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https://www.readbyqxmd.com/read/28338958/molecular-cloning-and-characterization-of-antimicrobial-peptides-from-skin-of-hylarana-guentheri
#1
Zhu Dong, Wenjie Luo, Hengren Zhong, Manchuriga Wang, Yanting Song, Shiming Deng, Yingxia Zhang
The cDNAs encoding antimicrobial peptides (AMPs) in the skin of Hylarana guentheri were identified, namely temporin (five peptides, termed temporin-GHa-GHd and temporin-GUa), brevinin-1 (one peptide, brevinin-1GUb), and brevinin-2 (eight peptides, brevinin-2GHd-2GHj, and brevinin-2GHb). Eleven of the 14 peptides have novel primary structures. Synthesized temporin GHa-GHd have broad-spectrum antimicrobial activities against Gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis), Gram-negative bacteria (Escherichia coli, Vibrio alginolyticus, and Pseudomonas aeruginosa), as well as fungus (Candida albicans)...
March 18, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28334124/a-newly-identified-amino-acid-substitution-t123i-in-the-14%C3%AE-demethylase-erg11p-of-candida-albicans-confers-azole-resistance
#2
YongQin Wu, Ning Gao, Cui Li, Jing Gao, ChunMei Ying
The increasing prevalence of azole resistance in Candida albicans poses a growing problem for clinical treatment. Amino acid substitution of the 14α-demethylase (Erg11p) encoded by the ERG11 gene is one of the most common mechanisms involved in azole resistance. Although amino acid substitutions of Erg11p have been observed in many clinical isolates, only a few amino acid substitutions have been confirmed to be related to azole resistance. In this study, by amplifying and sequencing the open reading frame of the ERG11 gene from 55 clinical isolates, we identified 27 fluconazole-resistant isolates that harbor a novel amino acid substitution, T123I, in Erg11p, in addition to the previously described homozygous substitution Y132H...
February 25, 2017: FEMS Yeast Research
https://www.readbyqxmd.com/read/28333259/predisposing-factors-and-outcome-of-uncommon-yeast-species-related-fungaemia-based-on-an-exhaustive-surveillance-programme-2002-14
#3
Stéphane Bretagne, Charlotte Renaudat, Marie Desnos-Ollivier, Karine Sitbon, Olivier Lortholary, Françoise Dromer
Objectives: Using registry data to compare fungaemia caused by uncommon yeast species (UYS; i.e. other than Candida albicans , Candida glabrata , Candida parapsilosis , Candida tropicalis and Candida krusei ) and C. albicans -related fungaemia can reveal specific predisposing factors of UYS with potential impact on treatment strategies. Methods: We analysed 338 episodes of UYS fungaemia prospectively collected from 27 hospitals (Paris, France; 1 October 2002-31 December 2014) and compared these with 1998 single episodes of C...
March 5, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28331838/bibliometric-analysis-of-literature-on-antifungal-triazole-resistance-1980-2015
#4
Waleed M Sweileh, Ansam F Sawalha, Samah Al-Jabi, Sa'ed H Zyoud
BACKGROUND: Triazole antifungal agents play an important role in the treatment of a wide range of fungal infections. Little is known about antifungal triazole drug resistance when compared to antibiotic resistance. Therefore, this study was carried out to give a bibliometric overview of literature on triazole antifungal drug resistance. METHODS: Keywords related to triazole drug class and resistance were used in a search query in the Scopus search engine. The time span was set from 1980 to 2015...
March 2017: Germs
https://www.readbyqxmd.com/read/28329720/in-vitro-activity-of-farnesol-against-vaginal-lactobacillus-spp
#5
Fengjuan Wang, Zhaohui Liu, Dai Zhang, Xiaoxi Niu
OBJECTIVE: Farnesol, a quorum-sensing molecule in Candida albicans, can affect the growth of certain microorganisms. The objective of this study was to evaluate the in vitro activity of farnesol against vaginal Lactobacillus spp., which play a crucial role in the maintenance of vaginal health. METHODS: Growth and metabolic viability of vaginal Lactobacillus spp. incubated with different concentrations of farnesol were determined by measuring the optical density of the cultures and with the MTT assay...
March 7, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28329281/echinocandins-compared-to-fluconazole-for-candidemia-of-a-urinary-tract-source-a-propensity-score-analysis
#6
G Cuervo, C Garcia-Vidal, M Puig-Asensio, A Vena, Y Meije, M Fernández-Ruiz, E González-Barberá, M J Blanco-Vidal, A Manzur, C Cardozo, C Gudiol, J M Montejo, J Pemán, J Ayats, J M Aguado, P Muñoz, F Marco, B Almirante, J Carratalà
Background.: Whether echinocandins could be used to treat candidemia of a urinary tract source (CUTS) is unknown. We aimed to provide current epidemiological information of CUTS and to compare echinocandin to fluconazole treatment on CUTS outcomes. Methods.: A multicenter study of adult patients with candidemia was conducted in 9 hospitals. CUTS was defined as a candidemia with concomitant candiduria by the same organism associated with significant urological comorbidity...
February 27, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28329248/clinical-characteristics-of-wild-type-transthyretin-cardiac-amyloidosis-disproving-myths
#7
Esther González-López, Christian Gagliardi, Fernando Dominguez, Cristina Candida Quarta, F Javier de Haro-Del Moral, Agnese Milandri, Clara Salas, Mario Cinelli, Marta Cobo-Marcos, Massimiliano Lorenzini, Enrique Lara-Pezzi, Serena Foffi, Luis Alonso-Pulpon, Claudio Rapezzi, Pablo Garcia-Pavia
Aims: Wild-type transthyretin amyloidosis (ATTRwt) is mostly considered a disease predominantly of elderly male, characterized by concentric LV hypertrophy, preserved LVEF, and low QRS voltages. We sought to describe the characteristics of a large cohort of ATTRwt patients to better define the disease. Methods and results: Clinical findings of consecutive ATTRwt patients diagnosed at 2 centres were reviewed. ATTRwt was diagnosed histologically or non-invasively (LV hypertrophy ≥12 mm, intense cardiac uptake at 99mTc-DPD scintigraphy and AL exclusion)...
March 1, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28326813/breakthrough-candidemia-in-children-clinical-and-microbiological-characteristics-therapeutic-strategies-and-impact-on-outcomes
#8
Mei-Yin Lai, Jen-Fu Hsu, Shih-Ming Chu, I-Hsyuan Wu, Hsuan-Rong Huang, Chun-Chih Lin, I-Ta Lee, Ming-Chou Chiang, Ren-Huei Fu, Ming-Horng Tsai
AIM: To assess the characteristics, treatments, risk factors and outcomes of breakthrough candidemia in children. MATERIALS & METHODS: Episodes of breakthrough candidemia in children were compared with the remaining episodes in a 13-year cohort study. RESULTS: Out of 319 episodes, 45 (14.1%) were breakthrough candidemia. Breakthrough candidemia occurred in patients with more acutely ill conditions, and the majority was caused by non-albicans Candida species (73...
March 13, 2017: Future Microbiology
https://www.readbyqxmd.com/read/28325761/the-aryl-hydrocarbon-receptor-governs-epithelial-cell-invasion-during-oropharyngeal-candidiasis
#9
Norma V Solis, Marc Swidergall, Vincent M Bruno, Sarah L Gaffen, Scott G Filler
Oropharyngeal candidiasis (OPC), caused predominantly by Candida albicans, is a prevalent infection in patients with advanced AIDS, defects in Th17 immunity, and head and neck cancer. A characteristic feature of OPC is fungal invasion of the oral epithelial cells. One mechanism by which C. albicans hyphae can invade oral epithelial cells is by expressing the Als3 and Ssa1 invasins that interact with the epidermal growth factor receptor (EGFR) on epithelial cells and stimulate endocytosis of the organism. However, the signaling pathways that function downstream of EGFR and mediate C...
March 21, 2017: MBio
https://www.readbyqxmd.com/read/28316949/evaluation-of-the-role-of-probiotics-in-endodontic-treatment-a-preliminary-study
#10
Aarti Bohora, Sharad Kokate
AIMS AND OBJECTIVES: The principal goal of endodontics is the prevention of periapical infection. Acute and chronic apical periodontitis occur due to the persistence of pathogenic microorganisms such as Enterococcus faecalis and Candida albicans harboring the root canal systems of the teeth. The concept of the use of probiotics in addressing endodontic disease is new and has not been studied adequately. On the basis of the success of probiotics in periodontal treatment, this preliminary work was performed (a) to evaluate the antibacterial efficacy of probiotics against common endodontic pathogens, i...
January 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28315456/mechanisms-underlying-the-diuretic-effect-of-gomphrena-celosioides-mart-amaranthaceae
#11
Paulo Cesar de Paula Vasconcelos, Danilo Ramos Spessotto, Jane Vasconcelos Marinho, Marcos José Salvador, Arquimedes Gasparotto Junior, Candida Aparecida Leite Kassuya
ETHNOPHARMACOLOGICAL RELEVANCE: Gomphrena celosioides (Amaranthaceae) is a native medicinal plant found in Mato Grosso do Sul State that is used for treating urinary tract and kidney stones. This study aimed to evaluate the diuretic effects of ethanolic extract from G. celosioides (EEGC) on acute and extended diuresis to provide a pharmacological basis for its use in traditional medicine. AIM OF THE STUDY: To evaluate the diuretic and natriuretic activity of EEGC and its mechanism of action in an animal model...
March 14, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28314049/biological-evaluation-of-3-hydroxybenzyl-alcohol-an-extrolite-produced-by-aspergillus-nidulans-strain-kzr-132
#12
C Ganesh Kumar, Poornima Mongolla, Sujitha Pombala, Shiva Bandi, K Suresh Babu, Kallaganti Venkata Siva Ramakrishna
AIMS: The aim of the study was to purify and characterize a bioactive compound from Aspergillus nidulans strain KZR-132 and its biological evaluation. METHODS AND RESULTS: A bioactive extolite was purified from Aspergillus nidulans strain KZR-132, and its chemical structure was elucidated as 3-hydroxylbenzyl alcohol (3-HBA) based on (1) H and (13) C NMR, FT-IR and mass spectroscopic analysis. The antimicrobial efficacy of 3-HBA was established against Gram-positive, Gram-negative bacteria and different Candida strains...
March 17, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28303817/screening-of-invasive-fungal-infections-by-a-real-time-panfungal-pan-acf-polymerase-chain-reaction-assay-in-patients-with-haematological-malignancy
#13
Malini Rajinder Capoor, Shikha Puri, Hitesh Raheja, Ritin Mohindra, Dinesh Kumar Gupta, Pradeep Kumar Verma, Ranadeep Chowdhary
BACKGROUND: Invasive fungal infection (IFI) is a fatal infection in haematology patients. There is an urgent need for reliable screening methods facilitating timely diagnosis and treatment. A real-time panfungal polymerase chain reaction (PCR) assay based on TaqMan technology targeting 18S ribosomal RNA gene was used to screen whole blood specimen obtained from series of Haematology malignancy patients for IFIs. MATERIALS AND METHODS: The panfungal (Pan-ACF) assay was employed to investigate specimen from 133 patients in duplicate with suspected IFI...
January 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28302347/fungemia-due-to-saprochaete-capitata-in-a-non-neutropenic-patient-hospitalized-in-an-intensive-care-unit-after-cardiac-surgery
#14
C Cavanna, F Lallitto, F Mangione, F Tamarozzi, P Marone, P Ceriana
The majority of invasive fungal infections observed in non-neutropenic patients hospitalized in an intensive care unit are caused by Candida spp and current guidelines recommend echinocandins as the first-line treatment. Fungemias caused by filamentous or arthrosporic fungi such as Saprochaete capitata (previously named Geotrichum capitatum) are extremely rare. In fact, invasive infections due to S. capitata have been reported almost exclusively in neutropenic oncohematological patients. In this report, we describe a case of fungemia caused by S...
March 14, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28301603/drought-risk-assessment-under-climate-change-is-sensitive-to-methodological-choices-for-the-estimation-of-evaporative-demand
#15
Candida F Dewes, Imtiaz Rangwala, Joseph J Barsugli, Michael T Hobbins, Sanjiv Kumar
Several studies have projected increases in drought severity, extent and duration in many parts of the world under climate change. We examine sources of uncertainty arising from the methodological choices for the assessment of future drought risk in the continental US (CONUS). One such uncertainty is in the climate models' expression of evaporative demand (E0), which is not a direct climate model output but has been traditionally estimated using several different formulations. Here we analyze daily output from two CMIP5 GCMs to evaluate how differences in E0 formulation, treatment of meteorological driving data, choice of GCM, and standardization of time series influence the estimation of E0...
2017: PloS One
https://www.readbyqxmd.com/read/28299831/effectiveness-of-ageratina-pichinchensis-extract-in-patients-with-vulvovaginal-candidiasis-a-randomized-double-blind-and-controlled-pilot-study
#16
Ofelia Romero-Cerecero, Ana Laura Islas-Garduño, Alejandro Zamilpa, Jaime Tortoriello
Previous clinical studies have demonstrated the antifungal effectiveness of Ageratina pichinchensis extracts when topically administered to patients with dermatomycosis. The objective of this study was to evaluate the effectiveness and tolerability of a 7% standardized extract of A. pichinchensis (intravaginal) in patients with vulvovaginal candidiasis. The extract was standardized in terms of its encecalin content and administered during 6 days to patients with Candida albicans-associated vulvovaginitis. The positive control group was treated with Clotrimazole (100 mg)...
March 16, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28296382/human-%C3%AE-defensin-6-a-small-peptide-that-self-assembles-and-protects-the-host-by-entangling-microbes
#17
Phoom Chairatana, Elizabeth M Nolan
Human α-defensin 6 (HD6) is a 32-residue cysteine-rich peptide that contributes to innate immunity by protecting the host at mucosal sites. This peptide is produced in small intestinal Paneth cells, stored as an 81-residue precursor peptide named proHD6 in granules, and released into the lumen. One unusual feature of HD6 is that it lacks the broad-spectrum antimicrobial activity observed for other human α-defensins, including the Paneth cell peptide human α-defensin 5 (HD5). HD6 exhibits unprecedented self-assembly properties, which confer an unusual host-defense function...
March 15, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28295299/oral-findings-and-dental-behaviour-before-and-after-liver-transplantation-a-single-centre-cross-sectional-study
#18
Anne Kauffels, Gerhard Schmalz, Otto Kollmar, Jan E Slotta, Michael Weig, Uwe Groß, Oliver Bader, Dirk Ziebolz
OBJECTIVE: The aim of this single-centre, cross-sectional study was to evaluate dental, periodontal and mycological findings, as well as oral behaviour, in patients before (pre-LTx) and after (post-LTx) liver transplantation. METHODS: A total of 47 patients pre-LTx and 119 patients post-LTx were asked to participate. Oral health behaviour was assessed using a standardised questionnaire. Oral examinations included dental [decayed, missing and filled teeth (DMFT) index] and periodontal [papillary bleeding index (PBI), periodontal probing depth (PPD) and clinical attachment loss (CAL)] findings...
March 10, 2017: International Dental Journal
https://www.readbyqxmd.com/read/28292981/vaginal-heparan-sulfate-linked-to-neutrophil-dysfunction-in-the-acute-inflammatory-response-associated-with-experimental-vulvovaginal-candidiasis
#19
Junko Yano, Mairi C Noverr, Paul L Fidel
Despite acute inflammation by polymorphonuclear neutrophils (PMNs) during vulvovaginal candidiasis (VVC), clearance of Candida fails to occur. The purpose of this study was to uncover the mechanism of vaginal PMN dysfunction. Designs included assessing PMN migration, proinflammatory mediators, and tissue damage (by analysis of the activity of lactate dehydrogenase [LDH]) in mice susceptible (C3H/HeN-C57BL/6) or resistant (CD-1) to chronic VVC (CVVC-S or CVVC-R) and testing morphology-specific Candida albicans strains under conditions of preinduced PMN migration (CVVC-S mice) or PMN depletion (CVVC-R mice)...
March 14, 2017: MBio
https://www.readbyqxmd.com/read/28290130/the-choosing-wisely-initiative-in-infectious-diseases
#20
REVIEW
Clara Lehmann, Reinhard Berner, Johannes R Bogner, Oliver A Cornely, Katja de With, Susanne Herold, Winfried V Kern, Sebastian Lemmen, Mathias W Pletz, Bernhard Ruf, Bernd Salzberger, Hans Jürgen Stellbrink, Norbert Suttorp, Andrew J Ullmann, Gerd Fätkenheuer, Norma Jung
OBJECTIVE: "Choosing Wisely" is a growing international campaign aiming at practice changes to improve patient health and safety by both, conduct of essential and avoidance of unnecessary diagnostic, preventive and therapeutic procedures. The goal is to create an easily recognizable and distributable list ("Choosing Wisely items") that addresses common over- and underuse in the management of infectious diseases. METHODS: The German Society of Infectious Diseases (DGI) participates in the campaign "Klug Entscheiden" by the German Society of Internal Medicine...
March 13, 2017: Infection
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