Santiago Grau
INTRODUCTION: Posaconazole is superior to fluconazole (FLU) and itraconazole (ITRA) in the prevention of invasive fungal diseases (IFDs) in neutropenic patients with acute myelogenous leukemia (AML) and myelodysplastic syndrome (MDS). A new tablet formulation of posaconazole with improved pharmacokinetic and pharmacodynamic properties compared to posaconazole oral solution has recently been approved. The objective of this study is to estimate the cost-effectiveness of the newly developed posaconazole tablets versus FLU oral suspension or ITRA oral solution for preventing IFDs in high-risk neutropenic patients with AML or MDS and from the perspective of the Spanish National Health System (NHS)...
August 14, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28808616/periprosthetic-hip-joint-infection-with-aspergillus-terreus-a-clinical-case-and-a-review-of-the-literature
#14
Rachel Bartash, Yi Guo, John B Pope, Michael H Levi, Wendy Szymczak, Nidhi Saraiya, Priya Nori
Fungal periprosthetic joint infections due to Aspergillus species are rare but are associated with significant cost and morbidity. We present a case of Asperigillus terreus prosthetic joint infection of the hip. The patient was successfully treated with a prolonged course of systemic antifungals along with surgical management.
December 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28808558/the-impact-of-parasitism-on-resource-allocation-in-a-fungal-host-the-case-of-cryphonectria-parasitica-and-its-mycovirus-cryphonectria-hypovirus-1
#15
Jérémie Brusini, Marta L Wayne, Alain Franc, Cécile Robin
Parasites are known to profoundly affect resource allocation in their host. In order to investigate the effects of Cryphonectria Hypovirus 1 (CHV1) on the life-history traits of its fungal host Cryphonectria parasitica, an infection matrix was completed with the cross-infection of six fungal isolates by six different viruses. Mycelial growth, asexual sporulation, and spore size were measured in the 36 combinations, for which horizontal and vertical transmission of the viruses was also assessed. As expected by life-history theory, a significant negative correlation was found between host somatic growth and asexual reproduction in virus-free isolates...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28808303/nlrp3-inflammasome-activation-results-in-liver-inflammation-and-fibrosis-in-mice-infected-with-schistosoma-japonicum-in-a-syk-dependent-manner
#16
Ya-Qi Lu, Shan Zhong, Nan Meng, Yin-Ping Fan, Wang-Xian Tang
Granulomatous and fibrosing inflammation in response to soluble egg antigen (SEA) from Schistosoma japonicum (S. japonicum) is the main pathological process of S. japonicum infection. Inflammasome activation has recently been implicated in the pathogenesis of liver disease. However, the role of inflammasome activation in schistosomiasis-associated liver fibrosis (SSLF) has not been extensively studied. In this study, it is demonstrated that the NLRP3 inflammasome is markedly activated in mouse HSCs both in vivo and in vitro during S...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807921/candida-albicans-swi-snf-and-mediator-complexes-differentially-regulate-mrr1-induced-mdr1-expression-and-fluconazole-resistance
#17
Zhongle Liu, Lawrence C Myers
Long-term azole treatment of patients with chronic Candida albicans infections can lead to drug resistance. Gain-of-function (GOF) mutations in the transcription factor Mrr1 and the consequent transcriptional activation of MDR1, a drug efflux coding gene, is a common pathway by which this human fungal pathogen acquires fluconazole resistance. This work elucidates the previously unknown downstream transcription mechanisms utilized by hyperactive Mrr1. We've identified the Swi/Snf chromatin remodeling complex as a key co-activator for Mrr1, which is required to maintain basal and induced 'open' chromatin, and Mrr1 occupancy, at the MDR1 promoter...
August 14, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28807829/the-magnaporthe-oryzae-alt-a-1-like-protein-mohrip1-binds-to-the-plant-plasma-membrane
#18
Yi Zhang, Yingbo Liang, Yijie Dong, Yuhan Gao, Xiufen Yang, Jingjing Yuan, Dewen Qiu
MoHrip1, a protein isolated from Magnaporthe oryzae, belongs to the Alt A 1 (AA1) family. mohrip1 mRNA levels showed inducible expression throughout the infection process in rice. To determine the location of MoHrip1 in M. oryzae, a mohrip1-gfp mutant was generated. Fluorescence microscopy observations and western blotting analysis showed that MoHrip1 was both present in the secretome and abundant in the fungal cell wall. To obtain MoHrip1 protein, we carried out high-yield expression of MoHrip1 in Pichia pastoris...
August 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28806568/a-simple-high-performance-liquid-chromatography-mass-spectrometry-method-for-therapeutic-drug-monitoring-of-isavuconazole-and-four-other-antifungal-drugs-in-human-plasma-samples
#19
Giovanna Fatiguso, Fabio Favata, Ilaria Zedda, Amedeo De Nicolò, Jessica Cusato, Valeria Avataneo, Giovanni Di Perri, Antonio D'Avolio
Triazoles chanced the prevention and treatment of invasive fungal infections, but their pharmacokinetic properties are still unclear. In particular, isavuconazole (ISC) is a new broad-spectrum antifungal triazole approved in 2015 as first-line treatment for intravenous and oral use against invasive aspergillosis and for mucormycosis. Nowadays, the optimal management of the treatments with triazoles requires the use of Therapeutic Drug Monitoring (TDM), in order to prevent sub-therapeutic or toxic concentrations...
August 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28806282/adenovirus-infection-in-children-with-acute-myeloid-leukemia-a-report-from-the-canadian-infection-in-acute-myeloid-leukemia-research-group
#20
Samuele Renzi, Salah Ali, Carol Portwine, David Mitchell, David Dix, Victor Lewis, Victoria Price, Michelle Science, Lillian Sung
BACKGROUND: Children with acute myeloid leukemia (AML) are at high risk of life-threatening bacterial and fungal infection. However, little is known about the prevalence or severity of adenovirus infection in this population. Objective was to describe the characteristics, treatments and outcomes of adenovirus infection in children with newly diagnosed AML. METHODS: We performed a retrospective chart review based upon two multi-center cohort studies which focused on identifying risk factors for infection in children with AML...
August 10, 2017: Pediatric Infectious Disease Journal
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