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https://www.readbyqxmd.com/read/28913339/ulcerative-gastritis-and-esophagitis-in-two-children-with-sarcina-ventriculi-infection
#1
Tim G J de Meij, Michiel P van Wijk, Aart Mookhoek, Andries E Budding
Sarcina ventriculi is a Gram-positive, obligate anaerobic coccus, with a characteristic morphology. Only 22 cases of human infections by this microorganism, including 7 in children, have been reported in literature so far. Affected subjects usually present with abdominal pain, nausea, vomiting, and delayed gastric emptying. However, life-threatening complications, like emphysematous gastritis and gastric perforation have also been described. Gastroparesis and gastric outlet obstruction have been considered as a potential etiologic factor...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28911903/the-vaccines-and-antibodies-associated-with-als3p-for-treatment-of-candida-albicans-infections
#2
REVIEW
Xue Sui, Lan Yan, Yuan-Ying Jiang
Candida albicans is the most common fungal microorganism in healthy individuals, as well as the cause of high mortality infections in high-risk hosts such as immunocompromised patients. Antifungal vaccines and monoclonal antibodies useful for active or passive immunizations have recently generated considerable excitement for the treatment of fungal infections. The cell wall proteins of C. albicans, which are crucial for virulence and pathogenicity, are attractive target antigens. Als3p, a member of the C. albicans agglutinin-like sequence (ALS) family, is a hyphal-specific glycophosphatidylinositol cell wall protein that plays a key role in the interaction with host cells...
September 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28911047/the-role-of-in-vitro-susceptibility-testing-in-the-management-of-candida-and-aspergillus
#3
Luis Ostrosky-Zeichner, David Andes
Antifungal susceptibility testing has evolved from a research technique to a standardized and well-validated tool for the clinical management of fungal infections and for epidemiological studies. Genetic mutations and phenotypic resistance in vitro have been shown to correlate with clinical outcomes and treatment failures, and this in turn has led to the creation of clinical breakpoints and, more recently, epidemiological cutoff values for clinically relevant fungal pathogens. Resistance mechanisms for Candida and Aspergillus species have been extensively described and their corresponding genetic mutations can now be readily detected...
August 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28911043/multidrug-resistant-candida-epidemiology-molecular-mechanisms-and-treatment
#4
Maiken Cavling Arendrup, Thomas F Patterson
Invasive Candida infections remain an important cause of morbidity and mortality, especially in hospitalized and immunocompromised or critically ill patients. A limited number of antifungal agents from only a few drug classes are available to treat patients with these serious infections. Resistance can be either intrinsic or acquired. Resistance mechanisms are not exchanged between Candida; thus, acquired resistance either emerges in response to an antifungal selection pressure in the individual patient or, more rarely, occur due to horizontal transmission of resistant strains between patients...
August 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28904319/in-vivo-study-of-antifungal-effects-of-low-molecular-weight-chitosan-against-candida-albicans
#5
Zahra Atai, Mohammad Atai, Javid Amini, Negar Salehi
This study investigated the antifungal effects of low-molecular-weight chitosan solution on Candida albicans in denture stomatitis in comparison with nystatin suspension. This randomized, sing-leblind clinical trial included 40 patients diagnosed with denture stomatitis. Patients were divided into two groups, wherein one was treated with chitosan and the other with nystatin for 2 weeks. Changes in the erythematous area were recorded during and after treatment. A palatal smear was obtained for each patient before and after treatment to determine the number of blastospores and mycelia of C...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/28904185/thinking-beyond-the-common-candida-species-need-for-speciation-of-candida-due-to-the-emergence-of-multidrug-resistant-candida-auris
#6
Shawn R Lockhart, Brendan R Jackson, Snigdha Vallabhaneni, Luis Ostrosky-Zeichner, Peter G Pappas, Tom Chiller
Candida species are one of the leading causes of nosocomial infections. Because much of the treatment for Candida infections is empiric, some institutions do not identify Candida to species. With the worldwide emergence of the multidrug resistant species Candida auris, identification of Candida to species level has new clinical relevance. Species should be identified for invasive candidiasis isolates, and speciation can be considered for selected non-invasive isolates to improve detection of C. auris.
September 13, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28903607/candida-endocarditis-systematic-literature-review-from-1997-to-2014-and-analysis-of-29-cases-from-the-italian-study-of-endocarditis
#7
Simone Giuliano, Maurizio Guastalegname, Alessandro Russo, Marco Falcone, Veronica Ravasio, Marco Rizzi, Matteo Bassetti, Pierluigi Viale, Maria Bruna Pasticci, Emanuele Durante-Mangoni, Mario Venditti
Candida Endocarditis (CE) is a deadly disease. It is of paramount importance to assess risk factors for acquisition of both Candida native (NVE) and prosthetic (PVE) valve endocarditis and relate clinical features and treatment strategies with the outcome of the disease. Areas covered: We searched the literature using the Pubmed database. Cases of CE from the Italian Study on Endocarditis (SEI) were also included. Overall, 140 cases of CE were analyzed. Patients with a history of abdominal surgery and antibiotic exposure had higher probability of developing NVE than PVE...
September 14, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28899499/mechanisms-underlying-antiatherosclerotic-properties-of-an-enriched-fraction-obtained-from-ilex-paraguariensis-a-st-hil
#8
Patrícia Gonçalves Santiago, Francielly Mourão Gasparotto, Karimi Sater Gebara, Flavia Barbieri Bacha, Francislaine Aparecida Dos Reis Lívero, Maria Angélica Strapazon, Euclides Lara Cardozo Junior, Cândida Aparecida Leite Kassuya, Lauro Mera de Souza, Arquimedes Gasparotto Junior
BACKGROUND: Ilex paraguariensis A. St. Hil. var. paraguariensis (Aquifoliaceae) popularly known as 'mate' is an important species native to South America. Despite numerous studies showing significant antioxidant and lipid lowering properties, the antiatherosclerotic mechanisms of this species remain unknown. PURPOSE: To evaluate the possible antiatherosclerotic effects of a butanolic fraction (n-BFIP) obtained from I. paraguariensis and to investigate the molecular mechanisms involved in this activity...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28898353/in-vivo-chemotherapeutic-insight-of-a-novel-isocoumarin-3-hexyl-5-7-dimethoxy-isochromen-1-one-genotoxicity-cell-death-induction-leukometry-and-phagocytic-evaluation
#9
Flávio Henrique Souza de Araújo, Débora Rojas de Figueiredo, Sarah Alves Auharek, João Renato Pesarini, Alisson Meza, Roberto da Silva Gomes, Antônio Carlos Duenhas Monreal, Andréia Conceição Milan Brochado Antoniolli-Silva, Dênis Pires de Lima, Candida Aparecida Leite Kassuya, Adilson Beatriz, Rodrigo Juliano Oliveira
Chemotherapy is one of the major approaches for the treatment of cancer. Therefore, the development of new chemotherapy drugs is an important aspect of medicinal chemistry. Chemotherapeutic agents include isocoumarins, which are privileged structures with potential antitumoral activity. Herein, a new 3-substituted isocoumarin was synthesized from 2-iodo-3,5-dimethoxy-benzoic acid and oct-1-yne in a cross-coupling Sonogashira reaction followed by a copper iodide-catalyzed intramolecular cyclization as key step using MeOH/Et3N as the solvent system...
July 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28894842/retroperitoneal-actinomycosis-a-rare-sequela-of-an-infected-obstructing-ureteral-stone
#10
Elizabeth Bearrick, Colby A Dixon, Joshua Rhein, Michael S Borofsky
Background: Actinomycosis is a condition in which Actinomyces, a normal component of the oral and gastrointenstial flora, becomes pathogenic in the setting of damaged tissue, leading to widespread tissue destruction across fascial planes. Prior literature describing this condition is rare, particularly cases involving the retroperitoneum. In this study, we report a case of retroperitoneal actinomycosis caused by an infected, obstructing ureteral stone. Case Presentation: A 48-year-old woman with a history of substance abuse, malnutrition, and gastric bypass presented to the emergency room with a 3-week history of abdominal pain and fevers...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28894556/how-we-manage-invasive-fungal-disease-in-acute-myeloid-leukemia-patients-with-glucose-6-dehydrogenase-deficiency
#11
Marco Sanna, Giovanni Caocci, Giorgio La Nasa
Glucose-6-phosphate dehydrogenase (G6PD) represents a common human enzyme defect, particularly prevalent in the Mediterranean, African e Asian area, where malaria was or is still endemic. Recently, we identified G6PD deficiency as a risk factor for developing invasive fungal disease (IFD) and particularly Candida Sepsis in patients undergoing intensive chemotherapy for acute myeloid leukemia (AML), suggesting that there is an urgent need for strategies to properly manage this kind of patients at high risk of invasive mycoses...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28894080/the-portuguese-society-of-rheumatology-position-paper-on-the-use-of-biosimilars-2017-update
#12
Filipe C Araújo, Alexandre Sepriano, Filipa Teixeira, Diogo Jesus, Teresa Martins Rocha, Patrícia Martins, Catarina Tenazinha, Ana Cordeiro, Ana Filipa Mourão, Cândida Silva, Carlos Vaz, Cátia Duarte, Cristina Ponte, Fernando Pimentel Dos Santos, Helena Canhão, Helena Santos, José Bravo Pimentão, José Canas da Silva, Joaquim Pereira, José António Pereira da Silva, Luís Cunha Miranda, Margarida Oliveira, Maria João Saavedra, Pedro Gonçalves, Sandra Falcão, Susana Capela, João Eurico Fonseca
Biosimilars are new and more affordable similar versions of previously approved reference biological drugs. Following the approval of the first monoclonal antibody biosimilar in 2013, the Portuguese Society of Rheumatology issued a position paper on the use of biosimilars in rheumatic conditions covering efficacy, safety, extrapolation, interchangeability, substitution and pharmacovigilance. However, as this is a rapidly evolving field, it was felt that the knowledge and evidence gathered since then justified an update of these statements...
July 21, 2017: Acta Reumatológica Portuguesa
https://www.readbyqxmd.com/read/28893786/novel-cell-killing-mechanisms-of-hydroxyurea-and-the-implication-towards-combination-therapy-for-the-treatment-of-fungal-infections
#13
Amanpreet Singh, Ameeta Agarwal, Yong-Jie Xu
We have previously reported that an erg11 mutation affecting ergosterol synthesis and a hem13 mutation in the heme synthesis pathway significantly sensitize the fission yeast Schizosaccahromyces pombe to hydroxyurea (HU) (1, 2). Here we show that treatment with the inhibitors of Erg11 and the heme biosynthesis phenocopies the two mutations in sensitizing wild type cells to HU. Importantly, HU synergistically interacts with the heme biosynthesis inhibitor sampangine and several Erg11 inhibitors, the antifungal azoles, in causing cell lethality...
September 11, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28892177/lasioglossins-lliii-affects-the-morphogenesis-of-candida-albicans-and-reduces-the-duration-of-experimental-vaginal-candidiasis-in-mice
#14
Alena Vrablikova, Lydie Czernekova, Romana Cahlikova, Zbynek Novy, Milos Petrik, Saima Imran, Zdenek Novak, Michal Krupka, Vaclav Cerovsky, Jaroslav Turanek, Milan Raska
Lasioglossins represent a group of peptides with identified antimicrobial activity. We investigated the inhibitory effects of two synthetic lasioglossin derivatives LLIII and D-isomeric variant LLIII-D on the morphological changes of Candida albicans in vitro and the effect of local administration of LLIII during experimental murine candidiasis. C. albicans blastoconidia were grown in the presence of lasioglossin LLIII or LLIII-D at the concentration of 11.5 μM and 21 μM for 1, 2, and 3 days and the viability was determined by flow cytometry using Eosin Y staining...
September 11, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28888760/an-in-vitro-investigation-of-indigenous-south-african-medicinal-plants-used-to-treat-oral-infections
#15
S Akhalwaya, S van Vuuren, M Patel
ETHNOPHARMACOLOGICAL RELEVANCE: Over a 120 South African medicinal plants are used for the treatment of oral diseases. Despite the vast collection of antimicrobial studies being done on South African plants, there is still limited research on pathogens associated with oral infections. In consultation with the available ethnobotanical literature, this study investigates the antimicrobial efficacy of some South African medicinal plants against oral pathogens. AIM OF THE STUDY: To provide a detailed account of the antimicrobial properties of selected South African medicinal plants used traditionally to treat oral infections...
September 7, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28886952/clinical-manifestations-of-candidemia-caused-by-uncommon-candida-species-and-antifungal-susceptibility-of-the-isolates-in-a-regional-hospital-in-taiwan-2007-2014
#16
Wei-Lun Liu, Chih-Cheng Lai, Ming-Chi Li, Chi-Jung Wu, Wen-Chien Ko, Yi-Li Hung, Hung-Jen Tang, Po-Ren Hsueh
OBJECTIVE: This retrospective study investigated clinical manifestations of candidemia caused by uncommon Candida species and antifungal susceptibility of the isolates in a regional hospital in Taiwan. METHODS: The uncommon Candida species was initially defined as Candida species other than C. albicans, C. tropicalis, C. glabrata complex, C. parapsilosis complex and C. krusei. All uncommon Candida isolates were identified and confirmed by molecular methods. In vitro susceptibility testing of the uncommon Candida species to nine antifungal agents was conducted using the broth microdilution method with the Sensititre YeastOne (SYO) system (Trek Diagnostic Systems, Ltd...
August 26, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28886681/molecular-evolution-of-antifungal-drug-resistance
#17
Nicole Robbins, Tavia Caplan, Leah E Cowen
The fungal pathogens Candida albicans, Cryptococcus neoformans, and Aspergillus fumigatus have transitioned from a rare curiosity to a leading cause of human mortality. The management of infections caused by these organisms is intimately dependent on the efficacy of antifungal agents; however, fungi that are resistant to these treatments are regularly isolated in the clinic, impeding our ability to control infections. Given the significant impact fungal pathogens have on human health, it is imperative to understand the molecular mechanisms that govern antifungal drug resistance...
September 8, 2017: Annual Review of Microbiology
https://www.readbyqxmd.com/read/28884772/afm-combined-to-atr-ftir-reveals-candida-cell-wall-changes-under-caspofungin-treatment
#18
Fabienne Quilès, Isabelle Accoceberry, Célia Couzigou, Grégory Francius, Thierry Noël, Sofiane El-Kirat-Chatel
Fungal pathogens from Candida genus are responsible for severe life-threatening infections and the antifungal arsenal is still limited. Caspofungin, an antifungal drug used for human therapy, acts as a blocking agent of the cell wall synthesis by inhibiting the β-1,3-glucan-synthase encoded by FKS genes. Despite its efficiency, the number of genetic mutants that are resistant to caspofungin is increasing. An important challenge to improve antifungal therapy is to understand cellular phenomenon that are associated with drug resistance...
September 8, 2017: Nanoscale
https://www.readbyqxmd.com/read/28884129/candidemia-in-the-neonatal-intensive-care-unit-a-retrospective-observational-survey-and-analysis-of-literature-data
#19
Giuseppina Caggiano, Grazia Lovero, Osvalda De Giglio, Giovanna Barbuti, Osvaldo Montagna, Nicola Laforgia, Maria Teresa Montagna
We evaluated the epidemiology of Candida bloodstream infections in the neonatal intensive care unit (NICU) of an Italian university hospital during a 9-year period as a means of quantifying the burden of infection and identifying emerging trends. Clinical data were searched for in the microbiological laboratory database. For comparative purposes, we performed a review of NICU candidemia. Forty-one candidemia cases were reviewed (overall incidence, 3.0 per 100 admissions). Candida parapsilosis sensu stricto (58...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28882013/antimicrobial-management-in-nosocomial-peritonitis-microbiota-drug-and-time
#20
REVIEW
A Montero, P Salgado Aranda, F Gilsanz, E Maseda
Complicated intra-abdominal infection requires surgical treatment and broad-spectrum empiric antibiotic treatment used early. The rapid spread of multidrug-resistant bacteria has become a serious threat, especially in critical care units. The excessive use of carbapenems has led to carbapenemase-producing Enterobacteriaceae, leaving tigecycline and colistin as therapeutical options. The new antimicrobials, ceftazidime-avibactam and ceftolozane-tazobactam open new horizons in the treatment of multi-drug resistant Enterobacteriaceae...
September 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
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