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Fungal infection

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https://www.readbyqxmd.com/read/28528201/x-linked-carriers-of-chronic-granulomatous-disease-illness-lyonization-and-stability
#1
Beatriz E Marciano, Christa S Zerbe, E Liana Falcone, Li Ding, Suk See DeRavin, Janine Daub, Samantha Kreuzburg, Lynne Yockey, Sally Hunsberger, Ladan Foruraghi, Lisa A Barnhart, Kabir Matharu, Victoria Anderson, Dirk N Darnell, Cathleen Frein, Danielle L Fink, Karen P Lau, Debra A Long Priel, John I Gallin, Harry L Malech, Gulbu Uzel, Alexandra F Freeman, Douglas B Kuhns, Sergio D Rosenzweig, Steven M Holland
BACKGROUND: Chronic granulomatous disease (CGD) is characterized by recurrent life-threatening bacterial and fungal infections and aberrant inflammation. Mutations in CYBB cause X-linked CGD and account for 65%-70% of cases in western countries. OBJECTIVE: To understand the clinical manifestations associated with the X-linked CGD carrier state. METHODS: We undertook a comprehensive retrospective study of 162 affected females. We examined dihydrorhodamine oxidation (DHR) data for percent (%) X chromosome inactivation...
May 17, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28528008/-role-of-therapeutic-drug-monitoring-in-pulmonary-infections
#2
REVIEW
C Padoin
Pulmonary infections are common and caused by a wide range of viruses, bacteria, parasites and fungi. They consist of lower respiratory tract infections with community and hospital acquired acute pneumonia, bronchitis, lung abscess, fungal infections and tuberculosis. The management of these infections should be based on guidelines that take into account the microorganisms most frequently involved as a basis for empirical treatment, with identification of causative microorganisms allowing targeted treatments...
May 17, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28527634/low-penetration-of-caspofungin-into-cerebrospinal-fluid-following-intravenous-administration-of-standard-doses
#3
Volker Strenger, Fedja Farowski, Carsten Müller, Nora Hofer, Hans Jürgen Dornbusch, Daniela Sperl, Herwig Lackner, Martin Benesch, Christian Urban
The kinetics of caspofungin (CAS) in cerebrospinal fluid (CSF) following intravenous (i.v.) administration has been studied exclusively in animal models. However, human data are missing so far. In this study, 13 CSF samples were obtained at different time points following i.v. infusion of CAS in ten paediatric haemato-/oncological patients (age range 1.0-14.2 years, median 8.6 years) without signs of central nervous system (CNS) infection (n = 10 samples) or with infectious meningitis (n = 3 samples). Serum samples were obtained concurrently...
May 17, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28526091/a-pre-therapeutic-coating-for-medical-devices-that-prevents-the-attachment-of-candida-albicans
#4
Diego Vargas-Blanco, Aung Lynn, Jonah Rosch, Rony Noreldin, Anthony Salerni, Christopher Lambert, Reeta P Rao
BACKGROUND: Hospital acquired fungal infections are defined as "never events"-medical errors that should never have happened. Systemic Candida albicans infections results in 30-50% mortality rates. Typically, adhesion to abiotic medical devices and implants initiates such infections. Efficient adhesion initiates formation of aggressive biofilms that are difficult to treat. Therefore, inhibitors of adhesion are important for drug development and likely to have a broad spectrum efficacy against many fungal pathogens...
May 19, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28526018/infection-mediated-asthma-etiology-mechanisms-and-treatment-options-with-focus-on-chlamydia-pneumoniae-and-macrolides
#5
REVIEW
Wilmore C Webley, David L Hahn
Asthma is a chronic respiratory disease characterized by reversible airway obstruction and airway hyperresponsiveness to non-specific bronchoconstriction agonists as the primary underlying pathophysiology. The worldwide incidence of asthma has increased dramatically in the last 40 years. According to World Health Organization (WHO) estimates, over 300 million children and adults worldwide currently suffer from this incurable disease and 255,000 die from the disease each year. It is now well accepted that asthma is a heterogeneous syndrome and many clinical subtypes have been described...
May 19, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28524625/mrna-decay-an-adaptation-tool-for-the-environmental-fungal-pathogen-cryptococcus-neoformans
#6
REVIEW
Amanda L M Bloom, Jay Leipheimer, John C Panepinto
Fungi are ubiquitous in the environment and humans constantly encounter them in the soil, air, water, and food. The vast majority of these interactions are inconsequential. However, in the context of immunodeficiency precipitated by HIV infection, hematologic malignancy, or transplantation, a small subset of fungi can cause devastating, systemic infection. The most deadly of the opportunistic environmental fungi, Cryptococcus neoformans, is estimated to cause hundreds of thousands of deaths per year, mostly in the context of HIV co-infection...
May 19, 2017: Wiley Interdisciplinary Reviews. RNA
https://www.readbyqxmd.com/read/28524381/antifungal-activity-of-gallic-acid-in-vitro-and-in-vivo
#7
Zhi-Jian Li, Meng Liu, Gulina Dawuti, Qin Dou, Yu Ma, Heng-Ge Liu, Silafu Aibai
Gallic acid (GA) is a polyphenol natural compound found in many medicinal plant species, including pomegranate rind (Punica granatum L.), and has been shown to have antiinflammatory and antibacterial properties. Pomegranate rind is used to treat bacterial and fungal pathogens in Uyghur and other systems of traditional medicine, but, surprisingly, the effects of GA on antifungal activity have not yet been reported. In this study, we aimed to investigate the inhibitory effects of GA on fungal strains both in vitro and in vivo...
May 19, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28523930/inactivation-of-tobacco-mosaic-virus-using-gamma-irradiation-and-its-potential-modes-of-action
#8
R-D Jeong, H-S Choi
Gamma irradiation is a non-thermal processing technique used to disinfect harmful microorganisms in agriculture. This technology has been shown to be an effective method to control bacterial and fungal plant pathogens. However, its effect on viral plant pathogen is less understood. Gamma irradiation was evaluated for the inactivation of tobacco mosaic virus (TMV). TMV infectivity has gradually decreased following irradiation in a dose-dependent manner and virus was completely inactivated at a dose over 40 kGy...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28523894/primary-cutaneous-mucormycosis-in-an-extremely-preterm-infant-successfully-treated-with-liposomal-amphotericin-b
#9
Christopher D Lowe, Rebecca J Sainato, David R Stagliano, Maribel M Morgan, Brian P Green
Cutaneous mucormycosis is a rare but often fatal invasive fungal infection that occurs most commonly in patients with diabetes, malignancy, and other immunocompromising conditions. We report an extremely preterm (<28 weeks) baby boy who developed polymicrobial sepsis and primary cutaneous mucormycosis within his first 10 days of life. He was successfully treated with medical management alone since he was not a candidate for surgery. Successful treatment of cutaneous mucormycosis without surgical debridement has been reported on only two other occasions...
May 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28522853/multitrophic-effects-of-belowground-parasitoid-learning
#10
Denis S Willett, Hans T Alborn, Lukasz L Stelinski
The ability to learn allows organisms to take advantage of dynamic and ephemeral opportunities in their environment. Here we show that learning in belowground entomopathogenic nematodes has cascading multitrophic effects on their hosts, other nematodes, and nematophagous fungal predators. In addition to quantifying these effects, we show that social behavioral plasticity in these belowground parasitoids can amplify signaling by plant defense pathways and results in an almost doubling of insect herbivore infection by entomopathogenic nematodes...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522423/sertaconazole-nitrate-loaded-nanovesicular-systems-for-targeting-skin-fungal-infection-in-vitro-ex-vivo-and-in-vivo-evaluation
#11
Menna M Abdellatif, Islam A Khalil, Mahmoud A F Khalil
The aim of this study was to develop different vesicular systems for sertaconazole nitrate and evaluate the ability of targeting deep skin layers to treat dermal fungal infection. Therefore, different phospholipid based nanovesicles, namely liposomes, glycerosomes, transferosmes and ethosomes were prepared and in-vitro evaluated for morphology, entrapment efficiency, vesicle size and zeta potential value, followed by ex-vivo evaluation through skin penetration and permeation. The selected vesicular formula was incorporated into gel base system and assessed by ex-vivo permeation visualization study using confocal laser scanning microscopy (CLSM)...
May 15, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28521747/insights-into-the-ancestral-organisation-of-the-mammalian-mhc-class-ii-region-from-the-genome-of-the-pteropid-bat-pteropus-alecto
#12
Justin H J Ng, Mary Tachedjian, Lin-Fa Wang, Michelle L Baker
BACKGROUND: Bats are an extremely successful group of mammals and possess a variety of unique characteristics, including their ability to co-exist with a diverse range of pathogens. The major histocompatibility complex (MHC) is the most gene dense and polymorphic region of the genome and MHC class II (MHC-II) molecules play a vital role in the presentation of antigens derived from extracellular pathogens and activation of the adaptive immune response. Characterisation of the MHC-II region of bats is crucial for understanding the evolution of the MHC and of the role of pathogens in shaping the immune system...
May 18, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28521529/potential-of-novel-drug-delivery-systems-in-the-management-of-topical-candidiasis
#13
Mahima Mathur, Kusum Devi Vemula
High prevalence of topical fungal infections is perceived in majority of nations worldwide accounting for numerous serious systemic complications. Of several fungal infections, candidiasis is one of the widespread infections which is manifested due to localization and proliferation of fungi. Present pharmacotherapy offers an effective treatment but possesses serious limitations like inadequate solubility, ineffectiveness in lowering diseased condition and patient incompliance. Several attempts to overcome these shortcomings and building suitable technology platforms for development of appropriate dosage forms which can enhance effectiveness, patient acceptability while maintaining safety, efficacy and affordability of drug delivery, have been made...
May 18, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28520093/verticillium-dahliae-transcription-factor-vdftf1-regulates-the-expression-of-multiple-secreted-virulence-factors-and-is-required-for-full-virulence-in-cotton
#14
Wen-Qi Zhang, Yue-Jing Gui, Dylan P G Short, Ting-Gang Li, Dan-Dan Zhang, Lei Zhou, Chun Liu, Yu-Ming Bao, Krishna V Subbarao, Jie-Yin Chen, Xiao-Feng Dai
Fungal transcription factors (TFs) implicated in the regulation of virulence gene expression have been identified in a number of plant pathogens. In Verticillium dahliae, despite its agricultural importance, few regulators of transcription have been characterized. In this study, a T-DNA insertional mutant with significantly reduced virulence toward cotton was identified. The T-DNA was traced to VdFTF1, a gene encoding a TF containing a Fungal_trans domain. Transient expression in onion epidermal cells indicated that VdFTF1 is localized to the nucleus...
May 18, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28516956/selective-bet-bromodomain-inhibition-as-an-antifungal-therapeutic-strategy
#15
Flore Mietton, Elena Ferri, Morgane Champleboux, Ninon Zala, Danièle Maubon, Yingsheng Zhou, Mike Harbut, Didier Spittler, Cécile Garnaud, Marie Courçon, Murielle Chauvel, Christophe d'Enfert, Boris A Kashemirov, Mitchell Hull, Muriel Cornet, Charles E McKenna, Jérôme Govin, Carlo Petosa
Invasive fungal infections cause significant morbidity and mortality among immunocompromised individuals, posing an urgent need for new antifungal therapeutic strategies. Here we investigate a chromatin-interacting module, the bromodomain (BD) from the BET family of proteins, as a potential antifungal target in Candida albicans, a major human fungal pathogen. We show that the BET protein Bdf1 is essential in C. albicans and that mutations inactivating its two BDs result in a loss of viability in vitro and decreased virulence in mice...
May 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28516246/aspergillus-species-in-bronchiectasis-challenges-in-the-cystic-fibrosis-and-non-cystic-fibrosis-airways
#16
REVIEW
Sanjay H Chotirmall, Maria Teresa Martin-Gomez
Bronchiectasis is a chronic irreversible airway abnormality associated with infectious agents that either cause or superinfect the airways. While the role of bacteria is well studied, much remains to be determined about fungi in both cystic fibrosis- and non-cystic fibrosis-related bronchiectasis. The airway is constantly exposed to inhaled ambient moulds of which Aspergillus represent the most ubiquitous. In a normal healthy host, this situation is of little consequence. The presence of anatomical or immunological abnormalities such as those in bronchiectasis leads to a range of fungal-related pathologies from asymptomatic airway colonization to fungal sensitization, allergic bronchopulmonary aspergillosis or chronic pulmonary aspergillosis...
May 17, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28516088/the-candida-albicans-biofilm-matrix-composition-structure-and-function
#17
Christopher G Pierce, Taissa Vila, Jesus A Romo, Daniel Montelongo-Jauregui, Gina Wall, Anand Ramasubramanian, Jose L Lopez-Ribot
A majority of infections caused by Candida albicans-the most frequent fungal pathogen-are associated with biofilm formation. A salient feature of C. albicans biofilms is the presence of the biofilm matrix. This matrix is composed of exopolymeric materials secreted by sessile cells within the biofilm, in which all classes of macromolecules are represented, and provides protection against environmental challenges. In this review, we summarize the knowledge accumulated during the last two decades on the composition, structure, and function of the C...
March 2017: Journal of Fungi (Basel, Switzerland)
https://www.readbyqxmd.com/read/28516039/a-plane-screw-fixation-is-a-nidus-for-paecilomyces-sinusitis-in-a-patient-with-aspirin-exacerbated-respiratory-disease
#18
Anthony M Szema, Cyrus Jo
Titanium plane screw fixation of the frontal sinus is an approach used by otolaryngologists to obliterate this space in an attempt to reduce sinus infections. In this case, however, the titanium used became a nidus of infection which cultured the fungus Paecilomyces. The patient also had a hypersensitivity reaction to mold with positive skin tests and IgE, as well as eosinophilic esophagitis. Treatment entailed anti-fungals, anti-IgE, and fungal immunotherapy to multiple fungal antigens prevalent to the geographic region...
2017: IDCases
https://www.readbyqxmd.com/read/28515716/antifungal-activity-of-the-biphosphinic-cyclopalladate-c7a-against-candida-albicans-yeast-forms-in-vitro-and-in-vivo
#19
Julian E Muñoz, Diego C P Rossi, Kelly Ishida, Cristina C Spadari, Marcia S C Melhem, Daniel M Garcia, Antonio C F Caires, Carlos P Taborda, Elaine G Rodrigues
Vulvovaginal and invasive candidiasis are frequent conditions in immunosuppressed individuals caused by Candida albicans and non-albicans Candida spp. Fluconazole and Amphotericin B are the main drugs used to fight the infection. However, resistance to fluconazole and other azole antifungal drugs is an important clinical problem that encourages the search for new therapeutic alternatives. In this work, we evaluate the antifungal activity of the biphosphinic cyclopalladate C7a in the in vitro and in vivo model...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28513846/a-calmodulin-like-protein-regulates-plasmodesmal-closure-during-bacterial-immune-responses
#20
Bo Xu, Cécilia Cheval, Anuphon Laohavisit, Bradleigh Hocking, David Chiasson, Tjelvar S G Olsson, Ken Shirasu, Christine Faulkner, Matthew Gilliham
Plants sense microbial signatures via activation of pattern recognition receptors (PPRs), which trigger a range of cellular defences. One response is the closure of plasmodesmata, which reduces symplastic connectivity and the capacity for direct molecular exchange between host cells. Plasmodesmal flux is regulated by a variety of environmental cues but the downstream signalling pathways are poorly defined, especially the way in which calcium regulates plasmodesmal closure. Here, we identify that closure of plasmodesmata in response to bacterial flagellin, but not fungal chitin, is mediated by a plasmodesmal-localized Ca(2+) -binding protein Calmodulin-like 41 (CML41)...
May 17, 2017: New Phytologist
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