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Candida albican

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https://www.readbyqxmd.com/read/28645176/efficacy-of-histatin5-in-a-murine-model-of-vulvovaginal-candidiasis-caused-by-candida-albicans
#1
Hong Liao, Shanling Liu, He Wang, Hang Su, Zhenjun Liu
Histatin5 (Hst-5) is a member of the histatin family of antimicrobial peptides secreted by human parotid and submandibular glands. With the natural antibacterial activity, it plays an important role in the first-line barrier of oral cave against pathogens, especially for the fungal intrusion. In this study, we explored the utility of Hst-5 in the treatment of vulvovaginal candidiasis, a common condition of women of the childbearing age. we used a synthesized Hst-5 over five consecutive days as the topical treatment in a murine model of vulvovaginal candidiasis...
June 22, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28643723/management-of-a-case-of-candida-albicans-endogenous-endophthalmitis-with-intravitreal-caspofungin
#2
Harshali Manish Yadav, Boben Thomas, Cherian Thampy, Tandava Krishnan Panaknti
We report a case of Candida albicans endogenous endophthalmitis treated with intravitreal caspofungin. The patient was a known case of acute lymphoblastic leukemia on chemotherapy and presented to us with features suggestive of endogenous endophthalmitis. He was treated initially with intravenous (IV) caspofungin and intravitreal amphotericin B. Patients condition worsened after IV caspofungin was replaced by amphotericin B necessitating a core vitrectomy. The patient was given the option of off-label caspofungin intravitreal injection for which the patient consented...
June 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28642757/the-fungal-pathogen-candida-glabrata-does-not-depend-on-surface-ferric-reductases-for-iron-acquisition
#3
Franziska Gerwien, Abu Safyan, Stephanie Wisgott, Sascha Brunke, Lydia Kasper, Bernhard Hube
Iron acquisition is a crucial virulence determinant for many bacteria and fungi, including the opportunistic fungal pathogens Candida albicans and C. glabrata. While the diverse strategies used by C. albicans for obtaining iron from the host are well-described, much less is known about the acquisition of this micronutrient from host sources by C. glabrata - a distant relative of C. albicans with closer evolutionary ties to Saccharomyces cerevisiae, which nonetheless causes severe clinical symptoms in humans...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28642749/rna-seq-reveals-enhanced-sugar-metabolism-in-streptococcus-mutans-co-cultured-with-candida-albicans-within-mixed-species-biofilms
#4
Jinzhi He, Dongyeop Kim, Xuedong Zhou, Sang-Joon Ahn, Robert A Burne, Vincent P Richards, Hyun Koo
Early childhood caries (ECC), which can lead to rampant tooth-decay that is painful and costly to treat, is one of the most prevalent infectious diseases affecting children worldwide. Previous studies support that interactions between Streptococcus mutans and Candida albicans are associated with the pathogenesis of ECC. The presence of Candida enhances S. mutans growth, fitness and accumulation within biofilms in vitro, although the molecular basis for these behaviors is undefined. Using an established co-cultivation biofilm model and RNA-Seq, we investigated how C...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28642550/cytokines-regulate-complement-receptor-immunoglobulin-expression-and-phagocytosis-of-candida-albicans-in-human-macrophages-a-control-point-in-anti-microbial-immunity
#5
Usma Munawara, Annabelle G Small, Alex Quach, Nick N Gorgani, Catherine A Abbott, Antonio Ferrante
Complement Receptor Immunoglobulin (CRIg), selectively expressed by macrophages, plays an important role in innate immunity by promoting phagocytosis of bacteria. Thus modulation of CRIg on macrophages by cytokines can be an important mechanism by which cytokines regulate anti-microbial immunity. The effects of the cytokines, tumor necrosis factor, transforming growth factor-β1, interferon-γ, interleukin (IL)-4, IL-13, IL-10, IL-1β, IL-6, lymphotoxin-α, macrophage-colony stimulating factor (M-CSF) and GM-CSF on CRIg expression were examined in human macrophages...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642006/exoenzyme-activity-and-possibility-identification-of-candida-dubliniensis-among-candida-albicans-species-isolated-from-vaginal-candidiasis
#6
Maryam Jafari, Samira Salari, Keyvan Pakshir, Kamiar Zomorodian
OBJECTIVES: Vulvovaginal candidiasis (VVC) or vaginal candidiasis is a common fungal infection of the genitals causing inflammation, irritation, itching, and vaginal discharge. Common yeast infections are caused by the yeast species C. albicans. However, there are other species of Candida such as C. dubliniensis which are considered as the causative agents of this infection. Hydrolytic enzymes such as proteinase and coagulase are known as virulence factors. The aim of this study was the molecular confirmation and differentiation of C...
June 19, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28641919/prevalence-of-candida-africana-and-candida-dubliniensis-in-vulvovaginal-candidiasis-first-turkish-candida-africana-isolates-from-vulvovaginal-candidiasis
#7
G Hazirolan, H U Altun, R Gumral, N C Gursoy, B Otlu, B Sancak
INTRODUCTION: Candida africana and C. dubliniensis are closely related species of C. albicans. Current phenotypic methods are not suitable to accurately distinguish all the species belonging to the C. albicans complex. Several molecular-based methods have recently been designed for discriminating among closely related Candida species. The aim of this study was to establish the prevalence of C. dubliniensis and C. africana in vulvovaginal samples with phenotypic and genotypic methods...
June 19, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28641915/the-antimicrobial-spectrum-of-xeroform-%C3%A2
#8
David J Barillo, Anthony R Barillo, Sarah Korn, Kan Lam, Paul S Attar
INTRODUCTION/BACKGROUND: Xeroform(®) is a petrolatum-based fine mesh gauze containing 3% bismuth tribromophenate. Bismuth, similar to other metals, has antimicrobial properties. Xeroform(®) has been used for decades in burn and plastic surgery as a donor site dressing and as a covering for wounds or partial thickness burns. Despite this, the antimicrobial spectrum of Xeroform(®) remains largely unknown. We examined the in-vitro efficacy of Xeroform(®) against common burn pathogens using zone-of-inhibition methodology in a commercial research facility...
June 19, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28640920/pathogen-specific-mortality-in-very-low-birth-weight-infants-with-primary-bloodstream-infection
#9
Brar C Piening, Christine Geffers, Petra Gastmeier, Frank Schwab
OBJECTIVE: Mortality in very low birth weight infants following microbiology confirmed primary bloodstream infections varies with the type of causative pathogen. Given evidence from other studies that infections with gram negative bacteria and fungi cause a higher case fatality risk. We tried to confirm this in a nation-wide multi-center trial. METHODS: A cohort of 55,465 very low birth weight infants from 242 neonatal departments participating in the German national neonatal infection surveillance system NEO-KISS was used to investigate differences in the case fatality risk of microbiology confirmed primary bloodstream infections according to individual pathogens...
2017: PloS One
https://www.readbyqxmd.com/read/28640746/a-chromosome-4-trisomy-contributes-to-increased-fluconazole-resistance-in-a-clinical-isolate-of-candida-albicans
#10
Matthew Z Anderson, Amrita Saha, Abid Haseeb, Richard J Bennett
Candida albicans is an important opportunistic fungal pathogen capable of causing both mucosal and disseminated disease. Infections are often treated with fluconazole, a front-line antifungal drug that targets the biosynthesis of ergosterol, a major component of the fungal cell membrane. Resistance to fluconazole can arise through a variety of mechanisms, including gain-of-function mutations, loss of heterozygosity events and aneuploidy. The clinical isolate P60002 was found to be highly resistant to azole-class drugs, yet lacked mutations or chromosomal rearrangements known to be associated with azole resistance...
June 22, 2017: Microbiology
https://www.readbyqxmd.com/read/28640352/synthesis-and-evaluation-of-arylamidine-derivatives-for-new-antimicrobial-and-cytotoxic-activities
#11
Zenaide S Monte, Amanda M Silva, Gláucia M S Lima, Teresinha G DA Silva, Karla M R Marques, Maria D Rodrigues, Emerson P S Falcão, Sebastião J Melo
A series of arylamidines 3a-j was designed, synthesized and investigated for antimicrobial activity. Structures of the compounds were confirmed by IR, 1H-NMR and 13C-NMR and a 2D spectroscopic study was performed. A preliminary screening of the antimicrobial tests clearly showed that three out of ten arylamidines, viz, 3f, 3g and 3i, were effective against all the gram-negative bacteria: Klebsiella pneumoniae, Pseudomonas aeruginosa and Salmonella enteric; and against the yeast, candida albicans. Further, the Minimum Inhibitory Concentrations (MIC) against the bacteria and yeast were determined...
April 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28638380/candida-albicans-yeast-pseudohyphal-and-hyphal-morphogenesis-differentially-affects-immune-recognition
#12
Liliane Mukaremera, Keunsook K Lee, Hector M Mora-Montes, Neil A R Gow
Candida albicans is a human opportunist pathogen that can grow as yeast, pseudohyphae, or true hyphae in vitro and in vivo, depending on environmental conditions. Reversible cellular morphogenesis is an important virulence factor that facilitates invasion of host tissues, escape from phagocytes, and dissemination in the blood stream. The innate immune system is the first line of defense against C. albicans infections and is influenced by recognition of wall components that vary in composition in different morphological forms...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28636955/inflammatory-ly6c-high-monocytes-protect-against-candidiasis-through-il-15-driven-nk-cell-neutrophil-activation
#13
Jorge Domínguez-Andrés, Lidia Feo-Lucas, María Minguito de la Escalera, Leticia González, María López-Bravo, Carlos Ardavín
Neutrophils play a crucial role in defense against systemic candidiasis, a disease associated with a high mortality rate in patients receiving immunosuppressive therapy, although the early immune mechanisms that boost the candidacidal activity of neutrophils remain to be defined in depth. Here, we used a murine model of systemic candidiasis to explore the role of inflammatory Ly6C(high) monocytes in NK cell-mediated neutrophil activation during the innate immune response against C. albicans. We found that efficient anti-Candida immunity required a collaborative response between the spleen and kidney, which relied on type I interferon-dependent IL-15 production by spleen inflammatory Ly6C(high) monocytes to drive efficient activation and GM-CSF release by spleen NK cells; this in turn was necessary to boost the Candida killing potential of kidney neutrophils...
June 20, 2017: Immunity
https://www.readbyqxmd.com/read/28636319/green-catanionic-gemini-surfactant-lichenysin-mixture-improved-surface-antimicrobial-and-physiological-properties
#14
Albert Ruiz, Aurora Pinazo, Lourdes Pérez, Angeles Manresa, Ana M M Marqués
Catanionic surfactant mixtures form a wide variety of organized assemblies and aggregates with improved physicochemical and biological properties. The green catanionic mixture C3(CA)2:lichenysin (molar ratio 8:2) showed antimicrobial synergies against Yersinia enterocolitica, Bacillus subtilis, Escherichia coli O157:H7 and Candida albicans. Flow cytometry and viability studies indicated that this catanionic mixture increases the probability of Y. enterocolitica (38.2%) and B. subtilis (17.1%) cells entering a viable but nonculturable state...
June 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28636236/assessment-of-silibinin-as-a-potential-antifungal-agent-and-investigation-of-its-mechanism-of-action
#15
Dae Gyu Yun, Dong Gun Lee
Silibinin, which is derived from Silybum marianum (milk thistle), has used as a traditional remedy for liver or biliary disorders and known to have superior antioxidant activity. In addition, silibinin was recently reported to have antifungal effect related to fungal apoptosis against Candida albicans and the interest in the therapeutic effect is increasing. In this study, we found another mode of antifungal action of silibinin and its antibiofilm activity on C. albicans. To investigate influence on fungal plasma membrane, propidium iodide and bis-(1, 3-dibutylbarbituric acid) trimethineoxonol [DiBAC4 (3)] assay were primarily carried out...
June 21, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28635170/alginate-oligosaccharides-modify-hyphal-infiltration-of-candida-albicans-in-an-in-vitro-model-of-invasive-human-candidosis
#16
Manon F Pritchard, Alison Jack, Lydia C Powell, Hina Sadh, Philip D Rye, Katja E Hill, David W Thomas
AIMS: A novel alginate oligomer (OligoG CF-5/20) has been shown to potentiate antifungal therapy against a range of fungal pathogens. The current study assessed the effect of this oligomer on in vitro virulence factor expression and epithelial invasion by Candida species. METHODS AND RESULTS: Plate substrate assays and epithelial models were used to assess Candida albicans (CCUG 39343 and ATCC 90028) invasion, in conjunction with confocal laser-scanning microscopy and histochemistry...
June 21, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28634479/whole-blood-profiling-of-bacillus-calmette-gu%C3%A3-rin-induced-trained-innate-immunity-in-infants-identifies-epidermal-growth-factor-il-6-platelet-derived-growth-factor-ab-bb-and-natural-killer-cell-activation
#17
Steven G Smith, Johanneke Kleinnijenhuis, Mihai G Netea, Hazel M Dockrell
Vaccination of infants with bacillus Calmette-Guérin (BCG) activates both the innate and adaptive arms of the immune response. The antimycobacterial effects of these responses most likely account for the ability of BCG to protect against childhood forms of tuberculosis (TB). There is also evidence for a heterologous protective effect of BCG vaccination against TB-unrelated mortality in low birth weight infants. A possible mechanism of action of this effect, the induction of trained innate immunity, has been demonstrated when cells from BCG-vaccinated adults are restimulated in vitro with non-related microbial stimuli...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28634471/a-chitin-binding-protein-purified-from-moringa-oleifera-seeds-presents-anticandidal-activity-by-increasing-cell-membrane-permeability-and-reactive-oxygen-species-production
#18
João X S Neto, Mirella L Pereira, Jose T A Oliveira, Lady C B Rocha-Bezerra, Tiago D P Lopes, Helen P S Costa, Daniele O B Sousa, Bruno A M Rocha, Thalles B Grangeiro, José E C Freire, Ana Cristina O Monteiro-Moreira, Marina D P Lobo, Raimunda S N Brilhante, Ilka M Vasconcelos
Candida species are opportunistic pathogens that infect immunocompromised and/or immunosuppressed patients, particularly in hospital facilities, that besides representing a significant threat to health increase the risk of mortality. Apart from echinocandins and triazoles, which are well tolerated, most of the antifungal drugs used for candidiasis treatment can cause side effects and lead to the development of resistant strains. A promising alternative to the conventional treatments is the use of plant proteins...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28633584/variation-of-alkaloid-contents-and-antimicrobial-activities-of-papaver-rhoeas-l-growing-in-turkey-and-northern-cyprus
#19
İlkcan Çoban, Gizem Gülsoy Toplan, Berna Özbek, Çağlayan Unsal Gürer, Günay Sarıyar
CONTEXT: Papaver rhoeas L. (Papaveraceae) corn poppy, widely distributed in Turkey, is used to make a cough syrup for children, as a tea for disturbed sleep, for pain relief and as a sedative in folk medicine. OBJECTIVE: Samples of P. rhoeas collected from eight different locations in Turkey and three from northern Cyprus were investigated for their alkaloid content and screened for their antimicrobial activities. MATERIALS AND METHODS: From the aerial parts of P...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28632834/-bladder-fungus-ball-by-candida-tropicalis-a-pediatric-case-report
#20
Ecil Santos, Mónica Mercado, Antonio Luévanos, Pedro Martínez, Martín Guerrero
Vesical fungus ball is a mobile, oval and echogenic mass as a result of accumulation of long and wide numerous hyphae. Fungal urinary tract infection incidence has increased notoriously and there are isolated yeast in 7 to 8% of urine cultures. Different species of Candida are cause of urinary tract infection. Epidemiologically, the first isolated pathogen is Candida albicans, followed by Candida tropicalis. Bladder poll has been documented as the most important risk factor for candiduria in critical patients into intensive care...
April 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
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