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https://www.readbyqxmd.com/read/29346493/antimicrobial-studies-using-the-therapeutic-tissue-cross-linking-agent-sodium-hydroxymethylglycinate-implication-for-treating-infectious-keratitis
#1
Patrick B Rapuano, Alexandra H Scanameo, Daeryl E Amponin, Sefy A Paulose, Mariya Zyablitskaya, Anna Takaoka, Leejee H Suh, Takayuki Nagasaki, Stephen L Trokel, David C Paik
Purpose: Our recent studies raise the possibility of using sodium hydroxymethylglycinate (SMG), for pharmacologic therapeutic tissue cross-linking (TXL) of the cornea. The present study was performed to evaluate the antimicrobial effects of SMG for potential use in treating infectious keratitis. Methods: In initial (group 1) experiments, methicillin-sensitive Staphylococcus aureus (MSSA), methicillin-resistant Staphylococcus aureus (MRSA), and Pseudomonas aeruginosa (PA) were treated with SMG (10-40 mM) for 10 to 120 minutes...
January 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29346398/dual-function-of-edta-with-silver-nanoparticles-for-root-canal-treatment-a-novel-modification
#2
Juan M Martinez-Andrade, Miguel Avalos-Borja, Alfredo R Vilchis-Nestor, Luis O Sanchez-Vargas, Ernestina Castro-Longoria
The chelating and antimicrobial capacity of a novel modification of 17% EDTA with silver nanoparticles (AgNPs) (EDTA-AgNPs) was evaluated in-vitro for root canal treatment (RCT). The EDTA-AgNPs solution was characterized by UV-Vis spectroscopy, ζ-potential and high-resolution transmission electron microscopy (HRTEM). Antimicrobial capacity was evaluated against Candida albicans and Staphylococcus aureus in planktonic and biofilm cells by broth macrodilution (24 h) and XTT assays, (1, 10 and 30 min) respectively...
2018: PloS One
https://www.readbyqxmd.com/read/29345117/candida-auris-a-systematic-review-and-meta-analysis-of-current-updates-on-an-emerging-multidrug-resistant-pathogen
#3
John Osei Sekyere
From 2009, Candida auris has emerged as a multidrug-resistant ascomycete yeast pathogen with the capacity for easy transmission between patients and hospitals, as well as persistence on environmental surfaces. Its association with high mortalities, breakthrough and persistent candidaemia, inconsistencies in susceptibility testing results, misidentification by available commercial identification systems and treatment failure, complicates its management and detection. Within the last nine years, C. auris has been increasingly reported from far-Eastern Asia, the Middle East, Africa, Europe, South and North America with substantial fatalities and misidentification...
January 18, 2018: MicrobiologyOpen
https://www.readbyqxmd.com/read/29340981/nanolipid-gel-of-an-antimycotic-drug-for-treating-vulvovaginal-candidiasis-development-and-evaluation
#4
Dnyanesh Takalkar, Namita Desai
This paper focuses on the development and evaluation of mucoadhesive vaginal gel of fluconazole using nanolipid carriers to enhance tissue deposition in treating vulvovaginal candidiasis. Treatment of vulvovaginal candidiasis includes antimycotic agents prescribed for 1 to 7 days or longer, in relapse either orally or topically. The delivery of fluconazole as nanolipid carriers in vaginal gel can be proposed as suitable alternative to the existing conventional formulations to improve the patient acceptability, compliance and localized drug action...
January 16, 2018: AAPS PharmSciTech
https://www.readbyqxmd.com/read/29340656/antagonistic-effect-of-saccharomyces-cerevisiae-ktp-and-issatchenkia-occidentalis-apc-on-hyphal-development-and-adhesion-of-candida-albicans
#5
K Lohith, K A Anu-Appaiah
The morphological transition from yeast to a hyphal form, as well as the adhesion capability to the gastrointestinal tract, are implicated virulent determinant in Candida albicans and could be potential targets for prevention of the opportunistic pathogen. Based on this rationale, two yeast strains Saccharomyces cerevisiae KTP and Issatchenkia occidentalis ApC along with reference strain Saccharomyces boulardii NCDC 363 were screened for the probiotic potential. Characters like pH, temperature, bile, simulated gastrointestinal juice tolerance tests, and Caco-2 cell line adhesion assay were determined in the present study...
January 11, 2018: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29339278/amphotericin-b-loaded-sulphonated-chitosan-nanoparticles-for-targeting-macrophages-to-treat-intracellular-candida-glabrata-infections
#6
Murali Sandhya, Aparna V, Suresh Maneesha K, Biswas Raja, Jayakumar R, Sathianarayanan S
The current study assesses the potential of functionalised chitosan nanoparticles (CNPs) for proficient macrophage delivery of amphotericin B (AmpB) for the management of Candida glabrata fungemia. Chitosan was functionalised by the method of sulfation by using chlorosulfonic acid and the developed compound was confirmed by FTIR, 1H NMR and degree of sulfation and CHNS analysis. Amphotericin B encapsulated sulfated chitosan (AmpB-SCNPs), when characterized showed a hydrodynamic diameter of 310 ± 14 nm and zeta potential of 41...
January 12, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29339242/combined-acitretin-and-candida-antigen-versus-either-agent-alone-in-the-treatment-of-recalcitrant-warts
#7
Ahmad Nofal, Fathia Khattab, Eman Nofal, Amina Elgohary
No abstract text is available yet for this article.
January 12, 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29335835/etiology-of-invasive-candidosis-agents-in-russia-a-multicenter-epidemiological-survey
#8
N V Vasilyeva, E R Raush, M V Rudneva, T S Bogomolova, A E Taraskina, Yong Fang, Fengmin Zhang, N N Klimko
A multicenter prospective epidemiological survey on the etiologic agents of invasive candidosis was conducted in Russia in the period of 2012-2014. Samples were collected from 284 patients with invasive candidosis and Candida species isolated by culture. The species were identified by DNA sequencing and MALDI-TOF massspectrometry. A total of 322 isolates were recovered, in which 96% of Сandida species belonged to six major species, namely, C. albicans (43.2%), C. parapsilosis (20.2%), C. glabrata (11.5%), C...
January 16, 2018: Frontiers of Medicine
https://www.readbyqxmd.com/read/29326852/unusual-course-of-crystalline-keratopathy-in-a-patient-with-graft-versus-host-disease
#9
Başak Bostancı, Yonca Aydın Akova
We present a case of infectious crystalline keratopathy in a patient with Graft-versus-Host disease (GVHD) who developed satellite fungal keratitis. A 51-year-old man was referred for bilateral total persistent corneal epithelial defects with severe dry eye. Although persistent epithelial defect healed with medical therapy, he developed stromal keratitis with satellite lesions confirmed to be secondary to Candida albicans. After three months of antifungal treatment and debridement, improvement of the infiltrates was obtained...
December 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/29325916/proanthocyanidin-polymeric-tannins-from-stryphnodendron-adstringens-are-effective-against-fluconazole-resistant-candida-spp-and-treat-vaginal-candidiasis
#10
Aline Luiza Duarte de Freitas, Vanessa Kaplum, Diego Conrado Pereira Rossi, Leandro Buffoni Roque da Silva, Márcia de Souza Carvalho Melhem, Carlos Pelleschi Taborda, João Carlos Palazzo de Mello, Celso Vataru Nakamura, Kelly Ishida
ETHNOPHARMACOLOGICAL RELEVANCE: The stem bark of Stryphnodendron adstringens (Mart.) Coville is popularly used as anti-inflammatory, astringent and in the treatment of wounds and vaginal infections. Several pharmacological activities have been scientifically proven by "in vitro" and "in vivo" experimental assays for antibacterial, antiviral, antiprotozoan, anti-inflammatory and antioxidant. AIM OF THE STUDY: We investigated whether proanthocyanidin polymeric tannins from the Stryphnodendron adstringens steam bark with antifungal activity against Candida albicans in vitro are also active against planktonic and biofilm cells of Candida non-albicans (CNA, including fluconazole-resistant isolates) and are capable of controlling Candida vaginitis in vivo...
January 8, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29325218/equal-candida-score-an-ecmm-score-derived-from-current-guidelines-to-measure-quality-of-clinical-candidemia-management
#11
Sibylle C Mellinghoff, Martin Hoenigl, Philipp Koehler, Anil Kumar, Katrien Lagrou, Cornelia Lass-Flörl, Jacques F Meis, Vidya Menon, Riina Rautemaa-Richardson, Oliver A Cornely
Candida species frequently cause blood stream infections and are reported to be the third to tenth most commonly isolated pathogens. Guidelines and standardized treatment algorithms provided by professional organisations aim to facilitate decision-making regarding diagnosis, management, and treatment of candidemia. In routine clinical practise, however, it may be challenging to comply with these guidelines. The reasons include lack of familiarity or feasibility to adherence, but also their length and complexity...
January 11, 2018: Mycoses
https://www.readbyqxmd.com/read/29324651/incidence-microbiological-profile-and-risk-factors-of-healthcare-associated-infections-in-intensive-care-units-a-10-year-observation-in-a-provincial-hospital-in-southern-poland
#12
Małgorzata Kołpa, Marta Wałaszek, Agnieszka Gniadek, Zdzisław Wolak, Wiesław Dobroś
Healthcare-associated infections (HAIs) occurring in patients treated in an intensive care unit (ICU) are serious complications in the treatment process. Aetiological factors of these infections can have an impact on treatment effects, treatment duration and mortality. The aim of the study was to determine the prevalence and microbiological profile of HAIs in patients hospitalized in an ICU over a span of 10 years. The active surveillance method was used to detect HAIs in adult patients who spent over 48 h in a general ICU ward located in southern Poland between 2007 and 2016...
January 11, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29324336/new-1-5-and-2-5-disubstituted-tetrazoles-dependent-activity-towards-surface-barrier-of-candida-albicans
#13
Monika Staniszewska, Małgorzata Gizińska, Ewa Mikulak, Klaudia Adamus, Mirosława Koronkiewicz, Edyta Łukowska-Chojnacka
A series of novel tetrazole derivatives was synthetized using N-alkylation or Michael-type addition reactions, and screened for their fungistatic potential against Candida albicans (the lack of endpoint = 100%). Among them, the selected compounds 2d, 4b, and 6a differing in substituents at the tetrazole ring were non-toxic to Galleria mellonella larvae in vivo and exerted slight toxicity against Caco-2 in vitro (CC50 at 256 μg/mL). An antagonistic effect of tetrazole derivatives 2d, 4b, and 6a respectively in combination with Fluconazole was shown using the checker board and colorimetric methods (fractional inhibitory concentration indexes FICIs >1)...
December 30, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29323823/atrioesophageal-fistula-a-rare-complication-of-radiofrequency-ablation
#14
Inbar Saporta, Adithya Chennamadhavuni, Michael J Dolan
75-year-old woman was admitted with fever, chills, altered mentation, and right-sided weakness. A month earlier, she had undergone catheter radiofrequency ablation for treatment of chronic atrial fibrillation. A magnetic resonance imaging scan of her brain revealed septic emboli with multiple bilateral cerebral and cerebellar infarcts, as well as extensive bilateral leptomeningeal enhancement. Blood cultures were positive for Streptococcus mitis, Rothia mucilaginosa, Streptococcus pneumonia, and Candida albicans, which suggested a connection between gastrointestinal and cardiovascular systems...
June 2017: WMJ: Official Publication of the State Medical Society of Wisconsin
https://www.readbyqxmd.com/read/29316739/development-of-candida-albicans-biofilms-is-diminished-by-paeonia-lactiflora-through-obstruction-of-cell-adhesionand-cell-lysis
#15
Heung-Shick Lee, Younhee Kim
Candida albicans infections are problematic to treat often due to antifungal resistance, since most infections of the pathogen are associated with biofilms. The abilities of C. albicans to switch from budding yeast to filamentous hyphae, and adhere to host cells or various surfaces support biofilm formation. We previously reported that the ethanol extract from Paeonia lactiflora not only inhibits cell wall synthesis but also causes depolarization and permeabilization of cell membrane in C. albicans. In this study, we found that the P...
January 11, 2018: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29315506/optimization-of-voriconazole-therapy-for-the-treatment-of-invasive-fungal-infections-in-adults
#16
Naveen Mangal, Issam Hamadeh, Meghan J Arwood, Larisa H Cavallari, Tanay S Samant, Kenneth P Klinker, Jurgen Bulitta, Stephan Schmidt
Therapeutic concentrations of voriconazole in invasive fungal infections (IFIs) are ensured using drug monitoring approach, which relies on attainment of steady state pharmacokinetics. For voriconazole, time to reach steady state can vary from 5-7 days, not optimal for critically ill patients. We developed a population pharmacokinetic/pharmacodynamic model-based approach to predict doses which can maximize the net benefit (probability of efficacy - probability of adverse events) and ensure therapeutic concentrations, early on during treatment...
January 9, 2018: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29315379/anti-biofilm-activity-of-antibody-directed-against-surface-antigen-cr3-rp-comparison-of-candida-albicans-and-candida-dubliniensis
#17
Jaroslava Chupácová, Elisa Borghi, Giulia Morace, Agata Los, Helena Bujdáková
Candida albicans and Candida dubliniensis are related yeasts that differ in the expression of virulence-associated proteins involved in adherence and biofilm development. CR3-RP (complement receptor 3-related protein) is one of the surface antigens expressed by Candida species. The main objective of this research was to elucidate the effect of the polyclonal anti-CR3-RP antibody (Ab) on adherence and the biofilm formed by C. albicans SC5314 and C. dubliniensis CBS 7987 and 2 clinical isolates in vitro, ex vivo, and in vivo...
January 5, 2018: Pathogens and Disease
https://www.readbyqxmd.com/read/29314762/opportunistic-infections-in-patients-with-idiopathic-inflammatory-myopathies
#18
Ada Redondo-Benito, Adrian Curran, Ana Villar-Gomez, Ernesto Trallero-Araguas, Andreu Fernández-Codina, Iago Pinal-Fernandez, Jose Ángel Rodrigo-Pendás, Albert Selva-O'Callaghan
AIM: To describe the prevalence, clinical characteristics and risk factors of opportunistic infection (OI) in a cohort of patients with inflammatory myopathies, and compare mortality rates between those with and without OIs. METHODS: In total, 204 patients from our myositis cohort were reviewed to identify patients who had experienced an OI during the period 1986-2014. The patients' clinical characteristics, treatments received, and outcomes were systematically recorded...
January 5, 2018: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29311085/the-rim-pathway-mediates-antifungal-tolerance-in-candida-albicans-through-newly-identified-rim101-transcriptional-targets-including-hsp90-and-ipt1
#19
Cécile Garnaud, Encar García-Oliver, Yan Wang, Danièle Maubon, Sébastien Bailly, Quentin Despinasse, Morgane Champleboux, Jérôme Govin, Muriel Cornet
Invasive candidiasis (IC) is a major cause of morbidity and mortality despite antifungal treatment. Azoles and echinocandins are used as first-line therapies in IC. However, their efficacy is limited by yeast tolerance and the emergence of acquired resistance. Tolerance is a reversible stage due to the yeast's capacity to counter the antifungal drug exposure, leading to persistent growth. In C. albicans, multiple stress signaling pathways have been shown to contribute to this adaptation. Among those, the Rim pH-responsive pathway, through its transcription factor Rim101p, was shown to mediate azole and echinocandin tolerance...
January 8, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29311065/in-vitro-and-in-vivo-evaluation-of-the-antifungal-activity-of-apx001a-apx001-against-candida-auris
#20
Christopher L Hager, Emily L Larkin, Lisa Long, Fatima Z Abidi, Karen J Shaw, Mahmoud A Ghannoum
Candida auris is an emerging multidrug-resistant yeast that has been responsible for invasive infections associated with high morbidity and mortality. C. auris strains often demonstrate high fluconazole and amphotericin B minimum inhibitory concentration values, and some strains are resistant to all 3 major antifungal classes. Here we evaluated the susceptibility of 16 C. auris clinical strains, isolated from a wide geographical area, to 10 antifungal agents including APX001A, a novel agent that inhibits the fungal protein Gwt1 (GPI-anchored wall transfer protein 1)...
January 8, 2018: Antimicrobial Agents and Chemotherapy
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