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https://www.readbyqxmd.com/read/28938005/recombinant-vaccines-of-a-cd4-t-cell-epitope-promote-efficient-control-of-paracoccidioides-brasiliensis-burden-by-restraining-primary-organ-infection
#1
Rodrigo Assunção Holanda, Julián Esteban Muñoz, Lucas Santos Dias, Leandro Buffoni Roque Silva, Julliana Ribeiro Alves Santos, Sthefany Pagliari, Érica Leandro Marciano Vieira, Tatiane Alves Paixão, Carlos Pelleschi Taborda, Daniel Assis Santos, Oscar Bruña-Romero
Paracoccidioidomycosis (PCM) is an infectious disease endemic to South America, caused by the thermally dimorphic fungi Paracoccidioides. Currently, there is no effective human vaccine that can be used in prophylactic or therapeutic regimes. We tested the hypothesis that the immunogenicity of the immunodominant CD4+ T-cell epitope (P10) of Paracoccidioides brasiliensis gp43 antigen might be significantly enhanced by using a hepatitis B virus-derived particle (VLP) as an antigen carrier. This chimera was administered to mice as a (His)6-purified protein (rPbT) or a replication-deficient human type 5 adenoviral vector (rAdPbT) in an immunoprophylaxis assay...
September 22, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28936201/trichoderma-asperelloides-spores-downregulate-dectin1-2-and-tlr2-receptors-of-mice-macrophages-and-decrease-candida-parapsilosis-phagocytosis-independent-of-the-m1-m2-polarization
#2
Andréa G Dos Santos, Érica A Mendes, Rafael P de Oliveira, Ana M C Faria, Aurizangela O de Sousa, Carlos P Pirovani, Fernanda F de Araújo, Andréa T de Carvalho, Marliete Carvalho Costa, Daniel Assis Santos, Quimi V Montoya, Andre Rodrigues, Jane L Dos Santos
The intensive use of pesticides to control pests in agriculture has promoted several issues relating to environment. As chemical pesticides remain controversial, biocontrol agents originating from fungi could be an alternative. Among them, we highlight biocontrol agents derived from the fungi genus Trichoderma, which have been documented in limiting the growth of other phytopathogenic fungus in the roots and leaves of several plant species. An important member of this genus is Trichoderma asperelloides, whose biocontrol agents have been used to promote plant growth while also treating soil diseases caused by microorganisms in both greenhouses and outdoor crops...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28935260/insights-of-lr28-mediated-wheat-leaf-rust-resistance-transcriptomic-approach
#3
Dharmendra Singh, Dhananjay Kumar, Lopamudra Satapathy, Jyoti Pathak, Saket Chandra, Adnan Riaz, Govindraj Bhaganagre, Raman Dhariwal, Manish Kumar, Kumble Vinod Prabhu, Harindra Singh Balyan, Pushpendra Kumar Gupta, Kunal Mukhopadhyay
Leaf rust is a fungal disease that causes severe yield losses in wheat. Resistant varieties with major and quantitative resistance genes are the most effective method to control the disease. However, the main problem is inadequate information for understanding resistance mechanism and its usefulness. This paper presents Lr28 mediated genome-wide response of known and unknown genes during wheat-Puccinia triticina interaction. In this study, we prepared Serial Analysis of Gene Expression (SAGE) libraries using seedling wheat mRNA for infected and mock conditions...
September 18, 2017: Gene
https://www.readbyqxmd.com/read/28934415/first-report-of-urease-activity-in-the-novel-systemic-fungal-pathogen-emergomyces-africanus-a-comparison-with-the-neurotrope-cryptococcus-neoformans
#4
Barbra Lerm, Chris Kenyon, Ilan S Schwartz, Heinrich Kroukamp, Riaan de Witt, Nelesh P Govender, G Sybren de Hoog, Alfred Botha
Cryptococcus neoformans is an opportunistic pathogen responsible for the AIDS-defining illness, cryptococcal meningitis. During the disease process, entry of cryptococcal cells into the brain is facilitated by virulence factors that include urease enzyme activity. A novel species of an Emmonsia-like fungus, recently named Emergomyces africanus, was identified as a cause of disseminated mycosis in HIV-infected persons in South Africa. However, in contrast to C. neoformans, the enzymes produced by this fungus, some of which may be involved in pathogenesis, have not been described...
November 1, 2017: FEMS Yeast Research
https://www.readbyqxmd.com/read/28933975/foot-problems-in-older-women
#5
F Guidozzi
Between 20 and 45% of women aged over 65 years of age will develop one or more foot problems, which, although not specific to older women, are more common in that age group than in younger women. These include structural defects of the toes including hallux valgus, hammer, mallet or claw toes, skin disorders, fungal infection of the toes and toe nails, thickened toe nails, ulcers, fissures or cracks between the toes, corns and calluses, flat or high-arched feet. Foot pain is common and may be associated with other co-morbid diseases of the foot...
September 21, 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28932984/rnai-mediated-down-regulation-of-a-melanin-polyketide-synthase-pks1-gene-in-the-fungus-slafractonia-leguminicola
#6
Mohammad S Alhawatema, Sayed Gebril, Daniel Cook, Rebecca Creamer
The fungus Slafractonia leguminicola, the causal agent of blackpatch disease of legumes produces two mycotoxins slaframine and swainsonine, causing slobbers' symptoms and locoism of grazing animals, respectively. The genetics of this important fungus is poorly understood. This work aimed to develop a genetic transformation system and evaluate the efficacy of RNA interference (RNAi) in S. leguminicola. In this study, S. leguminicola was transformed using a PEG-mediated method with a fungal construct that carries a hygromycin resistance cassette...
September 20, 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28932906/safety-study-and-therapeutic-drug-monitoring-of-the-oral-tablet-formulation-of-posaconazole-in-patients-with-haematological-malignancies
#7
C Boglione-Kerrien, S Picard, C Tron, S Nimubona, J-P Gangneux, S Lalanne, F Lemaitre, E Bellissant, M-C Verdier, A Petitcollin
PURPOSE: Posaconazole is a triazole antifungal widely used for prophylaxis of invasive fungal disease (IFI). Posaconazole tablets allow reaching higher plasma levels than the oral suspension, but safety data with this formulation in real life are scarce. This study aimed at evaluating the safety profile, the pharmacokinetic variability, and the concentration-toxicity relationship of posaconazole tablets in patients with haematological malignancies. METHODS: Sixty neutropenic patients treated with posaconazole tablets for prophylaxis of IFI were prospectively included in the study...
September 20, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28931629/selinene-volatiles-are-essential-precursors-for-maize-defense-promoting-fungal-pathogen-resistance
#8
Yezhang Ding, Alisa Huffaker, Tobias G Köllner, Philipp Weckwerth, Christelle A M Robert, Joseph L Spencer, Alexander E Lipka, Eric A Schmelz
To ensure food security, maize (Zea mays) is a model crop for understanding useful traits underlying stress resistance. In contrast to foliar biochemicals, root defenses limiting the spread of disease remain poorly described. To better understand below-ground defenses in the field, we performed root metabolomic profiling and uncovered unexpectedly high levels of the sesquiterpene volatile β-selinene and the corresponding non-volatile antibiotic derivative, β-costic acid. The application of metabolite-based quantitative trait loci (mQTL) mapping using bi-parental populations, genome wide association studies, and near-isogenic lines (NILs) enabled the identification of terpene synthase 21 (ZmTps21) on chromosome 9 as a β-costic acid pathway candidate gene...
September 20, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28928736/selective-igm-deficiency-an-underestimated-primary-immunodeficiency
#9
REVIEW
Sudhir Gupta, Ankmalika Gupta
Although selective IgM deficiency (SIGMD) was described almost five decades ago, it was largely ignored as a primary immunodeficiency. SIGMD is defined as serum IgM levels below two SD of mean with normal serum IgG and IgA. It appears to be more common than originally realized. SIGMD is observed in both children and adults. Patients with SIGMD may be asymptomatic; however, approximately 80% of patients with SIGMD present with infections with bacteria, viruses, fungi, and protozoa. There is an increased frequency of allergic and autoimmune diseases in SIGMD...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28927397/detection-of-bacterial-pathogens-from-clinical-specimens-using-conventional-microbial-culture-and-16s-metagenomics-a-comparative-study
#10
Lalanika M Abayasekara, Jennifer Perera, Vishvanath Chandrasekharan, Vaz S Gnanam, Nisala A Udunuwara, Dileepa S Liyanage, Nuwani E Bulathsinhala, Subhashanie Adikary, Janith V S Aluthmuhandiram, Chrishanthi S Thanaseelan, D Portia Tharmakulasingam, Tharaga Karunakaran, Janahan Ilango
BACKGROUND: Infectious disease is the leading cause of death worldwide, and diagnosis of polymicrobial and fungal infections is increasingly challenging in the clinical setting. Conventionally, molecular detection is still the best method of species identification in clinical samples. However, the limitations of Sanger sequencing make diagnosis of polymicrobial infections one of the biggest hurdles in treatment. The development of massively parallel sequencing or next generation sequencing (NGS) has revolutionized the field of metagenomics, with wide application of the technology in identification of microbial communities in environmental sources, human gut and others...
September 19, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28927203/diagnostic-imaging-and-invasive-fungal-diseases-in-children
#11
Aspasia Katragkou, Brian T Fisher, Andreas H Groll, Emmanuel Roilides, Thomas J Walsh
Invasive fungal disease (IFD) is a life-threatening condition, especially in immunocompromised children. The role of diagnostic imaging in children at risk for an IFD is multifactorial, including initially detecting it, evaluating for dissemination of infection beyond the primary site of disease, monitoring the response to antifungal therapy, and assessing for potential relapse. The objective of this review was to synthesize the published literature relevant to the use of various imaging modalities for the diagnosis and management of IFD in children...
September 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28927202/role-of-molecular-biomarkers-in-the-diagnosis-of-invasive-fungal-diseases-in-children
#12
Anna R Huppler, Brian T Fisher, Thomas Lehrnbecher, Thomas J Walsh, William J Steinbach
Invasive fungal diseases are important clinical problems that are often complicated by severe illness and therefore the inability to use invasive measures to definitively diagnose the disease. Tests for a range of fungal biomarkers that do not require an invasive sample-collection procedure have been incorporated into adult clinical practice, but pediatric data and pediatric-specific recommendations for some of these diagnostic tools are lacking. In this review, we summarize the published literature and contemporary strategies for using the biomarkers galactomannan, (1→3)-β-d-glucan, Candida mannan antigen and anti-mannan antibody, and fungal polymerase chain reaction for diagnosing invasive fungal disease in children...
September 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28927201/recognition-and-clinical-presentation-of-invasive-fungal-disease-in-neonates-and-children
#13
Jill King, Zoi-Dorothea Pana, Thomas Lehrnbecher, William J Steinbach, Adilia Warris
Invasive fungal diseases (IFDs) are devastating opportunistic infections that result in significant morbidity and death in a broad range of pediatric patients, particularly those with a compromised immune system. Recognizing them can be difficult, because nonspecific clinical signs and symptoms or isolated fever are frequently the only presenting features. Therefore, a high index of clinical suspicion is necessary in patients at increased risk of IFD, which requires knowledge of the pediatric patient population at risk, additional predisposing factors within this population, and the clinical signs and symptoms of IFD...
September 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28927200/epidemiology-of-invasive-fungal-disease-in-children
#14
Zoi Dorothea Pana, Emmanuel Roilides, Adilia Warris, Andreas H Groll, Theoklis Zaoutis
Considerable progress has been made in the prevention, diagnosis, and management of pediatric patients with invasive fungal disease (IFD). The reported decreasing trend in the incidence of invasive candidiasis (IC) over the past 15 years in both neonates and children has been encouraging. Nevertheless, due to the growing number of immunocompromised children at risk for IFD, this disease continues to be associated with significant morbidity and death and with increased financial burden to the health care system...
September 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28927199/international-collaborative-on-contemporary-epidemiology-and-diagnosis-of-invasive-fungal-disease-in-children
#15
William J Steinbach, Brian T Fisher
No abstract text is available yet for this article.
September 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28925594/pharyngoesophageal-diverticula-simulating-thyroid-nodules-an-unusual-occurrence-with-unique-features
#16
Karen K Nauschuetz, Lorna L Ogden, Cherry E Starling, Mohammad J Saleh, Allan C Golding, S Thomas Traweek
Pharyngoesophageal diverticula (PED) of the Zenker's and Killian-Jamieson types arise in close proximity to the thyroid gland, and may rarely be confused with a thyroid nodule on ultrasonography. In this brief report, we detail the cytologic, clinical, and radiologic findings of three PED that were thought to be thyroid nodules, and were subjected to fine-needle aspiration (FNA). The patients were females with an age range of 51-64 years. All three patients had multiple thyroid nodules, and two patients reported symptoms attributable to the diverticulum...
September 19, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28925289/a-new-antifungal-benzoic-acid-ester-from-uvaria-narum
#17
Alka Elizabeth Varghese, Balaji Govindan, Jyothilakshmi Madhavankutty, Antony Thomas Valiyaveetil, Madhusudhanan Karadka, Sabulal Baby
Uvaria narum has been used for gastrointestinal problems, jaundice, fever and skin diseases in traditional and ethnomedical practices. Our preliminary antifungal screening of various leaf extracts of U. narum revealed very good antifungal activity for its acetone extract. Active principle of U. narum leaf acetone extract was isolated by bioactivity-guided fractionation and characterised as a new molecule, 2-E-(2″-oxo-5″-acetoxy cyclopent-3″-en-1″-ylidene) ethyl benzoate, by NMR, IR and mass spectroscopic analyses...
September 19, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28924253/quantitative-trait-loci-responsible-for-sharp-eyespot-resistance-in-common-wheat-ci12633
#18
Xujiang Wu, Kai Cheng, Renhui Zhao, Shujiang Zang, Tongde Bie, Zhengning Jiang, Ronglin Wu, Derong Gao, Boqiao Zhang
Sharp eyespot is a major fungal disease of wheat caused by Rhizoctonia cerealis in cool and humid environments worldwide. In this study, 224 single seed descent derived F13, F14 and F15 recombinant inbred lines (RILs) from the cross between CI12633 (a resistant cultivar) and Yangmai 9 (a susceptible cultivar) were assessed for sharp eyespot resistance (R.cerealis isolate R0301) in field and greenhouse conditions in three growing seasons. Different agronomic characteristics were also evaluated in the field with no disease infection...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28924158/genome-wide-association-analysis-of-powdery-mildew-resistance-in-u-s-winter-wheat
#19
Na Liu, Guihua Bai, Meng Lin, Xiangyang Xu, Wenming Zheng
Wheat powdery mildew (PM), caused by Blumeria graminis f. sp. tritici, is a major fungal disease of wheat worldwide. It can cause considerable yield losses when epidemics occur. Use of genetic resistance is the most effective approach to control the disease. To determine the genomic regions responsible for PM resistance in a set of U.S. winter wheat and identify DNA markers in these regions, we conducted a genome-wide association study on a set of 185 U.S. winter wheat accessions using single nucleotide polymorphism (SNP) markers from 90 K wheat SNP arrays...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28922514/the-complexity-of-oral-physiology-and-its-impact-on-salivary-diagnostics
#20
Eva J Helmerhorst, Colin Dawes, Frank G Oppenheim
OBJECTIVES: Saliva contains biomarkers for systemic as well as oral diseases. This study was undertaken to assess the variability in the sources of such biomarkers (plasma, cells), and attempted to identify saliva deterioration markers in order to improve saliva diagnostic outcomes. MATERIALS AND METHODS: Inter- and intra-subject variation in salivary gingival crevicular fluid levels were determined by measuring salivary albumin and transferrin levels. The purity of collected glandular secretions was determined by bacterial culture, and the variability in epithelial cell numbers by cell counting and optical density measurement...
September 18, 2017: Oral Diseases
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